Restore Full Functionality to Your Chevrolet Traverse
Are you dealing with baffling electrical issues in your 2009-2012 Chevrolet Traverse? One moment the power windows work, the next they don’t. Maybe the key fob has stopped responding, the security light is flashing for no reason, or you’re experiencing a frustrating intermittent no-start condition. These aren’t random glitches; they are classic signs of a failing Body Control Module (BCM), the central command center for your vehicle’s electronics.
Don’t let a faulty BCM disrupt your daily life or lead to expensive, and often incorrect, diagnostic guesswork. We offer a dependable and straightforward solution: a replacement Body Control Module, part number 15819552, that arrives at your door fully programmed to your vehicle’s specific VIN. This eliminates the need for a costly trip to the dealership for programming. Simply provide your VIN after purchase, and our experts will handle the software flashing, ensuring a seamless integration with your Traverse.
Case Study: A Tricky Diagnosis
I remember a 2011 Traverse that came into my shop with a complaint of a dead battery every morning. The owner had already replaced the battery and alternator, but the problem persisted. A parasitic draw test showed a significant current pull even when the vehicle was off. After isolating circuits, we traced the draw to the BCM itself. An internal relay was stuck, keeping a circuit live overnight. Swapping in a VIN-programmed BCM like this one solved the problem instantly. It’s a common failure point I’ve seen dozens of times on these GM platforms.
Is Your Traverse Showing These Symptoms?
- ✔ Unresponsive or erratic power windows, door locks, and interior lights.
- ✔ The key fob works intermittently or not at all.
- ✔ The anti-theft or security system light stays on, preventing the engine from starting.
- ✔ Wipers or other accessories activating on their own.
- ✔ Inconsistent instrument cluster operation.
- ✔ Communication error codes, often in the U-series (e.g., U0140 – Lost Communication With Body Control Module).
- ✔ False warnings on the driver information center (DIC).
A Straightforward Guide to Installation
Installing your new 2009-2012 Traverse BCM is a manageable job for a confident DIYer. The BCM is located on the driver’s side, behind the lower part of the dashboard.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning work.
- Access the Module: You will likely need to remove the lower dash panel beneath the steering column to gain access to the BCM. It’s typically held in place by a few screws or clips.
- Identify the BCM: Locate the module. It will have several large multi-pin electrical connectors attached to it.
- Disconnect and Remove: Carefully disconnect all electrical connectors. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Reconnect all electrical connectors, ensuring they click securely into place.
- Final Steps: Reinstall the dash panel and reconnect the negative battery terminal. Start the vehicle to confirm functionality.
Important Post-Installation Information
While this module is programmed for your vehicle, some systems may require a relearn or synchronization procedure. This is normal. Please be aware of the following possibilities:
- 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 syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure correct brake light and traction control operation.
Disclaimer: Procedures can vary. We always recommend consulting a factory service manual or a qualified technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM is a direct replacement for part number 15819552 and is compatible with a wide range of GM vehicles. It is guaranteed to fit the following models:
- Chevrolet Traverse: 2009, 2010, 2011, 2012 (Located at LH dash)
It also fits many other GM models including the Acadia, Enclave, Impala, Tahoe, Yukon, Express/Savana vans, and more. It replaces numerous part numbers such as 15921352, 20815898, 22860591, and others listed in the compatibility chart.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the brain for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the key fob receiver. When it fails, these systems can behave erratically.
Do I need to take this part to a dealer for programming?
No! That’s the primary benefit of our service. We program the module to your vehicle’s VIN before we ship it. This saves you time and the high cost of dealership programming, making it ready for installation right out of the box.
Is this a difficult part to replace myself?
For someone with basic mechanical skills and tools, this is a very manageable job. The main challenge is accessing the module, which is typically located under the dashboard on the driver’s side. Our installation guide provides the key steps.
What does ‘No Core Charge’ mean?
It means you do not have to send your old, faulty BCM back to us. You can keep it, dispose of it, or recycle it locally. There are no extra fees or deposits required.
My airbag light came on after I installed the new BCM. Is it defective?
No, this is a normal security measure in the vehicle’s system. The new BCM needs to be electronically ‘introduced’ to the airbag module (SDM). This requires a ‘Setup SDM Primary Key’ procedure with a professional-grade scan tool to sync the components and turn off the light.
Will this fix my specific electrical problem?
This module is the solution for failures of the BCM itself. If your vehicle is displaying multiple symptoms from our list (erratic lights, locks, security issues), a failing BCM is the most probable cause. This part is designed to fix those issues and restore proper function.