Restore Your Vehicle’s Electrical System with a Plug-and-Play BCM
If your 2010-2011 GMC Terrain is plagued by bizarre electrical issuesāflickering lights, malfunctioning power windows, a dead instrument cluster, or even a no-start conditionāa failing Body Control Module (BCM) is the likely culprit. As a technician with over two decades of experience, I’ve seen how a faulty BCM can turn a reliable vehicle into a source of constant frustration. This isn’t just an inconvenience; it can affect safety systems like your airbags and traction control. Forget the expensive dealership visit and the hassle of programming. We offer a straightforward, reliable solution: a replacement BCM programmed specifically for your vehicle.
How Our Simple Cloning Service Works
Our process is designed to get you back on the road with minimal downtime. After your purchase, we’ll provide instructions for you to ship your original BCM to our facility. Once we receive it, our experts will extract the unique dataāwhich includes vital information like your vehicle’s VIN, key programming, and specific optionsāand flash it onto this replacement module. We then ship the fully programmed, plug-and-play unit back to you. This means no additional programming or trips to the mechanic are required for the module itself. It’s the most efficient way to replace a faulty 2010-2011 Terrain BCM.
A Technician’s Notebook: The Case of the Confused Terrain
A customer brought in a 2011 GMC Terrain that was driving them crazy. The radio would turn on and off by itself, the turn signals worked intermittently, and the security light would stay on, preventing the car from starting. They had already replaced the battery and checked all the fuses. On the scan tool, I saw a storm of communication error codes (U-codes) pointing to a network issue. After isolating other modules, all signs pointed to the BCM. Instead of a new, unprogrammed unit from the dealer which would have added hundreds in programming fees, we used a cloned BCM. The customer mailed us their original module, we programmed the replacement, and sent it back. They plugged it in, and every single electrical gremlin vanished. Itās a perfect example of how the right part and process can save hundreds of dollars and headaches.
Common Signs of a Failing BCM
- ā Erratic or non-functional interior and exterior lights.
- ā Power windows, locks, or mirrors not working correctly.
- ā The security system preventing the vehicle from starting.
- ā Instrument cluster gauges behaving abnormally or not working at all.
- ā Warning lights for ABS, Airbags, or Traction Control staying illuminated.
- ā A flurry of communication-related Diagnostic Trouble Codes (DTCs), such as U0100, U0140, or U0155.
- ā Inconsistent A/C and climate control operation.
A Straightforward Guide to Installation
- ā Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ā Locate the BCM: On the 2010-2011 Terrain, the BCM is typically located on the left (driver’s) side of the dash, often behind the lower dash panel or kick panel.
- ā Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- ā Install the New Module: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical harnesses. Ensure they click into place.
- ā Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- ā Test Functionality: Start the vehicle and test all the functions controlled by the BCM: lights, windows, locks, wipers, and radio to confirm the repair.
Important Post-Installation Information
While our BCM comes ready to run, certain vehicle safety systems may require a ‘handshake’ with the new module. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light and traction control functionality.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, and 13578420. It is guaranteed to fit the following vehicles:
- 2010-2011 GMC Terrain – Body Control (BCM); (LH side dash)
- 2010 Chevrolet Equinox – Body Control (BCM); (LH side dash)
- 2010 Cadillac SRX – Body Control (BCM); (LH dash)
- 2011 Buick Regal – Body Control (BCM); (LH dash), w/o opt AUA
- 2011-2013 Chevrolet Cruze – Body Control (BCM); (LH kick panel)
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we transfer the exact software and vehicle-specific data (like VIN, mileage, and key information) from your original BCM to this replacement unit. This makes the new module a perfect electronic match for your vehicle, eliminating the need for expensive dealer programming.
Do I need to send my original part to you?
Yes. For the cloning service to work, you must ship your original BCM to us. We will contact you with shipping instructions immediately after your purchase. Please ensure your contact information is correct at checkout.
Is this a difficult part for a DIYer to install?
The physical replacement is generally straightforward for someone with basic mechanical skills. It involves removing a few dash panels and unplugging connectors. Since our module is pre-programmed, you avoid the most complex part of the job.
What if my airbag light comes on after I install it?
This is a normal possibility. The new BCM needs to be electronically introduced to the airbag’s Supplemental Deployment Module (SDM). A repair shop with a professional bidirectional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is there a core charge for my old BCM?
No, there is no core charge. After we have cloned the data from your original BCM, you are welcome to keep it.