Symptom Related Diagnostic Procedures

LO TIRE LCD MESSAGE FLASHING

For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams






1. AIR PRESSURE LEAK
1. Turn the ignition off.

NOTE: If there are any Diagnostic Trouble Codes (DTCs) set, the DTC must be repaired for the result of this test to be valid.

2. Inspect tire(s) for any signs of leak(s). Check for any foreign objects in the tread or sidewall, or curb damage, or wheel damage, leaking valve stem, rim leak(s), etc.

Were any air leaks found in the tire?

Yes

- Repair the cause of the air pressure leak.
- Perform the TPM VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test

No

- Go To 2

2. LOW TIRE PRESSURE/CRITICAL TIRE PRESSURE
1. Turn the ignition off.
2. With an accurate air pressure gauge, manually check the air pressure of all four tires for proper air inflation.

Are the tire(s) at the recommended air inflation pressure?

Yes

- Go To 3

No

- Adjust the tire(s) air pressure to the recommended pressure.
- Perform the TPM VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test

3. TIRE PRESSURE SENSOR/TRANSMITTER PLUGGED
1. Turn the ignition on.
2. Drive the vehicle above 33 Km/h (20 Mph) for at least two minutes with the scan tool disconnected.
3. With the scan tool, read the most recent transmission from each tire. Look for a tire pressure reading that is below the tire pressure threshold(s). (23 psi for low and 18 psi for critical)

Does the scan tool indicate any tire pressure below the threshold?

Yes

- Replace the Tire Pressure Sensor/Transmitter. Remove leak sealant which can plug the air pressure sense hole.
- Perform the TPM VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test

No

- Replace and program the Tire Pressure Monitor Module.
- Perform the TPM VERIFICATION TEST. Tire Pressure Monitor (TPM) Verification Test