Restore Control and End Electrical Chaos in Your GM Vehicle
Are you battling bizarre electrical issues in your 2010 Cadillac Escalade or another GM vehicle? Flickering lights, malfunctioning power windows, a security system that acts on its own, or a dashboard that lights up like a Christmas tree are classic signs of a failing Body Control Module (BCM). As the central command center for your vehicle’s electronics, a faulty BCM can turn your reliable ride into a source of constant frustration. Don’t replace parts randomly hoping for a fix. This is a direct-fit solution for your vehicle, designed to restore full functionality and peace of mind.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a professional Cloning Service for this BCM. Simply send us your original module, and we will transfer all the critical vehicle-specific data—including VIN, mileage, and key information—to this replacement unit. The result? A truly plug-and-play module that requires no expensive trip to the dealership for programming. It arrives at your door ready for installation, saving you time, money, and stress.
Case Study: The Ghost in the Escalade
I remember a 2010 Escalade that rolled into my bay last winter. The owner was at his wit’s end. The radio would change stations by itself, the interior lights would pulse randomly, and occasionally, it wouldn’t start, showing a ‘Service Theft System’ message. He’d already replaced the battery and alternator at another shop. After connecting my scan tool, I saw a storm of U-codes (communication errors) pointing to a network failure. The culprit wasn’t a wiring issue, but the BCM itself. Water intrusion from a leaky windshield cowl had caused corrosion on the main board. By providing a cloned 2010 Escalade Body Control Module, we had him back on the road the same day with all electrical functions restored to normal. It’s a common failure I’ve seen dozens of times on these platforms.
Is Your Vehicle Showing These Symptoms?
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic instrument cluster behavior or warning lights (especially Security or Airbag).
- ✔ Headlights, taillights, or interior lights staying on or not working at all.
- ✔ The vehicle’s horn or alarm sounding unexpectedly.
- ✔ Communication Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or B1001.
- ✔ A no-start condition where the engine cranks but won’t fire, often with a security light on.
- ✔ Malfunctioning remote keyless entry (RKE) system.
A Straightforward Guide to BCM Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On the 2010 Escalade, Yukon, and Tahoe, the BCM is typically located under the driver’s side of the dashboard, near the steering column. For other models like the Impala or Acadia, it’s often on the left side of the dash. For vans like the Express/Savana, check the center dash area.
- ✔ Remove Trim Panels: You may need to remove a few plastic trim panels or the lower dash cover to gain access. These are usually held by clips or small screws.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be pressed to release. Once disconnected, unbolt the module from its mounting bracket.
- ✔ Install the New Module: Mount your new, cloned BCM in the same location and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock into place.
Important Post-Installation Steps
After installing your new 2010 Escalade Body Control Module, a couple of relearn procedures may be necessary depending on your specific vehicle. If the airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Additionally, a ‘Brake Pedal Position Relearn’ might be required for proper brake light and stability control function. Your original module is always returned to you with the replacement unit.
Verified Vehicle Compatibility
This Body Control Module is a direct replacement for part number 20815898 and is interchangeable with a wide range of other part numbers. It fits numerous GM vehicles. Please verify your vehicle is on the list below. Note that specific IDs may be required for certain models.
- ACADIA 2007-2012
- AVALANCHE 1500 2010
- CAPRICE 2011-2013
- CAPTIVA SPORT 2012
- CTS 2008-2013
- DTS 2006-2011
- ENCLAVE 2008-2012
- EQUINOX 2007-2009
- ESCALADE / ESV / EXT 2010
- EXPRESS 1500 VAN 2008-2012
- EXPRESS 2500 VAN 2008-2012
- EXPRESS 3500 VAN 2008-2012
- G8 2008-2009
- HUMMER H2 2008-2009
- IMPALA 2006-2013
- LUCERNE 2006-2011
- MONTE CARLO 2006-2007
- OUTLOOK 2007-2010
- SAVANA 1500 VAN 2008-2012
- SAVANA 2500 VAN 2008-2012
- SAVANA 3500 VAN 2008-2012
- SRX 2007-2009
- STS 2010
- SUBURBAN 1500 2010
- TAHOE 2010
- TORRENT 2007-2009
- TRAVERSE 2009-2012
- VUE 2008-2010
- YUKON / YUKON XL 1500 2010
This module also replaces the following part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084.
What is the cloning service?
It’s a process where we transfer the essential programming and security data from your original BCM to the replacement unit. This makes the new module plug-and-play, eliminating the need for dealership programming and saving you hundreds of dollars.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, we need your original (old) BCM to extract the vehicle’s specific data. We will return your original module along with the newly programmed replacement.
Will this fix my ‘Service Theft System’ light?
In many cases, a faulty BCM is the root cause of security system errors and no-start conditions. If the BCM is the problem, this cloned module will resolve the issue as it will contain your vehicle’s correct key information.
Is this part difficult to install for a DIYer?
The physical replacement is straightforward for someone with basic mechanical skills. It involves removing some dash panels and unplugging connectors. The main benefit of our service is that the difficult part—the programming—is already done for you.
What if my original part number is not 20815898?
This module is a direct replacement for a long list of GM part numbers. Please check the detailed fitment list above. As long as your part number is on that list, this unit will work perfectly for your vehicle.
What tools are required for the post-installation procedures?
The ‘Airbag System Sync’ and ‘Brake Pedal Position Relearn’ procedures require a professional-grade bidirectional scan tool, such as a GM Tech 2, MDI, or equivalent high-end scanner. Most local repair shops have this equipment if needed.