Tired of Chasing Electrical Gremlins in Your GM Vehicle?
Are you dealing with a car or truck that seems to have a mind of its own? Flickering interior lights, power windows that won’t cooperate, a radio that cuts out, or a security light that stays on for no reason? These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and unpredictable problems.
A Technician’s Notebook: The Haunted Equinox
I remember a 2009 Chevy Equinox that came into my bay last winter. The owner was at his wit’s end. The dome lights would flicker while driving, the power locks worked intermittently, and the instrument cluster would sometimes go completely dark. He had already replaced the battery and checked all the fuses. After connecting my scan tool, I found a slew of communication error codes (U-codes) pointing to a network issue. This is a tell-tale sign. In my 20+ years of experience, I’ve seen this exact pattern hundreds of times. It wasn’t a ghost; it was a failing BCM. A new, programmed module fixed every single issue, and the customer drove away with a reliable vehicle again.
The Direct-Fit, Hassle-Free Solution
Stop the guesswork and avoid a costly trip to the dealership. This is a direct-fit replacement Programmed GM Body Control Module. The biggest hurdle in replacing a BCM has always been the expensive programming required after installation. We eliminate that step entirely. Simply provide us with your vehicle’s 17-digit VIN during checkout, and our experts will flash this module with the latest GM software specific to your car or truck. It will arrive at your door ready to be installed, saving you time, money, and the headache of scheduling a dealer appointment.
Common Signs of a Failing BCM
If your vehicle is experiencing any of the following, a faulty BCM is the likely culprit. A failing module can often set communication codes like U0140, U0155, or U0164.
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Instrument cluster gauges behaving strangely, dropping to zero, or lighting up with multiple warning lights.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ Vehicle security system faults or the engine failing to start due to an anti-theft issue.
- ✔ Horn sounding unexpectedly or not working when pressed.
- ✔ HVAC (A/C and heat) controls being unresponsive.
A Straightforward Guide to Installation
Installing your new Programmed GM Body Control Module is a manageable job for a confident DIYer or a quick task for any professional mechanic.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On most of these GM models, the BCM is located under the dashboard, often on the driver’s side near the steering column or behind the center dash console. A quick search for your specific model can confirm the exact location.
- 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 module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Relearn Procedures: Start the vehicle. Depending on your specific model, you may need to perform a couple of simple post-installation steps as outlined below.
Important Post-Installation Notes
While we handle the main programming, some vehicle systems need to re-synchronize with the new BCM. Don’t be alarmed if you see a warning light initially.
- Airbag System Sync: If the airbag (SRS) light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This syncs the airbag system with the new BCM and must be done with a bi-directional scan tool. This is a common security procedure on modern vehicles.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor relearn to ensure the brake lights and traction control system function correctly. This is also performed with a capable scan tool.
- No Core Charge: You are not required to send your old BCM back to us. There is no core charge associated with this purchase.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of original equipment part numbers, including: 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, and 95151084. It fits the following models:
AVALANCHE 1500 10 (under steering column), ID 25892622
CAPRICE 11-13
CAPTIVA SPORT 12 (center dash), ID 20921435, 20921436, 22860591
CTS 08 (RH dash), 08-13 (LH dash)
DTS 06-11 (RH center dash)
ENCLAVE 08-12 (LH dash)
EQUINOX 07-09 (center dash)
ESCALADE 10 (under steering column), ID 20815898 or 25892622
ESCALADE ESV 10 (under steering column), ID 20815898 or 25892622
ESCALADE EXT 10 (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 (center dash)
EXPRESS 2500 VAN 08-12
EXPRESS 3500 VAN 08-12
G8 08-09 (center dash)
HUMMER H2 08-09 (LH firewall)
IMPALA 06-12 (LH dash), 13 (LH dash), ID 22820315
LUCERNE 06-11 (right side dash)
MONTE CARLO 06-07 (LH steering column)
OUTLOOK 07-10 (center dash)
SAVANA 1500 VAN 08-12 (center dash)
SAVANA 2500 VAN 08-12
SAVANA 3500 VAN 08-12
SRX 07-09 (LH dash)
STS 10 (center dash)
SUBURBAN 1500 10 (under steering column), ID 20815898 or 25892622
TAHOE 10 (under steering column), ID 20815898 or 25892622
TORRENT 07-09 (center dash)
TRAVERSE 09-12 (LH dash)
VUE 08-10 (center dash)
YUKON 10 (under steering column), ID 20815898 or 25892622
YUKON XL 1500 10 (under steering column), ID 20815898 or 25892622
Disclaimer: Vehicle electronics can be complex. While this Programmed GM Body Control Module is designed for straightforward installation, specific procedures can vary. We always recommend consulting a factory service manual or a qualified automotive technician for guidance.
Frequently Asked Questions
Why is my original part number not listed, but my vehicle is?
GM frequently supersedes part numbers. This module is the latest hardware and software revision, replacing dozens of older, less reliable part numbers. As long as your vehicle model and year are listed, this is the correct part for you.
Do I really need to provide my VIN?
Yes, absolutely. Your vehicle’s VIN is essential for us to load the correct software and settings for your specific options package. Without it, the BCM will not function correctly.
Is this a difficult part to replace myself?
For most people with basic tools and a bit of patience, it’s very manageable. The most challenging part is often just accessing the module under the dash. The electrical connectors are simple plug-and-play once you get to them.
What if I still have problems after installation?
First, double-check that all connectors are fully seated. Second, remember that some models require the airbag or brake pedal relearn procedures with a scan tool. If issues persist, our expert support team is here to help you diagnose the situation.
Do I need to return my old BCM?
No. We do not require you to return your original module. There is no core charge or need to send anything back to us.