Restore Your Traverse’s Electrical System with a Reliable, Programmed BCM
Is your 2009-2012 Chevrolet Traverse experiencing bizarre electrical issues? As a technician with over two decades of experience, I’ve seen it all: intermittent power windows, flickering dash lights, security system alerts for no reason, or even a frustrating no-start condition. More often than not, the culprit is a failing Body Control Module (BCM). It’s the central hub for your vehicle’s body electronics, and when it goes, it can create a cascade of confusing problems. Don’t let electrical gremlins keep your family’s SUV off the road. This is the straightforward, reliable solution you’ve been looking for.
This isn’t just a part in a box. This is a complete solution. We take a high-quality replacement BCM, flash it with the latest GM-certified software, and program it specifically to your vehicle’s VIN. This means you get a module that is ready for installation right out of the box, eliminating the need for an expensive trip to the dealership for programming. We handle the complex part so you can focus on the simple installation.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 Traverse with a laundry list of complaints: the radio would turn off randomly, the driver’s side power lock was inoperative, and the ‘Service StabiliTrak’ message kept appearing. They had already replaced the battery and checked fuses with no luck. A scan showed a flurry of communication codes, specifically a U0140 (Lost Communication With Body Control Module). Instead of just throwing parts at it, we confirmed power and ground at the BCM connector. Everything checked out. This pointed directly to an internal failure of the BCM itself. By installing one of our pre-programmed modules, we resolved all the issues in under an hour. The customer was thrilled to avoid a costly diagnostic and programming fee at the dealer.
Common Signs of a Failing BCM
If you’re experiencing any of the following, a faulty BCM is the likely cause. Replacing it with our pre-programmed unit can solve these issues and restore proper function to your vehicle.
- ✔ Power windows or door locks working intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The anti-theft or security system light is on, or the alarm goes off randomly.
- ✔ The vehicle won’t start, and the starter doesn’t engage (no click).
- ✔ Instrument panel gauges behaving erratically or going dark.
- ✔ Communication error codes stored, such as U0140, B1000, or B1325.
A Straightforward Guide to Installation
Installing your new 2009-2012 Traverse BCM is a manageable job for a confident DIYer. The BCM is typically located on the left-hand (driver’s) side of the dash.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Locate the Module: On the Traverse, you’ll find the BCM under the driver’s side of the dashboard, often near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and securely reconnect all the electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Perform Relearns (If Needed): Start the vehicle. Check for any warning lights. If the airbag light is on or you notice issues with brake lights, follow the post-installation procedures outlined below.
Important Post-Installation Steps
Our cloning service makes this process as simple as possible. However, due to the complex nature of modern vehicle systems, a couple of additional steps, known as ‘relearn procedures,’ may be required after installation. These sync the new BCM with other modules in your Traverse.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a security measure to ensure the airbag system is correctly linked to the new BCM.
- Brake Pedal Position Relearn: On some models, the brake pedal position sensor may need to be recalibrated to ensure accurate brake light operation and to keep the traction control system happy.
Verified Vehicle Compatibility
This module is a direct replacement for part number 20935349 and a wide range of other GM part numbers. It is guaranteed to fit the following models (please verify your specific options):
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25892622
CAPRICE 11-13 Body Control (BCM)
CAPTIVA SPORT 12 Body Control (BCM); (center dash), ID 20921435, 20921436, 22860591
CTS 08-13 Body Control (BCM); LH dash
DTS 06-11 Body Control (BCM); (RH center dash)
ENCLAVE 08-12 Body Control (BCM); (LH dash)
EQUINOX 07-09 Body Control (BCM); (center dash)
ESCALADE 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25892622
EXPRESS 1500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 2500 VAN 08-12 Body Control (BCM); (center dash)
EXPRESS 3500 VAN 08-12 Body Control (BCM); (center dash)
G8 08-09 Body Control (BCM); (center dash)
HUMMER H2 08-09 Body Control (BCM); (LH firewall)
IMPALA 06-13 Body Control (BCM); (LH dash)
LUCERNE 06-11 Body Control (BCM); (right side dash)
MONTE CARLO 06-07 Body Control (BCM); (LH steering column)
OUTLOOK 07-10 Body Control (BCM); (center dash)
SAVANA 1500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 2500 VAN 08-12 Body Control (BCM); (center dash)
SAVANA 3500 VAN 08-12 Body Control (BCM); (center dash)
SRX 07-09 Body Control (BCM); LH dash
STS 10 Body Control (BCM); center dash
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
TAHOE 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
TORRENT 07-09 Body Control (BCM); (center dash)
TRAVERSE 09-12 Body Control (BCM); (LH dash)
VUE 08-10 Body Control (BCM); (center dash)
YUKON 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 20815898, 25892622
This module replaces 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.
Frequently Asked Questions
How does the VIN programming process work?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). Our technicians use your VIN to access the latest GM software and program the BCM specifically for your vehicle’s factory options. This ensures compatibility and proper function upon installation.
What is the ‘Cloning Service’?
Our cloning service involves transferring the critical data from your original, failing BCM to the replacement unit. This is the most seamless method, as it preserves all vehicle-specific settings, including key data. After we program the replacement, we ship both your original module and the new one back to you.
Do I need to send my old BCM to you?
Yes, for our cloning service, you will need to ship your original module to us. This allows us to perform a precise data transfer. We always return your original module with the newly programmed replacement. We do not keep your old part.
Can I install this 2009-2012 Traverse BCM myself?
Absolutely. If you are comfortable working under the dashboard and using basic hand tools, this is a very doable DIY repair. Because we handle the programming, you avoid the most complicated part of the job. Just be aware that a post-install relearn procedure may be necessary in some cases.
What if I still have a warning light after installation?
This is uncommon, but if an airbag or other system light appears, it likely requires a simple relearn procedure as mentioned in our guide. This procedure syncs the new BCM with other modules and requires a bi-directional scan tool, which most professional repair shops have.