Are you battling frustrating electrical gremlins in your GM truck or van? Issues like erratic power windows, flickering dash lights, a malfunctioning security system, or even a no-start condition often point to a single culprit: a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can cause a wide range of confusing and unpredictable problems. This replacement BCM, part number 15747545, is the definitive solution to restore full functionality and peace of mind.
We make the repair process simple. Unlike a trip to the dealer, which involves costly programming fees and vehicle downtime, our BCM arrives at your door fully programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates, ensuring perfect compatibility and performance right out of the box. This is a true plug-and-play solution designed for a straightforward installation.
We had a 2005 Silverado 2500 come in that was driving the owner crazy. The radio would turn on and off by itself, the dome light would stay on, and the ‘Service Theft System’ message would pop up randomly, sometimes preventing the truck from starting. The owner had already replaced the battery and checked all the fuses. A quick scan with our diagnostic tool showed multiple communication loss codes with the BCM. Instead of a complicated diagnostic chase, we installed a VIN-programmed BCM. The installation took less than an hour, and every single electrical issue was resolved instantly. The customer was thrilled to avoid a multi-day stay at the dealership and a much larger bill.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors operating intermittently or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system or anti-theft light flashing, causing a no-start condition.
- ✔ The horn honking unexpectedly or not working when pressed.
- ✔ Inaccurate or non-functional gauges on the instrument cluster.
- ✔ Diagnostic trouble codes (DTCs) related to communication loss with the BCM (U-codes).
Why Choose Our Programmed Savana 2500 Body Control Module?
This module is a direct replacement for a wide range of GM trucks and vans, including the Chevrolet Silverado, Express, SSR, and GMC Sierra and Savana models. It is a reliable, cost-effective alternative to the dealership. By having it pre-programmed, you eliminate the need for expensive scan tools or additional labor costs for software flashing. This unit is compatible with multiple original part numbers, including 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. Please verify your part number and check the detailed fitment list to ensure compatibility.
Post-Installation Information
While this is a plug-and-play part, some vehicles may require minor post-installation procedures for full system integration. Please be aware of the following:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is necessary. This requires a professional-grade scan tool to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be needed to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician if you are unsure about any step of the installation or post-installation process.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls various electronic accessories, such as power windows, locks, lights, the security system, and wipers. It acts as a central hub for these functions.
Is this BCM difficult to install?
For most DIY mechanics, the installation is straightforward. The BCM is typically located under the steering column or in the center dash area. Since our module comes pre-programmed, the physical replacement is the main task. However, some models may require the post-installation procedures mentioned above.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your order until we receive your VIN, as the programming is essential for the part to work correctly.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
What if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the vehicle’s airbag system (SDM). A qualified mechanic with a professional diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.