Restore Full Functionality to Your Cadillac ELR
If you’re dealing with baffling electrical issues in your 2014-2016 Cadillac ELR—like power windows that won’t cooperate, interior lights with a mind of their own, or warning messages that appear for no reason—you’re likely facing a failing Body Control Module (BCM). As the central command for your vehicle’s comfort and convenience features, a faulty BCM can create a cascade of frustrating problems. This isn’t just an inconvenience; it can affect vehicle security and safety systems. We offer a reliable, straightforward solution that gets you back on the road without the exorbitant costs and delays of a dealership visit.
Our service provides a replacement ELR Body Control Module that is professionally programmed using the data from your original unit. This cloning process is essential because the BCM is tied to your vehicle’s specific VIN and optional features. By transferring this critical information, we ensure the replacement module is a true plug-and-play component for your vehicle. Simply purchase this service, send us your original BCM, and we’ll handle the complex programming. We then ship the ready-to-install module back to you, eliminating any need for on-car programming with expensive scan tools.
Case Study: A Tricky Diagnosis
I remember a 2015 ELR that came into the shop with a laundry list of phantom issues. The owner reported the radio would randomly shut off, the driver’s side door wouldn’t unlock with the fob, and the anti-theft light would flash intermittently, sometimes preventing the car from starting. He’d been to two other shops that couldn’t find the root cause. After running a network scan, I saw multiple U-codes (U0140, U0155) pointing to a loss of communication with the BCM. Instead of just replacing it and sending him to the dealer for a $300+ programming fee, we used a cloned module. The swap took 20 minutes, and every single electrical gremlin was gone. It’s a perfect example of how a failing ELR Body Control Module can mimic a dozen other problems.
Common Signs of a Failing BCM
- ✔️ Power windows, door locks, or mirrors operate erratically or not at all.
- ✔️ Interior dome lights, dash lights, or exterior lamps flicker or fail to turn on/off.
- ✔️ The vehicle’s security system engages randomly, preventing the car from starting.
- ✔️ Horn or windshield wipers activate unexpectedly.
- ✔️ Diagnostic trouble codes (DTCs) related to communication loss, such as U0140, are present.
- ✔️ Warning lights for the airbag or traction control system are illuminated on the dash.
A Straightforward Guide to BCM Installation
- âś” Safety First: Disconnect the negative terminal from your vehicle’s 12V battery and secure it to prevent accidental contact.
- âś” Locate the BCM: On the 2014-2016 Cadillac ELR, the Body Control Module is located behind the right-hand side of the cowl/dash area. Access may require removing a trim panel.
- âś” Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. Press the release tabs firmly to avoid damaging the clips. Once disconnected, unbolt or unclip the module from its mounting bracket.
- âś” Install the New Module: Mount the replacement module you received from us in the same location and securely reconnect all electrical connectors.
- âś” Reconnect Power: Reattach the negative battery terminal.
- ✔ Final System Checks: Start the vehicle and test all body functions—windows, locks, lights, wipers, etc. Note that some post-install procedures may be required as outlined below.
Important Post-Installation Information
While our programming makes this a plug-and-play repair, some GM vehicles require a final handshake between modules after installation. Be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control operation.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult a qualified technician if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles and part numbers. Please verify your part number is on this list before ordering.
Compatible Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
- Cadillac ELR: 2014-2016 (Body Control, RH cowl)
- Cadillac SRX: 2014-2016 (Body Control, LH dash)
- Buick LaCrosse: 2014-2016 (Body Control, LH kick panel)
- Buick Regal: 2014-2017 (Body Control, LH dash)
- Chevrolet Camaro: 2014-2015 (Body Control, RH dash)
- Chevrolet Malibu: 2014-2015 & 2016 Limited (Body Control, LH kick panel)
- Chevrolet Spark EV: 2014-2016 (Body Control, left lower a-pillar)
- Chevrolet Volt: 2014-2015 (Body Control, RH engine compartment)
How does the mail-in programming service work?
How does the mail-in programming service work?
After you place your order, we will provide you with instructions to ship your original BCM to us. Once we receive it, we transfer its unique data to the replacement unit. We then ship the fully programmed, ready-to-install module back to you, typically within 1-2 business days of receiving your original.
Do I need to do any programming myself?
No. The main programming is completed by us before we ship the module to you. This service allows you to avoid expensive dealer-specific tools. However, as noted, some vehicles may require a minor ‘relearn’ or ‘sync’ procedure for the airbag or brake pedal sensor, which can be done with a common professional scan tool.
Is there a core charge for this part?
No, there is no core charge. We only need your original module to clone the data. We will return your original, non-functional module along with the programmed replacement.
Will this fix the specific issues my car is having?
This ELR Body Control Module will resolve issues directly caused by a faulty BCM. If your vehicle exhibits several of the symptoms listed, such as erratic lights, lock failures, and communication codes, it is highly likely that this is the solution. Proper diagnosis is always recommended.