When the TPMS tire pressure monitoring system light illuminates despite the tires appearing fine, highlighting steps to address the issue.
Sensor Failure
TPMS sensor malfunction can occur due to wear, damage, rust, or improper handling. To fix this issue, have the sensor checked by a mechanic, which typically costs $50-$100 per sensor, with additional labor costs of $20-$50 per tire. Check your vehicle’s warranty or ask for a detailed quote for further assistance.
Low Tire Pressure
Low tire pressure in a spare tire can trigger the TPMS light, even if the main tires are fine. Inspecting the pressure and inflating the spare tire to the recommended level can help prevent future issues. If the TPMS light remains, a mechanic should check the system to rule out other problems.
Faulty Module
The TPMS module, responsible for reading sensor signals and controlling warning lights, may be faulty due to electrical issues, software problems, or wear. If faulty, it may misread signals, causing false warnings. Reprogramming or replacement can cost $200-$600, including labor, for this issue.
Electrical Interference
Electrical interference or calibration issues can cause false alerts when the TPMS light turns on. This can occur after tire changes, wheel changes, or maintenance. To fix this, check for nearby devices causing interference and move them away. If the issue persists, have a mechanic re-calibrate or reset the PMS system.
Summary
False alerts can occur due to electrical interference or calibration issues, requiring repairs after tire changes, wheel changes, or maintenance.
