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 WarningPower Door Locks Description and Operation
Door Lock System Components
The power door lock system consists of the following components:
Door lock switch - located in the center of the instrument panel
Body control module (BCM)
Driver door latch
Passenger door latch
Left rear door latch
Right rear door latch
Door Lock System ...
Airbag System
The vehicle has the following airbags:
• A frontal airbag for the driver.
• A frontal airbag for the front outboard passenger.
• A knee airbag for the driver.
• A knee airbag for the front outboard passenger.
• A seat-mounted side impact airbag for the driver.
• A seat-mounted side impac ...
Daytime Running Lamps (DRL)
Daytime Running Lamps can make it easier for others to see the front of your
vehicle during the day. Fully functional daytime running lamps are required on all
vehicles first sold in Canada.
A light sensor on top of the instrument panel makes the DRL work, so be sure
it is not covered.
The D ...