GM Service Manual Online
For 1990-2009 cars only

Important: After resetting, the tire pressure monitoring (TPM) system requires 60 minutes or more of driving at a speed of 30 km/h (19 mph) or above to complete the calibration process to have full capability for detecting a tire pressure condition. For further information, refer to Tire Pressure Monitor Description and Operation . If the TPM system does not reset, refer to Symptoms - Tire Pressure Monitoring .

  1. Adjust all tire pressures to the recommended kPa/psi. Refer to Tire Inflation Pressure Specifications or Tire Placard .
  2. Turn ON the ignition, with the engine OFF.
  3. Press and hold the tire pressure warning reset switch for 3 seconds until the tire pressure warning indicator blinks 3 times. Ensure the tire pressure warning indicator goes out.
  4. If the tire pressure warning indicator does not blink, repeat the procedure starting at step 2.
  5. Drive the vehicle for 60 minutes or more at a speed of 30 km/h (19 mph).
  6. Verify the system has initialized. Turn ON the ignition, with the engine OFF and observe the tire pressure warning indicator.
  7. • System Initialized: light on for 3 seconds
    • System not initialized: light on for 4 seconds