Why is my 2009 Chevy Malibu door lock button not working?

The 2009 Chevy Malibu door lock button may not work for many reasons such as a faulty door lock actuator, blown fuse, or bad door lock cable. Unusual noises coming from inside the door are one of the firSTSymptoms of a potential problem with a power door lock actuator.Most power door locks operate using gears or motors that may quietly whir, or make noise when they operate. The noises may get louder until the actuators eventually fail.Erratic operation can also be caused by a frayed wiring harness in the door hinge area or inside the actuator itself. Another symptom of a potential problem with the power door lock actuators is door locks that behave erratically.