Is Your Buick Regal Experiencing Electrical Gremlins?
If you’re dealing with a frustrating array of electrical issues in your vehicle—from flickering lights and malfunctioning power windows to a car that won’t start—the culprit is often a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, managing everything from interior lighting and security systems to door locks and climate control. When it starts to fail, it can create a cascade of seemingly unrelated problems that are difficult to diagnose. This listing is for a replacement 2011 Regal Body Control Module, part number 13578420, that is professionally programmed to be a direct, plug-and-play solution for your vehicle.
Why Choose Our Programmed 2011 Regal Body Control Module Service?
A new BCM from the dealership requires expensive programming with specialized tools to sync it with your vehicle’s unique VIN and security information. Our unique mail-in programming service eliminates this hassle and cost. We transfer the critical data from your original, faulty BCM directly onto this replacement unit. The result is a module that is ready for immediate installation, requiring no additional trips to the dealer or mechanic for programming. It’s the most efficient and cost-effective way to restore your car’s functionality.
From the Diagnostic Bay
We recently had a 2011 Buick Regal towed in with a classic case of BCM failure. The owner reported that the interior dome lights would randomly turn on while driving, the radio would shut off, and the battery would be dead every morning. They had already replaced the battery twice. After running diagnostics, we traced the parasitic draw back to the BCM, which wasn’t allowing the vehicle’s systems to properly go to sleep. Instead of a costly new module and dealer programming, we used our cloning service. We transferred the data from his old unit to a replacement, and he was able to install it himself in under an hour. The electrical gremlins were gone, and the car was back to being reliable.
Common Failure Symptoms
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on, flickering, or not working at all.
- ✔ The security system acting erratically or preventing the car from starting.
- ✔ False warnings appearing on the dashboard instrument cluster.
- ✔ Rapid battery drain when the vehicle is turned off (parasitic draw).
- ✔ Unresponsive key fob or remote entry functions.
- ✔ Issues with the heating and A/C blower motor or controls.
How Our Simple Programming Service Works
- ✔ Place Your Order: Purchase this BCM listing.
- ✔ We’ll Contact You: We will reach out to you with clear instructions and the shipping address for sending us your original module. Please ensure your contact information is up to date.
- ✔ Ship Your Original BCM: Securely package and mail your original BCM to our facility.
Vehicle and Part Number Compatibility
This module is a direct replacement for part number 13578420 and is also compatible with the following interchangeable part numbers:
- 13577850
- 13505326
- 13500384
- 13574844
- 13504004
- 13504494
This part is confirmed to fit the following vehicles:
- 2011 Buick Regal: Body Control (BCM); (LH dash), w/o opt AUA
- 2013 Chevrolet Cruze: Body Control (BCM); (LH kick panel), w/opt ATH
- 2011 Chevrolet Cruze: Body Control (BCM); (LH kick panel)
- 2010 Cadillac SRX: Body Control (BCM); (LH dash)
- 2010 Chevrolet Equinox: Body Control (BCM); (LH side dash), body control
- 2010-2011 GMC Terrain: Body Control (BCM); (LH side dash), body control
Post-Installation Procedures
While our goal is a seamless plug-and-play experience, certain vehicle systems may require a relearn procedure after the BCM is replaced. These can typically be performed with a high-level diagnostic scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, the ‘Setup SDM Primary Key in BCM’ procedure is necessary. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure the brake lights and traction control systems function correctly.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What exactly is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide range of non-engine related functions. This includes power windows, locks, lights, wipers, security systems, and more. It acts as a central hub for these electronic components.
Why do I need to send my original BCM to you?
Your original BCM contains your vehicle’s specific Vehicle Identification Number (VIN), security key data, and other settings. By cloning this data to the replacement unit, we make the new module plug-and-play, saving you from a costly and complicated programming procedure at a dealership.
How long does the programming service take?
Once we receive your original module, the cloning process is typically completed and the replacement module is shipped back out within 1-2 business days.
Is this a guaranteed fix for my vehicle’s problems?
This service corrects issues directly caused by a faulty BCM. While the symptoms listed are common indicators of BCM failure, it’s essential to have your vehicle properly diagnosed by a professional to rule out other potential causes like wiring or sensor issues.
What happens if I have an airbag light after installation?
An airbag light is a common occurrence after a BCM swap. It simply means the new module needs to be electronically introduced to the airbag system. A technician with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.