Tired of Unpredictable Electrical Problems in Your GM Vehicle?
If you’re dealing with flickering dash lights, power windows with a mind of their own, or a security system that randomly prevents your vehicle from starting, you’re likely facing a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can cause a cascade of frustrating and seemingly unrelated issues. This isn’t just an annoyance; it can affect vehicle safety and reliability. This Programmed GM BCM is the dependable, straightforward solution to restore full functionality and peace of mind.
Case Study: A Tricky Diagnosis
A customer brought in a 2008 Chevy Tahoe with a classic BCM failure story. The interior lights would pulse, the radio would cut out, and the ‘Service StabiliTrak’ message was on. Scans showed a handful of communication codes (U-codes) pointing to a network issue. After checking the main power and ground connections to the BCM—a critical first step—we confirmed the module itself was the culprit. Instead of a costly trip to the dealer for a new unit and programming fees, we installed a VIN-programmed BCM just like this one. The vehicle was back to normal in under an hour. This part saves both time and money, whether you’re a professional technician or a weekend DIYer.
Common Signs of a Failing GM BCM
A failing BCM can manifest in many ways. If your vehicle is showing any of these signs, a faulty Body Control Module is a very likely cause. Look out for:
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ The anti-theft or security system light staying on, preventing the engine from starting.
- ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’ when all doors are closed).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or other U-codes.
- ✔ Horn or alarm sounding unexpectedly.
Your Straightforward BCM Installation Guide
Replacing the BCM is a manageable job for most DIY enthusiasts. Our Programmed GM BCM makes it even simpler by arriving ready to install, with no need for dealer programming. Just provide your VIN at checkout.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the BCM: On most compatible models, the BCM is found under the driver’s side of the dashboard, often near the steering column or behind the kick panel. On vans like the Express or Savana, it’s typically in the center dash area.
- Remove the Old Module: Carefully unplug the electrical connectors. They have locking tabs that need to be pressed to release. Then, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM and securely plug in all the 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 (without starting the engine) and test your electronics—lights, locks, windows, etc.—to confirm proper operation.
Important Post-Installation Notes
While this module is programmed for plug-and-play installation, some GM vehicles may require additional steps for full system integration. Please be aware of the following possibilities:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a simple ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On certain models, a brake pedal position sensor relearn may be needed to ensure correct brake light and traction control function.
Always consult a factory service manual or a qualified technician if you are unsure about any step.
Verified Fitment For a Wide Range of GM Vehicles
This module is a direct replacement for numerous part numbers, ensuring broad compatibility. Please verify your vehicle is on this list. We program the module specifically for your vehicle using the VIN you provide, guaranteeing it works with your specific options.
TORRENT 07-09
EXPRESS/SAVANA VANS 08-12
IMPALA 06-13
ACADIA 07-12
MONTE CARLO 06-07
TAHOE/YUKON/SUBURBAN/AVALANCHE/ESCALADE 10
TRAVERSE 09-12
CAPTIVA SPORT 12
DTS 06-11
OUTLOOK 07-10
STS 10
CTS 08-13
G8 08-09
LUCERNE 06-11
SRX 07-09
HUMMER H2 08-09
VUE 08-10
CAPRICE 11-13
ENCLAVE 08-12
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
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the brain for your vehicle’s non-engine related electronics. It controls functions like power windows, locks, interior/exterior lighting, the security system, wipers, and more, ensuring everything works together correctly.
Why do you need my VIN to program the BCM?
Your vehicle’s 17-digit VIN (Vehicle Identification Number) contains all the specific information about its factory-installed options. We use this to load the exact software and settings your car or truck needs, ensuring the Programmed GM BCM works perfectly right out of the box.
Is this part difficult to install myself?
For someone with basic hand tools and a little experience, the installation is very manageable. The main challenge is typically accessing the module under the dash. Since our module comes pre-programmed, you skip the most difficult step: software flashing.
What if my airbag light is 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 (SDM). A repair shop with a compatible bi-directional scan tool can perform the ‘Setup SDM Primary Key’ procedure in a few minutes to resolve this.
Is there a core charge for my old part?
No, there is absolutely no core charge. You can keep your old module, so there’s no need to worry about the cost or hassle of shipping it back to us.