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:

California Proposition 65 WarningRear Bumper Fascia Tow Eye Access Hole Cover Replacement
Rear Bumper Fascia Tow Eye Access Hole Cover Replacement
Callout
Component Name
1
Rear Bumper Fascia Rear Tow Eye Access Hole Cover
Procedure
Using a small flat-bladed tool, release the cover from the rear
bu ...
Throttle Body Heater Outlet Pipe Replacement (LUW)
Throttle Body Heater Outlet Pipe Replacement
Callout
Component Name
Preliminary Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling.
1
Engine Coolant Air Bleed Hose
...
Engine Coolant Fan Replacement (LDE/LUW)
Removal Procedure
Unclip transmission cooler lines from shroud if equipped.
Unclip radiator surge tank outlet hose from fan shroud.
Disconnect the engine coolant fan wiring harness.
Note: You stand against driving direction.
Unclip the engine coolant fan ...