GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.

    Caution: Do not strike or jolt the inflatable restraint front end sensor. Before applying power to the front end sensor make sure that it is securely fastened. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.

  1. Disable the SIR system. Refer to SIR Disabling and Enabling .
  2. Remove the grille. Refer to Fascia Grille Replacement .
  3. Remove the retainers that hold the upper front bumper fascia to the radiator support.
  4. Pull the fascia from the radiator support to gain access to the sensor bolts.

  5. Object Number: 809058  Size: SH
  6. Remove the orange connector position assurance (CPA) (2) from the yellow sensor harness connector (3).
  7. Disconnect the harness connector from the sensor (1).

  8. Object Number: 809051  Size: SH
  9. Remove the sensor bolts (1).
  10. Remove the sensor (2) from the upper radiator core support (3).

Installation Procedure


    Object Number: 809058  Size: SH
  1. Remove any dirt, grease, and other contaminants from the mounting surface.
  2. Connect the sensor harness connector (3) to the sensor (1).
  3. Install the orange CPA (2) into the yellow sensor harness connector (3).

  4. Object Number: 809051  Size: SH
  5. Position the sensor on the upper radiator core support (3).
  6. Point the arrow on the sensor toward the front of the vehicle.
  7. Notice: Refer to Fastener Notice in the Preface section.

  8. Install the sensor bolts (1).
  9. Tighten
    Tighten the bolts to 9 N·m (80 lb in).

  10. Secure the fascia to the radiator support.
  11. Install the retainers that hold the upper front bumper fascia to the radiator support.
  12. Install the grille. Refer to Fascia Grille Replacement .
  13. Enable the SIR system. Refer to SIR Disabling and Enabling .