Rear Window Defogger System Components
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The rear window defogger system consist of the following components:
- HVAC control module
- Body control module (BCM)
- DEFOG relay
- Rear window defogger grid