OnStar Additional Information
IntroductionRear Window Defogger Description and Operation
Rear Window Defogger System Components
The rear window defogger system consists of the following components:
HVAC Control Module
HVAC Control Head
Rear Window Defogger Relay
Rear Defogger Grid
F28UA 40A Fuse
Rear Window Defogger Operation
The rear defog control system utilizes a sin ...
Rear Compartment Lid Emblem/Nameplate Replacement (Rear Emblem)
Rear Compartment Lid Emblem Assembly
Caution: Refer to Exterior Trim Emblem Removal Caution in the
Preface section.
Procedure
The part and surface should be 21°C (70°F) prior to installation. The
vehicle should remain 21°C (70°F) for
one hour after assembly to allow adhesive to deve ...
Removal Procedure
Warning: Refer to Glass and Sheet Metal Handling Warning in the
Preface section.
Disable the SIR System. Refer to SIR Disabling
and Enabling.
Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the rear side door. Refer to ...