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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Door System, Mirror System & Window System) >> Description and Operation >> Power Door Locks Description and Operation >> Key Cylinder Unlock

Key Cylinder Unlock

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 body control module (BCM) will unlock all of the doors after detecting a door lock cylinder switch in the unlock position for greater than 1 second.

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