Are you battling frustrating electrical gremlins in your GM truck or van? Flickering dashboard lights, malfunctioning power windows and locks, or a security system that acts up on its own are common signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a wide range of confusing and intermittent issues. This replacement BCM, part number 15136224, is the definitive solution to restore full functionality and reliability to your vehicle.
We take the guesswork and high cost out of the repair process. Unlike a standard replacement that requires an expensive trip to the dealership for programming, this module arrives at your door fully programmed to your vehicle’s specific VIN. Simply provide us with your VIN after purchase, and our technicians will load the latest GM software onto the module, ensuring it’s ready for installation right out of the box. This plug-and-play convenience saves you time, money, and the headache of coordinating with a service center.
From the Diagnostic Bay
We had a 2006 Silverado 2500 in the shop that was driving the owner crazy. The radio would turn off randomly, the dome light would flicker while driving, and the power locks worked only half the time. He’d already replaced the battery and checked all the fuses. After connecting our diagnostic tool, we saw multiple communication loss codes with various modules, all pointing back to a central culprit. We swapped in a pre-programmed BCM, and instantly, all the bizarre electrical issues vanished. It’s a perfect example of how a single failing module can create a cascade of seemingly unrelated problems.
Solving Problems with the GM BCM 15136224
A failing BCM doesn’t just cause minor annoyances; it can impact vehicle security and safety systems. By replacing your faulty unit with this pre-programmed module, you are directly addressing the root cause of these issues. This part is a direct replacement for a wide range of GM trucks and vans, including the Sierra, Silverado, Express, and Savana models from 2003-2007. It is cross-compatible with several part numbers, including 15167329, 15194169, 15747545, 15116065, 15198115, 15136876, and 10367689, making it a versatile and reliable fix.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, mirrors, and door locks.
- ✔ Dashboard lights flickering, staying on, or not working at all.
- ✔ Vehicle’s security system or alarm malfunctioning.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inconsistent operation of interior and exterior lighting.
- ✔ Communication errors when using a diagnostic scan tool.
- ✔ Battery drain when the vehicle is turned off.
Installation and Post-Install Notes
Installation is straightforward for those with basic mechanical skills, typically involving removing the lower dash panel to access the module. After installing your new BCM, please be aware of potential post-installation procedures. In some cases, a Brake Pedal Position Relearn may be needed. More critically, if your airbag warning light illuminates, a professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the modules. Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and the radio.
Do I need to have this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We program the BCM to your vehicle’s VIN before shipping it to you. This means it’s ready for installation upon arrival, saving you a costly trip to the dealership.
Is this part difficult to install?
For most GM trucks and vans, the BCM is located under the steering column or in the center dash area. It’s typically accessible by removing a few trim panels. It’s a manageable job for a DIYer with basic tools and experience.
What is the ‘Setup SDM Primary Key in BCM’ procedure?
This is a security procedure that syncs the new BCM with your vehicle’s airbag system (Sensing and Diagnostic Module – SDM). It’s only necessary if the airbag light comes on after installation and requires a professional-grade scan tool to complete.
Will this fix my check engine light?
Generally, no. The BCM controls body functions, while the Engine Control Module (ECM) or Powertrain Control Module (PCM) manages engine performance and the check engine light. If your primary issue is a check engine light, you may need to diagnose the ECM.
Is there a core charge for this part?
No, there is no core charge. You can keep your original, non-working module without needing to send it back.