Restore Full Functionality to Your GM Vehicle
If your 2010 GMC Yukon XL 1500 is experiencing a host of frustrating electrical issues—from flickering interior lights and malfunctioning power windows to a security system that prevents the engine from starting—a failing Body Control Module (BCM) is the most likely culprit. As the central command center for your vehicle’s body electronics, the BCM orchestrates dozens of functions we take for granted. When it falters, it can create chaos. This isn’t just an inconvenience; it can affect safety systems like your brake lights and airbags.
This replacement Body Control Module is the definitive solution. We take the guesswork and dealer hassle out of the equation. Simply provide your vehicle’s VIN at checkout, and our expert technicians will program the module with the latest GM software specifically for your Yukon XL. It arrives at your door ready for installation, saving you a costly trip to the dealership for programming. This is the same high-quality component you’d get from the dealer, but with a streamlined process designed for both savvy DIYers and professional mechanics.
A Technician’s Notebook
I remember a 2010 Yukon XL that came into my bay with the strangest set of symptoms. The owner said his radio would turn on by itself, the driver’s side power seat had a mind of its own, and the anti-theft light would flash randomly, sometimes preventing a start. There were no engine codes, just a few intermittent U-codes (like U0140 – Lost Communication with BCM) that would come and go. After checking the main grounds and power feeds, we isolated the issue to the BCM. The internal circuits were failing, sending erratic signals across the vehicle’s network. Installing a VIN-programmed BCM like this one resolved every single issue instantly. It’s a classic failure pattern I’ve seen hundreds of times on this platform.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your module needs replacement:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, locks, or mirrors working intermittently or not at all.
- ✔ The security or anti-theft system light is illuminated, causing a no-start condition.
- ✔ Inaccurate readings on the instrument cluster gauges.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or B1001.
- ✔ Horn, wipers, or radio functioning unpredictably.
A Straightforward Guide to Your BCM Installation
Replacing the 2010 Yukon XL 1500 BCM is a manageable job for someone with basic mechanical skills. 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 before starting any electrical work.
- Access the Module: You may need to remove a lower dash panel or knee bolster to gain clear access to the BCM. A few screws or clips usually hold these panels in place.
- Identify and Disconnect: Locate the old BCM. It will have several multi-pin electrical connectors. Carefully press the release tabs on each connector and pull them straight out. Do not force them.
- Remove the Old BCM: The module itself is typically held in place by a few small bolts or clips. Remove them and gently take the old module out of the vehicle.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and secure it with the original hardware.
- Reconnect Everything: Firmly plug all electrical connectors into the new module. You should hear a click as they lock into place. Reinstall any dash panels you removed.
- Final Steps: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, windows, locks, etc.—to ensure proper operation.
Important Post-Installation Note: In some cases, additional steps may be required. If your airbag light is on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. Similarly, a ‘Brake Pedal Position Relearn’ might be necessary. These are standard GM procedures and can be completed by most automotive shops.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. Please verify your original part number is on this list or that your vehicle is listed below. This unit is compatible with part numbers: 15828601, 15921352, 15948439, 20815898, 20935349, 22860591, 25892622, and many more.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming for you before shipment. Just provide your VIN during checkout, and the module will arrive ready to install with the latest GM software for your specific vehicle.
Is there a core charge or do I need to return my old BCM?
There is absolutely no core charge. You can keep your old module, which saves you the time and money associated with return shipping.
What tools are required for installation?
Basic hand tools like a socket set and a screwdriver are usually all that’s needed to access and replace the BCM. No special electronic tools are required for the physical installation.
Will this fix my car’s security system issue?
Yes, in most cases. The BCM is integral to the Pass-Key/Pass-Lock anti-theft system. A failing BCM is a very common cause of security-related no-start problems, and this replacement is designed to resolve that.
What if my airbag light comes on after installation?
This is a possibility on some GM models. It simply means the new BCM needs to be synced with the airbag’s Supplemental Deployment Module (SDM). This requires a ‘Setup SDM Primary Key’ procedure, which can be done by any professional shop with a compatible scan tool.