Is Your GM Vehicle Experiencing Bizarre Electrical Issues?
The Body Control Module, or BCM, is the central command center for your vehicle’s body electronics. When it begins to fail, you can experience a wide range of frustrating and seemingly unrelated problems. From power windows that won’t budge to interior lights with a mind of their own, a faulty BCM can make your daily drive a hassle. This replacement Body Control Module is the definitive solution to restore your vehicle’s electronic systems to perfect working order.
From the Diagnostic Bay
We had a 2011 Savana work van come in that was draining its battery overnight. The driver also mentioned the radio would sometimes stay on after he took the key out. After checking the battery and alternator, we traced the parasitic draw to the BCM. It wasn’t properly shutting down accessory power. Installing a VIN-programmed BCM like this one solved the battery drain and the radio issue instantly, getting the van back on the road for the next job without a costly trip to the dealership for programming.
Common Symptoms of a Failing BCM
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The security system or alarm malfunctioning or preventing the car from starting.
- ✔ Remote keyless entry failing to lock or unlock the doors.
- ✔ Dashboard warning lights appearing for no reason.
- ✔ HVAC (heater and A/C) controls being unresponsive.
- ✔ Intermittent issues that are difficult to reproduce consistently.
The Plug-and-Play Solution for Your 2008-2012 Express BCM
Don’t let a faulty module keep your vehicle down. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair by programming the module to your vehicle’s specific VIN before we ship it. This means it arrives at your door loaded with the latest GM software updates, tailored specifically for your vehicle’s options and configuration. This critical step ensures compatibility and allows for a much simpler installation process, saving you from expensive dealership programming fees and delays.
Post-Installation Information
While our programming handles the majority of the setup, some vehicles may require minor post-installation procedures. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light and traction control operation.
Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
No. We handle the programming for you. Simply provide your vehicle’s VIN during or after checkout, and we will flash the module with the correct software before shipping. It will arrive ready for installation.
What is a BCM and what does it control?
The Body Control Module (BCM) is a computer that manages many of your vehicle’s non-engine related functions, such as power windows, locks, lights, security system, wipers, and HVAC controls.
How do I find my original part number?
Your original BCM will have a sticker on it with the part number. This module replaces a wide range of part numbers, including 15093910, 25892622, 20815898, and many others listed in the description.
Is this a guaranteed fix for my vehicle’s electrical problems?
If your vehicle has been properly diagnosed with a failed BCM, this part is the correct solution. It is designed to resolve the common symptoms listed, such as erratic lights, lock failures, and security issues.
What happens if the airbag light comes on after I install it?
This is a known possibility. The new BCM needs to be electronically introduced to the airbag system (SDM). A technician with a professional-grade scan tool will need to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module.