Buy 2005 Buick Century Lock. Actuator. Latch. (Front). All Models; Left; w/Power Locks; w/Keyless Entry Entry, Left, Keyless - OEM Buick Part # 15110643 (15068499)

Anti-Theft System. Incl.Latch. Keyless Entry. Mechanism to secure door to chassis. Motor to Lock and unLock car door. Side. Door Motor.

Door Latch AssemblyDoor Lock Actuator Motor

All Models; Left; w/Power Locks; w/Keyless Entry. W/keyless entry. W/power, w/remote entry. W/remote entry.
Door Lock Actuator - Repair or Replace
Your 2005 Buick Century may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.