Is your GM vehicle acting possessed? Flickering lights, malfunctioning power windows, or a security system that has a mind of 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 fails, it can cause a cascade of confusing and frustrating issues. This isn’t just an inconvenience; a faulty BCM can lead to a no-start condition, leaving you stranded. Restore order and reliability with our pre-programmed BCM, the direct-fit solution for a wide range of GM cars, trucks, and SUVs.
From the Diagnostic Bay
We had a 2010 Chevy Traverse come in that was driving the owner crazy. The radio would switch stations on its own, the interior lights would stay on, and occasionally the liftgate would refuse to open. The customer had already replaced the battery and checked fuses with no luck. After connecting our scan tool, we saw multiple communication error codes all pointing back to the BCM. Instead of a complex and expensive wiring chase, we installed a VIN-programmed BCM. In under an hour, every single one of the ghost-like electrical issues was gone. It’s a perfect example of how one single component can be the root of so many problems.
Is Your Vehicle Experiencing These BCM Failure Symptoms?
- ✔ Erratic or non-functional interior and exterior lights (headlights, dome lights, dash lights).
- ✔ Power windows, door locks, or mirrors not working correctly or at all.
- ✔ The security system or keyless entry malfunctioning, or the alarm going off randomly.
- ✔ The vehicle failing to start, even with a good battery and starter.
- ✔ Warning lights appearing on the dash for seemingly unrelated systems (e.g., ABS, Airbag).
- ✔ Wipers or the horn activating unexpectedly.
Why Choose Our Programmed GM Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle in replacing a BCM is the need for expensive programming at a dealership. We eliminate that step entirely. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest, most stable GM software specific to your vehicle’s configuration. This ensures a seamless installation and proper function of all related systems right out of the box. Plus, with no core charge, you don’t have to worry about the hassle and expense of sending your old, faulty part back.
Installation and Post-Install Notes
While the physical installation is straightforward for many models, please be aware of potential post-installation procedures. Depending on your vehicle’s specific options, some systems may need to be re-synced with the new BCM.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is required. This must be done with a professional-grade scan tool to ensure the safety system is fully operational.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor relearn may be necessary.
Always consult a factory service manual or a qualified technician for vehicle-specific instructions. Proper installation is critical for safety and performance.
Frequently Asked Questions
What does a Body Control Module (BCM) do?
The BCM acts as the main computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and more.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will program the module with the latest GM software matched to your specific vehicle before we ship it.
Is this a plug-and-play part?
For most vehicles, yes. Because we pre-program it to your VIN, it eliminates the need for a trip to the dealer for software flashing. However, as noted, some vehicles may require minor relearn procedures for systems like the airbags or brake sensor after installation.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep or dispose of your original module.
Will this fix my ‘Service StabiliTrak’ or ‘Service Traction Control’ message?
A faulty BCM can sometimes cause these warnings. If the BCM is the root cause, this part will resolve the issue. However, these warnings can also be caused by other components like wheel speed sensors, so proper diagnosis is always recommended.