Common TPMS Problems and When to Get Service
A TPMS warning light can be confusing, especially when your tires look properly inflated. The warning does not always mean you have a flat tire. It can also indicate a sensor issue, low pressure caused by temperature changes, or a communication problem within the monitoring system.
What are the most common TPMS problems?
The most common TPMS problems include low tire pressure, damaged sensors, dead sensor batteries, incorrect sensor readings, and communication faults. TPMS Service can help identify whether the warning is caused by an actual tire pressure problem or a fault within the monitoring system.
Understanding the warning can help you decide what to do next.
Why does my TPMS warning light stay on?
A continuously illuminated TPMS light generally means the system has detected low tire pressure in one or more tires.
Start by checking all four tires, and do not forget the spare if your vehicle's system monitors it.
If one tire is noticeably lower than the others, inspect it for signs of a puncture or slow leak. Simply adding air may not solve the underlying problem if the tire continues losing pressure.
Other possible causes include:
- A leaking valve stem
- A punctured tire
- Damaged TPMS sensor
- Incorrect tire pressure
- Temperature-related pressure loss
If the correct pressure has been restored but the warning remains, the system may need further inspection.
What does a flashing TPMS light mean?
A flashing TPMS light can indicate a system malfunction rather than low tire pressure.
Depending on the vehicle, the light may flash for a short period after starting the engine and then remain illuminated. This can indicate that one or more sensors are not communicating correctly with the vehicle.
Potential causes include:
- A failed sensor
- A depleted sensor battery
- Sensor damage
- Incorrect sensor programming
- Communication issues
- A replacement wheel or sensor that has not been properly registered
Because the exact procedure varies by vehicle, professional diagnosis can help identify the problem instead of replacing parts unnecessarily.
Can tire replacement damage a TPMS sensor?
Yes. TPMS sensors are often mounted inside the wheel near the valve stem. During tire removal and installation, improper equipment use can damage a sensor.
This is one reason TPMS should be considered whenever tires are replaced, repaired, or rotated.
A technician can inspect the sensor and valve components and determine whether they are still functioning correctly.
What should you do after adding air?
After correcting tire pressure, drive the vehicle according to the manufacturer's recommendations and check whether the warning clears.
Some vehicles automatically relearn sensor readings. Others require a manual reset or relearn procedure.
If the warning stays on despite correct tire pressure, the problem may involve the TPMS rather than the tires themselves.
When should a TPMS problem be professionally diagnosed?
Professional service is a good idea when:
- The warning light keeps returning
- Tire pressure is correct but the light remains on
- The warning flashes after starting the vehicle
- A sensor was recently replaced
- New wheels were installed
- A tire repeatedly loses air
- The displayed pressure does not match actual pressure
A proper diagnosis can prevent unnecessary sensor replacement and help determine whether the issue is related to the tire, valve, sensor, or vehicle communication system.
FAQ
Can I drive with the TPMS light on?
You should check your tire pressure as soon as possible. If pressure is low, correct it before continuing normal driving. If pressure is correct but the warning remains, have the system inspected.
How long do TPMS sensors last?
Sensor life varies by vehicle and usage. Many sensors use internal batteries that eventually wear out. A failed battery generally means the sensor assembly needs replacement.