Restore Full Control Over Your Cadillac’s Electronics
Are you battling frustrating electrical gremlins in your 2003-2006 Cadillac Escalade ESV? Intermittent power windows, a malfunctioning security system, or dashboard lights that have a mind of their own are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics. When it fails, it can cause a cascade of confusing and annoying problems. This replacement module, part number 15136877, combined with our expert cloning service, is the most reliable and straightforward solution to get your luxury SUV back to perfect working order.
Unlike a standard pre-programmed module that may require additional dealer visits for key and security relearns, our Cloning Service makes this a true plug-and-play repair. We transfer the exact data from your original BCM—including the VIN, mileage, and security information—directly onto this replacement unit. This means no compatibility issues and no expensive post-installation programming. You get a module that is a perfect electronic match for your specific vehicle, ready to install right out of the box.
Case Study: A Tricky Diagnosis
I once had a 2005 Escalade ESV in the bay that was a diagnostic nightmare for another shop. The owner reported the radio would turn on by itself, the door locks would cycle randomly, and the HVAC blower was dead. They had already replaced the battery and checked all the fuses. From experience, I know that on these GMT800 platforms, a faulty BCM is a prime suspect for such widespread, unrelated electrical issues. After confirming solid power and ground connections to the module, we recommended our cloning service. By transferring the data from his old, failing BCM to a quality replacement, we solved all the issues in one go, saving the customer from a costly and time-consuming trip to the dealership.
Is Your Escalade Exhibiting These BCM Failure Symptoms?
- ✔️ Non-responsive or erratic power windows, door locks, or mirrors.
- ✔️ Interior or exterior lights that won’t turn on or off correctly.
- ✔️ Complete loss of HVAC controls or an intermittent blower motor.
- ✔️ An active airbag warning light, often with a DTC like B1001 (Setup SDM Primary Key in BCM).
- ✔️ The security system preventing the vehicle from starting (no-start condition).
- ✔️ Strange electrical behavior that seems to have no logical cause.
A Straightforward Guide to Installation
Replacing the BCM in your Escalade is a job most DIY enthusiasts can handle in under 15 minutes with basic tools. The module is typically located under the driver’s side dashboard, near the steering column.
- Step 1: Safety First Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Step 2: Locate the BCM Find the module under the dash. It will have several large electrical connectors attached to it.
- Step 3: Perform the Swap Carefully disconnect all electrical harnesses from the old BCM. Unbolt or unclip it from its mounting bracket and remove it. Install the new, cloned BCM in its place and securely reconnect all harnesses.
- Step 4: Reconnect and Verify Reconnect the negative battery terminal. Start your Escalade and test all functions—lights, windows, locks, HVAC, etc.—to confirm the repair was successful.
- Step 5: Post-Install Checks While our cloning service handles most programming, some vehicle systems may require a relearn. If your airbag light is on, a shop with a capable scan tool will need to perform the ‘Setup SDM Primary Key’ procedure. A ‘Brake Pedal Position Relearn’ may also be necessary on some models.
Verified Vehicle Compatibility
This BCM is a direct-fit replacement for the 2003-2006 Escalade ESV BCM and is also compatible with a wide range of other GM trucks and SUVs. It interchanges with numerous part numbers to ensure broad coverage.
Interchangeable Part Numbers: 10367690, 10383536, 15064149, 15116066, 15136225, 15136877, 15137393, 15137394, 15137395, 15137396, 15194170, 15198116, 15257043, 15257044, 15257045, 15257046
Fits Models Including:
- Cadillac Escalade, ESV, EXT (2003-2006)
- Chevrolet Avalanche 1500/2500 (2003-2006)
- Chevrolet Silverado & GMC Sierra 1500/2500/3500 (2003-2007 Classic)
- Chevrolet Suburban & GMC Yukon/Yukon XL (2003-2006)
- Chevrolet Tahoe (2003-2006)
- Hummer H2 (2003-2007)
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we perform a full data transfer from your original BCM to the replacement unit. This copies your vehicle’s specific VIN, security data, mileage, and programmed options, making the new module an exact electronic duplicate. This eliminates the need for any additional programming after installation.
Do I have to send you my original part?
Yes. For the cloning service to work, we need your original module to extract the necessary data. We will perform the service and send both your original module and the newly cloned replacement back to you.
Is there a core charge for this part?
No, there is absolutely no core charge. Your original module is required for the data transfer and will be returned to you along with the replacement part, so you don’t have to worry about core returns or fees.
Will this fix my airbag light?
It can, but it may require an additional step. If the airbag light is on after installation, it’s typically because the BCM needs to be synced with the airbag system’s Sensing and Diagnostic Module (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional scan tool to resolve this.
What if I install it and still have problems?
While a faulty BCM is very common, other issues like poor grounds, damaged wiring, or a failing component can cause similar symptoms. We recommend confirming your diagnosis or consulting with a professional mechanic. Our parts are fully tested and backed by a warranty for your peace of mind.