
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 RepairSteering Wheel Controls
For vehicles with audio steering wheel controls, some audio controls can be adjusted
at the steering wheel.
: For vehicles with a Bluetooth,
OnStar, or navigation system, press to interact with those systems.
: Press to silence the vehicle speakers
only. Press again to turn the sound on. ...
Definition of Danger, Warning, Caution, and Note
The diagnosis and repair procedures in a GM Service Manual contain both
general and specific Dangers, Warnings, Cautions, Notes or
Importants. GM is dedicated to the presentation of service information that
helps the technician to diagnose and repair the systems
necessary for the proper operat ...
Installation Procedure
Remove the front wheelhouse rear panel brace (1) from service panel.
Create 6 x 20 mm (4/16 x 12/16 in) slots for MIG-brazing along the edges
of the front wheelhouse (1).
Clean and prepare the attaching surfaces for brazing.
Note: In MIG-brazing areas 50 mm (2 in) must b ...