Skip the auto shop - Our mechanics make house calls

Q: How do you solve the problem of TPMS being permanently on

asked by on

TPMS Permanently on

The tire pressure monitoring system uses pressure sensors in each tire and will turn on the light when the pressures are incorrect or the module is not getting a signal from one or more sensors. The sensors in the wheels have an integral battery in them that has a limited life and when the battery goes dead then the sensor fails to send signals and module turns on the TPMS light. You have to have the system checked to see if one or more sensors have failed to send signals and replace the bad sensors and have them programmed to the module.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Tire Pressure Light

Hello. The first thing I would do is make sure that the tire in question is inflated to proper pressure. If the pressure is low, even by a few pounds, it may set off the tire pressure light. If the...

Q: My car's tire pressure monitoring system lights come on when the tire pressure is normal

Your car is equipped with wheel speed sensors on each of the four wheels which monitor wheel speed while relaying this information to the ABS and traction control system (ESC) which are controlled by the car's ECU. When the ECU...

Q: I have a 08 Chevrolet Impala and the service tire monitoring system came on. What should I do?

First, be sure that the alert you are seeing is not due to actual low tire pressure. Using a tire pressure gauge, if you do find low pressure in one or more tires, you should consider the possibility of a...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...