Restore Your Vehicle’s Electronic Stability
Are you dealing with baffling electrical issues in your Cadillac ELR or other compatible GM vehicle? Intermittent power windows, flickering lights, strange security system alerts, or even a no-start condition can often be traced back to a single component: the Body Control Module (BCM). As the central nervous system for your car’s body electronics, a failing BCM can cause widespread and frustrating problems. This isn’t just an inconvenience; it can affect vehicle safety and security. We offer a dependable, straightforward solution to get your vehicle back to perfect working order without the hassle and high cost of dealership programming.
A Technician’s Notebook: The Case of the Phantom Faults
I remember a 2015 Cadillac SRX that came into my shop with a laundry list of complaints. The dome lights would stay on, the radio would randomly shut off, and the key fob worked only half the time. The customer had already replaced the battery, thinking it was a simple voltage issue. After connecting my scan tool, I saw a dozen communication error codes (U-codes) pointing to a network problem. Instead of chasing ghosts, I went straight to the BCM. These modules are the traffic cops for the vehicle’s data network. After confirming power and ground were good, it was clear the BCM itself was failing internally. By providing a cloned 2014-2016 ELR Body Control Module that also fit his SRX, we had him back on the road the same day—no complex programming, no dealer appointment needed. It’s a fix I’ve performed hundreds of times, and it always solves these specific network-related headaches.
Common Signs of a Failing BCM
If your vehicle is exhibiting any of these symptoms, a faulty Body Control Module is a likely culprit. A failing BCM can trigger various diagnostic trouble codes (DTCs), often related to communication errors like U0100, U0140, or specific component failures.
- ✔ Erratic or non-functional interior and exterior lights (headlights, taillights, dome lights).
- ✔ Power windows, locks, or mirrors operating intermittently or not at all.
- ✔ Malfunctioning keyless entry and security system alarms.
- ✔ Inaccurate gauge readings or warning lights on the instrument cluster.
- ✔ Vehicle failing to start due to anti-theft system engagement.
- ✔ Wipers or horn activating unexpectedly.
Our Simple, No-Hassle Programming Service
Forget about towing your car to the dealership and paying for expensive programming. Our service is designed to be as simple as possible. After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, our expert technicians will transfer all the critical data—including VIN, key information, and vehicle-specific settings—to this replacement module. We then ship the fully programmed module back to you, ready for installation. This process ensures a seamless, plug-and-play experience.
A Straightforward Guide to Installation
Installing your programmed 2014-2016 ELR Body Control Module is a manageable task for a confident DIYer or any professional mechanic. The BCM in the 2014-2016 ELR is typically located in the right-hand cowl area.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any work on the electrical system.
- Locate the BCM: On the ELR, access the BCM by removing the necessary panels in the right-hand cowl or passenger footwell area. For other models, refer to the fitment list for its location (e.g., LH kick panel for LaCrosse).
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Note their orientation. Then, unbolt the module from its mounting bracket and remove it from the vehicle.
- Install the New Module: Mount the replacement BCM onto the bracket and securely reconnect all the electrical connectors in their original positions.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions—lights, locks, windows, wipers, etc. Note that some relearn procedures may be necessary as detailed below.
Important Post-Installation Information
While our programming service makes this a near plug-and-play repair, some vehicle systems may require recalibration after the BCM is replaced. This is normal. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct brake light operation and to keep the traction control system functioning properly.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Will This Fit My Vehicle?
This BCM is a direct-fit replacement for a wide range of GM vehicles and part numbers. Please verify your part number or vehicle model against the list below to ensure compatibility. This module is compatible with part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13590851, 13591300, 13592376, 13593775, 13593776, and 13594564.
- Cadillac ELR: 2014-2016 (Body Control Module, RH cowl)
- Cadillac SRX: 2014-2016 (Body Control Module, LH dash)
- Chevrolet Volt: 2014-2015 (Body Control Module, RH engine compartment)
- Chevrolet Camaro: 2014-2015 (Body Control Module, RH dash)
- Chevrolet Malibu: 2014-2015 (Body Control Module, LH kick panel)
- Chevrolet Malibu Limited: 2016 (VIN 1, Body Control Module, LH kick panel)
- Chevrolet Spark EV: 2014-2016 (Body Control Module, left lower a-pillar, electric model)
- Buick LaCrosse: 2014-2016 (Body Control Module, LH kick panel)
- Buick Regal: 2014-2017 (Body Control Module, LH dash)
Frequently Asked Questions
Do I need to have this module programmed?
Do I need to have this module programmed?
No. This module comes pre-programmed to your vehicle using the data from your original BCM. This is a complete plug-and-play solution that allows you to avoid a trip to the dealership. We handle all the programming before we ship it to you.
What is the process for the programming service?
Do I need to have this module programmed?
No. This module comes pre-programmed to your vehicle using the data from your original BCM. This is a complete plug-and-play solution that allows you to avoid a trip to the dealership. We handle all the programming before we ship it to you.
Is there a core charge for my old BCM?
Do I need to have this module programmed?
No. This module comes pre-programmed to your vehicle using the data from your original BCM. This is a complete plug-and-play solution that allows you to avoid a trip to the dealership. We handle all the programming before we ship it to you.
What tools do I need for installation?
Do I need to have this module programmed?
No. This module comes pre-programmed to your vehicle using the data from your original BCM. This is a complete plug-and-play solution that allows you to avoid a trip to the dealership. We handle all the programming before we ship it to you.
Will this fix my specific problem?
Do I need to have this module programmed?
No. This module comes pre-programmed to your vehicle using the data from your original BCM. This is a complete plug-and-play solution that allows you to avoid a trip to the dealership. We handle all the programming before we ship it to you.