Restore Full Functionality to Your GM Vehicle with a Plug-and-Play BCM
If you’re dealing with a cascade of bizarre electrical problems in your 2015 Cadillac Escalade, you’re not alone. One minute the power windows work, the next they don’t. The radio might shut off randomly, or you’re seeing warning lights on the dash that have no obvious cause. These frustrating, intermittent issues often point directly to a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can make your luxury vehicle feel unreliable. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
We offer a straightforward, reliable solution. This is a replacement Body Control Module, part number 13506936, that comes ready for installation through our professional cloning service. You simply send us your original BCM, and we transfer all the critical vehicle-specific data—including VIN, mileage, and key programming—to this replacement unit. The result is a true plug-and-play module that eliminates the need for expensive dealership programming and lengthy vehicle downtime.
From the Diagnostic Bay
I remember a 2015 Yukon Denali rolling into the shop with a laundry list of complaints from the owner. The power liftgate would open on its own, the interior lights would flicker, and the vehicle would occasionally refuse to start. The initial scan showed a dozen communication error codes (U-codes) pointing to a network failure. Instead of chasing each individual symptom, experience told me to look at the network’s hub: the BCM. After confirming power and ground were solid, we identified the BCM as the source of the data corruption. A cloned BCM like this one had the truck back in perfect order in under an hour of shop time, saving the customer hundreds compared to the dealership quote.
Is Your Escalade Exhibiting These BCM Issues?
A failing BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your Body Control Module needs attention:
- ✔ Erratic power window or door lock operation
- ✔ Interior or exterior lights not working correctly or staying on
- ✔ Malfunctioning remote keyless entry or push-to-start system
- ✔ Instrument cluster gauges behaving erratically or going dark
- ✔ False security system alarms or activation
- ✔ Communication Diagnostic Trouble Codes (DTCs), such as U0140, U0155, or other U-series codes, indicating a loss of communication with the BCM.
- ✔ Unexplained battery drain when the vehicle is off
Your Straightforward BCM Installation Guide
Installing your pre-programmed BCM is a manageable task for a confident DIYer or any professional technician. While the exact location can vary by model, here is a general guide.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronic components.
- Locate the BCM: On most 2015 GM trucks and SUVs like the Escalade, Tahoe, and Sierra, the BCM is located under the driver’s side of the dashboard, often near the steering column. On other models like the Corvette or CTS, it may be in the LH dash area or on a firewall/hinge pillar. A quick search for your specific model will confirm the location.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the BCM. Use a trim removal tool to avoid breaking clips.
- Disconnect and Remove: The BCM has several large multi-pin electrical connectors. Carefully press the release tabs and pull the connectors straight out. Then, unbolt or unclip the module from its mounting bracket and remove it from the vehicle.
- Install the New BCM: Mount the replacement BCM in the same location and reconnect all electrical connectors, ensuring they click securely into place.
- Post-Installation Steps: Reinstall any trim panels and reconnect the battery. Start the vehicle and test all functions (lights, windows, locks, etc.). Note that some vehicles may require additional relearn procedures as outlined below.
Important Post-Installation Information
Our cloning service handles the vast majority of the setup. However, in some cases, your vehicle’s other modules may need to re-synchronize 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 professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the airbag system with the BCM.
- Brake Pedal Position Relearn: To ensure proper brake light and stability control function, a brake pedal position sensor relearn might be required on certain models.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Verified Fitment for Your GM Vehicle
This BCM is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. It is confirmed to fit the following vehicles:
- 2015 Cadillac ATS, CTS, Escalade, Escalade ESV, XTS
- 2016 Cadillac ATS, CTS (with ID 13587704)
- 2015 Chevrolet Corvette, Silverado 1500/2500/3500, Suburban 1500, Tahoe
- 2015-2016 Chevrolet Impala (New Style)
- 2015-2018 Chevrolet Sonic
- 2015 GMC Sierra 1500/2500/3500, Sierra Denali 1500/2500/3500, Yukon, Yukon XL 1500
Frequently Asked Questions
How does the programming service work?
After you purchase, we will provide you with instructions to ship your original BCM to us. Once we receive it, our technicians will transfer the vehicle-specific data to the replacement module and ship it back to you, typically within 1-2 business days.
Is this a plug-and-play solution?
Yes, for over 95% of vehicles. Because we clone your original data, no additional programming is typically required. You just install it and go. In rare cases, a simple relearn procedure for the airbag or brake pedal sensor may be needed.
Do I need to send my keys with the module?
No. Since we are cloning all the data from your original BCM, the security information that recognizes your existing keys is transferred over. Your current keys will work perfectly.
What if my original BCM is completely dead or not communicating?
In many cases, even if the BCM is not functioning in the vehicle, we can still extract the necessary data from the memory chip. Please contact us before ordering if your module is severely damaged by water or fire.
Is there a core charge for this 2015 Escalade BCM?
No, there is no core charge. Our service is based on cloning your original module’s data, so you will need to send it to us, but you do not need to pay an extra deposit.