Tired of Unpredictable Electrical Problems in 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 reliable vehicle into a source of constant frustration. One minute your power windows work, the next they don’t. You might see random warning lights, experience security system lockouts, or have interior lights that have a mind of their own. These aren’t just annoyances; they’re classic symptoms of a BCM failure. The BCM is the central nervous system for your vehicle’s comfort and convenience features, and when it starts to fail, it can cause a cascade of baffling issues. This is where our simple, effective solution comes in.
We offer a professionally programmed 2014-2016 ELR Body Control Module that eliminates the guesswork and high costs associated with dealership repairs. Instead of buying a blank module and paying for towing and expensive programming sessions, you simply send us your original BCM. We transfer all the critical, vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. It arrives back at your door ready for a straightforward installation, restoring full functionality without the need for a trip to the dealer.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Cadillac SRX with a complaint that was driving them crazy: the radio would randomly shut off, the power liftgate would refuse to open, and the anti-theft light would flash intermittently. They had already replaced the battery and checked all the fuses. Diagnostics showed a series of communication error codes (U-codes) pointing to the BCM. Instead of a costly new module and programming from the dealer, we used this exact cloning service. The customer mailed in their module, we sent back the programmed replacement, and they installed it in their driveway. The electrical gremlins vanished immediately. It’s a perfect example of how this service saves hundreds of dollars and significant downtime.
Is Your Vehicle Showing These Symptoms?
A faulty BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The security system preventing the car from starting (flashing security light).
- ✔ Inconsistent horn or wiper operation.
- ✔ Dashboard warning lights appearing randomly, such as for the airbag or traction control system.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication, such as U0140.
A Straightforward Guide to Installation
Installing your programmed BCM is a manageable job for a DIY enthusiast or any professional mechanic. Just follow these general steps:
- Safety First: Always disconnect the negative terminal from your vehicle’s 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 cowl area. For other models, refer to the fitment list below for its location.
- Remove the Original Module: Carefully disconnect the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair. Please read the important post-installation notes below.
Important Post-Installation Notes
While our programming service makes this a near plug-and-play repair, some vehicle systems may require a recalibration after the BCM is replaced.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade diagnostic tool to sync the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be needed to ensure proper brake light and stability control function. This also typically requires a scan tool.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for your specific model or consult with a qualified automotive technician.
Verified Vehicle Compatibility
This module is a direct replacement for part number 13590173 and is compatible with several other part numbers. It is guaranteed to fit the following vehicles:
- 2014-2016 Cadillac ELR (Body Control, RH cowl)
- 2016 Cadillac ELR (Communication, RH engine compartment)
- 2014-2016 Cadillac SRX (Body Control, LH dash)
- 2014-2015 Buick LaCrosse (Body Control, LH kick panel)
- 2016 Buick LaCrosse (Body Control, LH kick panel, ID 13580698 or 13594564)
- 2014-2017 Buick Regal (Body Control, LH dash)
- 2014-2015 Chevrolet Malibu (Body Control, LH kick panel)
- 2016 Chevrolet Malibu Limited (VIN 1, Body Control, LH kick panel)
- 2014-2015 Chevrolet Volt (Body Control, RH engine compartment)
- 2014 Chevrolet Camaro (Body Control, RH dash, Convertible)
- 2015 Chevrolet Camaro (Body Control, RH dash)
- 2014-2016 Chevrolet Spark EV (Body Control, left lower a-pillar, electric model)
Compatible Part Numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, 13594564
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will provide instructions for shipping your original BCM to us. Once we receive it, our technicians will transfer its unique programming to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days.
Do I need to send my keys?
No. Because we are cloning your original module’s data, the replacement unit will already recognize your existing keys, saving you the hassle and expense of key reprogramming.
Is there a core charge?
No, there is no core charge for this service. We only need your original module for the data transfer, and you are welcome to keep it afterward.
Why is this better than buying a used BCM from a junkyard?
A used BCM from another vehicle will have the wrong VIN and security information. It will not work in your car without being completely wiped and reprogrammed by a dealer, which is a complex and costly process. Our cloning service ensures the module is a perfect match for your vehicle right out of the box.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is failing, we can still extract the necessary data. Please contact us with the specifics of your module’s condition before ordering if you suspect it is non-communicative.