Are you chasing down electrical gremlins in your GM vehicle? One minute the power windows work, the next they don’t. Maybe your dash lights are flickering like a holiday display, or the radio has a mind of its own. As a technician with over two decades of diagnostic experience, I’ve seen these exact issues hundreds of times. More often than not, the culprit is a failing Body Control Module (BCM).
The BCM is the central nervous system for your vehicle’s body electronics. It manages everything from your interior lights and power locks to the security system and remote start. When it starts to fail, it can cause a cascade of frustrating and unpredictable problems. This isn’t just an annoyance; a faulty BCM can affect vehicle security and even prevent it from starting.
Forget the hassle and expense of a dealership visit. We offer a reliable, direct-fit solution with this 2007-2009 GM Body Control Module. The biggest hurdle in replacing a BCM is the programming—but we’ve taken care of that for you. Simply provide us with your vehicle’s VIN during checkout, and our experts will flash the module with the latest GM software specific to your car or truck. It arrives at your door ready to install, saving you hundreds in dealer programming fees.
Case Study: A Tricky Diagnosis
I remember a 2010 GMC Acadia that came into the shop with a list of bizarre symptoms. The owner complained of the liftgate opening randomly, intermittent ‘Service Stabilitrak’ messages, and the key fob not working consistently. Initial scans showed a slew of communication error codes (U-codes), pointing fingers at multiple modules. After verifying the network wiring, we isolated the BCM. The internal circuits were failing intermittently, flooding the data bus with noise. We installed a pre-programmed BCM, and instantly, all the phantom issues vanished. The customer saved a fortune on what could have been a wild goose chase replacing other parts.
Common Signs of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and interior/exterior lights.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Key fobs that stop working or function intermittently.
- ✔ A security light that stays on, preventing the vehicle from starting.
- ✔ False warning messages on the driver information center (e.g., ‘Service Airbag,’ ‘Service Traction Control’).
- ✔ Communication-related Diagnostic Trouble Codes (DTCs), such as U0140 (Lost Communication With Body Control Module).
- ✔ Wipers activating on their own or not turning off.
Your Straightforward BCM Installation Guide
Installing your new 2007-2009 GM Body Control Module is a manageable task for a confident DIYer. While the exact location varies (see fitment list), the process is generally similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before starting work.
- Locate the BCM: It’s typically found under the driver’s side dash, near the steering column, or behind a kick panel. On some vans, it might be in the center dash area.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module.
- Disconnect and Remove: Unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM and remove it.
- Install the New Module: Seat your new, pre-programmed BCM in place and secure it. Reconnect all electrical connectors firmly until they click.
- Post-Installation Steps: Reconnect the battery. Start the vehicle and test all functions (lights, windows, locks, etc.). In some cases, a ‘Brake Pedal Position Relearn’ or ‘Airbag System Sync’ may be required using a professional scan tool if related warning lights appear.
Verified Fitment For Your GM Vehicle
This module is a direct replacement for a wide range of GM models and supersedes multiple part numbers. Please verify your vehicle is on this list. It is compatible with part numbers: 10382479, 15093910, 15276271, 15299986, 15819552, and many more.
IMPALA 06-13 (LH dash)
ACADIA 07-12 (LH dash)
TAHOE / YUKON / SUBURBAN / AVALANCHE 10 (under steering column)
EXPRESS / SAVANA VANS 08-12 (center dash)
TRAVERSE 09-12 (LH dash)
ENCLAVE 08-12 (LH dash)
DTS 06-11 (RH center dash)
LUCERNE 06-11 (right side dash)
CTS 08-13 (LH dash)
SRX 07-09 (LH dash)
HUMMER H2 08-09 (LH firewall)
…and many other vehicles listed in the fitment data.
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is essential. We use it to load the correct, vehicle-specific software and calibrations onto the module before shipping. This ensures it communicates properly with your vehicle’s other computers, making the installation process as smooth as possible.
Is this a plug-and-play part?
For most functions, yes. Because we program it to your VIN, it will control the base functions like lights, locks, and windows right out of the box. However, depending on your specific model, certain security or safety system relearn procedures (like for the airbag or brake pedal sensor) may be required with a capable scan tool.
What is a core charge? Do I have to send my old part back?
There is no core charge for this BCM. You can keep your old module, which is helpful if you ever need to reference its original part number.
What tools are needed for the post-installation procedures?
If an airbag light appears or brake sensor relearn is needed, these procedures require a bi-directional professional scan tool. Most basic code readers cannot perform these functions. We recommend consulting a qualified technician if you encounter these specific warnings after installation.
Will this fix my car not starting?
It can. A common failure in the BCM is with the Passlock or Passkey vehicle anti-theft system. If the BCM fails to recognize your key, it will disable the fuel system and prevent the engine from starting. This programmed module restores that critical function.