GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 551891  Size: SH
  3. Disconnect the electrical connector from the outside air temperature sensor that is located on the front, right radiator air baffle.
  4. Pull on the retainer to remove the outside air temperature sensor.

Installation Procedure


    Object Number: 551891  Size: SH
  1. Position the outside air temperature sensor to the radiator air baffle.
  2. Press in the retainer to install outside air temperature sensor.
  3. Connect the electrical connector to the outside air temperature sensor.
  4. Lower the vehicle.
  5. Drive the vehicle at a speed of 32 km/h (20 mph) for approximately one and a half minutes or at a speed of 72 km/h (45 mph) for approximately one minute in order to obtain the outside air update.