Symptoms
- Light was off before, on right after new tires installed
- Light doesn't clear after driving
- Display shows a specific tire with wrong pressure
- Message says a sensor is missing
Likely causes
- CommonTPMS relearn procedure wasn't doneSome vehicles require a manual relearn step after tire service, which shops sometimes skip.
- CommonSensor damaged during tire mountingTPMS sensors are fragile and can crack if handled roughly during the swap.
- PossibleSensor battery died around the same timeCoincidental timing happens since sensors often reach end of life during a tire change.
What to do
- Verify actual tire pressures are correct with your own gauge.
- Check your owner's manual for a TPMS relearn procedure; some cars need a drive cycle, others a button sequence.
- Perform the relearn procedure if your car has one.
- If the light still won't clear, call the shop that installed the tires; damaged sensors during install are usually covered.
- Ask the shop to scan for which specific sensor is reporting an issue.
Tools and parts
- Tire pressure gauge
- Owner's manual
Replacement TPMS sensorSearch: “TPMS sensor for [your car make and model]”
When to call a pro
If the shop that mounted the tires damaged a sensor, ask them to replace it at no charge before paying elsewhere.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.