Restore Full Control Over Your GM Vehicle’s Electronics
Are you battling bizarre electrical problems in your 2010 GMC Yukon XL 1500? Flickering lights, a security system that acts up, power windows with a mind of their own, or warning lights that won’t turn off can all point to one culprit: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, when the BCM starts to fail, it can cause a cascade of frustrating and unpredictable issues. This isn’t just an annoyance; it can be a safety concern when essential systems like lighting and door locks become unreliable.
This isn’t a generic, off-the-shelf part. We offer a specialized Cloning Service that provides a direct, hassle-free solution. You send us your original BCM, and we transfer its exact data—including your vehicle’s VIN, security information, and specific options—to this fully tested replacement module. We then ship both your original and the ready-to-install replacement back to you. This process ensures the replacement BCM is a perfect digital match for your vehicle, eliminating the need for expensive and time-consuming dealership programming.
A Technician’s Notebook: The Case of the Haunted SUV
I remember a 2010 Yukon XL that came into my shop with a laundry list of complaints from the owner. The dome lights would stay on, the radio would randomly shut off, and the ‘Service StabiliTrak’ message kept appearing. We checked grounds, tested wiring, and couldn’t find a consistent fault. On a hunch, we monitored the data stream from the BCM and saw erratic voltage readings and communication dropouts. It wasn’t a wiring problem; the BCM itself was failing internally. By providing a cloned 2010 Yukon XL 1500 BCM, we were able to solve all the issues in one go, without the owner needing a separate trip to the dealer for programming. It’s a fix that saves time, money, and a lot of diagnostic headaches.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty Body Control Module is a likely cause. A failing BCM can often trigger communication-related Diagnostic Trouble Codes (DTCs), such as U0100, U0140, or various B-series codes.
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The security system or keyless entry failing to work correctly.
- ✔ False warnings on the dashboard (e.g., “Service Airbag,” “Service StabiliTrak”).
- ✔ The engine won’t start, or the starter doesn’t engage, due to a security system fault (Passlock/Passkey).
- ✔ A/C and climate control functions behaving unpredictably.
A Straightforward Guide to Installation
Replacing the BCM is a manageable task for a confident DIYer. Our cloning service handles the complicated programming, so your job is the physical swap.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most GMT900 platform trucks like the Yukon XL 1500, the BCM is located under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount the new, cloned BCM in the same location and securely reconnect all the electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle and check all functions. If you see an airbag light or have issues with brake lights, follow the post-installation procedures outlined below.
Important Post-Installation Steps
While our cloning service makes this a near plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal and can often be done with a high-end scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the airbag system. This is only required if the light is on.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure proper brake light operation and to clear any traction control system warnings.
Guaranteed Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. If your original BCM has any of the following part numbers, this unit is a compatible replacement. This module fits the 2010 Yukon XL 1500 BCM identified by part numbers 20815898 or 25892622, among many others.
Replaces 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
Frequently Asked Questions
What exactly is a BCM cloning service?
Cloning is a process where we read the essential software and vehicle-specific data (like VIN, mileage, and security keys) from your original, failing BCM and write it directly onto a replacement unit. This makes the new module an exact digital copy, allowing it to work in your vehicle without requiring a trip to the dealer for expensive programming.
Do I get my original BCM back?
Yes, absolutely. We always return your original module along with the newly programmed replacement unit. We do not keep your old part.
Is this difficult to install myself?
The physical installation is straightforward for most people with basic tools. It involves removing a dash panel, unplugging the old module, and plugging in the new one. Since we handle all the programming, you skip the most difficult part of the job.
What if the airbag light comes on after I install it?
This is an uncommon but known possibility. It means the new BCM needs to be electronically introduced to the airbag system (SDM). A professional mechanic with a high-end scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
How do I send you my BCM after I order?
After you place your order, we will provide you with detailed shipping instructions. You simply package your original BCM securely and ship it to our facility. Once we receive it, we perform the cloning service and ship both modules back to you promptly.