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Guide to Tire Pressure Monitoring Systems
Notice to our customers: Important changes affecting vehicles equipped with Tire Pressure Monitoring Systems have been put into place.
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What Is a Tire Pressure Monitoring System?
TPMS stands for Tire Pressure Monitoring System. It is a feature on many late model vehicles that monitors tire pressure and warns the driver, with a light on the dash, if one or more of the tires’ pressure falls 25% below the original equipment manufacturer’s recommended tire pressure.
See the questions below to learn more about TPMS, and how to check if your vehicle is equipped with TPMS.
Why does TPMS exist?
As a result of tire-related safety concerns, Congress passed the TREAD Act in 2000. The TREAD Act requires vehicle manufacturers to install TPMS in new vehicles with a gross vehicle weight of 10,000 pounds or less.
What vehicles have it?
Passenger cars, SUVs, and light trucks. TPMS has been progressively introduced in new vehicles since 2005. Refer to your owner’s manual for more information.
How do I check to see if my vehicle has it?
When you start your vehicle, look at the dash for the TPMS warning lamp. If you see the warning lamp light up momentarily, your vehicle is equipped with TPMS.
What does it mean when the warning lamp is on?
The warning lamp should light up briefly when the vehicle is started. But if the light stays on, that means tire pressure is low in one or more of the tires, or the system is not able to read the sensors. In this case, you should have your tire air pressure checked. We provide this service for free at all of our Les Schwab locations.
What kind of maintenance is required on my TPMS?
Replacement or relocation of a TPMS sensor, or sometimes even just inflating a tire may cause the TPMS to get out of whack. Generally, recalibration is easy to perform: we provide this service to customers free at all Les Schwab Tire Centers.
Does this mean I don’t need to check my tire pressure?
Regardless of TPMS, we recommend tire pressure checks every 30 days. Properly maintained tire pressure decreases tire wear and improves vehicle safety, handling, braking and fuel mileage. Come in anytime for a free air check.
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Run-Flat Tires: How They Work & When Should You Use Them
No matter where you drive, one stray nail or screw can cause a flat tire and send you to the side of the road. Run-flat tires change all that. However, there are trade-offs. Here’s what you need to know about run-flat tires, why some manufacturers are using them instead of spare tires, and why you might or might not want them for your vehicle.
What Are Run-Flat Tires?
Also called zero-pressure tires, run-flat tires are designed with reinforced, thicker sidewalls. They’re about ¾" thick as compared to ⅛" thick on standard tires. This means the sidewalls of the tire should be able to support the weight of your vehicle even if you experience a sudden and complete loss of air pressure due to a puncture or tire failure.
Additionally, some run-flat tires allow you to travel for a short distance at speeds of up to 50 miles per hour. In other words, they live up to their name and are built so you can skip the spare and drive on them even when they are technically flat.
How Long Can You Drive on a Run-Flat Tire
Run-flat technology is designed to help you remain in control even after losing all or most of the air pressure in your tires. If you get a flat, some run-flat tires allow you to drive for up to 50 miles at up to 50 miles per hour. That should be enough to get to your local Les Schwab for a repair or replacement.
How Do Run-Flat Tires Work?
Standard tires do not support the weight of your vehicle. The air pressure does that job. When a standard tire loses air pressure, the sidewalls on those tires fold and the tire becomes unsafe for driving. If you go too far, you can ruin the tire and maybe even the wheel.
Run-flat technology also uses air pressure to support the weight of your vehicle, but the sidewalls on run-flats are reinforced so that even if you experience a sudden and complete loss of air pressure, you can stay in control and drive for upwards of 50 miles to a nearby Les Schwab. As long as there is no damage to the sidewall or other parts of the tire, we may be able to repair your run-flat tire. However, the damage warranty, if there is one, might not cover the damage.
How Run-Flats Compare to Standard Tires?
When purchased from us, both come with the Les Schwab Best Tire Value Promise for the life of the tire. Additionally, both technologies fit onto standard wheels or rims. See our article Can I Mix Run-Flat Tires with Standard Ones for some added insight.
The Benefits of Run-Flat Tires
- Safety: More control in the event of a sudden loss of tire pressure.
- Options: The ability to drive to your local repair shop after a flat.
- Convenience: No need to carry a spare or change a tire on the side of the road.
The Disadvantages of Run-Flat Tire Technology
- Comfort: There can be diminished ride quality with the stiffer sidewall.
- Noise: Some run-flat tires create more road noise inside the vehicle.
- Repairs: While run-flat tires might get you to a repair facility, the tire might not be repairable in most situations.
- Cost: Most run-flat tires come at a premium price.
- Availability: Some specific sizes and tread options may not be readily available.
When Should You Use Run-Flat Tires?
Roughly 15% of all new vehicles sold in the U.S. come with run-flat tires, according to the National Highway Traffic Safety Administration (NHTSA). In most cases, this means the vehicle does not have or was not equipped with a spare tire, reducing the weight of the vehicle and increasing cargo space. If you want to free up space in your trunk or under the vehicle, and want the added freedom of driving on a “flat” tire for up to 50 miles instead of stopping to change to a spare, you might consider choosing run-flat tires.
Why Were Run-Flat Tires Created?
If you’ve purchased a new car, you may have noticed that many manufacturers have removed the spare tire. This is done to reduce weight, improve fuel efficiency, and provide more cargo space. But what happens if you get a flat? You’ll find that those carmakers may have given you an emergency tire repair kit or equipped the vehicle with run-flat tires.
