GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the front seat. Refer to Seat Replacement .
  2. Remove the front seat cushion outer finish panel. Refer to Seat Cushion Outer Trim Panel Replacement .
  3. Remove the seat memory module electrical connectors.
  4. Remove the anti-submarining switch electrical connector.
  5. Remove the seat adjuster. Refer to Power Seat Adjuster Mechanism Replacement .

  6. Object Number: 246347  Size: SH
  7. Remove the anti-submarining switch (1). Unhook anti-submarining switch from three places on the inner seat adjuster. Two at the top of the seat adjuster and one at the bottom.

Installation Procedure


    Object Number: 246347  Size: SH
  1. Install the anti-submarining switch (1).
  2. Important: The anti-submarining switch must be attached at all three places on the seat adjuster or the seat may be allowed to tilt too far forward during a collision, allowing the occupant to slide under the air bag.

  3. Hook anti-submarining switch to three places on the inner seat adjuster. Two at the top of the seat adjuster and one at the bottom.
  4. Install the seat adjuster. Refer to Power Seat Adjuster Mechanism Replacement .
  5. Install the anti-submarining switch electrical connector.
  6. Install the seat memory module electrical connectors.
  7. Install the front seat cushion outer finish panel. Refer to Seat Cushion Outer Trim Panel Replacement .
  8. Install the front seat. Refer to Seat Replacement .
  9. With the seat in the vehicle, check that the anti-submarining switch arms move up and down with the seat adjuster.