Restore Your GM’s Electrical Brain and End the Frustration
Are you chasing electrical gremlins in your GM vehicle? Flickering lights, a dead battery overnight, power windows with a mind of their own, or a security light that won’t turn off? Before you spend another weekend checking grounds and fuses, the real culprit is likely a failing Body Control Module (BCM). As a technician with over two decades of experience, I’ve seen these exact symptoms hundreds of times. The BCM is the central command center for your vehicle’s body electronics, and when it fails, it creates chaos.
This isn’t just a replacement part; it’s a complete, hassle-free solution. We offer a genuine GM Body Control Module, part number 15299986, that arrives at your door pre-programmed to your vehicle’s specific VIN. This means you can skip the expensive trip to the dealership for programming. We handle the complex part, loading the latest GM software onto the module so you can get your car, truck, or van back to perfect working order faster. This is the most effective way to install a replacement Programmed GM BCM and ensure all systems communicate correctly from the moment you plug it in.
A Technician’s Notebook: The Haunted Impala
A customer brought in a 2009 Impala that was, in his words, “haunted.” The interior lights would fade in and out while driving, the radio would randomly shut off, and sometimes the key fob wouldn’t work. He’d already replaced the battery and alternator. After hooking up the scan tool, I saw a slew of communication error codes pointing to the BCM. Instead of just swapping it, which would have required a tow to the dealer for programming, we ordered a pre-flashed unit like this one. The install took less than an hour, and after a quick security relearn, every single ghost in his machine was gone. This is the power of getting a part that’s ready to work right out of the box.
Is Your GM Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re experiencing any of the following, this module is the likely solution:
- ✔ Erratic or non-functional interior/exterior lights.
- ✔ Power windows, locks, or mirrors not working correctly.
- ✔ The security system acting up or preventing the car from starting.
- ✔ Unexplained battery drain that leaves you stranded.
- ✔ Warning lights on the dash (like the airbag light) that won’t clear.
- ✔ Communication error codes (U-codes) stored in the system.
- ✔ Problems with the key fob or remote start system.
A Straightforward Guide to BCM Installation
Installing your new Programmed GM BCM is a manageable job for a DIYer with basic tools. While the exact location varies by model (see fitment list), the process is generally similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electronics.
- Locate the BCM: On most listed vehicles, it’s found under the driver’s side dash, near the steering column or behind a kick panel. For vans, it’s often in the center dash area.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module.
- Disconnect and Remove: Unplug the electrical connectors. They have locking tabs, so be gentle. Then, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed module in place and securely reconnect all electrical connectors.
- Post-Installation Procedures (CRITICAL): Reconnect the battery. You will now need to perform a few simple relearn procedures. See the critical notes below.
Important: Post-Installation Relearn Required!
Even though this module is programmed, your vehicle’s other systems need to recognize it. After installation, the following steps are typically required:
- Airbag System Reset: To clear the airbag warning light, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a capable bi-directional scan tool.
- Brake Pedal Position Sensor Calibration: Some vehicles require the Brake Pedal Position (BPP) sensor to be recalibrated to ensure proper brake light function and stability control performance.
- Security Relearn: You may need to perform a simple security relearn procedure (often a 10- or 30-minute key-on cycle) to allow the vehicle to start.
Consult your vehicle’s service manual or a professional if you are unsure about these final steps.
Verified Fitment for Your GM Vehicle
This Programmed GM BCM is a direct replacement for a wide range of models and part numbers. Please verify your vehicle is on this list. Upon purchase, you must provide your VIN so we can ensure perfect programming.
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.
Compatible Models Include:
- ACADIA 07-12
- AVALANCHE 1500 10
- CAPRICE 11-13
- CAPTIVA SPORT 12
- CTS 08-13
- DTS 06-11
- ENCLAVE 08-12
- EQUINOX 07-09
- ESCALADE / ESV / EXT 10
- EXPRESS 1500/2500/3500 VAN 08-12
- G8 08-09
- HUMMER H2 08-09
- IMPALA 06-13
- LUCERNE 06-11
- MONTE CARLO 06-07
- OUTLOOK 07-10
- SAVANA 1500/2500/3500 VAN 08-12
- SRX 07-09
- STS 10
- SUBURBAN 1500 10
- TAHOE 10
- TORRENT 07-09
- TRAVERSE 09-12
- VUE 08-10
- YUKON / YUKON XL 1500 10
Note: Some models have specific options or ID numbers. Please check the original data for precise fitment details.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings your vehicle had when it left the factory, plus any available GM updates. This ensures all your specific options (like remote start, power seats, etc.) work correctly and saves you a trip to the dealer.
Is this a difficult part to install myself?
For someone with basic mechanical skills, it’s very manageable. The main challenge is usually accessing the module under the dashboard. The most important part is performing the post-install relearn procedures. If you’re not comfortable with that, a professional mechanic can complete the job quickly with this pre-programmed part.
What happens if I install it without doing the relearn procedures?
The vehicle may not start due to the security system, or you may have persistent warning lights like the airbag light. The relearn procedures are essential for synchronizing the new BCM with the rest of your vehicle’s modules.
Will this fix my check engine light?
The BCM primarily controls body functions, not engine performance. While it can sometimes set communication codes that trigger a light, it does not typically resolve engine-specific codes (like P0420 or P0300). The Check Engine Light is usually related to the Engine Control Module (ECM) or Powertrain Control Module (PCM).
Where is the BCM located on my Chevy Express van?
On most 2008-2012 Express and Savana vans, the Body Control Module is located in the center dash area. You will likely need to remove a few dash panels to gain access to it.