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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Vehicle Access System >> Description and Operation >> Rear Hatch/Gate Description and Operation >> Liftgate Latch Assembly

Liftgate Latch Assembly

When the passenger door, right rear door and liftgate have been commanded to lock with a door lock switch or a keyless entry transmitter, the exterior liftgate release switch will become inoperative the same way the passenger door handles will become inoperative to prevent unauthorized access. Also the passenger and right rear doors must be commanded to unlock to enable the exterior liftgate release switch. When the exterior liftgate release switch is pressed, the body control module will provide B+ voltage to the liftgate latch unlatch control circuit and ground to the unlock control 2 circuit causing the liftgate latch assembly to perform the unlatch function releasing the liftgate and allowing the liftgate to be pulled open.