End Your Tahoe’s Electrical Frustrations for Good
Are you tired of dealing with flickering lights, a dashboard that has a mind of its own, or power windows that refuse to cooperate? These aren’t just annoyances; they’re classic signs that the Body Control Module (BCM) in your 2010 Tahoe is failing. The BCM acts as the central hub for your vehicle’s body electronics. When it malfunctions, it can cause a cascade of baffling issues that can be difficult to diagnose. As a technician with over 20 years of experience, I’ve seen how a faulty BCM can make a perfectly good vehicle feel unreliable.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost out of the repair by programming this module specifically to your vehicle’s VIN before it ships. This means you get a part loaded with the latest GM software, tailored to your Tahoe’s exact configuration, eliminating the need for an expensive trip to the dealership for programming.
Case Study: A Tricky Diagnosis
A customer brought in a 2010 Tahoe with a complaint I’ve heard hundreds of times: “My truck feels haunted.” The dome lights would stay on, the radio would randomly shut off, and the “Service Stabilitrak” warning was intermittent. A quick scan showed a U0140 code—Lost Communication With Body Control Module. While wiring was a possibility, experience pointed straight to the BCM itself. These units, especially on the GMT900 platform, are prone to internal circuit failure over time. We installed a VIN-programmed module just like this one, and all the ghost-like electrical issues vanished instantly. It’s a fix that restores both function and peace of mind.
Is Your Vehicle Showing These Symptoms?
- ✔ Erratic or non-functional power windows, locks, or mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ Dashboard warning lights (like Airbag, ABS, or Stabilitrak) illuminating without a clear cause.
- ✔ The security system preventing the vehicle from starting (Passlock issues).
- ✔ Communication error codes, particularly U-codes (e.g., U0140, U0155) stored in other modules.
- ✔ Inconsistent or failed operation of the horn, wipers, or radio controls.
A Straightforward Guide to Installation
Installing your new 2010 Tahoe Body Control Module is a manageable job for a confident DIYer. For the 2010 Tahoe, 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 BCM: On your Tahoe, look under the driver-side dash. You may need to remove a lower dash panel for access. The BCM is a black plastic box with several large multi-pin electrical connectors.
- Disconnect and Remove: Carefully unplug all electrical connectors. 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 your new, pre-programmed BCM in the same location. Reconnect all electrical connectors firmly, ensuring each one clicks securely into place.
- Reconnect Power: Reattach the negative battery terminal.
- Post-Installation Checks: Start the vehicle and test all body functions—lights, locks, windows, wipers, etc. Note that some additional steps may be required as outlined below.
Important Post-Installation Information
While our VIN programming handles the critical setup, some GM vehicles require on-vehicle relearn procedures to sync related systems. These are not signs of a defective part but a normal part of the vehicle’s security and safety architecture.
- Airbag System Sync: If your airbag 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: On some models, a brake pedal position sensor relearn might be necessary to ensure correct brake light and traction control operation.
Disclaimer: Always consult a factory service manual for procedures specific to your vehicle. If you are not comfortable performing these steps, we recommend seeking assistance from a qualified professional mechanic.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15921352 and a wide range of other GM part numbers. It fits numerous vehicles. Please verify your part number or contact us with your VIN if you are unsure. This is a partial list of compatible models:
Cadillac: CTS (08-13), DTS (06-11), Escalade/ESV/EXT (10), SRX (07-09), STS (10)
Chevrolet: Avalanche (10), Caprice (11-13), Captiva Sport (12), Equinox (07-09), Express Vans (08-12), Impala (06-13), Monte Carlo (06-07), Suburban (10), Tahoe (10), Traverse (09-12)
GMC: Acadia (07-12), Savana Vans (08-12), Yukon/Yukon XL (10)
Pontiac: G8 (08-09), Torrent (07-09)
Saturn: Outlook (07-10), Vue (08-10)
This module replaces 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, 95151084.
Frequently Asked Questions
Do I need to send my old BCM back?
No. There is no core charge for this part. You can keep your original module.
Is this part truly plug-and-play?
Our VIN programming handles the majority of the setup, making it as close to plug-and-play as possible. However, as noted above, some vehicles may require simple relearn procedures for systems like the airbags or brakes, which is a standard security feature on GM vehicles.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot program and ship the module without it.
Will this 2010 Tahoe Body Control Module fix my starting problem?
It can. The BCM is a key component of the vehicle’s anti-theft (Passlock/Passkey) system. If the BCM is faulty, it can prevent the engine from starting. This is a common failure mode that a new, correctly programmed BCM will resolve.
What if I have an airbag light after installation?
An airbag light after a BCM replacement is typically not a fault but an indication that the new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure with a bi-directional scan tool.