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 WarningDanger, Warnings, and Cautions
Warning messages found on vehicle labels and in this manual describe hazards
and what to do to avoid or reduce them.
Danger indicates a hazard with a high level of risk which will result in serious
injury or death.
Warning or Caution indicates a hazard that could result in injury or death.
WA ...
Rear Side Door Weatherstrip Replacement - Door Side
Rear Side Door Check Bolt
Caution: Refer to Fastener Caution in the Preface section.
Tighten
25 N·m (19 lb ft)
Rear Side Door Weatherstrip - Door Side
Procedure
Unclip weatherstrip from rear side door.
When removing protective liners from adhesive tape, be care ...
SIR 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 ...