1st Design. Mechanism to secure door to chassis. Motor to Lock and unLock car door. Assembly - Side. Controller. Door Motor. Dovetail.

Door Latch AssemblyDoor Lock Actuator Motor

Fits LaCrosse (2005 - 2009)

LaCrosse; Right.
Door Lock Actuator - Repair or Replace
Your Buick LaCrosse may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.