Skip the auto shop - Our mechanics make house calls

Q: TPMS light comes on frequently, but false alarms

asked by on

The Tire Pressure Monitoring System light has been frequently turning on while driving. Several times I have been to the service department and every time I am told that they can not find any problem. I learned that there is a known defect of the TPMS light going on when something is being charged. Since this would mean it’s not the service departments problem, I only charge when necessary. However the TPMS light goes on even when nothing is in the charger. According to the manual, when it goes on I am supposed to go immediately to the service department. Since mine is going on so frequently, it is impossible to take it in every time and I work full time.

Everytime it goes on, my family and I feel so stressed because we hope it’s a false alarm like the other times. And each time, sure enough it has been false alarms, but this is causing too much stress! There is no pattern to this - no rhyme or reason as to why or when it will light up. What worries me is that I’ve gotten to the point where I assume it is a false alarm and what if one time it happens and it is a Real Warning! I have no confidence in my car, constantly stressed, waiting for something to go wrong. In your expertise, what is causing this and what will fix it?

A: The TPMS light may be illuminating due to a...

The TPMS light may be illuminating due to a faulted sensor giving a false reading, and unfortunately, these are difficult to track down without replacing all of the sensors at the same time (which can be pricey). The vehicle has a tire pressure monitoring system, but it is still a good idea to keep a tire pressure gauge handy. It doesn't take much time to take a walk around the car and check the tires before leaving your home. As long as you know that the tire pressure is where it needs to be, you have less to worry about for this particular light. If you would like a separate technician to scope out this problem for you, a certified technician from YourMechanic can inspect the TPMS Light at your home or office so that you do not need to spend time bringing the car into the service department.

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・Save up to 30%

Get a quote

What others are asking

Q: Start then stall - 2011 Chevrolet Malibu

Hey there. This may be related o a few different things, but is likely related to a fuel delivery issue. Since the car will restart again each time, we know there is not an issue with spark. This may be...

Q: Uneven tire wear & airbag light off when passenger sits in it

If you feel that the wear is excessive on your vehicle, then I would suggest taking the vehicle to the dealer or have a mechanic look at it for you. It is not uncommon for the front and rear of...

Q: what do i need to do when my tire pressure, electric steering and vehicle stability lights come on

Due to the impact of another vehicle hitting your car, there may be several things wrong that may or may not be visible such as the wheel speed sensors. Your car is equipped with wheel speed sensors at each of...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...