Tired of Chasing Electrical Gremlins in Your GM Vehicle?
As a technician with over two decades of experience, I’ve seen it all. Flickering dashboard lights, power windows with a mind of their own, a radio that cuts out randomly, and the dreaded ‘Service StabiliTrak’ message. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s comfort and convenience features. When it starts to fail, it can make your daily drive a frustrating experience. For many owners, the next step is a costly trip to the dealership for diagnostics and programming. But it doesn’t have to be that way.
This is your direct-fit, reliable solution. We offer a genuine GM Body Control Module that comes with our professional VIN Cloning Service. Before we ship the part, our experts transfer the critical data from your original BCM to this replacement unit. This means it arrives at your door ready to install, with the latest GM software updates, eliminating the need for expensive dealership-level scan tools or programming appointments. You get a fully functional, vehicle-specific module that restores your car’s electronics to factory-fresh operation.
From the Diagnostic Bay
I remember a 2010 Tahoe that came into my shop with a laundry list of bizarre issues. The customer said his interior lights would stay on, the driver’s side power lock wouldn’t work, and the radio would randomly change stations. He’d already replaced the battery, thinking it was a voltage problem. After hooking up the scanner, I saw a slew of U-codes, specifically U0140 – Lost Communication with Body Control Module. Instead of just selling him a new module and sending him to the dealer, we used our cloning service. We pulled the data from his failing BCM, programmed the replacement, and had him back on the road in under an hour after the part arrived. He saved hundreds on programming fees and a potential tow bill. That’s the power of a ready-to-install solution.
Is Your GM Vehicle Showing These BCM Failure Signs?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is likely the solution you need. In my shop, these are the most common complaints that point directly to a faulty 2010 Tahoe BCM or its equivalent in other GM models.
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Warning lights on the dash, such as ‘Service StabiliTrak’ or ‘Service Traction Control’.
- ✔ Intermittent operation of the radio, climate controls, or windshield wipers.
- ✔ Diagnostic Trouble Codes (DTCs) like U0140, B1001, or other communication errors stored in the system.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is a manageable job for a confident DIYer. The goal is to get you back on the road quickly without a trip to the shop. For the 2010 Tahoe BCM, the module is typically located under the steering column, making access relatively simple.
- 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 BCM: On most Tahoes, Yukons, and similar SUVs, you’ll find the BCM mounted to a bracket on the driver’s side, under 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. They have locking tabs that must be depressed to be released. Avoid pulling on the wires themselves. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely fasten it. Reconnect all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reattach the negative battery terminal. Turn the key to the ‘On’ position (without starting the engine) and test the functions that were previously malfunctioning—windows, locks, lights, etc.
- Perform Relearn Procedures: As noted below, you may need to perform a couple of simple relearn procedures. Start the vehicle and check for any warning lights.
Post-Installation Requirements
Because your new BCM comes pre-programmed via our cloning service, the most complex steps are already done. However, depending on your exact vehicle, you may need to perform one or more of the following procedures:
- Airbag System Sync: If the airbag light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This syncs the new BCM with the airbag system and requires a professional-grade scan tool.
- Brake Pedal Position Relearn: To ensure accurate brake light and traction control operation, a brake pedal position sensor relearn might be necessary. This can often be done with a capable bidirectional scan tool.
Disclaimer: Vehicle systems vary. We always recommend consulting a factory service manual or a professional technician if you are unsure about any step.
Verified Compatibility for Your GM Vehicle
This BCM, part number 20921436, is a direct replacement for a wide range of General Motors vehicles. Please verify your part number or match your vehicle from the list below to ensure proper fitment. This module is compatible with the following 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, and 95151084.
AVALANCHE 1500 10
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10
ESCALADE ESV 10
ESCALADE EXT 10
EXPRESS 1500 VAN 08-12
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09
HUMMER H2 08-09
IMPALA 06-13
LUCERNE 06-11
MONTE CARLO 06-07
OUTLOOK 07-10
SAVANA 1500 VAN 08-12
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09
STS 10
SUBURBAN 1500 10
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
Frequently Asked Questions
Frequently Asked Questions
What is a BCM Cloning Service?
Our cloning service is a process where we transfer the specific software, VIN, and security information from your original, failing BCM directly onto the replacement unit. This makes the new module a perfect electronic match for your vehicle, allowing for a simple plug-and-play installation without needing dealer programming.
Do I need to send my original BCM to you?
Yes. For the cloning service to work, you must send us your original module after purchase. We will perform the service and ship both your original module and the newly programmed replacement back to you together.
Will this fix my ‘Service StabiliTrak’ warning?
In many cases, yes. The BCM is a critical communication hub for the traction control and StabiliTrak systems. A faulty BCM is a very common cause for these specific warnings on GM trucks and SUVs. This pre-programmed module is designed to resolve those communication faults.
Is this a difficult part to replace for a DIYer?
For someone with basic mechanical skills and tools, this is a very manageable job. On a 2010 Tahoe, the BCM is located under the dash and is typically held in by a few bolts. The main challenge is usually accessing it, not the replacement itself. Our cloning service removes the most difficult part: the programming.
What happens to my old part?
We always return your original module to you along with the programmed replacement unit. We do not keep your old part, and there is no core charge or fee associated with it.