GM Service Manual Online
For 1990-2009 cars only

Caution: If the vehicle interior is exposed to moisture and becomes soaked up to the level of the sensing and diagnostic module (SDM), the SDM and SDM harness connector must be replaced. The SDM could be activated when powered, which could cause airbag deployment and result in personal injury.


Object Number: 639653  Size: SH

Depending on the location of the waterleak, you may have to remove certain interior components in order to repair the leak.

  1. If the floor carpet is wet refer to Floor Carpet Drying in Interior Trim.

  2. Object Number: 639652  Size: SH
  3. Cut out a portion of the adhesive caulking in the leak area from inside or outside of the vehicle.
  4. Clean and remove all loose particles of the adhesive old caulking from the area.
  5. Apply joint body and seam sealer where the old adhesive caulking was removed.
  6. Allow the adhesive caulking to dry for several hours.
  7. Test for leaks.
  8. Install the trim, if removed.