Restore Your Vehicle’s Electrical System with a Pre-Programmed BCM
Is your 2007-2012 GMC Acadia suffering from baffling electrical problems? Intermittent power windows, flickering lights, a faulty security system, or even a no-start condition can often be traced back to a single, critical component: the Body Control Module (BCM). As the central nervous system for your vehicle’s body electronics, a failing BCM can create a cascade of frustrating and seemingly unrelated issues. This replacement Body Control Module, part number 20935349, is the definitive solution to restore your vehicle’s functionality and peace of mind.
Unlike a standard replacement part from a dealer or salvage yard, this BCM arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We handle the complex flashing process for you, loading the latest GM software updates before it ships. This means no expensive trips to the dealership for programming, saving you time and money. The result is a streamlined installation process designed to get you back on the road quickly.
From the Diagnostic Bay
We had a 2011 Acadia come into the shop with the strangest collection of symptoms. The owner reported that the radio would sometimes not turn on, the driver’s side power window worked only when it wanted to, and the remote key fob was unresponsive. On top of that, the battery would be dead every few mornings. We checked the battery, alternator, and looked for parasitic draws, but everything seemed normal. After hours of chasing wires, we finally hooked up a high-level scan tool and monitored the BCM data stream. We found the module was failing to go into ‘sleep’ mode, causing a constant drain, and was sending erratic commands to the accessories. Replacing the BCM with a VIN-programmed unit like this one solved every single issue at once. It’s a perfect example of how one failing module can make a whole vehicle seem possessed.
Is Your Acadia Body Control Module Failing?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, a failing module is the likely culprit:
- ✔ Unresponsive or erratic power door locks, windows, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system or anti-theft light flashing, preventing the engine from starting.
- ✔ Inconsistent or non-functional dashboard gauges and warning lights.
- ✔ Problems with the heating and A/C blower motor or controls.
- ✔ Remote keyless entry (key fob) not working correctly.
- ✔ Unexplained battery drain that leaves you with a dead battery.
Installation and Post-Install Considerations
This BCM is located on the left-hand (driver’s) side of the dash in the 2007-2012 GMC Acadia. While the physical swap is straightforward for a skilled DIYer or any professional technician, please be aware of potential post-installation procedures. Because the BCM communicates with many other vehicle systems, some models may require a ‘re-syncing’ process. This can include:
- Airbag System Sync: If your airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a capable diagnostic tool.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be necessary.
This module is a direct replacement for a wide range of GM part numbers, including 15828601, 15921352, 20815898, 22860591, 25892622, and many more, ensuring broad compatibility across various models like the Chevrolet Traverse, Buick Enclave, and Saturn Outlook. By providing your VIN, you guarantee you receive a part that is perfectly matched to your vehicle’s factory options.
Frequently Asked Questions
Do I need to program this Body Control Module?
No. We program the module to your vehicle’s VIN before shipping it to you. It arrives ready for installation, eliminating the need for an expensive trip to the dealership for programming.
Where is the BCM located on a 2007-2012 GMC Acadia?
The BCM is typically located behind the dashboard on the driver’s side, to the left of the steering column. Access may require removing lower dash panels.
What happens if I don’t provide my VIN?
Providing your VIN is a required step for this purchase. We cannot program and ship the module without it, as the programming ensures the BCM works correctly with your vehicle’s specific features and security system.
Will this fix my specific electrical problem?
This module is a common solution for a wide array of body electrical issues. While we cannot diagnose your vehicle remotely, if your symptoms match the common failure points listed, there is a very high probability this part will resolve your problems.
Are any special tools required for installation?
Basic hand tools like a socket set and trim removal tools are typically all that’s needed for the physical installation. However, as noted, a professional diagnostic scan tool may be required for post-installation procedures like the airbag system sync or brake pedal position relearn.