Restore Your Vehicle’s Electrical Systems with a Reliable, Programmed BCM
If you’re dealing with bizarre electrical issues in your GM vehicle—like power windows that won’t cooperate, door locks with a mind of their own, or a security light that won’t turn off—you’re likely facing a failing Body Control Module (BCM). As the central command center for your car’s body electronics, a faulty BCM can cause a cascade of frustrating problems. I’ve seen it hundreds of times in the shop: what seems like multiple, unrelated electrical failures often traces back to this single component. This isn’t just an inconvenience; it can affect vehicle security and safety systems.
This replacement 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 technicians will program the module with the latest GM software specific to your car. It arrives at your door ready for installation, saving you a trip to the dealer and expensive programming fees.
A Technician’s Notebook: The 2011 Acadia Mystery
A customer brought in a 2011 GMC Acadia with a classic “electrical gremlin” case. The interior lights would flicker randomly, the radio would shut off, and the battery would be dead every few mornings. They had already replaced the battery and alternator. After hooking up my diagnostic scanner, I saw multiple communication error codes (U-codes) pointing to the BCM. A parasitic draw test confirmed a significant power drain. The BCM wasn’t fully going to ‘sleep’ when the car was off, causing the drain. Installing a new, correctly programmed BCM solved all the issues at once. It’s a common failure mode I’ve diagnosed on dozens of these platforms.
Is Your GM Vehicle Showing These Symptoms?
A failing BCM can manifest in many ways. If you’re noticing any of the following, it’s a strong indicator that your BCM needs attention:
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights staying on or not working at all.
- ✔ The anti-theft or security light is illuminated, potentially causing a no-start condition.
- ✔ Inconsistent or malfunctioning dashboard gauges.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Diagnostic Trouble Codes (DTCs) related to communication errors, such as U0140, U0155, or other U-series codes.
Your Straightforward Installation Guide
Installing your new GM Body Control Module is a manageable job for a DIYer with basic tools. While the exact location varies by model (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 to ensure all systems are powered down.
- Locate the BCM: On most of these vehicles, the BCM is located under the driver’s side of the dashboard, often to the left of the steering column or in the center dash area. A quick search for your specific model will confirm its position.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module. 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 location. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—windows, locks, lights, wipers, etc.—to confirm proper operation.
Important Post-Installation Steps
Because this module is pre-programmed, most functions should work immediately. However, depending on your vehicle’s specific configuration, a couple of additional steps, known as ‘relearn procedures,’ might be necessary. These procedures sync the new BCM with other systems in your vehicle.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional-grade scan tool. This is a security measure to ensure the airbag system is correctly linked to the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be required to ensure the brake lights and traction control system function correctly. This also typically requires a capable diagnostic tool.
Disclaimer: Always consult a factory service manual for your specific vehicle for detailed instructions and torque specs. If you are not comfortable performing these procedures, please seek assistance from a qualified mechanic.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of Chevrolet, GMC, Cadillac, Buick, Saturn, and Pontiac vehicles. It replaces numerous part numbers, including 10382479, 15819552, 15828601, 20815898, 22860591, 25892622, and many more. Please check the list below to confirm fitment for your specific model and year.
ACADIA 07-12, 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 VANS (1500/2500/3500) 08-12, G8 08-09, HUMMER H2 08-09, IMPALA 06-13, LUCERNE 06-11, MONTE CARLO 06-07, OUTLOOK 07-10, SAVANA VANS (1500/2500/3500) 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.
Note: Some models have specific requirements based on engine or option codes. Please match your original part number or contact us with your VIN to guarantee compatibility.
Frequently Asked Questions
What information do you need to program the module?
We require your vehicle’s 17-digit Vehicle Identification Number (VIN) to program the module with the correct software and vehicle-specific options before shipping.
Do I have to take my car to the dealer after installation?
In most cases, no. Our pre-programming service handles the part that typically requires a dealership visit. However, as noted, some vehicles may require an airbag or brake sensor relearn procedure which needs a professional scan tool.
Is this a difficult part for a DIYer to replace?
The physical replacement is generally straightforward for someone with basic mechanical skills. It involves removing some dash panels and unplugging connectors. The key is being aware of the potential need for post-install electronic relearn procedures.
Is there a core charge or do I need to return my old BCM?
No, there is no core charge on this item. You can keep or dispose of your original module without needing to send it back to us.
Will this fix my car’s parasitic battery drain?
A failing BCM is a very common cause of parasitic battery drain on these GM vehicles. While proper diagnosis is always recommended, if the drain has been traced to the BCM, this part is the correct fix.
What if my original part number isn’t 15828601 but is on the list?
This module is a superseded part that replaces all the part numbers listed in the description. As long as your original part number is on our cross-reference list, this module will function correctly once programmed to your VIN.