Restore Full Functionality to Your Cadillac
Are you dealing with baffling electrical issues in your 2010 Escalade EXT? One moment the power windows work, the next they don’t. Maybe the radio is acting up, the security light is flashing, or you’re experiencing intermittent no-start conditions. These are classic signs of a failing Body Control Module (BCM), the central nervous system for your vehicle’s electronics. A faulty BCM can turn your luxury truck into a source of daily frustration. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
We offer a reliable, straightforward solution. This is a genuine GM Body Control Module, compatible with part number 20935349 and many others. The best part? It arrives at your door ready to install thanks to our professional cloning service. We transfer the exact data from your original BCM to this replacement unit. This means no expensive trips to the dealership for programming, saving you time and money. Simply provide your VIN after purchase, send us your original module, and we’ll handle the rest, ensuring a seamless repair.
From the Diagnostic Bay
I remember a 2010 Escalade that came into the shop with a laundry list of complaints from the owner. The dome lights would stay on, the driver’s side door lock was unresponsive, and the remote start worked only half the time. Initial scans showed a dozen communication error codes (U-codes), pointing fingers everywhere. A less experienced tech might have started replacing components one by one. However, after 20 years of seeing this, my gut pointed to the BCM. A failing BCM acts like a bad switchboard operator, sending scrambled signals. We confirmed it was the source of the communication breakdown. Installing a cloned 2010 Escalade EXT BCM like this one resolved all the issues in one shot, saving the customer hundreds in unnecessary diagnostic time and parts.
Signs Your Escalade’s BCM is Failing
A failing BCM can manifest in numerous ways, often seeming unrelated. If you’re experiencing any of the following, your BCM is the likely culprit:
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is illuminated or flashing, preventing the engine from starting.
- ✔ Dashboard warning lights appearing for no reason (e.g., ABS, Airbag, Traction Control).
- ✔ Remote keyless entry (RKE) failing to work consistently.
- ✔ Communication Diagnostic Trouble Codes (DTCs) such as U0100, U0140, or other U-series codes stored in various modules.
- ✔ Problems with the HVAC (climate control) system.
Your Straightforward BCM Installation Guide
Installing your cloned BCM is a manageable task for a confident DIYer. The module is typically located under the steering column on the driver’s side. Always consult a service manual for your specific vehicle’s procedure.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all systems to power down completely.
- Locate the BCM: On the 2010 Escalade EXT, find the BCM mounted under the driver’s side dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, cloned BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place. Reinstall any trim panels you removed.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘ON’ position (without starting) and test all body functions: lights, locks, windows, radio, etc. Start the vehicle to ensure it runs correctly.
- Perform Relearns (If Needed): In some cases, you may need to perform a post-installation procedure like an Airbag System Sync or Brake Pedal Position Relearn if specific warning lights are on.
Will This Fit My Vehicle?
This BCM is a direct-fit replacement for a wide range of General Motors vehicles. It is crucial to match your original part number to the list below or confirm compatibility with your specific model. This module is a replacement for part number 20935349 and interchanges with the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
It is verified to fit models such as the Cadillac Escalade, Escalade ESV, Escalade EXT, CTS, DTS, SRX, STS; Chevrolet Avalanche, Caprice, Captiva Sport, Equinox, Express, Impala, Monte Carlo, Suburban, Tahoe, Traverse; GMC Acadia, Savana, Yukon, Yukon XL; Buick Enclave, Lucerne; Hummer H2; Pontiac G8, Torrent; and Saturn Outlook & Vue within specific year ranges and options. Please review the full fitment list provided on this page to ensure it matches your exact vehicle.
Post-Installation Procedures
Post-Installation Procedures
Our cloning service makes this a near plug-and-play repair. However, due to the complexity of modern vehicle systems, some models may require one of the following procedures using a professional scan tool:
Frequently Asked Questions
Post-Installation Procedures
Our cloning service makes this a near plug-and-play repair. However, due to the complexity of modern vehicle systems, some models may require one of the following procedures using a professional scan tool:
How does the cloning service work?
After you place your order, you will ship your original BCM to us. We use specialized equipment to read the unique data from your module—including VIN, mileage, and key information—and transfer it directly to the replacement unit. We then ship both your original module and the ready-to-install replacement back to you.
Why do you need my original BCM?
Cloning the data from your original module is the most effective way to ensure a seamless installation without the need for additional programming at a dealership. This process preserves all your vehicle’s specific settings and security information.
Will I get my old module back?
Yes, absolutely. We always return your original module along with the newly programmed replacement. We do not keep customer cores for this service.
Is this a difficult part to install myself?
For someone with moderate mechanical skill, it’s a very manageable job. The main challenge is typically accessing the module under the dashboard. By ordering a cloned unit, you avoid the most difficult part of the process: the complex computer programming.
What happens if my airbag light comes on after installation?
This can happen on some models. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.