For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningAir/Wind Noise
Special Tools
CH-39570 Chassis Ear
GE-41416 Ultrasonic Leak Detector
Warning: Refer to Assistant Driving Warning in the Preface section.
To analyze a reported windnoise condition, test drive the vehicle to
determine the origin of the noise.
Choose a regular route with smooth and strai ...
StabiliTrak® Syste
The StabiliTrak system assists with directional control of the vehicle in difficult
driving conditions. The system is on when the vehicle is started.
• To turn off both Traction Control and StabiliTrak, press and hold
until
and
illuminate in the instrument cluster.
• Press again to turn o ...
Installation Procedure
Align the rear compartment floor panel.
Drill 8 mm (5/16 in) for plug welding along the edges of the rear compartment
floor panel as noted from the original panel.
Clean and prepare the attaching surfaces for
welding.
Position the rear compartment floor panel on the vehicle.
V ...