How Long Does a Door Lock Actuator Last?

The door lock actuator locks and unlocks your vehicle’s doors. The lock buttons are located on each of the doors, with a master switch on the driver’s door. Once the button is pressed, it triggers the actuator, allowing the doors to be locked. This is a safety feature so people cannot get in your vehicle while it is parked, and passengers cannot get out while you are driving down the road.

The door lock actuator is a small electric motor. It works with a series of gears. Once engaged, the motor turns spur gears that serve as a gear reduction. The rack and pinion gears are the last gear set and are connected to the actuator rod. This converts the rotational motion into linear motion which moves the lock.

Some vehicles made today do not have a separate door lock assembly, so the entire thing needs to be replaced, rather than the actuator. This depends on the make and model of your vehicle so it is best to have it inspected by a professional mechanic.

The door lock actuator can go bad over time because it is used on a regular basis. The motor can fail, or different parts in the motor can go bad. As soon as you notice something is not right with the locks, contact a professional mechanic to have your door lock actuator replaced.

Since this part can go bad over time, you should be aware of the symptoms that indicate it is coming to the end of its life. This way, you can be prepared with a scheduled maintenance and hopefully not be without door locks on your vehicle.

Signs your door lock actuator needs to be replaced include:

  • Some or none of the doors will lock on your vehicle
  • Some or none of the doors will unlock on your vehicle
  • The locks will work sometimes but not always
  • The car alarm will go off for seemingly no reason
  • When the door locks or unlocks, the actuator makes a weird noise while it is performing this operation

This repair should not be put off because it is a safety concern. Make sure you consult a certified technician if you are experiencing any of the above issues.


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Recent Car Door Lock Actuator Replacement reviews

Excellent Rating

(422)

Rating Summary
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Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Acura MDX V6-3.5L - Door Lock Actuator Replacement (Driver Side Rear) - Henderson, Nevada
He was prompt, clean and efficient. This was my first experience with Your Mechanic. I would highly recommend them and Raymond.
Cadillac CTS - Door Lock Actuator Replacement (Driver Side Front) - Las Vegas, Nevada
Polite and the service was super quick! Raymond definitely knew what he was doing. The convenience of coming to my home is a plus!

John

7 years of experience
44 reviews
John
7 years of experience
Lexus GS350 V6-3.5L - Door Lock Actuator Replacement (Driver Side Front) - Riverview, Florida
John came to my house on time, was very polite, and installed a new door lock actuator on the drivers side front door of my Lexus GS350. He was very patient and meticulous with his work. I watched him do most of the work while talking with him. There were two wire connections and 5 electrical connections inside the door, and another hidden cable-ball joint for the outside door handle that he had to discover. He took his time and did an excellent job. I will ask for him every time I need service again on either of my cars.

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Porsche Cayenne V6-3.6L - Door Lock Actuator Replacement (Passenger Side Rear) - Parker, Colorado
Very happy with Kanstantsins work, and he was patient with the old man that watched him work on my car! Would have him work on any of my vehicles at any time! It's hard to find good people that want to work and do a great job!! Thanks

Derrick

20 years of experience
106 reviews
Derrick
20 years of experience
Toyota Highlander V6-3.3L - Door Lock Actuator Replacement (Driver Side Front) - Brooklyn, New York
Derrick was exceptional in all ways! He kept me informed on his trip to my house and arrived slightly earlier than his 9:00 A.M. appointment time. His work was exceptional and carefully done in well under the estimated time of 2 hours. He replaced the door lock actuator on the driver's door and now the door locks and unlocks perfectly. He was courteous, highly experienced, and knowledgeable in, it seems, most if not all automotive work! I definitely recommend him and would want him to work on my Toyota or another vehicle in the future. Thank You Derrick!

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