When it comes to convenience, run-flat tires are great. But the real reason they were invented was to improve the safety and steering response of high-end sports cars in case of tire failure. Over the decades since this technology was first introduced, run-flat tires have become more common on some high-end vehicles.
Ask Les Schwab About Run-Flat Tires for Your Vehicle
If your vehicle came standard with run-flat tires, you might consider it as a viable option — especially when your vehicle does not have a spare. If your vehicle did not come standard with run-flat tires, or if you’re unsure if you already have run-flat tires, stop by your local Les Schwab for advice. Depending on your vehicle and driving needs, our team can help you decide if run-flat technology is right for you.
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Performance Tire Siping
What Is Siping and How Is It Done?
Siping is the process of cutting thin slits across the surface of a tire to improve traction for driving in snowy, wet or icy conditions. Siping can also help manage tire heat when the road is overly hot.
Siping is done by placing your tires (new or used) on a specially designed machine that rotates your tires while making small, nearly invisible 90-degree cuts in your tread. It’s actually easier to tell if a tire is siped by the improvement in vehicle handling than by visual inspection.
Independent studies have found that siped tires help you stop your vehicle sooner. Find out how siping will improve your traction in the video, “Get better traction with tire siping” or read on below.
Should I Get My Tires Siped?
Tire siping improves traction and braking, makes for a smoother ride, and prolongs tire life. Siping won’t reduce tire performance in any way. The tire tread retains its toughness due to the patented spiral cutting process. This leaves uncut areas known as tie bars intact, keeping your tread strong.
Better Traction
The surface of your tire is made up of many smaller surfaces called tread blocks. These surfaces are especially important when it comes to icy or wet road conditions. Tread blocks get their gripping power from the numerous sharp surrounding edges. Siping provides even more of these gripping edges.
Improved Braking
Research has shown the most effective braking power occurs immediately prior to losing traction. Siping extends the window allowed for maximum braking power, by giving the existing tread a helping hand.
Smoother Ride
Your tires have to absorb impacts from the road’s surface. When that surface is more coarse or rough, your tires have even more work to do. Siping gives your tires micro-flexibility, resulting in a smoother ride. This, in turn, reduces the wear on your tire’s carcass (the tread, bead, sidewall, shoulder, and ply) and lengthens tire life.
Longer Tire Life
Heat generation is a common cause of rapid tire wear and even tire failure. While this heat is a natural result of friction, too much can be a negative.
Siping reduces friction heat and its effect on your tire by allowing the tire to cool. The sipes act by isolating heat into small “corrals” and allowing air to pass between them, thereby dispersing the heat and naturally cooling the tire.
Why Don’t My Tires Come Siped From the Manufacturer?
First, the siping process we use would be too expensive and time-consuming for manufacturers. Plus, typical factory siping leaves small, vacant gaps in the tire tread. The Les Schwab siping process creates gripping edges without gaps and without removing any rubber, allowing the individual sipes to support each other.
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How to Choose the Right Truck Tire
Choosing the right tires for your vehicle is an important decision. When you drive a light truck, SUV, or crossover, the tires you choose can have a direct impact on traction, comfort, road noise, tread life, and durability. Here’s a quick guide to help you decide what truck tires are the right fit for your on- and off-road needs.
H/T (Highway Terrain) Tires for Daily Commute and Highway Driving
Chances are your SUV, crossover, or light truck came standard with a set of H/T tires built for highway driving. If you don’t plan on going off-road, and want a tire that’s great for dry and wet road conditions, then an H/T tire is probably a good option.
Benefits:
- Smooth and quiet ride
- Wet weather performance
- Long tread life
Les Schwab Tip: H/T tires aren’t designed for prolonged use on gravel roads or in off-road conditions. If you plan to take your vehicle off the highway, it may be best to upgrade to an A/T tire for better traction and performance.
A/T (All-Terrain) Tires for On- and Off-Road Performance
Drivers who regularly find themselves taking dirt and gravel roads in between long stretches of highway driving, should look at A/T tires. This includes folks who like to take the road less traveled on their way to a great camping spot or other outdoor activity.
The deeper tread design is optimized for a comfortable ride on pavement, but built to grip in other conditions. Additionally, some A/T tires are built for all-weather, year-round driving including snow and rain.
Benefits:
- More aggressive looks (gives your vehicle a great appearance)
- All-weather traction (including wet and winter conditions)
- Long tread life
- Durability
Les Schwab Tip: Because A/T tires are more rugged than H/T, there can be a slight increase in road noise. However, A/T tires offer the best of both worlds with comfortable daily driving, off-road performance, and visual appeal.
M/T (Mud Terrain) Tires for Off-road Enthusiasts
You know who you are. You drive a rig that is either lifted or already offers plenty of clearance for your favorite pastime: driving in extreme off-road conditions, including mud, dirt, gravel, and rock. Or maybe you just like the way a set of rugged, aggressive tires looks on your vehicle, even if they never leave the blacktop. Either way, M/T tires are for you.
Benefits:
- Aggressive looks
- Maximum durability
- Ultimate traction in mud, dirt, rocks, and gravel
Les Schwab Tip: M/T tires were first created for military and forestry applications, which means they’re designed for extremely rugged conditions. Because of the special tread design, they can be noisier than A/T and H/T options.
