Tire Pressure Monitoring System (TPMS) Warning Light Always On
The TPMS warning light is constantly illuminated, indicating that one or more tires have low pressure or the system has a fault. This can affect tire wear, fuel economy, and safety.
Diagnosis Details
Possible Causes
One or more tires are significantly under-inflated (below the recommended pressure).
TPMS sensor battery failure or sensor malfunction due to age or damage.
Faulty TPMS module or wiring issue, especially after tire rotation or repair.
Related OBD-II Codes
Not satisfied with this diagnosis?
Try Another DiagnosisWhat To Do Next
What You Should Do
Check and adjust tire pressures to the recommended level (usually found on driver's door jamb).
If light remains on, have the TPMS system scanned with a diagnostic tool to identify faulty sensors or module.
Replace sensor if needed.
Estimated Repair Cost
$0 (if just inflating tires) to $300+ for sensor replacement (parts and labor)
Share this diagnosis
Help others with similar symptoms
Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.