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.
- If the floor carpet is wet refer to 
Floor Carpet Drying 
in Interior Trim.
 
- Remove the trim moldings or the headliner in order to repair the
  leak, if needed. 
 
- Determine the source of water entry.
 
- If water is leaking at the edge of the windshield, reseal the
  windshield using  Urethane Adhesive Caulking Kit GM P/N 12346392
      or the equivalent.
 
- If water leaks into the vehicle at the sides of the stationary
  windows, reseal the window using Urethane Adhesive Caulking  Kit GM P/N 12346392
       or the equivalent.