Get the Right Tires for your Truck at Les Schwab
Our experts can give you advice based on your driving needs. Stop by today and we’ll get you safely back on the road with our best tire value promise at no charge, including our lifetime tire and mileage care, and peace-of-mind tire protection.
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Tire Rotation: It’s Preventive Care for Your Tires
Why should you get your tires rotated? Because it’s one of the easiest ways to extend the life of your tires and get the most miles out of them. And you only need to do it a couple of times a year.
- What is a Tire Rotation?
- Why Are Tire Rotations Important?
- How Often Should You Get a Tire Rotation?
- How Long Does a Tire Rotation Take?
- Tire Rotation Patterns
- How Much Does a Tire Rotation Cost at Les Schwab?
Already know you need a tire rotation? Come visit us at one of our local stores or schedule an appointment.
What is a Tire Rotation?
Rotating the tires on your vehicle means moving them to different positions on your car or truck. This helps promote even tread wear on all four tires.
No matter how you drive, front and rear tires can wear at different rates. Tires that are mounted on the drive axle (the front two wheels on a front-wheel drive or back two on a rear-wheel drive) wear more quickly than the “free rolling” tires on the other axle.
Why Are Tire Rotations Important?
Properly rotated tires can make for a smoother ride. It can also extend the life of your tires, saving you both time and money. By rotating your tires, you even out the wear to get the most tread life from every tire. Regular rotations are equally important, even if you have an all-wheel drive vehicle.
How Often Should You Get a Tire Rotation?
A good rule of thumb is every 5,000 miles. Depending on your vehicle, driving style, and tire type, you may need to rotate your tires more or less often. If you’re not sure, stop by Les Schwab. We’ll help you come up with a rotation schedule.
Regular tire rotations can help spot uneven tire wear early. Going too long between rotations may result in a wear pattern that can’t be fixed, no matter where the tire is moved on the vehicle. These wear patterns could result in the need for new tires sooner than expected.
Here are some ways to remember your next rotation.
- Watch your odometer and get your vehicle in for a rotation every 5,000 miles.
- Put a rotation reminder on your calendar.
- Sign up for service reminders by providing your email address the next time you’re in a store.
- When you change your oil, check your mileage for a possible tire rotation.
How Long Does a Tire Rotation Take?
Getting your tires rotated every 5,000 miles is generally a pretty quick process. The professionals at Les Schwab will take the time to do a thorough tire rotation by also balancing your Les Schwab tires, checking your air pressure, doing a visual check of important safety systems, and documenting anything you should be aware of during the process. Once your vehicle is in our service bays, you can expect this procedure to be completed in about half an hour. Taking the time to make tire rotations a part of your normal vehicle maintenance regimen can add significant life to your tires, promote even tire wear for a smoother and more comfortable ride, and save you money in the long run.
Tire Rotation Patterns
The standard tire rotation is front-to-rear, but there are multiple patterns that could also help promote long tire life.
Front-to-rear
- Rear tires move to front on same side of vehicle
- Used when wear is normal, and also when tires have directional tread (are designed to roll in one direction)
Forward cross (for front-wheel drive vehicles)
- Front tires move straight back to the rear
- Rear tires cross to opposite sides on front
- Used when rear tires show uneven wear
X pattern (for all types of vehicles)
- Front tires shift to opposite rear positions
- Rear tires cross to opposite front positions
- Used when there’s uneven wear
Rearward cross (for all-wheel, rear-wheel or four-wheel drive vehicles)
- Rear tires move straight up to front
- Front tires cross to opposite rear positions
- Used when there’s uneven front-tire wear
Side-to-Side (for staggered (differently sized) wheels)
- Front two tires are moved to opposite sides on front axle
- Rear two tires are moved to opposite sides on back axle
What Tire Technicians Look for When Rotating Your Tires
Here’s what Les Schwab tire pros consider to properly rotate and position the tires on your vehicle.
- What kind of vehicle do you drive (front-, rear-, all-, four-wheel)?
- Do the tires show uneven wear? Where?
- Do they have directional tread?
- Are there any custom wheel-tire setup considerations, like staggered wheels (different wheel sizes on front and back)? Any offset concerns?
As always, check your owner’s manual for specific recommendations from the manufacturer.
How Much Does a Tire Rotation Cost at Les Schwab?
If you have Les Schwab tires on your vehicle, rotations are free for the life of those tires. Plus we balance your wheels as part of the service. Don’t have Les Schwab tires? Our pros can still help maximize the life of your tires. Stop by your local Les Schwab for a quick estimate.
Trust Les Schwab to Rotate Your Tires
Don’t put tire rotations off. This simple task can maximize the life of your tires. When you buy tires from Les Schwab, we rotate them for free on most vehicles. Plus, we provide free rotation reminders by email. Just ask at your local store.
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Tire Size Explained: What Do The Numbers On The Side Of A Tire Mean?
Whether you’re switching out your tires for a different look or added performance, a good place to start your search for that new tread is the sidewall on one of your existing tires. The numbers and letters on that sidewall represent everything from the tire type and width to the aspect ratio, construction type, diameter, load index, and speed rating. Here’s how to read the sidewall on your tires.
Tire Size Meanings
The numbers and letters on the sidewall can be confusing. Here’s what each one means.
A: TIRE TYPE
The first letter in the code tells you what class of tire it is.
