Restore Control and End Electrical Frustrations
Are you dealing with bizarre electrical issues in your Cadillac STS or another GM vehicle? Flickering lights, power windows with a mind of their own, or a security system that prevents your car from starting are classic signs of a failing Body Control Module (BCM). As the central computer for your vehicle’s comfort and convenience features, a faulty BCM can turn your daily drive into a constant headache. I’ve seen it countless times in the shop—what seems like multiple unrelated problems all trace back to this single component.
This isn’t just an inconvenience; it can affect vehicle security and safety systems. Instead of facing a costly trip to the dealership for diagnostics, parts, and programming, we offer a direct, reliable solution. This is a replacement Body Control Module, part number 25892622, that arrives at your door pre-programmed for your specific vehicle. Simply provide your VIN during checkout, and our technicians will flash the module with the latest GM software updates. This ensures it integrates seamlessly with your vehicle’s existing systems, making the repair process as straightforward as possible.
Common Signs of a Failing GM BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating intermittently.
- ✔ The security system light stays on, or the vehicle won’t start (anti-theft active).
- ✔ Dashboard warning lights appearing for no reason.
- ✔ Radio or climate control malfunctions.
- ✔ Diagnostic Trouble Codes (DTCs) stored in the system, such as U0140 (Lost Communication With Body Control Module) or other U-codes indicating network problems.
From the Diagnostic Bay
I remember a 2010 Cadillac CTS that came in with the strangest list of complaints I’d seen in a while. The owner said the horn would honk when he used the right turn signal, and the driver’s side window would only go down, not up. A quick scan showed a flood of communication errors between modules. A less experienced tech might have started chasing wires for hours. But after 20 years, you develop a sixth sense for these things. The culprit wasn’t faulty wiring or individual switches; it was the BCM, the vehicle’s electronic traffic cop, sending all the wrong signals. We installed a VIN-programmed BCM, and instantly, every function returned to normal. This part saves hours of diagnostic guesswork and gets the job done right the first time.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery and wait about 10 minutes to ensure all systems are fully powered down.
- ✔ Locate the BCM: On the 2010 Cadillac STS, the BCM is typically located in the center dash area. For other models, it may be under the steering column or behind a kick panel. A quick search for your specific model will confirm its location.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket and remove it from the vehicle.
- ✔ Install the New Module: Mount your new, pre-programmed BCM onto the bracket and securely reconnect all the electrical harnesses. You should hear a click as they lock into place.
- ✔ Reconnect Power: Re-attach the negative battery terminal and tighten it securely.
- ✔ Perform Final Checks: Start the vehicle and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair was successful. Note the post-installation procedures below, as some vehicles may require an additional step.
Important Post-Installation Information
While our programming handles the vast majority of the setup, some GM vehicles require a ‘handshake’ between modules after installation. Be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning 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 certain models, a brake pedal position sensor relearn may be required to ensure proper brake light and traction control operation.
- No Core Charge: You can keep your old module, as there is absolutely no core charge or need to return the original part.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified automotive technician if you are unsure about any step.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and supersedes multiple part numbers. Please verify your vehicle is on this list and that your original part number is listed below.
Replaces 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
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 VANS (1500/2500/3500) 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS (1500/2500/3500) 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. (Please check the original description for specific options and IDs).
Frequently Asked Questions
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. Just provide your vehicle’s VIN at checkout, and the module will arrive ready to be installed.
Is this a difficult part for a DIYer to replace?
For most models, this is a very manageable DIY job. The BCM is usually accessible behind a dash panel and involves unplugging connectors and removing a few bolts. Basic hand tools are all that’s typically required.
What does ‘No Core Charge’ mean?
It means you do not have to send your old, faulty BCM back to us. This saves you the time, hassle, and expense of return shipping and waiting for a core deposit refund.
What if my airbag light comes on after I install it?
This is a known possibility on some GM vehicles. It simply means the new BCM needs to be electronically introduced to the airbag module. A repair shop with a professional bidirectional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
How do I know if the BCM is really my problem?
A failing BCM typically causes multiple, seemingly unrelated electrical issues. If your windows, locks, lights, and security system are all acting up, the BCM is a primary suspect. A professional diagnosis is the only way to be 100% certain, but these symptoms are a strong indicator.