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: air conditioner pump making noise and no cold air. no power coming to pump in 2011 nissan rogue

Hey there, thank you for asking about your 2011 Nissan Rogue. When the compressor pump starts to make noise, combined with not blowing cool air, there are many possible problems. It is quite possible that the compressor itself has frozen....

Q: Tires spun and car won't go forward

Hi, thanks for writing in. Usually, when you hear a clunking sound after the wheels were spinning it means that either the front drive axle was stripped or there is damaged inside the front transfer case. If the wheels spin...

Q: What should I know about changing a tire with the TPMS system?

Flat tires happen. That’s why your Accord has a spare tire. You also have a tire pressure monitoring system (TPMS) that monitors the air pressure in each tire. If it sees a drop in pressure, it turns on the Low...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.