Restore Your Vehicle’s Brain and End Electrical Frustration
Are you chasing electrical gremlins in your GM truck or van? Flickering lights, malfunctioning power windows and locks, or a security light that won’t turn off are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s body electronics, a faulty BCM can make your reliable workhorse feel unpredictable. I’ve spent over 20 years diagnosing these exact issues, and I can tell you that swapping the module is often the only permanent fix. This isn’t just a replacement part; it’s a direct solution, pre-programmed specifically for your vehicle to restore function and peace of mind.
We take the guesswork and high dealership costs out of the equation. Simply provide your vehicle’s VIN at checkout, and we will flash this BCM with the latest GM software updates for your specific build. This ensures seamless integration and performance right out of the box. This is the most effective way to get your truck or van back to 100% without needing access to expensive dealer-level diagnostic tools for programming. Get the right part, programmed correctly, the first time.
Is Your GM Truck or Van Showing These Signs?
- ✔ Erratic or non-working power windows, door locks, or mirrors.
- ✔ Interior dome lights or dashboard lights staying on or not working at all.
- ✔ The security or anti-theft system light is illuminated, potentially causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ False warnings on the driver information center (e.g., “Service 4WD System”).
- ✔ Diagnostic trouble codes (DTCs) related to communication errors, such as U0140, U0155, or U0164.
- ✔ Wipers operating intermittently or not parking in the correct position.
From the Diagnostic Bay
I remember a 2005 Silverado 2500 that came into my shop with a laundry list of bizarre complaints. The owner said his radio presets would disappear, his dome light would flicker while driving, and occasionally the power locks would cycle on their own. He’d already replaced the battery and checked grounds. We scanned it and found a slew of communication codes pointing to the BCM. The internal circuitry, specifically the solder joints on the main board, had failed from years of heat cycles and vibration—a very common failure point. We installed a VIN-programmed Programmed GM BCM 15136876, and it was like the truck was new again. All the phantom electrical issues vanished instantly. It’s a fix that brings immense relief to frustrated owners.
Your Straightforward BCM Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait at least 10-15 minutes to allow all modules to power down completely.
- ✔ Locate the BCM: On Silverado and Sierra pickups, it’s typically found under the driver’s side of the dashboard, near the steering column. For Express and Savana vans, it’s usually located behind the center dash panel.
- ✔ Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the BCM. These are often held by clips or a few screws.
- ✔ Disconnect and Remove: The BCM is held in a bracket. Unplug the multiple electrical connectors—they have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the old module and remove it.
- ✔ Install the New BCM: Seat your new, pre-programmed BCM into the mounting bracket and securely plug in all the electrical connectors. You should hear a ‘click’ as they lock into place.
- ✔ Reconnect and Test: Reinstall any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position (without starting) and test functions like power windows, locks, and interior lights to confirm operation.
Post-Installation Verifications
While our VIN programming handles the critical setup, some vehicle systems may require a ‘handshake’ with the new BCM. Please be aware of the following potential procedures, which may require a professional scan tool:
- Airbag System Sync: If your airbag warning light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the airbag module with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light operation and stability control function.
Disclaimer: Vehicle systems vary. Always have a factory service manual available for your specific model or consult with a qualified automotive technician.
Verified Fitment for Your GM Vehicle
This module is a direct replacement for part numbers 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide range of models, including:
- Chevrolet Silverado 1500/2500/3500 (2003-2007 Classic) – Specific options apply, primarily non-Crew Cab models.
- GMC Sierra 1500/2500/3500 (2003-2007 Classic) – Specific options apply, primarily non-Crew Cab models.
- Chevrolet Express 1500/2500/3500 (2003-2007) – Specific options apply.
- GMC Savana 1500/2500/3500 (2003-2007) – Specific options apply.
- Chevrolet SSR (2003-2006)
Please use the detailed fitment list at the top of the page to confirm compatibility with your exact year, model, and options before ordering.
Why do you need my VIN?
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and calibrations your vehicle had from the factory, plus any available GM updates. This ensures all your vehicle’s options (like power seats, specific lighting, etc.) work correctly and that the module communicates properly with other computers in your vehicle.
Is this part difficult to install for a DIYer?
The physical replacement is straightforward for most DIYers with basic tools. It involves removing some dash panels and swapping the module. The main benefit of our service is that the difficult part—the programming—is already done for you, making this a near plug-and-play repair.
Will I need any special tools after installation?
In most cases, no. However, as noted above, some vehicles may require an airbag system sync or brake pedal position relearn if specific warning lights appear. These procedures require a bi-directional professional scan tool, which most repair shops have.
Do I need to send my old BCM back?
No. There is absolutely no core charge for this part. You can keep your old module, which saves you the time, hassle, and expense of a core return.
What’s the difference between this and a used one from a junkyard?
A junkyard BCM will be programmed for the vehicle it came from, not yours. This will cause features to work incorrectly or not at all. Our Programmed GM BCM 15136876 is delivered to you with fresh software loaded specifically for your VIN, ensuring correct functionality from the start.