Rear Window Defogger System Components

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. 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, contains switch and indicator
Body control module (BCM)
Rear window defogger grid
RR DEFOG relay-located in the instrument panel (I/P) fuse block
RR DEFOG fuse-located in the underhood fuse block