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 WarningFront Seat Belt System
The front seat belt system includes a driver and passenger seat belt
pretensioner retractor. Both front seat belt pretensioners includes a
seat belt switch in the seat buckle which controls a reminder lamp and a tone
alarm.
Note: The front passenger seat is equipped with a passenger
presence ...
Installation Procedure
Drill 8 mm (5/16 in) for plug welding along the edges of the drivetrain
and front suspension frame front support as noted from the
original panel.
Clean and prepare the attaching surfaces for welding.
Position the drivetrain and front suspension frame front suppor ...
Recreational Vehicle Towing
Recreational vehicle towing refers to towing the vehicle behind another vehicle
– such as behind a motor home. The two most common types of recreational vehicle
towing are known as dinghy towing and dolly towing. Dinghy towing is towing the
vehicle with all four wheels on the ground. Dolly tow ...