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 WarningSeat Heating and Cooling
Specifications
Heated/Cooled Seat Schematics
Front Seat Heater Control Module Replacement
Preliminary Procedure
Driver or passenger seat replacement. Refer to Driver or Passenger Seat
Replacement.
Front Seat Heater Control Module Bolt (Qty: 2)
Caution: Refer to Fastener Cauti ...
Intermediate Steering Shaft Replacement
Removal Procedure
Turn the steering wheel to the straight forward position and support it
from movement
Remove the 2 intermediate steering shaft bolts (1).
Remove the intermediate steering shaft (1).
Installation Procedure
Install the intermediate steering shaft ...
Interior Care
To prevent dirt particle abrasions, regularly clean the vehicle's interior.
Immediately remove any soils. Note that newspapers or dark garments that can
transfer color to home furnishings can also permanently transfer color to the vehicle's
interior.
Use a soft bristle brush to remove ...