- P stands for passenger vehicle tire. P-class tires include cars, SUVs, crossovers, minivans and smaller pickup trucks, as well as EVs (electric vehicles). While the right load capacity can be achieved for electric vehicles with a standard passenger vehicle tire, special EV tires may be available for some vehicles. Look for the letters EV on the sidewall.
- LT means light truck tire, designed for vehicles capable of carrying heavy loads, towing trailers, or for those looking for an extra heavy-duty option. These are often equipped on three-quarter or 1-ton trucks and SUVs.
- ST stands for Special Trailer. These tire sizes are meant for trailers, including fifth wheels and other travel trailers, as well as boat and utility trailers.
If there’s no letter before the first number, you have a metric tire most commonly referred to as European size. It’s also measured in millimeters but may have a different load capacity than a P or LT tire. Confused by all the numbers and letters? The pros at Les Schwab can help.
B: TIRE WIDTH
The three-digit number following the letter is the tire’s width (from side to side, looking at the tire head-on) in millimeters. This may also be referred to as the section width.
C: ASPECT RATIO
The forward slash separates the tire width number from the two-digit aspect ratio. The bigger the aspect ratio, the higher/taller the tire’s sidewall, or “profile” as it’s sometimes called.
The aspect ratio is indicated on the tire sidewall as a percentage. It’s the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width.
In this example, the aspect ratio is 65, meaning the sidewall is 65 percent as high as the tire is wide. To get the sidewall height, take the tire width of 215 mm and convert it to inches (8.46). Then multiply this by 65% (.65). This gives you an answer of 5.5, the sidewall height in inches.
D: CONSTRUCTION TYPE
This single letter tells you about the internal construction of the tire. These include radial and bias.
R: Radial Tires
R is for radial tires, the industry standard for most tires today. They have better road grip, lower rolling resistance for better gas mileage or electric range, ride comfort and durability than previous generations of tires. In a radial tire, the plies — layers of strong cords made of a blend of polyester, steel and fabric and coated with rubber — are laid perpendicular to the direction of travel.
D: Diagonal Plies or Bias-Constructed Tires
D is for tires built with diagonal (crisscrossed) plies, called bias-constructed tires. They are also called conventional, x-ply, or cross-ply tires. Some motorcycle and trailer tires still use this internal construction.
E: WHEEL DIAMETER
This two-digit number specifies wheel diameter in inches. It’s the distance between the two bead seat areas (where a tire gets tightly sealed onto the wheel).
F: LOAD INDEX
The two-digit or three-digit number that follows the gap specifies tire load index.
The load index symbol indicates how much weight a tire can support, based on the following standard chart (see below). In our example, the load index is 89. This means the tire has a load capacity of 1,279 pounds, when inflated to the tire’s maximum air pressure rating.
Please note: Some run-flat tires are identified with an F followed by the type of internal construction.
G: SPEED RATING
The last letter is the tire speed rating.
This indicates the top speed it’s safe to travel for a sustained amount of time. A tire with a higher speed rating can handle heat better and provide more control at faster speeds. The maximum operating speed of a vehicle is no more than the lowest speed rating of all tires mounted on the vehicle. (Of course, you should always abide by speed limits for safer driving.) Speed rating is usually, but not always, a single letter (see the chart below).
Tire Size Charts
Below you will find several charts that will help you understand tire sizing numbers, including a load index chart and speed rating chart.
LOAD INDEX
LOAD INDEX LOAD (lbs) LOAD INDEX LOAD (lbs) LOAD INDEX LOAD (lbs) 65 639 94 1477 123 3417 66 661 95 1521 124 3527 67 677 96 1565 125 3638 68 694 97 1609 126 3748 69 716 98 1653 127 3858 70 739 99 1709 128 3968 71 761 100 1764 129 4079 72 783 101 1819 130 4189 73 805 102 1874 131 4299 74 827 103 1929 132 4409 75 853 104 1984 133 4541 76 882 105 2039 134 4674 77 908 106 2094 135 4806 78 937 107 2149 136 4938 79 963 108 2205 137 5071 80 992 109 2271 138 5203 81 1019 110 2337 139 5357 82 1047 111 2403 140 5512 83 1074 112 2469 141 5677 84 1102 113 2535 142 5842 85 1135 114 2601 143 6008 86 1168 115 2679 144 6173 87 1201 116 2756 145 6393 88 1235 117 2833 146 6614 89 1279 118 2910 147 6779 90 1323 119 2998 148 6944 91 1356 120 3086 149 7165 92 1389 121 3197 150 7385 93 1433 122 3307 LOAD INDEX LOAD (lbs) 65 639 66 661 67 677 68 694 69 716 70 739 71 761 72 783 73 805 74 827 75 853 76 882 77 908 78 937 79 963 80 992 81 1019 82 1047 83 1074 84 1102 85 1135 86 1168 87 1201 88 1235 89 1279 90 1323 91 1356 92 1389 93 1433 94 1477 95 1521 96 1565 97 1609 98 1653 99 1709 100 1764 101 1819 102 1874 103 1929 104 1984 105 2039 106 2094 107 2149 108 2205 109 2271 110 2337 111 2403 112 2469 113 2535 114 2601 115 2679 116 2756 117 2833 118 2910 119 2998 120 3086 121 3197 122 3307 123 3417 124 3527 125 3638 126 3748 127 3858 128 3968 129 4079 130 4189 131 4299 132 4409 133 4541 134 4674 135 4806 136 4938 137 5071 138 5203 139 5357 140 5512 141 5677 142 5842 143 6008 144 6173 145 6393 146 6614 147 6779 148 6944 149 7165 150 7385 SPEED RATING
SPEED SYMBOL SPEED (mph) A1 3 A2 6 A3 9 A4 12 A5 16 A6 19 A7 22 A8 25 B 31 C 37 D 40 E 43 F 50 G 56 J 62 K 68 L 75 M 81 N 87 P 93 Q 99 R 106 S 112 T 118 U 124 H 130 V 149 ZR* W 168 Y 186 (Y) Above 186 *For tires having a maximum speed capability above 149 mph, a ZR may appear in the size designation... above 186 mph, a ZR must appear in the size designation, including a Y speed symbol in brackets.
