Restore Full Functionality to Your GM Vehicle
Are you dealing with baffling electrical issues in your 2010 GMC Yukon or another compatible GM vehicle? Symptoms like flickering interior or exterior lights, power windows and locks operating on their own, a security system that won’t disengage, or even a frustrating no-start condition can often be traced back to a single component: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, when the BCM falters, it can cause widespread and unpredictable problems. This isn’t just an annoyance; it can be a serious safety concern.
This replacement Body Control Module, part number 20921436, is the definitive solution. We eliminate the biggest hurdle in BCM replacement by programming the module specifically for your vehicle using your VIN. This means it arrives at your door with the latest GM software updates already installed, ready for a straightforward installation. You can bypass the expensive trip to the dealership and the hassle of scheduling a programming session. This is the reliable fix you need to get your vehicle back to 100%.
A Technician’s Notebook: The Ghost in the Machine
I remember a 2010 Yukon that came into my shop with a laundry list of complaints from the owner. The radio would change stations randomly, the dome light would stay on, and occasionally, the truck would refuse to crank. The battery was new, and the alternator checked out. After connecting my scan tool, I found a slew of ‘U’ codes, specifically U0140 (Lost Communication with BCM). This pointed directly to the BCM as the culprit. Instead of a complex wiring chase, a new, properly programmed 2010 Yukon Body Control Module resolved every single issue. It’s a classic case I’ve seen dozens of times on these platforms.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty Body Control Module is a likely cause. Proper diagnosis is always recommended, but these are hallmark symptoms:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors behaving unpredictably.
- ✔ The security system light flashing or preventing the engine from starting.
- ✔ The horn sounding randomly or not working at all.
- ✔ Dashboard warning lights illuminating without a clear cause.
- ✔ Communication-related Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or U0100.
- ✔ Complete loss of power to multiple accessory systems.
Your Straightforward Installation Guide
For many DIYers and professional technicians, installing this 2010 Yukon Body Control Module is a manageable job. On the 2010 Yukon, it is typically located under the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to fully discharge.
- Locate the BCM: On most compatible trucks and SUVs, you’ll find the BCM under the driver’s side dash, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab that needs to be depressed or lifted. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Seat the new, pre-programmed BCM into the mounting bracket and secure it. Reconnect all electrical connectors, ensuring they click firmly into place.
- Reconnect Power: Reattach the negative battery terminal and tighten it securely.
- Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc. Note the post-installation procedures below, as they may be required.
Important Post-Installation Steps
While this module comes programmed, your vehicle’s systems may require a ‘handshake’ with the new BCM. This is normal. Here are potential procedures you or your mechanic may need to perform:
- ✔ Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- ✔ Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light and traction control operation.
- ✔ No Core Charge: You are not required to return your old module. Keep it, recycle it, or dispose of it as you see fit.
Disclaimer: Vehicle systems vary. Always consult a factory service manual or a qualified technician for procedures specific to your vehicle.
Guaranteed Fitment for Your GM Vehicle
This module is a direct replacement for a wide range of GM cars, trucks, and vans, and replaces numerous part numbers including 15892622, 20815898, 25892622, and the primary part 20921436. We guarantee compatibility when you provide your VIN for programming. Key models include:
- Acadia (2007-2012)
- Avalanche (2010)
- Captiva Sport (2012)
- CTS (2008-2013)
- DTS (2006-2011)
- Enclave (2008-2012)
- Equinox (2007-2009)
- Escalade / ESV / EXT (2010)
- Express Van (2008-2012)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- Lucerne (2006-2011)
- Savana Van (2008-2012)
- Suburban (2010)
- Tahoe (2010)
- Yukon / Yukon XL (2010)
Note: This is not an exhaustive list. Please refer to the full fitment data and ensure your part number is listed for guaranteed compatibility.
Absolutely not! The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. It arrives ready to be installed, saving you time and the high cost of dealership programming.
After you complete your purchase, we simply need you to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). This allows us to load the correct software and settings for your exact model and options.
For someone with basic mechanical skills, it’s a very manageable job. The BCM on a 2010 Yukon is located under the dash and is typically held in by a few bolts or clips. The most important part is carefully disconnecting and reconnecting the wiring harnesses.
It means you are not required to send your old, faulty BCM back to us. The price you pay is the final price, with no hidden fees or deposits for a core return.
This can be a normal part of the process. The new BCM may need to be electronically introduced to other modules. An ‘Airbag System Sync’ or ‘Brake Pedal Position Relearn’ may be required using a professional scan tool to clear these lights and ensure full system functionality.