Restore Your Vehicle’s Electrical Sanity
Are you battling a storm of bizarre electrical problems in your GM vehicle? One day the power windows refuse to budge, the next your radio acts possessed, and the security light flashes for no reason. As a technician with over 20 years of experience, I’ve seen these frustrating “ghosts in the machine” hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM). This isn’t just an annoyance; it’s the central nervous system for your car’s comfort, convenience, and security features. When it fails, it can make your vehicle unreliable and difficult to use.
This replacement Programmed GM Body Control Module is the definitive solution. We take the guesswork and high dealership costs out of the equation. Simply provide your vehicle’s VIN during checkout, and our experts will flash the module with the latest GM software specific to your car, truck, or van. It arrives at your door ready for a straightforward installation, restoring the functions you depend on every day. Plus, with no core charge, you can keep your old part without any extra hassle.
A Technician’s Notebook: The 2011 Impala Mystery
A customer brought in a 2011 Impala with a complaint that drove them nuts: intermittent no-start. The security light would flash, the key fob would stop working, and then, hours later, it would start fine. They’d already replaced the battery and ignition switch. After checking for communication codes, I saw several U-codes pointing to a loss of communication with the BCM. Instead of chasing wires for hours, I went straight to the BCM under the left side of the dash. A quick swap with a known-good unit confirmed my diagnosis. The original BCM had an internal failure, causing it to randomly drop off the data network. A new, Programmed GM Body Control Module resolved all issues instantly—a common fix for these seemingly complex electrical headaches.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely cause. This module is often the source of communication codes like U0140, U0155, and various B-series body codes.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or exterior lamps staying on or not working at all.
- ✔ The anti-theft or security system light flashing, preventing the engine from starting.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Intermittent operation of the radio, climate controls, or dashboard gauges.
- ✔ False warnings on the driver information center (DIC).
A Straightforward Guide to Your BCM Installation
Installing your new BCM is manageable for a DIYer with basic tools. While the exact location varies (see fitment list), the process is generally similar. Always consult a service manual for your specific vehicle.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all modules to power down completely.
- Locate the BCM: The BCM is typically found under the driver’s side or passenger’s side dashboard, or behind the center console. Refer to our fitment list for common locations on your model.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same position as the old one. Securely reconnect all electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test all body functions: windows, locks, lights, radio, etc.
- Post-Installation Procedures: In some cases, additional steps may be needed. If your airbag light is on, a professional scan tool is required to perform the “Setup SDM Primary Key in BCM” procedure. A Brake Pedal Position Relearn may also be necessary on certain models to ensure proper brake light and traction control operation.
Verified Vehicle Compatibility List
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers, including 10382479, 15828601, 20815898, 22860591, 25892622, and more. Please verify your vehicle is on the list below.
AVALANCHE 1500 10 (under steering column)
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash)
CTS 08-13 (LH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE / ESV / EXT 10 (under steering column)
EXPRESS 1500/2500/3500 VANS 08-12 (center dash)
G8 08-09 (center dash)
HUMMER H2 08-09 (LH firewall)
IMPALA 06-13 (LH dash)
LUCERNE 06-11 (right side dash)
MONTE CARLO 06-07 (LH steering column)
OUTLOOK 07-10 (center dash)
SAVANA 1500/2500/3500 VANS 08-12 (center dash)
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column)
TAHOE 10 (under steering column)
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON / YUKON XL 1500 10 (under steering column)
Frequently Asked Questions
Do I need to program this BCM?
No. We handle the programming for you before shipment. Just provide your VIN when you order, and it will arrive ready to install, saving you a trip to the dealer.
What is a “core charge?”
A core charge is a deposit that other companies charge until you return your old part. We make it simple: there is no core charge on this BCM. You can keep or recycle your old module without any extra fees.
Will this fix my car’s security light and no-start problem?
In many GM vehicles, a faulty BCM is the primary cause of security system-related starting issues. This part is designed to resolve those communication faults and allow your vehicle to start reliably.
What if my airbag light turns on after installation?
This is uncommon, but if it happens, it means the new BCM needs to be electronically ‘shaken hands’ with the airbag’s Sensing and Diagnostic Module (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is this a difficult part for a DIYer to install?
For most models, this is a very DIY-friendly repair. The BCM is usually accessible under the dash and held in by a few bolts or clips. The main challenge is simply accessing it. No special tools are typically required beyond basic hand tools.
Does this BCM work for other part numbers?
Yes, this module is a fully compatible replacement for a long list of GM part numbers, including 15921352, 20935349, 25826124, and many others listed in the fitment data. We ensure the software loaded matches your VIN’s requirements perfectly.