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 WarningDriving Characteristics and Towing Tips
Driving with a Trailer
When towing a trailer:
• Become familiar with the state and local laws that apply specifically to trailer
towing.
• Do not tow a trailer during the first 800 km (500 mi), to prevent damage to the
engine, axle or other parts.
• Then, during the first 800 km (500 mi) tra ...
Accessories and Modifications
Adding non‐dealer accessories or making modifications to the vehicle can affect
vehicle performance and safety, including such things as airbags, braking, stability,
ride and handling, emissions systems, aerodynamics, durability, and electronic systems
like antilock brakes, traction cont ...
Rear Bumper Fascia Outer Guide Replacement
Preliminary Procedure
Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement.
Rear Bumper Fascia Outer Guide Rivet (Qty: 3)
Special Tools
BO-594-A Hand Rivet Tongs
For equivalent regional tools, refer to Special Tools.
Rear Bumper Fascia Outer Guide
...