Sinister you ll have to determine which of the door motors is making the noise.
Jeep door lock makes noise.
We had to operate the locks several times as the motor did not make the noise each time.
P welcome to the site my name is kevin p p the buzzing sound is a door lock actuator going bad.
If the electric motor or the mechanism inside the door lock actuator wears out the door lock may lock or unlock slowly or work sometimes but not all the time.
Those noises are normal.
Unusual noises coming from inside the door are one of the first symptoms of a potential problem with a power door lock actuator.
U can lock and unlock it to see which one is making the noise.
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.
Real simple to replace no tricks.
Most power door locks operate using gears or motors that may quietly whir or make noise when they operate.
If u dont fix this it has a 50 50 chance of locking and staying in the lock or unlock position p.
Report 2010 jeep liberty 67 000 mi.
Each door has the same type of motor.
Unusual noises coming from inside the door are one of the first symptoms of a potential problem with a power door lock actuator.