Restore Full Functionality to Your Cadillac ELR
As a technician with over two decades of experience, I’ve seen firsthand how a failing Body Control Module (BCM) can turn a sophisticated vehicle like the 2014-2016 Cadillac ELR into a source of constant frustration. You’re likely dealing with a cascade of bizarre electrical problems—from windows that won’t roll down to a security system that prevents the car from starting. The BCM is the central nervous system for your car’s body electronics, and when it fails, chaos ensues. This isn’t just an inconvenience; it can be a significant safety and reliability issue.
Forget the exorbitant dealership quotes and the hassle of scheduling programming appointments. We offer a straightforward, reliable solution: a replacement BCM programmed with your vehicle’s exact data. By cloning the information from your original module, we ensure the replacement unit is a true plug-and-play component, restoring your car’s features and security settings precisely as they were from the factory.
From the Diagnostic Bay: The Ghost in the ELR
I remember a 2015 ELR that came into the shop with what the owner called “electrical ghosts.” The interior lights would flicker randomly, the radio would shut off, and occasionally, the power locks would cycle on their own. We checked the battery, grounds, and scanned for codes, but everything seemed inconsistent. After ruling out wiring issues, we focused on the BCM. These modules manage so many circuits that internal logic failures can create symptoms that seem completely unrelated. By swapping in a cloned 2014-2016 ELR Body Control Module, all the phantom issues vanished instantly. It’s a classic case where the central controller was the root cause of widespread, confusing symptoms.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security system light stays on, or the vehicle won’t start (anti-theft active).
- ✔ Warning lights for the airbag or traction control system appear on the dash.
- ✔ Intermittent operation of the horn, wipers, or climate control fans.
- ✔ Communication failure codes, such as U0140, indicating the BCM is not responding.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s 12V battery before starting any electrical work.
- ✔ Locate the BCM: On the 2014-2016 ELR, the Body Control Module is typically located in the right-hand (passenger side) cowl area. You may need to remove trim panels for access.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the module. Press the release tabs firmly to avoid damaging them. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Seat the replacement BCM into the mounting bracket and secure it. Reconnect all electrical connectors, ensuring they click firmly into place.
- ✔ Reconnect Battery: Reattach the negative battery terminal.
- ✔ Perform Post-Install Checks: Start the vehicle and test all body functions (lights, locks, windows, etc.). Note that some relearn procedures may be necessary as outlined below.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a handshake with the new BCM. Please be aware of the following potential procedures:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure correct brake light operation and to satisfy the traction control system.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for part number 13589637 and is compatible with a wide range of GM vehicles. Please verify your part number or match your vehicle from the list below. This module fits units with part numbers: 13580698, 13578458, 13589115, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564.
- Cadillac ELR: 2014-2016 (BCM at RH cowl, or Communication module at RH engine compartment for 2016)
- Cadillac SRX: 2014-2016 (LH dash)
- Buick LaCrosse: 2014-2016 (LH kick panel)
- Buick Regal: 2014-2017 (LH dash)
- Chevrolet Camaro: 2014-2015 (RH dash)
- Chevrolet Malibu: 2014-2015 & 2016 Limited (LH kick panel)
- Chevrolet Volt: 2014-2015 (RH engine compartment)
- Chevrolet Spark EV: 2014-2016 (Electric model, left lower A-pillar)
Frequently Asked Questions
How does this programming service work?
It’s simple. After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer all the critical data to the replacement module and ship it back to you, typically within 1-2 business days. This ensures a perfect match for your vehicle’s VIN and options.
What if my original BCM is completely dead or unreadable?
In most cases, even with significant internal failure, we can still extract the necessary data. If for some reason your module’s data is completely corrupted and unrecoverable, we will contact you to discuss options, which would include a full refund.
Do I need to do anything after installing the new BCM?
Because the module is cloned, no initial programming is required. However, as noted above, you may need to perform a ‘Setup SDM Primary Key’ procedure if the airbag light is on, or a ‘Brake Pedal Position Relearn’. These are simple procedures for any shop with a capable scan tool.
Is there a core charge for my old module?
No, there is no core charge. We need your original module to perform the cloning service, but you do not need to send it back to us again after you receive the programmed replacement.
Which part number should I match?
This module, 13589637, replaces a range of part numbers listed in the description. As long as your original module carries one of the listed part numbers, this service is compatible with your vehicle.