Restore Your Vehicle’s Electrical System with a Reliable BCM
Are you dealing with baffling electrical problems in your GM vehicle? One moment the power windows work, the next they don’t. The security light flashes for no reason, or worse, the car refuses to start. These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command for your car’s body electronics, and when it malfunctions, it can cause a cascade of frustrating, intermittent issues. This replacement BCM, part number 25910474, is the definitive solution to restore order and get your vehicle operating as it should.
From the Diagnostic Bay: The Ghost in the Caprice
I remember a 2012 Caprice PPV that came into the shop with a list of complaints that seemed unrelated. The dome lights would flicker, the driver’s window would randomly stop working, and occasionally, it was a no-crank/no-start. The officer driving it was convinced it was haunted. After checking the battery and alternator, which were fine, we started looking at network communication. A scan tool showed multiple ‘Lost Communication with BCM’ codes (U0140). Instead of just swapping the part, we checked the power, ground, and data lines at the BCM connector. Everything read perfectly… until we wiggled the main harness. A tiny voltage drop appeared on one of the power feeds, indicating an internal failure in the module. A new, programmed 2011-2013 Caprice BCM fixed every single issue. It’s a reminder that a single module can cause a dozen different problems.
The Power of Our Cloning Service
The biggest headache with replacing a BCM isn’t the physical installation—it’s the programming. A new module from the dealer is just a blank box. It requires expensive, specialized tools to program it with your car’s specific VIN, security information, and options. Our unique Cloning Service eliminates this step entirely. You send us your original BCM, and we professionally transfer all of its critical data to this replacement unit. When you receive it back, it’s truly plug-and-play. No trips to the dealer, no extra programming fees, and no compatibility headaches.
Is Your Vehicle Showing These Symptoms?
- ✔ Intermittent or non-working power windows, door locks, or mirrors.
- ✔ Key fob not responding or working sporadically.
- ✔ Interior or exterior lights flickering, staying on, or not turning on at all.
- ✔ Vehicle security system light is on, preventing the car from starting.
- ✔ False warnings on the instrument cluster (e.g., ‘Service Theft System’).
- ✔ Communication error codes, such as U0140, U0155, or other U-codes.
- ✔ Wipers or radio behaving erratically.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- ✔ Locate the BCM: On most compatible models like the Caprice or Impala, the BCM is located under the driver’s side dashboard, often to the left of the steering column. For vans like the Express/Savana, it’s typically behind the center dash. Consult a service manual for your specific vehicle’s location.
- ✔ Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that must be depressed to be released. Then, unbolt or unclip the module from its mounting bracket.
- ✔ Install the New Module: Seat the cloned BCM into the mounting bracket and securely plug in all electrical connectors. You should hear a click as they lock into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions: windows, locks, lights, wipers, and key fob.
Post-Installation Checks
Thanks to our cloning service, most vehicles require no additional steps. However, in some cases, you may need to perform a simple relearn procedure:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a compatible high-end scan tool. This is only necessary if the light is on.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be needed to ensure correct brake light operation and traction control function. This can also be done with a professional scan tool.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for vehicle-specific instructions.
Verified Vehicle Compatibility
This BCM is a direct replacement for part number 25910474 and is interchangeable with a wide range of other part numbers. Please verify your original part number against this list for guaranteed compatibility. This module fits many GM vehicles, including:
ACADIA 07-12
AVALANCHE 1500 10 (ID 20815898 or 25892622)
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 20815898 or 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)
Compatible 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
How does the cloning service work?
How does the cloning service work?
After you purchase, we will provide instructions for sending your original BCM to us. Our technicians will extract the vehicle-specific data (VIN, key data, options) and flash it onto the replacement module. This makes the new unit a perfect match for your car, ready for installation without any further programming.
Why do you need my VIN?
We require your Vehicle Identification Number (VIN) to load the latest GM software updates for your specific vehicle onto the module before cloning your original data. This ensures optimal performance and compatibility.
Is this a difficult part for a DIYer to install?
The physical installation is straightforward for someone with basic mechanical skills. It typically involves removing a few dash panels and unplugging connectors. Because our cloning service handles all the programming, you avoid the most difficult and expensive part of the job.
What happens to my old BCM? Do you keep it?
No, we do not keep your original module. Your old BCM is always returned to you along with the newly programmed replacement unit. There is no core charge or need to surrender your original part.
Will this fix my ‘Service Theft System’ message?
In many cases, yes. The BCM is a critical part of the Pass-Key/Passlock anti-theft system. When it fails, it can trigger security warnings and prevent the engine from starting. A properly functioning, cloned BCM will restore this communication and resolve the issue if the BCM was the root cause.