Restore Your Vehicle’s Electrical System with a Hassle-Free Solution
Are you dealing with baffling electrical problems in your GMC Terrain or other GM vehicle? Flickering lights, malfunctioning power windows, a security system that has a mind of its own, or even a vehicle that refuses to start can all point to one culprit: a failing Body Control Module (BCM). As an automotive technician with over two decades of experience, I’ve seen firsthand how a bad BCM can turn a reliable vehicle into a source of constant frustration. It’s the central command center for your car’s body electronics, and when it fails, chaos ensues.
Forget expensive dealership visits and the headache of programming a new module from scratch. This is a complete, ready-to-install solution. We simplify the process with our professional mail-in cloning service. Simply purchase this BCM, and we’ll contact you with instructions to ship your original module to our facility. Our expert technicians will then transfer all the critical data—including VIN, mileage, and key information—to this replacement unit. We ship it back to you, fully programmed and ready for a plug-and-play installation. It’s the most efficient and cost-effective way to get your vehicle back on the road and working correctly.
A Technician’s Notebook: The Case of the Erratic Equinox
A customer brought in a 2015 Chevy Equinox (which uses the same BCM as the Terrain) with a list of strange symptoms. The dome lights would stay on, the driver’s side window wouldn’t go down, and occasionally the horn would blare when they used the turn signal. They had already replaced the battery and checked fuses, but the gremlins persisted. After hooking up my pro-level scan tool, I found multiple communication error codes (U-codes) pointing to the BCM. Instead of a costly new module and hours of programming at the dealer, we used a cloned BCM. The physical swap took less than 30 minutes, and instantly, all the bizarre electrical issues were gone. This service saves both time and money, providing a reliable fix that shop owners and DIYers can trust.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a faulty Body Control Module is a likely cause. This programmed module is designed to resolve these exact issues.
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, door locks, or mirrors not working correctly or intermittently.
- ✔ The anti-theft or security system engaging randomly, causing a no-start condition.
- ✔ The horn honking unexpectedly or not working at all.
- ✔ Dashboard warning lights appearing for various systems without a clear cause.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-codes, stored in the system.
- ✔ Wipers activating on their own or not responding to the switch.
Your Straightforward BCM Installation Path
Our service makes this a simple two-part process. First, the mail-in service, then the physical installation. It’s designed to be as easy as possible.
- Place Your Order: After you complete your purchase, we will contact you with clear, step-by-step instructions for shipping your original BCM to our programming center. Please ensure your contact information is correct at checkout.
- We Program Your Module: Once we receive your original BCM, our technicians will professionally clone all necessary data to the replacement unit. This typically takes 1-2 business days.
- Receive Your Ready-to-Install BCM: We ship the programmed module back to you. Tracking information will be provided so you know exactly when it will arrive.
- Safety First: Before starting the physical installation, disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate and Remove the Old BCM: On most GMC Terrains and Chevy Equinoxes, the BCM is located on the left (driver’s) side of the dash. Carefully disconnect the wiring harnesses and remove the mounting bolts to take out the old module.
- Install the Programmed BCM: Mount the new, programmed BCM in place, secure it with the bolts, and reconnect all the wiring harnesses firmly.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, etc.—to confirm the repair was successful.
Important Post-Installation Information
In some cases, minor follow-up procedures may be needed. This is normal and depends on your vehicle’s specific configuration.
- Airbag System Sync: If the airbag warning light is on after installation, a “Setup SDM Primary Key in BCM” procedure is required. This must be done with a professional scan tool to sync the systems.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure proper brake light and traction control operation.
- No Core Charge: You can keep your old module, as there is no core charge or need to return it.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a qualified professional if you are unsure about any step.
Verified Compatibility for Your GM Vehicle
This BCM is a direct-fit replacement for the following vehicles and part numbers. Please verify your part number is on this list before ordering.
Part Numbers: 13584695, 13586273, 13580697, 13588447, 13589197, 13589324, 13589325
Compatible Models:
- 2013-2017 GMC Terrain: Body Control (BCM); (LH side dash), body control
- 2013-2017 Chevrolet Equinox: Body Control (BCM); (LH side dash), body control
- 2013-2017 Buick Verano: Body Control (BCM); (below center of dash)
- 2013 Chevrolet Volt: Body Control (BCM); (RH engine compartment), ID 13580697 or 13586273
- 2014-2015 Chevrolet Cruze: Body Control (BCM); (LH kick panel)
- 2016 Chevrolet Cruze: Body Control (BCM); (LH kick panel), VIN P (4th digit, Limited)
- 2013 Chevrolet Cruze: Body Control (BCM); (LH kick panel), w/o opt ATH
- 2013-2014 Buick Encore: Body Control (BCM); (LH side of dash)
- 2013 Chevrolet Malibu: Body Control (BCM); (LH kick panel)
- 2013 Buick Regal: Body Control (BCM); (LH dash)
- 2013 Cadillac SRX: Body Control (BCM); (LH dash)
- 2014-2015 Chevrolet Spark: Body Control (BCM); (left lower a-pillar), gasoline model
- 2013-2014 Chevrolet Orlando: Body Control (BCM); (below center console)
- 2013-2014 Chevrolet Trax: Body Control (BCM); (LH side of dash)
Frequently Asked Questions
How does the mail-in programming service work?
After your purchase, we will email you a prepaid shipping label and instructions. You’ll securely package your original BCM and send it to us. Once we receive it, we transfer the data to the new module and ship it back to you, ready for installation.
Why do I need to send in my original BCM?
Your original BCM contains unique data for your vehicle’s VIN, security system, and specific options. Cloning this data ensures the replacement module is a true plug-and-play solution, preventing the need for expensive dealer programming.
Is this GMC Terrain BCM difficult to install myself?
For someone with basic mechanical skills, the physical swap is straightforward. The BCM is typically located under the driver’s side dashboard and held in by a few bolts and electrical connectors. Our cloning service handles the complicated programming part for you.
What if my airbag light comes on after installation?
This can occasionally happen. It simply means the new BCM needs to be synced with the airbag system (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ can be performed by any professional shop with a compatible scan tool to resolve this.
Do I need to return my old BCM after I receive the new one?
No. This service has no core charge. Once we have cloned the data from your original module, you are free to keep it.