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2011-2017 Buick Regal Door Lock Actuator and Latch Guide

If your Regal's door won't lock or makes a grinding noise, this guide is for you.

4 minutes to read 2011-2017 Buick Regal
Difficulty
3/5
Est. Time
2 hrs
DIY Doable?
✅ Yes
Shop Labor
$110-$198
Used OEM Price
$25-$70
⚠️ Drivable, but... — Yes, but the affected door may not lock, which poses a security risk for your vehicle and belongings.
Key Takeaways
  • Failure of a single door lock actuator is a common wear-and-tear issue on the 2011-2017 Buick Regal.
  • Symptoms often start with a buzzing or grinding noise from the door before the lock fails completely.
  • You must replace the entire latch and actuator assembly; they are sold as one unit for this vehicle.
  • The part is specific to each door's location (e.g., Front Driver Side), so be sure to order the correct one.
The door lock actuator is a small electric motor inside each door of your 2011-2017 Buick Regal. When you press the lock or unlock button on your key fob or door panel, it gets a signal to move the door's lock. This part is combined with the mechanical latch that holds the door shut. It also has a switch that tells the car if a door is open, which controls your dome lights and 'door ajar' warning.

Is Your Buick Regal's Door Lock Failing?

Comparison between a new, functional door lock actuator and a failed unit with internal gear damage and connector corrosion.
While a new actuator (left) operates smoothly, internal mechanical failure or electrical corrosion (right) are the primary causes of door lock malfunction in the Regal.

A common problem on the 2011-2017 Buick Regal is the failure of a door lock actuator. This part works hard, locking and unlocking the doors thousands of times. When it wears out, you might find one door that won't lock with the remote, or you may hear strange noises. This is usually not a safety issue for driving, but it is a major security risk if a door cannot be locked. The failure is typically isolated to a single door; if all your locks fail at once, the problem is more likely a fuse or the Body Control Module (BCM).

Don't Ignore a Failing Actuator

Leaving a door unlocked makes your vehicle an easy target for theft. It's best to address this issue as soon as symptoms appear to keep your car and belongings secure.

Choosing the Right Aftermarket Actuator

A premium aftermarket door lock actuator assembly in its retail packaging.
Premium aftermarket brands like Standard Motor Products offer robust testing and quality control for Regal door lock replacements.

For the 2011-2017 Buick Regal, the door lock actuator is part of the complete door latch assembly. You must replace the entire unit. When shopping 🎬 Watch: Step-by-step Buick Regal door lock actuator replacement guide for a new aftermarket part, you'll find a few quality tiers. It's important to understand the differences, as fit and longevity can vary.

Brand Tiers for Your Regal

  • Premium Aftermarket (e.g., Standard Ignition): Brands like Standard Motor Products specialize in electrical components and are known for robust testing and quality control that often meets or exceeds original part standards. They are a reliable choice for a long-lasting repair.
  • Standard Aftermarket (e.g., URO Parts, Replacement): These brands offer a balance of affordability and quality. URO Parts are designed to meet OEM specifications and can be a good alternative to more expensive dealer parts. "Replacement" branded parts are often the most budget-friendly option, but quality can be inconsistent. While they can save you money, some user reviews for generic aftermarket actuators mention premature failure.

Pro Tip: Check Your Connections

Before ordering, confirm which door is failing. The part is specific to each door (Front Left, Rear Right, etc.). Also, when you remove the old part, inspect the wiring connector for any green or white corrosion. A bad connection can mimic a failed actuator.

🎬 See how to test and replace a car door actuator

Cost of Replacing a Buick Regal Door Lock Actuator

A mechanic working on the interior of a Buick Regal door with the panel removed to access the latch assembly.
Labor costs for replacing the actuator can vary, as the technician must remove the interior door panel to access the integrated latch assembly.

The total cost depends on whether you do the job yourself or hire a professional. The part itself is affordable, but labor can add a significant amount to the final bill.

Cost Type Estimated Price Range
New Aftermarket Part $63.29 - $253.26
Shop Labor $110 - $198
Total Professional Repair $173 - $451+

Frequently Asked Questions

The Body Control Module (BCM) or fuse panel which controls the central locking system in a Buick Regal.
If all door locks fail simultaneously, the issue is likely the Body Control Module (BCM) or a blown fuse rather than the individual actuators.
Can I replace just the motor inside the actuator?

Some DIY-focused owners attempt to replace only the small electric motor inside the actuator assembly to save money. While technically possible for those with advanced skills, it is not recommended. It requires desoldering and carefully disassembling the sealed unit, which can easily be damaged. For a reliable and lasting repair, replacing the entire latch and actuator assembly is the correct procedure.

All my locks stopped working at once. Is it the actuators?

It is extremely unlikely that all four actuators would fail at the same time. If all locks are unresponsive, the problem is almost certainly a central issue, like a blown fuse for the door lock system or a problem with the Body Control Module (BCM) that sends the lock/unlock signals.

Are there any recalls for the 2011-2017 Regal door locks?

No, there are no specific recalls or widespread Technical Service Bulletins (TSBs) from GM for door lock actuator failure on the 2011-2017 Buick Regal. However, the issue is a common complaint among owners of this vehicle and other GM models that share the same platform.

🎬 Watch: Rear door actuator replacement on a similar GM platform
Is the front actuator different from the rear?

Yes, the actuators are specific to each door's location (Front Left, Front Right, Rear Left, Rear Right). They are not interchangeable. You must order the correct part for the specific door that is having the problem.

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Technical Specifications

OEM Part Numbers: 13502466 13503149 13503801 13503819 13577983 13579522

The actuator is integrated with the door latch assembly. It includes a 6-pin electrical connector and connections for the interior and exterior door handle rods/cables. The assembly is secured by three Torx bolts at the edge of the door.

Wrenchy
Article researched & written by
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Meet Wrenchy → Updated May 31, 2026

The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.

Year Coverage
This article covers the Door Lock Actuator for:
  • Buick Regal: 2011201220132014201520162017
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