Mazda 3 Car Door Lock Relay Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(1,277)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(1,277)

Car Door Lock Relay Replacement Service

How much does a Car Door Lock Relay Replacement cost?

On average, the cost for a Mazda 3 Car Door Lock Relay Replacement is $109 with $14 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 Mazda 3L4-2.5LService typeCar Door Lock Relay ReplacementEstimate$163.77Shop/Dealer Price$185.97 - $230.05
2017 Mazda 3L4-2.0LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.98 - $210.08
2008 Mazda 3L4-2.0LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.98 - $210.08
2012 Mazda 3L4-2.5LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.96 - $210.04
2010 Mazda 3L4-2.5LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$166.00 - $210.11
2011 Mazda 3L4-2.5LService typeCar Door Lock Relay ReplacementEstimate$143.77Shop/Dealer Price$165.98 - $210.08
2010 Mazda 3L4-2.0LService typeCar Door Lock Relay ReplacementEstimate$148.77Shop/Dealer Price$170.85 - $214.84
2014 Mazda 3L4-2.5LService typeCar Door Lock Relay ReplacementEstimate$148.77Shop/Dealer Price$171.22 - $215.50
Show example Mazda 3 Car Door Lock Relay Replacement prices

What is the Door Lock Relay all about?

Power door locks used to be a luxury feature on vehicles, but they've become so mainstream that nearly every vehicle is now equipped with them. The lock’s function is to make securing your vehicle, as well as passengers, simple and easy. Instead of reaching across the vehicle to lock or unlock the doors, it can be done by simply pressing a button. Pressing the button completes a circuit, enabling the lock actuator to receive power which activates the locking mechanism to the desired position. The circuit is routed through a door lock relay, which acts as a switch to direct the power to actuators on the door locks. When unlock is pressed, the door lock relay switches from a neutral position to activating a pulse of power to the unlock circuits on the actuators. When the lock button is pressed, a pulse of power is switched to the lock circuit of the actuator to lock the doors. When the relay for the door locks is not working properly or sticking, either the lock function, the unlock function, or both are inoperative.

Keep in mind:

  • When service is performed on any electrical system, the battery should be disconnected to prevent accidental damage or injury.
  • If the door lock relay needs to be replaced, it can be indicative of an underlying concern with the power door locks.
  • Some vehicles equipped with remote keyless entry will find the key fob operates the driver’s door lock even while the door lock relay is defective.

How it's done:

  • Test the operation of electric door locks.
  • Test the fuse for that circuit.
  • Test the relay.
  • Replace the faulty relay.
  • Test for proper operation of electric door locks.

Our recommendation:

If you are experiencing problems with your power door locks, have one of our expert technicians diagnose and repair the system. Relays and electrical systems can be complex, and a broken wire or door lock actuator problem can easily mimic the symptoms of a door lock relay and vice versa.

What common symptoms indicate you may need to replace the Door Lock Relay?

  • Power door locks don’t lock when you press the button, while the unlock feature works.
  • Neither the lock nor unlock functions work.

How important is this service?

Power door locks are a convenience feature on your vehicle. If the power locks aren’t working, you can use the key to unlock your door and the locks can be manually operated as well. Have the power door lock system repaired at your convenience.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

Excellent Rating

(1,277)

Rating Summary
1,204
40
13
4
16
1,204
40
13
4
16

Brian

11 years of experience
3 reviews
Brian
11 years of experience
Mazda 3 L4-2.5L - Alternator - Fairfield, California
Some of Brian's 5 star qualities include being, ontime, experienced and a pleasure to work with.

Owen

17 years of experience
11 reviews
Owen
17 years of experience
Mazda 3 L4-2.0L - Brake Rotor/Disc Replacement (Front, Rear) - San Mateo, California
Thank you. A professional clean and quick. 5 ⭐️

John

20 years of experience
568 reviews
John
20 years of experience
Mazda 3 L4-2.0L - Battery - Orlando, Florida
Great first experience with YourMechanic!

Logan

49 years of experience
82 reviews
Logan
49 years of experience
Mazda 3 L4-2.0L - Brake Pads Replacement (Rear) - Pleasanton, California
Logan was awesome. On time, fixes my break pads quickly and got the job done right. Highly recommend.

Excellent Rating

(1,277)

Rating Summary
1,204
40
13
4
16
1,204
40
13
4
16
Number of Mazda 3 services completed
14047+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mazda MECHANICS
1100+
experts on our platform

Recent articles & questions

Are New Car Prices Negotiable?
When When purchasing a new car, you may turn away options due to its price, interest rate and other fees. It is important to understand all these costs up front when you want to buy a new vehicle. Often, you...
How to Become an Automotive Mechanic
Pursuing Pursuing a career in auto repair can be an exciting opportunity, but it doesn’t happen overnight. Being a mechanic usually requires professional certification, schooling, hands-on experience as well as a strong work ethic. Mechanics often work long hours and...
How to Buy a Classic Pontiac
Whether you want to buy a classic Pontiac for yourself or as a gift, here are some tips on buying one for a great value.

Air conditioner blows warm air

There are many reasons for poor AC performance, from low refrigerant, to a failed compressor. I suggest you have an AC performance test performed on your vehicle to determine the cause. This test involves hooking up gauges to the A/C...

My car won’t start in the morning sometimes, I put a new battery in it but when you jump it, it will start

Hi Nicholas. Thanks for sending your question today. There are several things that must all work together in order to start a car. So, without knowing the details about what specifically is happening when you attempt to start, it's hard...

I changed the throttle body and the pedal sensor on my 2012 Jeep [compass](/topics-compass/) 2.4L and did the reset (pressing the pedal down and releasing and then turning the car on). It worked no light for maybe a half hour and then the red lightning bolt showed up, and the check engine light came on. When I scanned the codes it's was a P0221 and P2135. Not sure what to do now.

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com