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 WarningWinter Driving
Driving on Snow or Ice
Drive carefully when there is snow or ice between the tires and the road, creating
less traction or grip.
Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting
in even less traction.
Avoid driving on wet ice or in freezing rain until roads c ...
Installation Procedure
Drill 8 mm (5/16 in) for plug welding along the edges of the front
compartment upper side rail as noted from the original panel.
Clean and prepare the attaching surfaces for welding.
Position the front compartment upper side rail on the vehicle.
Verify the fit of the fr ...
Steering Wheel Inflatable Restraint Module Coil Replacement
Preliminary Procedure
Remove the steering column upper trim cover. Refer to Steering Column
Upper Trim Cover Replacement.
Remove the steering column lower trim cover. Refer to Steering Column
Lower Trim Cover Replacement.
Remove the steering wheel. Refer to Steering Wheel Rep ...