How do I know if my vehicle is equipped with TPMS?
The easiest ways to determine if your vehicle is equipped with TPMS include checking the dashboard indicator lights at startup or referencing the owner’s manual. After turning your key to the “On” or “Aux” position you will notice the TPMS symbol on the dashboard.
Passenger vehicles and light trucks under 10,000 lbs. manufactured after September 1, 2007 are required by the TREAD Act to have TPMS. Auto manufacturers began phasing TPMS into vehicles prior to 2007.
What does it mean when my warning light turns on?
If you are driving and notice the TPMS warning symbol, one or more of your tires is most likely 10-25% underinflated. If this occurs, you should immediately find a safe place to pull over and examine your tires to ensure you are not experiencing a blowout or loss of tread. If there is no immediate concern, fill your tires to the proper pressure as soon as possible and the warning light will turn off.
If the TPMS warning light comes on and flashes on for one second and off for three seconds, this indicates a malfunction with the vehicle’s TPMS system.
How do I know the proper tire pressure for my vehicle?
The recommended tire pressure can be found on your vehicle’s placard, typically located on the inside of the driver’s side door or on the door itself. The proper tire pressure is also located within the driver’s manual. Note that the pressure indicated on the side of the tire is the maximum pressure for the tire itself, not the recommended level for your vehicle.
If my TPMS light is on and I fill my tires with air, will it turn off by itself?
Yes, the TPMS sensors in your tires will recognize the increase in pressure and the warning light will turn off once the pressure is in accordance with the placard pressure. Depending on the vehicle, some TPMS sensors will require driving a short distance before the light turns off. Remember to check all four tires for proper pressure.
Why does my tire pressure change?
Tire pressure (psi) is influenced by a variety of factors including temperature and damage to the tire itself. Tires will naturally lose 1-2 psi per month due to regular wear and tear. Additionally, for every 10°F drop in ambient temperature, tire pressure drops around 1 psi.
How does tire pressure affect driving safety?
Properly inflated tires improve vehicle handling, steering and braking ability. These inflated tires grip the road better in all conditions (including rain and snow) and shorten stopping distances. An under inflated tire results in a higher rolling temperature, potentially leading to tread separation or a blowout.
Correctly inflated tires decrease the likelihood of skidding and loss of control crashes, hydroplaning and flat tire or blowout crashes.
What types of vehicles does the TREAD Act cover?
The TREAD Act specifies passenger vehicles and light trucks that weigh less than 10,000 lbs to be TPMS equipped. The regulation does not cover motorcycle TPMS or vehicles with dual wheels on an axle, although many offer TPMS as a premium option.
Why does my tire pressure change?
Tire pressure (psi) is influenced by a variety of factors including temperature and damage to the tire itself. Tires will naturally lose 1-2 psi per month due to regular wear and tear. Additionally, for every 10°F drop in ambient temperature, tire pressure drops around 1 psi.