Restore Your GM Truck’s Brain and End Electrical Chaos
If you’re dealing with a 2010 GMC Yukon XL 1500 that seems to have a mind of its own—flickering lights, malfunctioning power windows, random warning messages, or a no-start condition—the Body Control Module (BCM) is the likely culprit. As the central command center for your vehicle’s body electronics, a failing BCM can cause a cascade of frustrating and unpredictable problems. This isn’t just an inconvenience; it can affect safety systems like your lighting and anti-theft security. This replacement Body Control Module, part number 20815898, is the definitive solution to restore full functionality and peace of mind.
A Technician’s Notebook: The Haunted SUV
A customer brought in his 2010 Yukon XL complaining of what he called ‘electrical ghosts.’ The dome lights would stay on, the radio would shut off randomly, and the ‘Service StabiliTrak’ light was his constant companion. A quick scan showed a slew of U-codes (communication loss), pointing to a network issue. After checking the main data bus wiring, all signs pointed to an internally failing BCM. The module was intermittently dropping communication with other computers on the network. Replacing the BCM with a VIN-programmed unit like this one solved every single issue instantly. It’s a common failure I’ve seen hundreds of times on these GM platforms, and a direct replacement is the only surefire fix.
Is Your Vehicle Showing These Signs of BCM Failure?
The BCM manages dozens of functions, so symptoms can be varied. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ The security or anti-theft light stays on, preventing the engine from starting.
- ✔ Dashboard warning lights (like ABS, Airbag, or StabiliTrak) appear for no reason.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication, such as U0100, U0140, or other U-codes.
- ✔ The horn honks unexpectedly or doesn’t work at all.
- ✔ Rapid battery drain while the vehicle is parked.
The Smart Solution: VIN-Programmed for Your Vehicle
The biggest hurdle in BCM replacement has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. When you order, simply provide us with your vehicle’s 17-digit VIN. We will flash this module with the latest, most stable GM software specific to your 2010 Yukon XL BCM configuration. It arrives at your door ready to be installed, saving you hundreds of dollars in dealer fees and diagnostic time. This is the most efficient way to get your truck back on the road.
A Straightforward Guide to Your BCM Installation
Replacing the BCM on your Yukon is a manageable job for a DIYer with basic tools. The module is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On your 2010 Yukon XL, you’ll find the BCM mounted under the dash, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that must be depressed to release them. Avoid pulling on the wires. Once disconnected, unbolt the old module from its bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place. Reconnect all the electrical connectors, ensuring they click securely into position.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions: lights, windows, locks, radio, etc. Note the post-installation procedures below, as some relearns may be necessary.
Important Post-Installation Notes
While our programming handles the critical setup, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal. You may need a professional scan tool for the following procedures, but only if specific symptoms appear:
- ✔ Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the modules.
- ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn might be required to ensure proper brake light and traction control operation.
We have a no-hassle return policy and require no core charge. You can keep your old part.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with multiple part numbers. Please verify your original part number is on this list or that your vehicle is listed below. This is a guaranteed fit for a 2010 Yukon XL 1500 requiring ID 20815898 or 25892622.
Compatible Part Numbers: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, 95151084
Fits Select Models Including:
- ✔ GMC Acadia (2007-2012)
- ✔ GMC Savana Vans (2008-2012)
- ✔ GMC Yukon / Yukon XL (2010)
- ✔ Chevrolet Avalanche / Suburban / Tahoe (2010)
- ✔ Chevrolet Express Vans (2008-2012)
- ✔ Chevrolet Equinox (2007-2009) & Traverse (2009-2012)
- ✔ Cadillac CTS (2008-2013), DTS (2006-2011), Escalade (2010)
- ✔ Buick Enclave (2008-2012) & Lucerne (2006-2011)
- ✔ And many more. Please check the full fitment list for details.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the necessary programming before shipping. Just provide your VIN during checkout, and the module will arrive ready for installation, saving you a trip to the dealer.
Is this a difficult part to install?
For most DIYers with basic tools, this is a very manageable repair. The BCM is typically located under the dash and is held in by a few bolts. The main challenge is accessing it, which may require removing a plastic trim panel.
What if my original part number is not 20815898?
This module is a direct replacement for all the part numbers listed in our compatibility section. As long as your original number is on that list, this part will work perfectly for your vehicle.
Do I need to send my old BCM back?
No, there is absolutely no core charge for this part. You can keep your original module.
What happens if the airbag light comes on after I install it?
This is a rare but possible outcome related to vehicle security protocols. It simply means the new BCM needs to be electronically introduced to the airbag module. A professional mechanic with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.