End the Frustrating Electrical Problems in Your GM Vehicle
Are you dealing with a vehicle that seems to have a mind of its own? One day the power windows refuse to work, the next the radio is acting up, and you’re constantly seeing strange warning lights on your dash. These aren’t just random annoyances; they’re classic signs of a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, a faulty BCM can cause a cascade of confusing issues. This isn’t just a part—it’s the solution to restoring order and reliability to your 2013-2017 Acadia, Traverse, Enclave, or other compatible GM model.
We take the biggest headache out of the repair process: programming. Simply provide us with your vehicle’s VIN after purchase, and we’ll program this BCM with the latest GM software specifically for your car or truck. It arrives at your door ready to be installed, saving you a costly trip to the dealership and eliminating the need for expensive scan tools for programming. This is the direct, professional-grade fix you’ve been looking for.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 GMC Acadia with a complaint that was driving them crazy. The interior lights would flicker intermittently, the remote key fob worked only half the time, and occasionally, the vehicle wouldn’t start at all, just a click. They had already replaced the battery to no avail. My initial scan showed a slew of communication error codes (U-codes) pointing to multiple systems. In my 20+ years of experience, this pattern doesn’t usually mean multiple parts have failed at once. It almost always points to the central hub—the BCM. We installed a VIN-programmed module just like this one, and every single electrical gremlin vanished. It’s a textbook example of how a failing BCM can mimic a dozen other problems.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. Replacing your 2013-2017 Acadia BCM can resolve these issues:
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or dashboard lights flickering or staying on.
- ✔ The security or anti-theft system preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Warning messages on the dash like “Service Stabilitrak” or “Service Traction Control.”
- ✔ Communication error codes (e.g., U0140, U0155) stored in the system.
- ✔ Problems with the heating and A/C controls.
A Straightforward Guide to BCM Installation
With our pre-programmed module, the physical swap is something a confident DIYer or any professional mechanic can handle. Here are the general steps:
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On most compatible models like the Acadia, Traverse, and Enclave, the BCM is located on the driver’s side, up under the dashboard to the left of the steering column.
- Remove Connectors: Carefully unplug the multiple wiring harness connectors from the old BCM. They have locking tabs that need to be depressed to be released. Do not force them.
- Swap the Module: Unbolt or unclip the old BCM from its mounting bracket and remove it. Install the new, pre-programmed module in its place.
- Reconnect Everything: Plug all wiring harnesses back into the new BCM until they click securely into place. Reconnect the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all functions—windows, locks, lights, radio, etc. Note the post-install procedures below, as some relearn steps may be required.
Important Post-Installation Information
While our programming handles the heavy lifting, some vehicle systems may require a final handshake with the new BCM. This is normal. You might need a professional scan tool for these final steps:
- Airbag System Sync: If the airbag light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the modules. This is a safety check to ensure the systems are communicating correctly.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure proper brake light and traction control operation.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This module, corresponding to part numbers 22915542 and 22820314, is a direct-fit replacement for the following vehicles:
- ACADIA 13-16 Body Control (BCM); (LH dash)
- ACADIA 17 Body Control (BCM); VIN J (11th digit, Limited), (LH dash)
- CAPTIVA SPORT 13-15 Body Control (BCM); (center dash)
- CTS 14 Body Control (BCM); SW, LH dash
- CTS 14 Body Control (BCM); Sdn, VIN D (4th digit, V-Series), LH dash
- CTS 14-15 Body Control (BCM); Cpe, LH dash
- ENCLAVE 13-17 Body Control (BCM); (LH dash)
- EXPRESS 1500 VAN 13-14 Body Control (BCM); (center dash)
- EXPRESS 2500 VAN 13-18 Body Control (BCM); (center dash)
- EXPRESS 3500 VAN 13-18 Body Control (BCM)
- IMPALA 13 Body Control (BCM); (LH dash), ID 22820314 or 22915542
- IMPALA 14-16 Body Control (BCM); VIN W (4th digit, Limited), (LH dash)
- SAVANA 1500 VAN 13-14 Body Control (BCM); (center dash)
- SAVANA 2500 VAN 13-18 Body Control (BCM); (center dash)
- SAVANA 3500 VAN 13-18 Body Control (BCM)
- TRAVERSE 13-17 Body Control (BCM); (LH dash)
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that acts as the central hub for most of your vehicle’s non-engine related electronic features. It controls things like power windows, locks, interior and exterior lighting, the security system, and even coordinates with other modules for functions like traction control.
Why do you need my VIN for programming?
Your Vehicle Identification Number (VIN) allows us to load the exact software and settings your specific vehicle model and options require. This ensures all features work correctly right out of the box and makes the installation process as close to plug-and-play as possible.
Is this something I can install myself?
For many DIYers with mechanical experience, this is a manageable job. The module is typically accessible under the dash. However, be aware that some post-installation sync procedures, like for the airbag system, may require a professional-level scan tool.
What if the airbag light comes on after I install it?
This is a normal possibility. It simply means the new BCM needs to be electronically introduced to the vehicle’s airbag module (SDM). A mechanic with a capable diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module, which saves you the time and expense of return shipping.