Buying New Wheels or Changing Your Tire Size?
A tire size calculator is a quick way to ensure a new set of tires will fit your car, SUV, sports car, light truck or crossover. But remember, this calculator is only an estimate. It’s important to stay within the sizing tolerances of your vehicle. Tires that are the wrong size could cause some pull in the steering wheel, rub against the suspension or body of your vehicle, reduce clearance on hills, or result in a stiffer or noisier ride.
If you’re considering mounting a different tire size on your vehicle, stop by Les Schwab. We’ll help you make the right choice about the tires and wheels for your vehicle’s suspension, gearing, and bodywork. See how new tires and rims will look on your car or truck. Start shopping now.
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Understanding Les Schwab Credit Options
They say money can’t buy happiness. But Les Schwab credit and flexible financing can help you buy the tires, wheels, and services you need. Here’s a quick look at the history behind our credit plans and how we’ve designed them to work for you.
It All Started With Our Founder
Like his customers, Les Schwab was a downhome kind of guy. Sure, he owned one of the most successful tire companies in the West, but he also understood how normal families paid the bills and put food on the table. That’s why he created our Retail Payment Plan long before credit cards were used for everything. He could help customers get the tires, wheels and other services they needed with affordable payment plans that didn’t break their budget.
Today, that payment plan Les created has evolved into several options designed to help our customers get what they need today with affordable payments weeks and months down the road.
Credit for Hard-working Folks
Today’s credit plans include our Retail Payment Plan, Equal Pay, and 90-Days Same as Cash. Of course, every account is based on creditworthiness and other qualifications*. Plus, they’re designed to keep things affordable for our customers.
Retail Payment Plan is the most popular. Your minimum monthly payment depends on your ending monthly balance. That means your monthly payment goes down as you pay the balance. Let’s say a customer buys a set of tires that adds up to $400. Their minimum monthly payment would be $50. In just four months, when the balance drops below $250, the new monthly payment would be $25. You can see why it’s a favorite.
Ending Monthly Balance Minimum Payment Due $0.01 - $10.00 Balance $10.01 - $50.00 $10.00 $50.01 - $100.00 $15.00 $100.01 - $250.00 $25.00 $250.01 - $500.00 $50.00 $500.01 - $1,500.00 $75.00 $1,500.01 - $2,500.00 $150.00 Over $2,500.00 1/3 of Balance Equal Pay is a nice option for those who like consistent, monthly payments and the option to buy more with their line-of-credit. The monthly payments are calculated at 5% of the highest balance on the account. If a person financed $500, their payment would be $25 until it was paid in full.
90-Days Same as Cash is exactly what it sounds like. As long as the balance is paid in full in 90 days, there are no interest charges.
Helping Local Business Succeed
Similar to our plans for families, Les Schwab is proud to offer credit to businesses. These include the Commercial Payment Plan, Equal Pay, and 30-Day Payment Plan.
Commercial Payment Plans allow businesses to get the tires, wheels and services they need for their fleets and other vehicles and only pay 1/3 of the balance each month. As the balance goes down, the monthly payment drops. It’s a great way to manage overhead and keep a business running strong.
Equal Pay for business is an easy-to-use revolving line of credit with monthly payments calculated at 10% of the highest balance on the account.
30-Day Payment Plans are designed for businesses that prefer to pay by invoice and pay their account balance in full each month.
Finance What You Need
Les Schwab financing options are designed to be simple and straightforward for everyone. The application is easy, and using your line-of-credit is even easier at any Les Schwab location. Qualify, and we’ll get you the credit you need to keep your vehicle and budget heading in the right direction.
Les Schwab Is on Your Side
Learn more about your credit options and apply today, with no annual fees or hidden charges. Or stop by any Les Schwab location and ask about flexible financing.
* The Les Schwab Revolving Credit Plan has a fixed rate of 18.0% APR (0.04931% daily periodic rate) and a minimum finance charge of $0.50 or 18.0% APR, whichever is greater, on average daily balances over $10.00.
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TPMS Light Coming on in Cold Weather? Here’s Why
Every year, the first cold days play havoc with TPMS (tire pressure monitoring systems). If your dashboard TPMS light has ever lit up on a colder-than-normal day, chances are there may be nothing wrong with your tires or wheels. It could be that the air pressure in your tires has been affected by the cold. While you’re always welcome to stop by Les Schwab to have your tire pressure checked anytime you see the TPMS indicator, here’s why your low-pressure tire light comes on and what to do when it happens to you.
How Does Cold Weather Affect My Tire Pressure?
