Restore Your Vehicle’s Core Functions and End Electrical Frustration
Are you dealing with baffling electrical issues in your GMC Terrain, Equinox, or other compatible GM vehicle? Flickering lights, unresponsive power windows, a dead radio, or a security system that acts on its own are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can turn your daily drive into a constant source of annoyance. This isn’t just an inconvenience; it can affect safety systems and vehicle security. This listing offers a reliable, straightforward solution: a replacement BCM, programmed specifically for your vehicle.
Our unique cloning service makes this the most efficient BCM replacement available. Instead of paying for expensive dealership programming and diagnostics, you simply send us your original BCM. We transfer all the critical data—including VIN, mileage, and key information—to this replacement unit. The result? A true plug-and-play module that restores full functionality right out of the box. This process ensures seamless integration with your vehicle’s existing systems, getting you back on the road with confidence.
A Technician’s Notebook: The Ghost in the Machine
A customer brought in a 2011 Terrain with a laundry list of bizarre symptoms: the dome light wouldn’t turn off, the driver’s side window worked intermittently, and the remote key fob was useless. They had already replaced the battery and checked fuses, but the problems persisted. After connecting my scan tool, I saw multiple communication loss codes (U-codes) pointing back to the BCM. These modules are the nerve center, and when they fail, they send chaotic signals everywhere. We confirmed the BCM was the culprit. By using a cloned module, we had the vehicle fixed and back to the customer the same day they got the part, completely avoiding the multi-day wait and high cost of ordering and programming a new one from the dealer. It’s the most effective fix for these exact scenarios.
Common Signs of a Failing BCM
If your vehicle is exhibiting these symptoms, a faulty Body Control Module is the likely cause. Replacing your failing unit with our programmed 2010-2011 Terrain BCM is the definitive solution.
- ✔ Power windows, locks, or mirrors not working or operating erratically.
- ✔ Interior or exterior lights staying on or not turning on at all.
- ✔ The anti-theft system preventing the car from starting (security light on).
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Instrument cluster gauges behaving strangely or warning lights illuminating for no reason.
- ✔ Communication error codes, such as U0140, U0155, or U0100, stored in the system.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is designed to be a simple process. In most of these GM vehicles, the BCM is located on the driver’s side, either behind the lower dash panel or in the kick panel area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electrical components.
- Locate the BCM: On the 2010-2011 Terrain, you’ll typically find the BCM on the left (driver’s) side of the dash. You may need to remove a lower dash or kick panel for access.
- 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.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal. Your vehicle is now ready to start with its new BCM.
- Post-Install Checks: After starting the vehicle, check all body functions (lights, locks, windows, etc.). Note that some vehicles may require the post-installation procedures listed below.
Important Post-Installation Information
While our cloning service makes this a plug-and-play part, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal and can often be done with a capable bidirectional scan tool.
- 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 and is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and to prevent issues with the traction control system.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Will This Fit My Vehicle?
This BCM is a direct-fit, programmed replacement for a range of GM vehicles and part numbers. Please verify your vehicle and original part number against this list for guaranteed compatibility.
- Compatible Part Numbers: 13577850, 13505326, 13500384, 13574844, 13504004, 13504494, 13578420
- Buick Regal: 2011 (LH dash, w/o opt AUA)
- Cadillac SRX: 2010 (LH dash)
- Chevrolet Cruze: 2011, 2013 (LH kick panel)
- Chevrolet Equinox: 2010 (LH side dash)
- GMC Terrain: 2010-2011 (LH side dash)
Frequently Asked Questions
How does the programming service work?
After you purchase, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer all of its data to the replacement BCM and ship it back to you the same or next business day. This makes the new part plug-and-play.
Do I need to send my original BCM if it’s completely dead?
In most cases, even if the BCM has failed, we can still extract the necessary data for the cloning process. Please contact us if you have concerns about the condition of your module.
Is there a core charge for this part?
No, there is no core charge. We need your original module to perform the programming service, after which you can keep it.
Will this fix my specific problem?
This part corrects issues caused by a faulty BCM. If you’re experiencing problems like erratic lights, non-working power accessories, or security system faults, this is very likely the solution. Proper diagnosis is always recommended.
What tools are needed for the post-installation procedures?
The Airbag System Sync and Brake Pedal Position Relearn procedures require a professional-grade bidirectional scan tool. Many independent repair shops have this equipment if you are unable to perform the procedures yourself.