2007 Chevrolet Trailblazer Q&A
2007 Chevrolet Trailblazer Question: How do I reset the service tire monitor light?
check the tire pressures and make sure they all match according to the drivers door placard. if the light persists, there may be a malfunction with the sensor itself. Roy - mastertech6371
This might be a problem with the TPMS sensor itself. Take your vehicle to a reputable tire store and have them try to reset the system for you. If the TPMS system will not reset per the reset procedure, a sensor may have failed and need replaced. - Tyreguy