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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1139 (Immobilizer System) >> Description and Operation >> Immobilizer Description and Operation (with RPO Y41) >> Ignition Mode Switch

Ignition Mode Switch

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The ignition mode switch is located at the right side of the steering column. The ignition mode switch is used to start the vehicle engine, turn OFF the vehicle, put the vehicle in ACC mode, or put the vehicle in RUN mode.