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 WarningVehicle Certification, Tire Placard, Anti-Theft, and Service Parts ID Label
Vehicle Certification Label
The vehicle certification label is located on the driver door and displays
the following assessments:
Gross Vehicle Weight Rating (GVWR)
Gross Axle Weight Rating (GAWR), front and rear
The gross vehicle weight (GVW) is the weight of the vehicle and everything it ...
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS).
The TPMS is designed to warn the driver when a low tire pressure condition exists.
TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare
tire and wheel assembly. The TPMS sensors monitor the air pressure in t ...
Traction Control System (TCS)
The vehicle has a Traction Control System (TCS) that limits wheel spin.
On a front-wheel-drive vehicle, the system operates if it senses that one or
both of the front wheels are spinning or beginning to lose traction. When this happens,
the system brakes the spinning wheel(s), and/or reduces en ...