Tire pressure can decrease about 1 PSI (pounds per square inch) for every 10 degrees the temperature drops. It’s not due to air escaping, but rather the air inside the tire condensing. Once it does that, it takes up less space inside the tire. When a tire drops below the recommended fill pressure, the TPMS light comes on. Thankfully, that pressure change is usually temporary. Driving will often heat up the tire and the air inside, increasing the tire’s pressure.
Please Note: Tires routinely lose 1 PSI per month as air escapes around the edge of the rim and through the tread itself. This is completely normal, which is why you should have your tire pressure checked and topped off every month at Les Schwab.
If the TPMS light does not go off after the tires have heated up, bring your tires up to the proper pressure or have your air pressure checked at Les Schwab. If it still does not turn off, you may need to reset the TPMS light.
What Is a TPMS Light?
The tire pressure light (or low-pressure indicator) is just one part of the TPMS system. Some vehicles have two dash indicators.
Low Pressure Indicator
The low-pressure indicator looks like an exclamation point in the middle of an open-top, flat tire. This lights up when the pressure in one or more of your tires falls below the recommended fill pressure.
TPMS System Indicator
The TPMS light, available in some vehicles, may light up indicating an issue with the tire pressure monitoring system, such as a dead battery in one of the tire-pressure sensors. If your vehicle does not have a TPMS light, the low-pressure icon might flash, which could indicate an issue with the system.
No matter what causes your tire pressure light to turn on, stop by any Les Schwab. We’ll add air to your tires and check out your system.
Winter Tire Pressure
Winter temperatures can affect the pressure in your tires by up to 10 PSI. Depending on how cold it is, the TPMS light will likely shut off on its own as the air in your tires warms, expands, and reaches proper inflation levels.
Regardless, get your air checked right away. The TPMS light means your tires are below the proper air pressure. This is a safety risk, especially in the winter as the drop in air pressure can cause compromised handling and increased wear and tear on your tires. Your gas mileage could also be affected.
Can You Drive With a Low Tire Pressure Light?
Driving too long with the TPMS light on (and low air pressure) could affect your safety, including handling and braking. It can also decrease fuel efficiency, damage your tire sidewalls, and cause uneven tread wear. If the TPMS light does not go off after you have added air, get to Les Schwab immediately or change to your spare (if you know which tire is low) and stop by as soon as possible.
Does Air Pressure Impact Tire Life and Fuel Efficiency?
Maintaining proper air pressure can extend tire life by promoting even tread wear. Plus, correct air pressure can improve fuel efficiency by up to 3.3 percent, adding up to more miles per gallon.
One More Reason Your TPMS Light May Turn On
Your TPMS light may flash if your vehicle’s onboard computer can’t detect the sensor, whether it has been damaged or you are using your spare tire. While many vehicle spares do have a sensor, some do not.
How Do I Check My Tire Pressure?
During colder months, we recommend you have your tire pressure checked once a month. Throughout warmer months, you might not need to check your tires as frequently. You can check your tire pressure by following the steps below or by watching our video.
How to Add Air to Your Tires
Learn how to add air to your tires.
1. Find Your Recommended Tire Pressure:
Look in your owner’s manual or for a special sticker on the inside driver’s side door for the standard cold tire inflation pressure. This number is the suggested PSI for your tires, as suggested by the vehicle manufacturer.
Please Note: If you suspect a tire or wheel on your vehicle may be damaged, change to a spare and head to Les Schwab. We will inspect it for free.
2. Check Your Tire Pressure:
Verify the pressure in each tire in the morning or when the tires are cold. This will give you an accurate reading. To check the pressure in each tire, use a tire pressure gauge. These often look like a metallic pencil with a sliding measuring device on one end and a tire valve connection on the other.
3. Park Your Car in a Convenient Location:
Whether you’re at a gas station or home, be sure you can safely reach all four tires with the air hose.
4. Remove the Tire Valve Cap:
Put the cap in your pocket so you don’t lose it.5. Place the Compressor Fitting Firmly on the Tire Valve Stem:
Begin to inflate your tire. You’ll hear air going into the tire. If you hear or feel air coming out, readjust the connection between the air nozzle and the value stem.
6. Add Air for a Few Seconds:
Keep in mind that not all air compressors inflate at the same rate. You’ll want to check your tire pressure often as you inflate. Add air as needed. To remove air, quickly push in the center pin located inside the tire valve.
7. Replace the Valve Cap:
This helps keep more air in your tires for a longer period of time and can keep road debris (dirt and more) from getting into the valve.
Les Schwab Understands Air Pressure
If you need help with the air pressure in your tires, find a Les Schwab store near you. Our knowledgeable technicians will perform a free visual inspection, inflate your tires to the recommended pressure, and get you safely back on the road.
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Want Quiet Tires? Look for These Features
If you put a high priority on a quiet ride, your tire selection is important. Tread patterns, wheel size and traction elements can all affect tire noise.
Tire Features That Cut Road Noise
Tire noise reduction is a science. Designers have figured out how to tune tread patterns to change the harmonics and disrupt air flow. There are sizing and rating considerations, too. Here’s what to look for to get quieter tires:
- Continuous, circumferential ribs with straight grooves in between.
- Varied tread block shapes that create a multiple pitch pattern.
- Smaller blocks.
- A reinforced shoulder, which stabilizes tread blocks.
- Small hash marks inside the grooves that break up air flow.
- Narrower tire sizes.
- Softer rubber composition.
What’s That Noise?
There’s more to quiet ride quality than your tires. The engine, suspension, transmission and wind all generate exterior sound. Road texture also matters. A mountain highway paved with asphalt that offers more winter traction will generally sound louder than the smooth blacktop on a freeway.
