Restore Control and End Electrical Frustrations
Are you chasing electrical gremlins in your GM vehicle? Flickering dashboard lights, power windows with a mind of their own, or a security system that randomly prevents your car from starting are classic signs of a failing Body Control Module (BCM). As the central hub for your car’s comfort and convenience features, a faulty BCM can make driving a daily headache. I’ve seen it countless times in the shop: what seems like a dozen separate problems all trace back to this single component. This isn’t just a part; it’s the solution to restoring order and predictability to your vehicle.
We make the repair process simple. This BCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest GM software updates, ensuring optimal performance and compatibility. This means no expensive trips to the dealership for programming—a step that can often cost hundreds of dollars on its own. You get a direct-fit, ready-to-install module that gets you back on the road with confidence.
Case Study: A Tricky Diagnosis
A customer brought in their 2008 Chevy Impala with a laundry list of complaints: the radio would turn off randomly, the interior dome light wouldn’t work, and occasionally, the car wouldn’t crank, showing a ‘Service Theft System’ message. They had already replaced the battery and checked fuses with no luck. After connecting my scan tool, I found multiple communication loss codes, including a U0140 (Lost Communication With Body Control Module). This pointed directly to a failing BCM. Instead of a costly dealer part and programming, we installed one of our VIN-programmed modules. The installation took less than an hour, and instantly, all the bizarre electrical issues were gone. The customer saved time, money, and the stress of an unreliable vehicle.
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 the likely solution. Here are some of the most common symptoms I’ve diagnosed over the years:
- âś” Intermittent or non-functional power windows, door locks, or mirrors.
- âś” Erratic instrument cluster behavior, with gauges dropping to zero or lights flashing.
- âś” Headlights, taillights, or interior lights that stay on or won’t turn on.
- âś” The security or anti-theft system preventing the engine from starting.
- âś” Horn sounding unexpectedly or not working at all.
- âś” Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or other communication-related faults.
- âś” Key fob not responding or working intermittently.
A Straightforward Guide to Your BCM Installation
Installing your Programmed BCM 15299986 is a manageable job for a DIYer with basic tools. Since we handle the programming, your main job is the physical swap.
- 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 compatible models, the BCM is located under the driver’s side or passenger’s side of the dashboard, or in the center console area. A quick search for your specific model will confirm its position.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in place of the old one. Securely reconnect all electrical connectors, ensuring each one clicks into place.
- Power Up: Reconnect the negative battery terminal. Your vehicle is now ready to go.
Important Post-Installation Notes
While this module is plug-and-play, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal and can often be done with a capable bidirectional scan tool.
- Airbag System Sync: If your airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the systems. This is a safety check to ensure the airbag system communicates correctly with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure proper brake light operation and to keep the traction control system happy.
Disclaimer: Vehicle systems vary. For procedures specific to your make and model, consulting a factory service manual or a professional technician is always the best practice.
Verified Fitment for Your GM Car, Truck, or SUV
This BCM is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers. Please verify your vehicle is on the list below. After purchase, simply provide us with your VIN to ensure perfect programming.
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
Fits Models Including:
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 10, ESCALADE ESV 10, ESCALADE EXT 10, EXPRESS/SAVANA VANS 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SRX 07-09, STS 10, SUBURBAN 1500 10, TAHOE 10, TORRENT 07-09, TRAVERSE 09-12, VUE 08-10, YUKON/YUKON XL 1500 10
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is the only way we can program the BCM with the correct software and vehicle-specific options. This step is what makes the installation a simple plug-and-play process and ensures all features work correctly.
Is this a difficult part to replace myself?
For most DIYers with basic tools, this is a very manageable repair. The most challenging part is often just accessing the module under the dashboard. Since the programming is done for you, the physical swap is straightforward.
What happens if I don’t do the relearn procedures?
If required for your vehicle, skipping a relearn procedure could result in a persistent warning light (like the airbag light) or improperly functioning systems (like brake lights or traction control). It’s best to perform any necessary relearns for safety and full functionality.
Will this Programmed BCM 15299986 fix my specific problem?
If your vehicle is exhibiting common BCM failure symptoms (erratic lights, power features not working, communication codes) and is listed in our fitment guide, this module is the definitive solution. It restores the central command for all body-related electronics.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module, which saves you the time and expense of shipping it back.