Restore Full Functionality to Your GM Truck
Are you battling frustrating electrical problems in your GMC Sierra or Chevrolet Silverado? Random warning lights, a non-responsive HVAC system, or power accessories that have a mind of their own are classic signs of a failing Body Control Module (BCM). As the central command center for your truck’s body electronics, a faulty BCM can cause a cascade of issues that are difficult to diagnose. This OEM-quality Body Control Module, part number 15137393, is the definitive solution, arriving pre-programmed to your truck’s specific VIN for a true plug-and-play repair.
Forget about expensive dealership visits and the hassle of programming. We handle the complex part for you. Simply provide your vehicle’s VIN at checkout, and our technicians will flash the module with the latest GM software. This ensures all your vehicle’s original features work seamlessly right out of the box, restoring the reliability you depend on for work and daily driving.
From the Diagnostic Bay
I remember a 2006 Sierra 2500HD that came into my shop with a maddening intermittent no-start condition. The security light would flash, and the starter wouldn’t engage. The owner had already replaced the battery and checked the ignition switch. After hooking up the scanner, I saw a handful of communication codes, including the notorious B1001. The culprit wasn’t the security system itself, but a failing BCM causing a communication breakdown. We installed one of our VIN-programmed modules, and the truck fired right up. The customer saved hundreds compared to the dealership quote and was back on the road the same day.
Is Your Truck Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is your likely solution:
- ✔ Intermittent or total loss of HVAC blower motor or climate controls.
- ✔ Airbag warning light is on, often with Diagnostic Trouble Code (DTC) B1001.
- ✔ Power windows, door locks, or interior/exterior lights work sporadically or not at all.
- ✔ The anti-theft or security system malfunctions, causing a no-start or crank-no-start condition.
- ✔ Unpredictable electrical behavior, like the radio turning off or gauges acting erratically.
- ✔ A cluster of U-series (communication) or B-series (body) trouble codes stored in the system.
A Straightforward Guide to Installation
This repair is one of the easiest you can do, perfect for the DIY mechanic. You can get your truck back to 100% in under 10 minutes with basic tools.
- Safety First: Always disconnect the negative terminal on your truck’s battery to prevent electrical shorts and allow the system to reset.
- Locate the BCM: On most 2003-2007 GM trucks and SUVs, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black plastic box with several large multi-pin connectors.
- Swap the Module: Carefully release the locking tabs on each electrical connector and unplug them from the old BCM. Remove the old module from its mounting bracket and set the new, pre-programmed module in its place.
- Reconnect and Test: Firmly plug all connectors into the new BCM. You’ll hear a click as they lock in. Reconnect the negative battery terminal.
- Final Checks: Start the vehicle and test all functions: lights, wipers, power windows, door locks, and the HVAC system. Most issues should be resolved immediately. For any lingering airbag lights, a post-install procedure may be needed (see FAQ).
Why Choose a Pre-Programmed Module?
This isn’t just a part; it’s a complete repair solution. Our VIN programming service for your 2003-2007 Sierra 2500 BCM saves you from the typical dealership ordeal. A new, unprogrammed module would require towing your vehicle to a dealer for expensive calibration. Our module is ready for installation upon arrival, making it the most efficient and cost-effective fix. Built to strict OEM specifications and backed by a one-year warranty, it’s a repair you can trust.
Verified Vehicle Compatibility
This module is a direct replacement for part number 15137393 and other interchangeable numbers. It fits a wide range of GM vehicles, including:
AVALANCHE 2500 02-06
ESCALADE & ESV & EXT 03-06
EXPRESS 1500/2500/3500 VAN 04-07 (w/ opt PRP)
HUMMER H2 03-07
SAVANA 1500/2500/3500 VAN 04-07 (w/ opt PRP)
SIERRA 1500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SIERRA 2500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SIERRA 3500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SIERRA DENALI 03-07 (’07 Classic)
SILVERADO 1500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SILVERADO 2500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SILVERADO 3500 PICKUP 03-07 (Crew Cab, ’07 Classic)
SUBURBAN 1500/2500 03-06
TAHOE 03-06
YUKON & YUKON XL 1500/2500 03-06
Note: Fitment details like transmission or cab type may apply. Please verify your vehicle’s options or contact us for confirmation.
Why is VIN programming so important?
VIN programming loads your truck’s specific software and options into the BCM. Without it, features like power windows, keyless entry, or specific lighting configurations won’t work correctly. Our service ensures the module is a perfect electronic match for your vehicle, eliminating the need for dealer programming.
Is there a core charge for my old part?
No. We do not require you to send back your old module. There is no core charge, saving you time and return shipping costs.
My airbag light is still on after installation. What should I do?
This is a common and expected situation. The BCM and the Sensing and Diagnostic Module (SDM, or airbag module) need to be electronically re-synced. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. It’s a quick process for any qualified mechanic.
Do I need to perform any other procedures after installing the BCM?
In some cases, a Brake Pedal Position (BPP) sensor relearn may be necessary to ensure proper brake light and traction control operation. This also requires a capable scan tool. Always consult a service manual for procedures specific to your vehicle.
What happens if I ignore a failing BCM?
Ignoring a failing BCM can lead to more severe problems. What starts as a flickering light can escalate to a complete no-start condition, leaving you stranded. It can also cause unpredictable behavior from safety systems. Replacing it promptly is crucial for your vehicle’s reliability and safety.