As for tires, there are several sources of noise. The air chamber inside the tire is one. Like a drum, the space inside a tire is big and empty. As the tire rolls, the vibration in this space causes a low-frequency hum.
Tread pattern and air flow also come into play. Tires with uniformly shaped tread blocks (the segments of the tire between the grooves) can produce a whining sound, known as harmonic noise. Differently shaped tread blocks create noise at different pitches that tend to cancel each other out, making it less noticeable to the human ear.
Tires with tall tread blocks, like on a traction tire, may squirm a bit which can also increase noise. The sound of air circulating through tire grooves and large voids adds noise.
Heavy-duty tires designed to carry big loads may produce more noise. Traction tires that have more space between the lugs that help with off-road traction are noisier. Tires that are getting to the end of their tread life may be louder since there’s less rubber between the steel belts inside and the road. Unevenly worn tires are likewise noisy: When the tread loses its uniform shape, the sound-muting features built into the tread pattern get distorted. They cannot perform as intended to reduce noise.
Other Factors in a Quiet Ride
Your vehicle type and options play a large role in how loud the ride is. A softer suspension generally means lower noise. Laminated windows can dampen sound. Station wagons are considered louder than sedans, which trap some of the road noise in the trunk. SUVs and trucks will have more wind noise. Accessories like tow mirrors and roof racks will also cause noise. Electric vehicles generate almost no engine noise.
To reduce tire noise, drive at slower speeds and keep tires fully inflated to the recommended air pressure for a quieter ride. Tires will stay quieter longer with simple maintenance that promotes even treadwear: regular rotations, rebalancing and alignments.
If you’re really after that catlike quiet, consider a luxury car that delivers the best insulation from engine, pavement and wind noise.
Tire Types from Quietest to Noisiest
Today’s passenger cars are an estimated 80 percent quieter and trucks 90 percent quieter than those made in the ‘80s. It’s a good thing, given all we have going on inside modern-day vehicles: GPS instructions, stereo and passengers involved in cellphone conversations, videos or games.
But some classes of tires are always going to be noisier than others.
If noise is a top priority, ask your tire dealer about the quietest tires in each category. Noise-reduction technology is always advancing so there may be new options on the market that can improve your driving experience.
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How to Tell If You Need New Tires
Every year in the U.S., tire-related crashes cause 200 fatalities, according to the National Highway Traffic Safety Administration. Thankfully, it’s easy to monitor your tires, and how to tell if you need new tires, with a quick video and some basic information.
5 Warning Signs You Need New Tires
The primary functions of the tread on your tires are to grip the road and to divert water that causes hydroplaning. Tires with plenty of tread can help you maintain control and reduce your chances of getting a flat. With a quick monthly check of your tread and tire pressure, you’ll know if you need to replace your tires.
Tread Wear Bars are Flush with the Tread:
Tread wear bars are small, raised bits of rubber that run between the tread blocks. As these bars become even with the top of the tread, it is likely time for new tires. See more about tread wear bars below.
Cracked Rubber:
Tires will wear down over time, even if you don’t drive much. Sunlight, heat, and chemicals used to melt snow and ice can reduce rubber flexibility, causing tires to crack, lose air, and eventually fail.
Uneven Tire Tread:
There are many factors that may cause uneven wear, which could shorten the life of your tires. Vehicle alignment, tire pressure, lack of rotation, and/or worn steering and suspension components can all contribute to this problem. To prolong the life of your tires and reduce uneven wear, consider getting them rotated at consistent intervals. At Les Schwab, we recommend getting them rotated every 5,000 milles. The pros at Les Schwab will also conduct a free visual inspection of your steering and suspension components. Schedule your free, pre-trip safety check today.
Tire Pressure Issues:
All tires deflate slowly over time, usually about 1 PSI (pounds per square inch) per month. Check yours monthly to keep them properly inflated. If your tires continually lose air or seem to completely deflate without warning, you may need to stop by Les Schwab for tire repair or replacement if necessary. Does the TPMS (Tire Pressure Monitoring System) light often appear on your dash? This could mean your tires have developed a slow, continuous leak.
Sidewall Bulges:
If you hit a curb, pothole or other obstacle, your tires can develop sidewall bulges due to a break of the inner liner. These bulges can rupture causing a potentially unsafe situation. If you spot a bulge on your tires, get to your nearby Les Schwab and have your tires inspected.
Other Possible Issues:
If you experience new vibrations or thumping while driving, it could be a sign that one of your tire/wheel assemblies is out of balance. It could also indicate a suspension issue. Stop by your local Les Schwab and our professionals will check your tires, steering, and suspension.
Easy Ways to Check Your Tread
Use the Tread Wear Bars
All tires sold in the United States today have what are called tread wear bars. The tread wear bars on your tires are there to help you see how much tread you still have. These wear bars are small, raised bars of rubber in the grooves of your tire. Look at the tread pattern and you’ll see these bars running between the tread blocks.
How do I use them to diagnose worn tires?
Look at the tread pattern and you’ll see these bars running between the tread blocks. As your tires wear, these bars will become increasingly flush with the tire’s tread. It’s important to replace your tires before this happens.
Depending on where and how you drive, and the conditions you face on the road, you might consider getting new tires before they reach that point. City driving in mild conditions may allow you to wait until the tread is closer to the tread wear bar before replacing your tires. More adverse conditions, such as rain, snow, and unpaved roads, may require you to replace your tires earlier.
