Tire Monitoring System: Testing and Inspection

TIRE PRESSURE MONITORING SYSTEM

When diagnosing a tire pressure issue, check the red TPM telltale lamp in the instrument cluster during ignition key ON. If after 10 seconds, the red telltale is illuminating continuously, adjust the air pressure as necessary to that listed on the Tire Inflation Pressure Label (Placard Pressure) provided with the vehicle. After adjusting air pressure in a tire, allow approximately two minutes for the red telltale to go out. Inspect all the tires for leaks. A water "dunk tank" or other water test may be used as long as any water at the valve core is removed once the procedure is complete. The water can be easily expelled from the core area by pushing in on the core for several seconds, allowing escaping air to drive out any moisture. Re-inflate the tire if necessary. Always make sure the original valve stem cap is securely installed to keep moisture out of the sensor. If the red telltale is still ON continuously, refer to the appropriate diagnostic information.

If the red TPM telltale lamp is flashing on/off for 60 seconds during key ON, a system fault was detected. Refer to the appropriate diagnostic information.