GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn OFF the ignition.
  2. To access the yaw rate sensor/lateral and longitudinal accelerometer move the passenger seat rearward.
  3. Carefully lift the carpet by the seam.

  4. Object Number: 899225  Size: SH
  5. Remove the 2 mounting nuts (2) that secure the accelerometer.

  6. Object Number: 899221  Size: SH
  7. Disconnect the electrical connector (2) from the accelerometer.
  8. Remove the accelerometer (1).

Installation Procedure


    Object Number: 899225  Size: SH
  1. Install the yaw rate sensor/lateral and longitudinal accelerometer (1).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the 2 nuts (2) that secure the accelerometer.
  4. Tighten
    Tighten the mounting nuts to 9 N·m (80 lb in).


    Object Number: 899221  Size: SH
  5. Connect the electrical connector (2) to the accelerometer (1).
  6. Perform the ABS diagnostic system check. Refer to Diagnostic System Check - Vehicle.