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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1307 (Wiring Systems And Power Management - Introduction) >> Description and Operation >> Retained Accessory Power Description and Operation >> Serial Data Control of Retained Accessory Power (RAP) >> Vehicle Communication Interface Module (VCIM) (OnStar®)

Vehicle Communication Interface Module (VCIM) (OnStar®)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

VCIM RAP activation/termination is the same as radio operation with 1 exception; if there is an active call when the ignition key is turned off the VCIM will remain in RAP mode and keep the radio in RAP mode until the call is terminated.