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 WarningDriver or Passenger Seat Side Inflatable Restraint Module Replacement
Warning: Refer to SIR Inflator Module Handling and Storage Warning
in the Preface section.
Warning: Following the deployment of a side impact air bag, inspect the
following parts for damage. Replace these parts if
necessary:
The seat cushion frame
The seat recliner, if equipped
T ...
Ashtrays
For vehicles with a removable ashtray, the ashtray can be placed into the front
console cupholders.
To open the ashtray, lift the lid of the ashtray. After using, close the lid.
To empty the ashtray for cleaning, slightly turn the upper part of the ashtray
counterclockwise and remove it.
Noti ...
Exterior Windnoise
Warning: Refer to Assistant Driving Warning in the Preface section.
Exterior windnoise is louder when the vehicle is driven with one or more
windows down. Exterior windnoise occurs when air passes over
the body panels, the seams, or the openings. Use the following items during the
test drive i ...