U can lock and unlock it to see which one is making the noise.
Jeep door lock makes noise.
If u dont fix this it has a 50 50 chance of locking and staying in the lock or unlock position p.
In some cars a door lock actuator becomes noisy and produces a squeaking or buzzing noise when the power door locks are locked or unlocked.
Unusual noises coming from inside the door are one of the first symptoms of a potential problem with a power door lock actuator.
Report 2010 jeep liberty 67 000 mi.
Those noises are normal.
Power door locks in the front of the vehicle passenger and driver sides started making a humming type of noise and short thereafter stopped powering up and down both front door locks.
P welcome to the site my name is kevin p p the buzzing sound is a door lock actuator going bad.
We had to operate the locks several times as the motor did not make the noise each time.
Unusual noises coming from inside the door are one of the first symptoms of a potential problem with a power door lock actuator.
Each door has the same type of motor.
On our gc it turned out to be the driver s side rear door.
Real simple to replace no tricks.
Sinister you ll have to determine which of the door motors is making the noise.