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 WarningService Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission,
axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably
service General Motors c ...
Reclining Seatbacks
WARNING
If either seatback is not locked, it could move forward in a sudden stop or
crash. That could cause injury to the person sitting there.
Always push and pull on the seatbacks to be sure they are locked.
To recline the seatback:
1. Lift the lever.
If necessary, move the safety belt ou ...
Heated Seats
If available, the controls are on the center stack. The engine must be running
to operate the heated seats.
Press or
to heat the driver or passenger seat
cushion and seatback.
Press the control once for the highest setting. With each press of the control,
the heated seat will change to ...