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 WarningPretensioner Handling and Scrapping
Special Tools
EL-38826 SIR Deployment Harness
EL-39401-B SIR Deployment Fixture
For equivalent regional tools, refer to Special Tools.
Warning: When you are carrying an undeployed seat belt pretensioner:
Do not carry the seat belt pretensioner by the wires or connector on the
preten ...
Using the System
The infotainment system is controlled by touching the screen, and by using the
knobs and other buttons.
Voice recognition, through the steering wheel controls, can be used to control
the infotainment features.
Press on the steering wheel controls
to begin voice recognition.
See Voice Recog ...
Securing Child Restraints (Rear Seat)
When securing a child restraint in a rear seating position, study the instructions
that came with the child restraint to make sure it is compatible with this vehicle.
If the child restraint has the LATCH system.
Do not secure a child seat in a position without a top tether anchor if a national
...