Is Your Avalanche 2500 Plagued by Electrical Gremlins?
If you’re dealing with flickering lights, unresponsive power windows, a malfunctioning security system, or strange HVAC behavior in your 2002-2006 Chevrolet Avalanche 2500, a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your truck’s body electronics, and when it starts to fail, it can cause a cascade of frustrating and seemingly unrelated issues. Don’t let a faulty module compromise your vehicle’s functionality and safety. This OEM-quality replacement BCM, part number 15137394, is the definitive solution to restore your truck’s electronic systems to factory-perfect condition.
From the Diagnostic Bay
We had a 2005 Silverado (which uses the same BCM) come in with a truly bizarre complaint: the radio would stay on after the key was removed, the dome light wouldn’t work, and the driver’s side window would only go down, not up. The customer had already replaced the window switch and checked fuses. After hooking up the scanner, we saw a slew of communication error codes pointing to the BCM. Instead of a complex wiring nightmare, the fix was simple: a new, properly programmed Body Control Module. This single component resolved all three issues at once, highlighting just how critical a healthy BCM is for these trucks.
The Plug-and-Play Solution: VIN Programmed for You
The biggest hurdle in replacing a BCM has always been the expensive and time-consuming programming required at a dealership. We eliminate that step entirely. Simply provide your vehicle’s VIN during checkout, and we will program this module with the latest GM software specific to your Avalanche 2500. It arrives at your door ready for a direct, plug-and-play installation. No extra tools, no dealer appointments, and no hidden fees. This ensures seamless integration with your truck’s existing systems, including the security and keyless entry features.
Symptoms of a Failing Avalanche 2500 BCM
- ✔ Unresponsive or erratic power windows, door locks, or mirrors.
- ✔ Interior or exterior lights that won’t turn on or off correctly.
- ✔ HVAC blower motor or climate controls working intermittently.
- ✔ The security system acting up, preventing the truck from starting (Passlock issues).
- ✔ An airbag warning light on the dash, often with DTC B1001.
- ✔ Wipers behaving erratically or not working at all.
- ✔ False warnings on the driver information center (DIC).
Installation and Post-Install Notes
Installation is straightforward for the average DIYer. The BCM is typically located under the driver’s side dashboard, near the steering column. Disconnecting the battery before swapping the modules is recommended. While our VIN programming handles the majority of the setup, some vehicles may require a simple relearn procedure after installation.
Airbag System Sync: If the airbag warning light is illuminated after installation, a “Setup SDM Primary Key in BCM” procedure must be performed with a professional scan tool. This is a security measure to sync the new BCM with the airbag system.
This module is a direct replacement for a wide range of part numbers, including: 15116066, 15136225, 15137393, 15137394, 15137395, 15198116, 15257043, and more. Restore your vehicle’s reliability and functionality today.
Frequently Asked Questions
Will this BCM fit my 2004 Chevrolet Silverado 1500?
Yes, this Body Control Module is compatible with a wide range of 2002-2007 GM trucks and SUVs, including the Chevrolet Silverado, Tahoe, Suburban, GMC Sierra, Yukon, and Cadillac Escalade. Please verify the part number or consult the fitment list.
What does “VIN Programmed” mean?
It means we load your vehicle’s specific Vehicle Identification Number (VIN) and corresponding software onto the module before shipping it to you. This makes the installation plug-and-play and avoids a mandatory, costly trip to the dealership for programming.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your old module without any extra fees or hassle.
Is the installation difficult? Can I do it myself?
Installation is generally simple for those with basic mechanical skills. The BCM is located under the dash and is held in by a few clips or bolts. The entire process typically takes less than 15 minutes.
What happens if my airbag light comes on after I install it?
If the airbag light appears, it means the new BCM needs to be electronically synced with your vehicle’s Sensing and Diagnostic Module (SDM). This is a security procedure called “Setup SDM Primary Key in BCM” that requires a professional-grade scan tool to complete.