How do you reset tire pressure light on 2005 mercury mountaineer?

Answer 1

1. Make sure all tires are inflated to the vehicle's recommended inflation pressures (found in the owner's manual on the door placard).

2. Turn the ignition switch to OFF then press and release the brake pedal.

3. Turn the ignition switch from OFF to RUN (engine OFF) 3 times, ending in the RUN position. Do this within 10 seconds.

4. Press and release the brake pedal.

5. Turn the ignition switch back to OFF.

6. Turn the ignition switch from OFF to RUN (engine OFF) 3 times, ending in the RUN position. Do this within 10 seconds.

7. The horn should sound letting you know the vehicle has entered into TPMS relearn mode

8. Place the VT10's antenna on the sidewall of the driver's side front tire 180 degrees from the valve stem.

9. Hold the right button of the VT10 triggering tool for 5-10 seconds. The vehicle's horn will sound letting you know the sensor has been learned.

10. Once the horn sounds, move on to the passenger side front tire and repeat the process. Each tire should only take 30 seconds.

11. After the passenger side front tire has been learned, continue on to the passenger side rear tire and finishing with the driver's side rear tire.

12. You may now turn the ignition to OFF. If the horn does not sound, the sensors were learned successfully. If the horn sounds twice, then the process must be repeated because there was a malfunction.