California DMV Permit Test (Class C)Vehicle Operation and MaintenanceMedium
How often should you typically check your vehicle's tire pressure, including the spare tire?
- AOnly when the low tire pressure warning light illuminates.
- BAt least once a month and before long trips.
- COnce a year or before a long road trip.
- DEvery time you refuel your vehicle.
Show answer & explanationAnswer & explanation
Correct answer: B. At least once a month and before long trips.
Tire pressure naturally fluctuates with temperature and can slowly leak over time. Checking it monthly and before long trips ensures optimal safety, fuel efficiency, and tire longevity. The TPMS light is a warning, not a substitute for regular checks.
Why the other options are wrong
- A. Relying solely on the TPMS light means pressure is already significantly low, which is unsafe and causes wear.
- C. Annually is insufficient; tires lose pressure more frequently than that.
- D. While more frequent is not harmful, monthly is the minimum recommended, and checking every refueling might be excessive for some drivers.
Tire Pressure Check Frequency
The recommended interval for regularly verifying the inflation pressure of all vehicle tires, including the spare.
- At least once a month.
- Before every long road trip.
- Check when tires are 'cold' for accuracy.
Memory trick: Regular Checks Keep Cars Kicking, Kindling No Crashes.