Do the Penny Test
An easy way to check the tread on your tires is to do the penny test. Take a penny and place Lincoln’s head in one of the grooves of the tire tread. If you can see all of Lincoln’s head, it’s time to replace the tire.
If the penny goes in enough that the tire tread is at least as deep as Lincoln’s forehead, your tires are generally considered safe and do not need replacing. Check all four of your tires when conducting the penny test.
Ready to Find the Perfect Tires?
You’ll find your next set of tires at Les Schwab. You also find our world-class customer service at a tire shop near you that cares about your safety on the road.
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What are Directional Tires?
Directional tires have a tread pattern designed to rotate in only one direction. When you look at such tires head on, the lateral voids and channels on the tread all point forward and down. The channels on both sides of the tread will run like two waterfalls joining from opposite sides, like this: ϒ
Directional tires (also called unidirectional) are better for performance cars — and traveling at high speeds — than tires with symmetrical or asymmetrical tread patterns. The tires channel water away efficiently for excellent hydroplaning resistance and deliver sporty performance on dry surfaces.
But directional tires cannot be easily rotated to as many positions on the vehicle. In order to rotate directionals to opposite sides of a vehicle — not just between front and back on the same side — the tires have to be dismounted from the wheels and remounted before being installed.
For this reason, most drivers end up just switching directional tires from front to back on the same side when they get a rotation. This means the tires will wear less evenly and more quickly, and that’s why you may get less mileage.
How to Identify Directional Tires
Most directional tires have a solid center rib, which adds rigidity for high-speed stability. Also, the lateral channels on the tread pattern all point down in a V-shape. Such designs are used on summer or winter tires.
Here’s a comparison between directional, symmetrical and asymmetrical treads.
The most common tread pattern for passenger cars is symmetric. The left and right tread blocks mirror each other, and the grooves and voids point in multiple directions. Both summer and winter tires use this type of pattern.
Asymmetric treads combine the above two patterns to offer good grip on dry, wet or snowy roads, making the tread type a better choice for all-season use. The inner side of asymmetric tires often features lateral voids like those found in directionals, while the outer side uses larger tread blocks.
Installing and Rotating
On directional tires, there’s an arrow on the sidewall of the tires — when correctly mounted, the arrow points toward the front of the vehicle. If directional tires get mounted backward, you won’t get the hydroplaning resistance and other performance driving benefits the tread is designed for.
Front and rear tires often wear at different rates. It is recommended to rotate standard tires between front and back and crossways to maximize lifetime mileage.
When you have directional tires, you can only easily swap fronts for rears on the same side of the car. If you want to cross tires to opposite sides, you’ll have to go through the time and expense of having the tires taken off the wheels, flipped, remounted on the wheels and swapped.
Pros and Cons
Directional tires provide superior handling in wet conditions or dry. The V-shaped tread allows water to be pushed outward as the tire rotates, evacuating water better than a symmetric tire.
The tires handle better at high speeds. Most race and sports cars run with directional tires.
Directionals can also provide better fuel efficiency since they have less rolling resistance. (But if you’re a spirited driver, faster accelerations and speeds may offset these gains.)
The main downside is cost. The rubber compounds used in these high-performance tires mean a premium price point compared to standard passenger car tires.
Also, directionals typically have shorter tread life. It’s not because the tread is less durable, but rather it’s because tire rotations involve extra labor and cost. Many drivers opt to swap front and rear tires on the same side to avoid the hassle.
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How to Change a Tire
Changing a flat tire isn’t rocket science, but there are some important things to know to make sure you get that spare on properly in order to make it safely to the tire shop. Follow along as we show you, step by step, how to do it in this Les Schwab Quick Tips video. We cover:
- What to do before you get tools out.
- How to find the proper jacking point on your vehicle.
- How much to loosen lug nuts before lifting the car.
- How to make sure the spare goes on correctly.
- The proper order for tightening lug nuts.
How to Change a Tire
- Safety first. Keep clear of passing traffic, make sure your car is in park, set your parking brake and turn on your hazard lights. If there’s any doubt about whether you can stay out of harm’s way, it’s better to call roadside assistance.
- Check your owner’s manual. It should have tire-changing instructions, including the location of the jacking point.
- Get your spare and tools out. They are usually stored in a compartment inside the trunk. There should also be instructions on how to use the jack.
- Be sure the jack is positioned properly. Make sure it’s pointed the right way and placed in the proper jacking point on the vehicle.
- Loosen lug nuts about a one-quarter turn before jacking.
- Jack the vehicle up enough so the tire is not touching the ground.
- Remove the lug nuts, setting them somewhere where they won’t roll away.
- Pull the flat tire off, placing it underneath your vehicle behind the jack or, if it’s too wide to fit there, in another spot under the auto if possible. This is important in case the vehicle falls off the jack.
- Put the spare on, making sure the valve stem is facing you.
- Screw the lugs nuts back on by hand, finger tight.
- Lower the jack down until the tire contacts the road and is bearing some weight, but not all the way.
- Tighten the lug nuts in a star pattern, not a circle pattern, so the wheel gets seated snugly. This assures the wheel isn’t askew, and doesn’t then pop into the proper place while you’re going down the road, loosening some of the bolts and causing wobbling or worse — like the nuts breaking and the wheel coming off.
