Restore Full Electronic Function to Your GM Vehicle
Is your Chevrolet, GMC, Cadillac, or Buick suffering from strange and frustrating electrical problems? Issues like flickering lights, malfunctioning power windows, a haywire security system, or intermittent starting can often be traced back to a single component: the Body Control Module (BCM). The BCM acts as the central command center for your vehicle’s body electronics. When it fails, it can cause a cascade of confusing and disruptive symptoms. This replacement module, part number 15276271, is the definitive solution to get your vehicle operating reliably again.
From the Diagnostic Bay
We had a 2011 Chevy Impala come in that was driving the owner crazy. The power locks would cycle on their own, the radio would randomly shut off, and worst of all, the anti-theft system would engage, preventing the car from starting. After checking the basics, we pinpointed a faulty BCM. Instead of a costly trip to the dealer for a new module and programming, the owner opted for one of our pre-programmed units. After a straightforward installation, all the electrical gremlins were gone. The car started every time, and all accessories worked as they should. It’s a common story with a simple fix.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior dome lights or exterior lights staying on or not working at all.
- ✔ The security system engaging randomly, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Inconsistent operation of dashboard gauges or warning lights.
- ✔ Problems with the heating and air conditioning (HVAC) controls.
- ✔ Remote keyless entry failing to respond.
Why Choose Our GM Programmed BCM?
Don’t waste time and money at the dealership. Our service simplifies the repair process. We take a brand new, genuine GM module and flash it with the latest official software updates specific to your vehicle’s Vehicle Identification Number (VIN). This means the module arrives at your door ready for installation, eliminating the need for expensive programming tools or a trip to a mechanic for software setup. This is the most efficient way to get a reliable, fully compatible GM Programmed BCM for your car, truck, or SUV.
Installation and Post-Install Notes
While this module is designed for a direct-fit replacement, some vehicles may require simple relearn procedures after installation to ensure all systems communicate correctly. These are not complex and are often necessary with any BCM replacement.
- 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 recalibration may be needed to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Frequently Asked Questions
What is a Body Control Module (BCM)?
The BCM is a computer in your vehicle that controls and monitors a wide range of electronic accessories not related to the engine, such as power windows, locks, lights, wipers, security system, and climate controls.
How do I know this BCM will fit my vehicle?
This module replaces a wide range of original part numbers. Please use the fitment list on this page to confirm your make, model, and year. Providing your VIN during checkout guarantees we will program it correctly for your specific vehicle options.
Is this part difficult to install?
The physical installation is typically straightforward, involving unplugging the old module and plugging in the new one. Because we pre-program it, you avoid the most complex part of the job. However, as noted, some minor electronic ‘relearn’ procedures may be required.
What information do you need from me?
After you complete your purchase, you must provide us with your 17-digit VIN. We cannot program or ship your module without it. This ensures the BCM works perfectly with your vehicle’s specific configuration.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
What if my airbag light turns on after I install it?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag’s computer (SDM). A procedure called ‘Setup SDM Primary Key in BCM’ must be performed with a professional-grade scan tool to resolve this.