Are you battling frustrating electrical issues in your GM truck or van? Flickering lights, malfunctioning power windows, a persistent security light, or even a no-start condition can often be traced back to a failing Body Control Module (BCM). The BCM acts as the central hub for your vehicle’s body electronics, and when it fails, it can cause a wide range of perplexing problems. This replacement BCM, part number 15136876, is the reliable, cost-effective solution to restore your vehicle’s proper function.
We take the guesswork and dealership hassle out of the equation. Before we ship your module, we program it with the latest official GM software specifically for your vehicle using the VIN you provide. This ensures compatibility and proper communication with your truck’s other electronic systems right out of the box, saving you from expensive programming fees and additional trips to a repair shop.
Solving Common GM Electrical Failures
A failing BCM doesn’t just cause one problem; it creates a cascade of issues that can be difficult to diagnose. By replacing your faulty unit with our pre-programmed 2003-2007 GM Body Control Module, you are directly addressing the root cause of these common symptoms and restoring the vehicle’s factory-intended operation.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights
- ✔ Power windows, locks, or mirrors working intermittently or not at all
- ✔ Vehicle security system faults or anti-theft light staying on
- ✔ Instrument cluster gauges behaving erratically
- ✔ Communication errors with scan tools (loss of communication with BCM)
- ✔ Intermittent no-crank, no-start condition
- ✔ Problems with the heating and A/C blower motor controls
Important Post-Installation Information
While our VIN programming handles the majority of the setup, some vehicles may require additional steps after installation. If the airbag warning light is illuminated, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the airbag system. Additionally, some models may require a ‘Brake Pedal Position Relearn’ to ensure correct brake light and traction control function. Always consult a factory service manual or a qualified technician for vehicle-specific procedures.
This 2003-2007 GM Body Control Module is a direct replacement for a wide range of Silverado, Sierra, Express, Savana, and SSR models. Please verify your part number and check the detailed fitment list to ensure compatibility. This module replaces the following part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, 10367689.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors various electronic accessories, such as power windows, locks, lights, wipers, and the security system. It’s the command center for your vehicle’s body electronics.
Why is my VIN required for purchase?
We require your Vehicle Identification Number (VIN) to program the BCM with the correct software and settings for your specific vehicle’s options and configuration. This ensures maximum compatibility and prevents issues after installation.
Is this BCM difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. However, as noted, some vehicles may require additional electronic relearn procedures for the airbag or brake systems, which may require a professional scan tool.
What if my airbag light is on after I install the BCM?
If the airbag light is on, it means the new BCM needs to be synced with the vehicle’s airbag system (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which must be performed by a qualified technician with a high-level diagnostic tool.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Will this fix my specific electrical problem?
This BCM will correct issues directly caused by a faulty module. While it resolves the most common symptoms, we always recommend a proper diagnosis by a qualified mechanic to confirm the BCM is the source of your problem before ordering.