On average, tires lose around one pound per square inch (psi) of pressure a month and lose an additional 1 psi for every 10-degree drop in outside temperature. As an important safety feature, your vehicle’s tire pressure monitoring system (TPMS) will illuminate a warning light if one of your tires is under-inflated.
Maintaining Proper Tire Pressure
Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflated tires can lead to skidding and/or loss of control of your vehicle, hydroplaning on a wet surface and blowouts caused by severe overheating. Failure to properly maintain tire pressure can increase the risk of tire failure, loss of control, vehicle rollover and personal injury. Properly inflated tires are not only important but can also increase fuel efficiency and tire tread life.
Common Causes of Tire Pressure Change
- Changes in weather
- Punctures, cuts, snags, or separation in tire tread, shoulder, or sidewall
- Over time tires naturally deflate
Manual Tire Maintenance
Every month, it’s important to check the tire pressure in all four of your tires, as well as the spare tire, if your vehicle has one. Since tire pressure varies with temperature, be sure to check your tires after your vehicle has been parked for at least three hours, when the tires are cold.
The advantages of keeping your tires properly inflated.
When your vehicle’s tires are properly inflated, it can help you improve your fuel economy by 2 percent*. Proper inflation also optimizes your vehicles performance and handling, which will help you feel safer behind the wheel.
A major cause of tire damage is improper inflation. Over time, your tires lose pressure, which can cause irregular tread wear and poor gas mileage. On average, tires lose air at the rate of one pound per month. In colder temperatures, a tire will lose one pound of pressure for every 10-degree drop. A simple solution: check your tire pressure at least once a month for longer performance. Your vehicle may also be equipped with a tire pressure monitoring system. Displayed on your dashboard, it alerts you to sudden changes in tire pressure or low pressure in one or more of your tires.