Removal Procedure

Raise the vehicle on a suitable support. Refer to Lifting and Jacking the Vehicle
Remove the tire and wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation
Dismount the tire from the rim.
Remove the TORX screw (1) from the tire pressure sensor (2) and pull it straight off the tire pressure valve stem (3). DISCARD the TORX screw and valve stem.

Fig 1: View Of Tire Pressure Indicator Sensor
Courtesy of GENERAL MOTORS COMPANY

CAUTION: Do not scratch or damage the clear coating on aluminum wheels with the tire changing equipment. Scratching the clear coating could cause the aluminum wheel to corrode and the clear coating to peel from the wheel.

NOTE: When servicing the tire pressure sensor always use a new tire pressure monitor (TPM) and a new TORX screw during installation.
Remove the tire pressure valve stem by pulling it through the rim.