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 WarningInstrument Panel Assembly Replacement
Preliminary Procedures
Disable the SIR system. Refer to SIR Disabling and Enabling
Remove the front floor console assembly. Refer to Front Floor Console
Replacement.
Remove the radio assembly. Refer to Radio Replacement.
Remove the driver information display bezel. Refer ...
Safety Belts
This section of the manual describes how to use safety belts properly. It also
describes some things not to do with safety belts.
WARNING
Do not let anyone ride where a safety belt cannot be worn properly. In a crash,
if you or your passenger(s) are not wearing safety belts, injuries can be mu ...
Engine Heater
The engine heater, if available, can help in cold weather conditions at or below
−18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug
in the heater at least four hours before starting the vehicle. An internal thermostat
in the plug end of the cord will prev ...