Restore Your Vehicle’s Electrical System with a Reliable, Pre-Programmed BCM
Are you dealing with a cascade of baffling electrical problems in your GM vehicle? One minute the power windows don’t work, the next the radio is acting up, or your dash lights are flickering like a holiday display. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM). This component is the central command center for your vehicle’s body electronics, and when it starts to go, it can create frustrating and seemingly unrelated symptoms.
This isn’t just a part; it’s a direct solution. We take the biggest headache out of the repair process: programming. Each GM Body Control Module is professionally flashed with the latest GM software updates, specifically matched to your vehicle using your VIN. This means you get a component that’s ready to install right out of the box, saving you from a costly trip to the dealership and hours of diagnostic frustration. Simply provide your VIN at checkout, and we’ll handle the rest, ensuring a seamless and effective repair.
A Technician’s Notebook: The 2010 Tahoe with a Mind of its Own
I remember a 2010 Chevy Tahoe that came into the shop with a list of complaints that seemed endless. The owner reported intermittent door lock failure, the dome light staying on, and the security light flashing randomly, preventing the truck from starting. A quick scan showed a slew of U-codes (communication errors) pointing to a network problem. Instead of chasing each symptom individually, experience told me to look at the network’s hub: the BCM. After confirming power and ground were good at the module, we swapped in a pre-programmed BCM. Instantly, every single electrical gremlin vanished. It’s a classic case of how a single failing GM Body Control Module can make a perfectly good vehicle feel unreliable.
Is Your Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re noticing any of the following, it’s a strong indicator that your Body Control Module may need replacement. Look out for communication DTCs like U0140, U0155, or B-codes related to specific body functions.
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The vehicle’s security system acting up, causing no-start conditions.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Key fob functions failing intermittently.
A Straightforward Guide to Your BCM Installation
Replacing your GM Body Control Module is a manageable job for a confident DIYer. While the location varies by model (check your service manual for specifics—it’s often behind the dash or under the steering column), the general process is consistent.
- 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: Depending on your vehicle (e.g., Impala, Acadia, Express Van), it may be on the left side of the dash, in the center console, or under the steering column. You may need to remove a few trim panels for access.
- Disconnect and Remove: Carefully unplug the electrical connectors. Most have a locking tab that needs to be pressed or lifted. Once disconnected, unbolt or unclip the old BCM and remove it from the vehicle.
- Install the New Module: Mount your new, pre-programmed BCM in the same location as the original. Secure it with the factory hardware.
- Reconnect Everything: Firmly plug in all electrical connectors. You should hear or feel a click as they lock into place. Reconnect the negative battery terminal.
- Perform Post-Install Checks: Start the vehicle and test all body functions: lights, locks, windows, wipers, etc. Note that some vehicles may require additional relearn procedures as detailed below.
Important Post-Installation Information
While our BCMs are programmed for your VIN, certain vehicle systems may require a ‘handshake’ with the new module after installation. This is a normal part of the process.
- Airbag System Sync: If the airbag light is on after installation, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. This syncs the airbag system with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure correct operation of brake lights and traction control.
- No Core Charge: You are not required to return your old module. This eliminates core charges and return shipping hassles.
Disclaimer: Vehicle systems and procedures can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Guaranteed Fitment for Your GM Vehicle
This Body Control Module is a direct replacement for a wide range of GM cars, trucks, and SUVs, and is compatible with numerous original part numbers. Please verify your vehicle is on the list below. This module 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, 95151084.
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 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
TAHOE 10
TORRENT 07-09
TRAVERSE 09-12
VUE 08-10
YUKON 10
YUKON XL 1500 10
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to program the BCM with the exact software and calibrations your vehicle requires. This ensures all features specific to your trim level and options work correctly right out of the box.
Is this a simple plug-and-play installation?
Yes, for the most part. Because we pre-program the module, you will not need the dealer to perform initial programming. However, as noted above, some vehicles may require a simple relearn procedure for systems like the airbag or brake pedal sensor, which may require a professional scan tool.
Do I have to return my old BCM?
No. We do not require you to return your original part. There is no core charge, which saves you time and money on return shipping.
What if my part number isn’t on the list but my vehicle is?
The part numbers listed are the most common, but GM often has many superseded numbers. If your vehicle model and year are listed, this module is highly likely to be the correct fit. Providing your VIN ensures we program it correctly for your specific application.
Will this fix my ‘Service Theft System’ message?
A faulty BCM is a very common cause of security system issues, including the ‘Service Theft System’ message and no-start conditions. Replacing it with our programmed module often resolves these problems.