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:

California Proposition 65 WarningCertification Label
Label Example
A vehicle-specific Certification label is attached to the vehicle's center pillar
(B-pillar). The label tells the gross weight capacity of the vehicle, called the
Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight of the vehicle,
all occupants, fuel, and carg ...
Rear Window Defogger Description and Operation
Rear Window Defogger System Components
The rear window defogger system consist of the following components:
The HVAC control module
The body control module (BCM)
The rear defogger relay
The rear window grid
Driver outside rearview mirror
Passenger outside rearview mirro ...
Engine Coolant Temperature Sensor Replacement (Radiator)
Engine Coolant Temperature Sensor Replacement - Radiator
Callout
Component Name
Preliminary Procedures
Drain the cooling system. Refer to Cooling System Draining and Filling.
1
Retaining C ...