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 WarningCenter Pillar Upper Garnish Molding Replacement
Preliminary Procedure
Remove the center pillar lower garnish molding. Refer to Center Pillar
Lower Ga rnish Molding Replacement
Remove the seat belt from the front seat. Refer to Driver or Passenger
Seat Retractor Side Belt Replacement
Center Pillar Upper Garnish Mo ...
Engine Overheating
There is an engine coolant temperature gauge on the vehicle instrument cluster
to warn of engine overheating.
If the decision is made not to lift the hood when this warning appears, get service
help right away.
If the decision is made to lift the hood, make sure the vehicle is parked on
a le ...
Metric Fasteners
This vehicle provides fastener dimensions using the metric system. Most
metric fasteners are approximate in diameter to equivalent
English fasteners. Make replacements using fasteners of the same nominal
diameter, thread pitch, and strength.
A number marking identifies the OE metric fastener ...