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

Air Hose Test
Stationary Window Waterleak RepairWindows
WARNING
Never leave a child, a helpless adult, or a pet alone in a vehicle, especially
with the windows closed in warm or hot weather.
They can be overcome by the extreme heat and suffer permanent injuries or even
death from heat stroke.
The vehicle aerodynamics are designed to improve fuel ...
Service Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission,
axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably
service General Motors c ...
Inflatable Restraint Passenger Presence Detection System - If Equipped
Note: The passenger presence detection system includes an ECU and a
sensor mat that can be serviced separately. After repairing or
replacing any part of the passenger presence detection system, the system must
be rezeroed in order to function properly.
The passenger presence detection system i ...