Restore Your Tahoe’s Electrical Functions with a VIN-Programmed BCM
Are you tired of chasing electrical gremlins in your 2010 Chevy Tahoe? One minute the power windows work, the next they don’t. The security light is flashing for no reason, or worse, the vehicle intermittently refuses to start. These aren’t separate problems; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable issues.
Forget the expensive trip to the dealership for diagnostics and programming. We offer a reliable, cost-effective solution. This Body Control Module, part number 25934762, arrives at your door pre-programmed to your vehicle’s specific VIN. We flash it with the latest GM software updates, ensuring seamless integration and performance right out of the box. This eliminates the most difficult step of the repair, empowering you to get the job done right in your own garage.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. In my 20+ years of experience, these are the tell-tale signs I see in the shop every day.
- ✔ Intermittent or non-working power windows, door locks, or interior lights.
- ✔ The anti-theft or security light stays on, preventing the engine from starting.
- ✔ Erratic behavior from the dashboard gauges or warning lights.
- ✔ Problems with the key fob recognition or remote start system.
- ✔ Diagnostic trouble codes (DTCs) related to lost communication with other modules, such as U0140, U0155, or U0164.
- ✔ Headlights or taillights acting strangely (staying on or not turning on).
Case Study: The Ghost in the Machine
A customer brought in a 2010 Yukon XL—a close cousin to the Tahoe—with a truly baffling issue. It had a random no-start condition and the radio would sometimes stay on after the key was removed, draining the battery. They had already replaced the battery and alternator with no luck. After connecting my scan tool, I found a slew of communication codes pointing to the BCM. A visual inspection of the original module, located under the steering column, revealed faint traces of corrosion on the main connector pins, likely from a spilled drink years ago. We replaced it with one of our VIN-programmed BCMs, performed the necessary key relearn and airbag check, and the truck has been running perfectly ever since. It’s a classic example of how one component can create a dozen confusing symptoms.
Your Step-by-Step BCM Replacement Guide
Replacing the BCM on your Tahoe is a manageable job for a DIYer with basic tools. Here’s a general guide to get you started.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow the systems to fully discharge.
- Locate the BCM: On a 2010 Tahoe, the Body Control Module is typically 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 BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Battery: Reattach the negative battery terminal.
- Perform Final Procedures: After installation, you must perform a few final steps. This is not optional and is critical for safety and function. See the important notice below.
Important Post-Installation Notice
After replacing your BCM, the following procedures are required to ensure full functionality and safety. These typically require a professional-grade scan tool.
- Airbag System Check: You must perform the ‘Setup SDM Primary Key in BCM’ procedure. This synchronizes the new BCM with the airbag system (Sensing and Diagnostic Module) and will clear the airbag warning light on the dash.
- Brake Pedal Position Sensor Relearn: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated after BCM replacement. This is vital for proper brake light operation and stability control function.
- Theft Deterrent Relearn: Your vehicle’s keys will need to be relearned to the new BCM. This procedure can often be done without a scan tool and typically involves cycling the key in the ignition.
Note: Specific procedures can vary. Always consult a service manual for your exact vehicle or seek professional assistance if you are unsure.
Guaranteed Fitment for These GM Vehicles
This BCM is a direct replacement for a wide range of GM cars, trucks, and vans. Please verify your vehicle is on this list and that your original part number is listed below. Upon purchase, we will ask for your VIN to ensure perfect programming.
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
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, or 22860591
CTS 08 Body Control (BCM); RH dash
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-09 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 10 Body Control (BCM); (center dash), 4.8L, 6.0L, or 6.6L (VIN 6)
EXPRESS 2500 VAN 11-12 Body Control (BCM)
EXPRESS 3500 VAN 08-09 Body Control (BCM); (center dash)
EXPRESS 3500 VAN 10 Body Control (BCM); (center dash), 4.8L, 6.0L, or 6.6L (VIN 6)
EXPRESS 3500 VAN 11-12 Body Control (BCM)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-12 Body Control (BCM); (LH dash)
IMPALA 13 Body Control (BCM); (LH dash), ID 22820315
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 2500 VAN 10 Body Control (BCM); (center dash), 4.8L, 6.0L, or 6.6L (VIN 6)
SAVANA 2500 VAN 11-12 Body Control (BCM); (center dash)
SAVANA 3500 VAN 08-09 Body Control (BCM); (center dash)
SAVANA 3500 VAN 10 Body Control (BCM); (center dash), 4.8L, 6.0L, or 6.6L (VIN 6)
SAVANA 3500 VAN 11-12 Body Control (BCM)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898 or 25892622
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your Vehicle Identification Number (VIN) is mandatory. We use it to load the precise software and calibrations for your specific vehicle’s options. This ensures the BCM communicates correctly with the engine computer, transmission computer, and other modules, preventing a host of potential issues.
What happens if I don’t do the post-installation procedures?
Skipping these steps can lead to serious problems. At a minimum, you will have an airbag warning light on your dash, which means the airbag system is disabled. You could also have issues with brake lights, anti-lock brakes, or be unable to start the vehicle due to the anti-theft system.
Can I program this myself?
The main programming is done by us before we ship the part to you. However, the final procedures like the SDM key setup, BPP sensor relearn, and key relearn require specific tools or procedures. While the key relearn can often be done by a DIYer, the others typically require a bi-directional scan tool that most hobbyists don’t own.
How do I find my original BCM part number?
The part number is printed on a sticker directly on your original Body Control Module. While this part replaces many numbers, it’s always best practice to visually inspect your old part to confirm you are ordering the correct component for your vehicle.
Will this fix my ‘Service StabiliTrak’ message?
It’s possible. The StabiliTrak system relies on inputs from various sensors that are routed through the BCM, like the brake pedal position sensor. If the BCM is faulty or the BPP sensor isn’t recalibrated after replacement, it can trigger this warning. However, this message can also be caused by many other issues, so a proper diagnosis is always recommended.