How do I fix my TPMS?
Press the TPMS reset button and hold it until the light blinks three times, then release it. Start the car and let it run for 20 minutes to reset the sensor. You’ll usually find the tire pressure monitor reset button beneath the steering wheel. Check your user’s manual if you’re having trouble locating it.
Why does my TPMS light say low tire pressure?
So check your tires carefully. If your vehicle has a TPMS, it’s probably monitoring the pressure in your spare tire. Therefore, if you get a low tire pressure warning light, and if you’ve checked all four tires that are touching the ground, than you might need to put some air in the spare. Recommended tire pressure can be very confusing.
What to do if your TPMS warning light is still on?
If you’ve checked all your tires (including the spare) and the tire warning light is still illuminated, reset your tire pressure monitoring systems. Some models require the TPMS to be reset every time pressure is added. Instructions for how to reset your tire warning light vary from model to model.
When to use a TPMS tool before servicing a tire?
However, before servicing the tires/wheels, it is always recommended to use a TPMS tool to trigger each of the vehicle’s sensors to make sure they are working properly. A stationary relearn (sometimes called manual) procedure allows new TPMS sensor IDs to be transferred to the vehicle’s ECU without driving a vehicle.
What does the tire pressure monitoring system do?
The tire pressure monitoring system’s (TPMS) primary function is to make the driver aware of the state of tire pressure within the tires. Under normal system operations, the TPMS system will alert the driver when one or more affected tires PSI reading falls below 25% of the vehicle’s placard.
So check your tires carefully. If your vehicle has a TPMS, it’s probably monitoring the pressure in your spare tire. Therefore, if you get a low tire pressure warning light, and if you’ve checked all four tires that are touching the ground, than you might need to put some air in the spare. Recommended tire pressure can be very confusing.
When does the TPMS indicator light come on?
The TPMS light should only be illuminated in the event that the air pressure within the tire falls below the recommended level, normally this is 25%. This indicator light could have a variety of meanings. For example, there may be a hole in the tire causing a loss of pressure, or a change in environment.
How does the TPMS system work on a car?
The sensors that monitor the wheel speed measure how fast the tires turn. If the air pressure is low in one tire, this tire will rotate at a different speed. If the sensors indicate that a tire is rotating faster than expected, the systems within the vehicle’s computer will alert the driver.
How does the tire pressure monitor system work?
The simpler TPMS alerts just give you a warning light when the pressure drops 25% below the set level. On these cars, typically lower cost models, you have to manually check all 4 tires to see which one is low. That may seem like a hassle, but it makes other maintenance tasks easier, like tire rotations.