Restore Full Functionality to Your GM Vehicle
Are you battling frustrating electrical problems in your 2010 GMC Yukon? Issues like erratic power windows, malfunctioning interior lights, a flashing security indicator, or accessories that work one minute and not the next are often signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it falters, it can cause a cascade of confusing and unpredictable symptoms. This isn’t just an annoyance; it can affect vehicle security and safety systems.
We offer a straightforward, reliable solution. This is a direct-replacement Body Control Module that comes with our expert Cloning Service. Simply provide your vehicle’s VIN during checkout, and our technicians will program this module with the latest GM software specific to your Yukon. This process transfers your vehicle’s unique configuration, ensuring a seamless installation without a costly trip to the dealership for programming. It’s the most efficient way to get your truck back to 100%.
A Technician’s Notebook
I remember a 2010 Yukon that came into my shop with a laundry list of what the owner called “electrical gremlins.” The radio would randomly shut off, the dome lights wouldn’t work, and the remote keyless entry was completely dead. A scan showed multiple U-codes (communication errors) pointing to a network issue. After checking the main power and ground circuits to the BCM, it was clear the module itself was failing internally. Instead of a complex dealer repair, we used a VIN-programmed module like this one. The swap took less than 30 minutes, and every single issue was resolved instantly. The customer was thrilled to avoid a hefty dealership bill and a lengthy repair time.
Common Signs of a Failing BCM
If your vehicle is experiencing these issues, a faulty Body Control Module is a likely culprit. A failing BCM can often trigger communication-related Diagnostic Trouble Codes (DTCs) like U0140, U0155, or U0164.
- ✔ Power windows, locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system light flashing, preventing the vehicle from starting.
- ✔ Remote keyless entry (fob) not working.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inaccurate gauge readings on the instrument cluster.
- ✔ The “Service Stability System” or “Service Traction Control” message appearing.
A Straightforward Guide to Installation
For most DIYers with basic tools, replacing the BCM is a manageable job. In a 2010 GMC Yukon, the BCM 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 Module: Remove the lower dash panel beneath the steering wheel to gain access to the BCM. It’s a black plastic box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have locking tabs that need to be pressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Securely reconnect all wiring harnesses, ensuring each one clicks into place.
- Final Steps: Reinstall the dash panel and reconnect the negative battery terminal. Start the vehicle to confirm the repair.
Important Post-Installation Information
Because this module is pre-programmed to your VIN, most functions will work immediately. However, on some GM vehicles, additional steps known as “relearn” or “setup” procedures may be required to sync safety systems. These are not always necessary but are important to be aware of.
- Airbag System Sync: If the airbag warning light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure correct brake light and stability control operation, a brake pedal position sensor relearn might be needed. This can also be done with a compatible high-end scan tool.
Verified Vehicle Compatibility
This module is a direct replacement for part number 20921435 and a wide range of other interchangeable part numbers. It is guaranteed to fit the following vehicles, among others. Please match your part number or contact us with your VIN to confirm compatibility.
Primary Fitment: 2010 GMC Yukon (under steering column, check ID)
Also fits:
- 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 / Savana Vans (2008-2012)
- Hummer H2 (2008-2009)
- Impala (2006-2013)
- And many more. This module supersedes part numbers: 10382479, 15819552, 15921352, 20815898, 22860591, 25892622, and others.
Frequently Asked Questions
What is a BCM Cloning Service?
Our cloning service means we transfer the essential programming and vehicle-specific data from your original BCM to the replacement unit. By providing your VIN, we ensure the module is loaded with the correct software and configuration for your exact vehicle, making it a plug-and-play repair that avoids dealer programming.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to access the specific GM software build, security information, and optional feature settings for your 2010 Yukon. This is critical for ensuring all electronic features work correctly after installation.
Is this part difficult to install myself?
For someone with basic mechanical skills, the physical swap is relatively simple. It involves removing a dash panel and unplugging connectors. The main challenge is accessing the module’s location. Our pre-programming eliminates the need for complex computer work, making it very DIY-friendly.
What happens to my original module?
Our cloning service does not require you to send in your original part. We program the replacement unit using your VIN. You can simply dispose of your old, faulty module after the new one is installed and working.
Will I definitely need a scan tool after installation?
Not always. In many cases, the vehicle will operate perfectly after installation. However, for safety systems like airbags and stability control, a relearn procedure is sometimes required. This is highly dependent on the vehicle’s specific configuration. We recommend being prepared for this possibility.
Does this fix the ‘Service StabiliTrak’ message?
A faulty BCM is a common cause of erroneous ‘Service StabiliTrak’ or ‘Service Traction Control’ warnings because it can’t properly communicate with the brake and steering sensors. While other parts can cause this message, replacing a bad BCM often resolves the issue.