Guide
How to check tire pressure
Check tire pressure when tires are cold and use the vehicle manufacturer's recommended pressure rather than the maximum pressure molded into the tire sidewall.
At a glance
- Pressure target
- Use the vehicle manufacturer's recommended cold inflation pressure
- Timing
- Pressure is best checked when tires are cold
Overview
Tire pressure affects handling, braking, tire wear, heat generation, and fuel use. The correct target for normal operation comes from the vehicle manufacturer, commonly shown on the driver's door-jamb placard or in the owner's manual. The maximum pressure printed on the tire sidewall describes a tire limit and is not automatically the recommended inflation pressure for the vehicle.
Use the placard, not the sidewall maximum
Find the tire-information placard or owner's manual specification for the vehicle and tire position. Measure with a reliable gauge before significant driving when possible, then add or release air to reach the recommended cold pressure. Reinstall valve caps and recheck any tire that repeatedly loses pressure.
Pressure changes with conditions
Temperature changes can move tire pressure even when there is no puncture, so seasonal checks matter. A tire-pressure monitoring warning should prompt a manual check of the tires rather than assuming the sensor itself is the problem. Visible damage, rapid pressure loss, vibration, or unusual wear warrants further inspection.
Sources and review
MOOR's explanatory text is supported by the following source links.
- Tires — National Highway Traffic Safety Administration
- Tire Safety — National Highway Traffic Safety Administration