Buy 2006 Gmc Sierra 3500 SLT Extended Cab Pickup 8.1L Vortec V8 A/T RWD Lock. Latch. Actuator. (Front) Entry, Left, Keyless - OEM Gmc 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 2006 GMC Sierra 3500 may need a new door lock actuator if your keyless entry doesn't work or your lock button doesn't lock the doors.