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 WarningSIR Inflator Module Handling and Storage Warning
Warning: When carrying an undeployed inflator module:
Do not carry the inflator module by the wires or connector.
Make sure the air bag opening points away from you.
When storing an undeployed inflator module:
Make sure the air bag opening points away from the surface on which
the in ...
Installation Procedure
Create 6 x 20 mm (4/16 x 11/16 in) slots for MIG-brazing along the upper
edges of the service panel as noted from the original
panel.
Clean and prepare the attaching surfaces for brazing and spot welding.
Position the body lock pillar inner panel on the vehicle.
Verify the ...
Halogen Bulb Warning
Warning: Halogen bulbs contain gas under pressure. Handling a bulb
improperly could cause it to shatter into flying glass fragments. To
help avoid personal injury:
Turn off the lamp switch and allow the bulb to cool before changing
the bulb.
Leave the lamp switch OFF until the bulb chang ...