Restore Your GM’s Electrical Brain and End the Frustration
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 all classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s comfort and convenience features, a faulty BCM can make driving a nightmare. This isn’t just an annoyance; it can affect vehicle security and safety systems. Stop guessing and replace the root cause of the problem with a reliable, VIN-programmed BCM.
We take the guesswork and high dealership costs out of the equation. Simply provide your vehicle’s VIN during checkout, and our experts will program this module with the latest GM software specific to your car or truck. It arrives at your door ready for installation, saving you a trip to the dealer and hundreds in programming fees. This is the straightforward, professional-grade solution you’ve been looking for.
Case Study: A Tricky Diagnosis
I remember a 2011 GMC Acadia that came into my shop with a laundry list of bizarre, intermittent complaints. The radio would shut off, the dome lights wouldn’t work, and the liftgate would open on its own. The owner had already replaced the battery and checked all the fuses. A scan showed a dozen communication codes (U-codes) pointing to a network failure. Instead of a complex wiring issue, my experience pointed straight to the BCM. These modules are the traffic cops of the data network. When they fail, they start sending corrupt data, causing chaos across the vehicle. We installed a VIN-programmed BCM, and every single issue was resolved instantly. It’s a perfect example of how one component can cause a cascade of seemingly unrelated problems.
Is Your GM Showing These Symptoms?
- ✔ Power windows, door locks, or mirrors operate erratically or not at all.
- ✔ Interior or exterior lights flicker, stay on, or won’t turn on.
- ✔ The anti-theft or security system light is on, preventing the engine from starting.
- ✔ The horn honks randomly or the alarm goes off without reason.
- ✔ Dashboard warning lights appear intermittently.
- ✔ Diagnostic trouble codes (DTCs) related to communication errors (e.g., U0140, U0155) or specific body circuits are present.
Your Straightforward BCM Installation Guide
Installing your Programmed GM BCM is a manageable job for a confident DIYer. While the location varies by model (see fitment list), the general process is similar.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow capacitors to discharge.
- Locate the BCM: It’s typically found under the driver’s side dash, near the steering column, or in the center console area. Consult your service manual for the exact location.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. Keep track of your screws and clips.
- Disconnect and Remove: Unplug all electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount the new module in place and securely reconnect all electrical connectors. You should hear a ‘click’ as they lock in.
- Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all body functions—lights, locks, windows, etc.
Important Post-Installation Steps
Because this module is central to many systems, some vehicles may require one or more simple relearn procedures after installation. These ensure all related components are communicating correctly with the new BCM.
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional-grade scan tool to sync the airbag system with the new BCM and clear the light.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and to keep the traction control system happy.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or a certified technician for procedures specific to your vehicle.
Will This Fit My Vehicle?
This BCM is a direct-fit replacement for a wide variety of GM cars, trucks, and SUVs. It 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, and 95151084.
Please verify your model and options from the list below:
AVALANCHE 1500 10 (ID 25892622)
CAPRICE 11-13
CAPTIVA SPORT 12
CTS 08-13
DTS 06-11
ENCLAVE 08-12
EQUINOX 07-09
ESCALADE 10 (ID 20815898 or 25892622)
ESCALADE ESV 10 (ID 20815898 or 25892622)
ESCALADE EXT 10 (ID 25892622)
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 (ID 20815898 or 25892622)
TAHOE 10 (ID 20815898 or 25892622)
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10 (ID 20815898 or 25892622)
YUKON XL 1500 10 (ID 20815898 or 25892622)
Frequently Asked Questions
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM is a computer that manages most of your vehicle’s non-engine related electronic systems. This includes power windows, locks, interior and exterior lighting, the security system, wipers, and more. It’s the command center for passenger comfort and convenience.
Why is my VIN required for this part?
Every GM vehicle has slightly different options and software requirements. By programming the BCM to your specific Vehicle Identification Number (VIN), we ensure it has the correct software and configuration to work perfectly with your car’s features, right out of the box.
Is this a difficult part to install myself?
For someone with basic hand tools and a bit of confidence, it’s generally a straightforward job. The main challenge is usually accessing the module, which may be tucked under the dashboard. Our installation guide provides the general steps to follow.
What if my airbag light comes on after I install it?
This is not uncommon. It simply means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A repair shop or a technician with a high-end scan tool can perform the ‘Setup SDM Primary Key’ procedure in a few minutes to resolve this.
Do I need to send my old BCM back?
No. We do not require you to return your original module. There is no core charge associated with this purchase, saving you the hassle and expense of a return shipment.