Restore Your Cadillac’s Functionality with a Seamless BCM Solution
Are you battling frustrating and unpredictable electrical issues in your Cadillac ELR or other compatible GM vehicle? Problems like flickering interior lights, unresponsive power windows, erratic dashboard warnings, or even a no-start condition can often be traced back to a single, critical component: the Body Control Module (BCM). As an experienced technician, I’ve seen firsthand how a failing BCM can turn a reliable vehicle into a source of constant headaches. It acts as the central hub for your car’s comfort and convenience features, and when it malfunctions, the symptoms can be widespread and confusing.
This isn’t just a replacement part; it’s a comprehensive solution. We offer a professional cloning service for your 2014-2016 ELR Body Control Module. This process eliminates the need for expensive and time-consuming dealership visits for programming. Simply send us your original BCM, and we will transfer all its vital data—including VIN, security information, and specific vehicle options—to this fully tested replacement unit. The module you receive back will be 100% plug-and-play, ready to install and restore your vehicle’s electronics to perfect working order.
Case Study: A Tricky Diagnosis
I remember a 2015 Cadillac SRX that came into the shop with a laundry list of bizarre symptoms. The radio would randomly shut off, the dome lights would stay on, and occasionally, the vehicle wouldn’t recognize the key fob. The owner had already replaced the battery and checked all the fuses. After connecting my scan tool, I found multiple ‘U’ codes, specifically U0140 (Lost Communication With Body Control Module). This pointed directly to an internal BCM failure. Instead of a costly new module and programming at the dealer, we used this exact cloning service. The customer shipped us their faulty BCM, we transferred the data, and sent back the ready-to-install replacement. The install took them less than an hour, and every single electrical gremlin was gone. It’s a powerful fix that saves hundreds of dollars and significant downtime.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM could be the culprit. A failing module often won’t store a specific trouble code, but you may see communication errors (U-codes) when scanned with a professional tool.
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Dash lights, headlights, or interior lights flickering or staying on.
- ✔ Security system acting erratically or preventing the car from starting.
- ✔ Horn, wipers, or radio functioning incorrectly or not at all.
- ✔ Communication error codes like U0140, U0155, or U0100 stored in other modules.
- ✔ Inconsistent A/C and climate control operation.
A Straightforward Guide to Installation
Installing your newly programmed BCM is a manageable task. For the 2014-2016 Cadillac ELR, the BCM is located in the right-hand (passenger side) cowl area. Always consult a vehicle-specific service manual for precise instructions.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to ensure all systems are powered down.
- Locate the BCM: On your ELR, access the right-hand cowl area. This may require removing trim panels or the glove box for clear access.
- Disconnect Connectors: Carefully unclip all electrical harness connectors from the old BCM. They have locking tabs, so be gentle to avoid damage.
- Remove the Old Module: Unbolt the original BCM from its mounting bracket. Keep track of any bolts or fasteners.
- Install the New Module: Mount your new, programmed BCM in place and secure it with the original hardware.
- Reconnect Everything: Firmly plug all electrical connectors into the new BCM. You should hear a ‘click’ as they lock. Reconnect the vehicle’s battery.
- Test Functionality: Start the vehicle and test all body functions—windows, locks, lights, radio, etc.—to confirm the repair.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a relearn procedure after the BCM is replaced. This is normal behavior for modern vehicles.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the BCM with the airbag module (SDM) and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Verified Vehicle Compatibility
This BCM and programming service is compatible with a wide range of General Motors vehicles. Please verify your part number is on this list. Your BCM must match one of the following part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, or 13594564.
- Cadillac ELR: 2014-2016 (Body Control or Communication)
- Cadillac SRX: 2014-2016
- Chevrolet Camaro: 2014-2015
- Chevrolet Malibu: 2014-2015, 2016 (Limited)
- Chevrolet Spark EV: 2014-2016
- Chevrolet Volt: 2014-2015
- Buick LaCrosse: 2014-2016
- Buick Regal: 2014-2017
Frequently Asked Questions
How does the programming service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, we transfer the data to the replacement module and ship it back to you, typically within 1-2 business days. Tracking will be provided.
Is this truly plug-and-play?
Yes, for over 99% of installations. Because we clone your original module’s data, the replacement BCM is recognized by your vehicle’s other computers, eliminating the need for dealer programming. In rare cases, a simple relearn procedure may be needed as described above.
Do I need to send my keys or any other parts?
No, we only need your original Body Control Module. All the necessary security information is contained within the module itself.
What happens if the airbag light comes on?
This is a known possibility and is not a defect. It simply means the BCM and the Sensing and Diagnostic Module (SDM) need to be re-synced. This is a quick procedure called ‘Setup SDM Primary Key in BCM’ that can be performed by any competent shop with a professional scan tool.
Is there a core charge?
No, there is no core charge for this service. You can keep your original, non-working module.