Restore Full Functionality to Your GM Vehicle
Is your 2007-2012 GMC Acadia suffering from baffling electrical problems? As a technician with over two decades of experience, I’ve seen it all: power windows with a mind of their own, dashboard lights flickering randomly, or a security system that prevents the car from starting. These aren’t just annoyances; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command for your vehicle’s body electronics, and when it starts to go, it can cause a cascade of frustrating issues.
This isn’t just a replacement part; it’s a complete solution. We take the biggest headache out of the repair process by programming this BCM specifically to your vehicle’s VIN before we ship it. It arrives loaded with the latest GM software updates, eliminating the need for an expensive trip to the dealership for programming. You get a reliable part that’s ready for installation, designed to restore the precise, dependable operation you expect from your vehicle.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 Acadia with a complaint that was driving them crazy. The radio would turn off, the interior lights would flicker, and occasionally the “Service Airbag” light would pop on and then disappear. They had already replaced the battery and checked the alternator. After hooking up my high-level scan tool, I noticed communication dropouts on the low-speed GMLAN network. In my shop, I’ve diagnosed hundreds of these failures; the root cause wasn’t a wiring short, but an internal fault in the BCM. After installing a VIN-programmed module just like this one, all the ghost-like electrical issues were gone. It’s a common failure point, and this is the definitive fix.
Common Signs of a Failing BCM in Your Acadia
If you’re noticing any of the following, a faulty Body Control Module is the likely culprit. Replacing the 2007-2012 Acadia Body Control Module can resolve these issues and restore your peace of mind.
- ✔ Intermittent or non-working power windows, locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior (flickering, staying on, or not turning on).
- ✔ Horn sounding unexpectedly or not working at all.
- ✔ Vehicle security system faults or a persistent anti-theft light.
- ✔ Inaccurate or malfunctioning instrument cluster gauges.
- ✔ Communication errors with other modules, often triggering warning lights like ABS or Airbag.
- ✔ A no-start condition where the engine cranks but won’t fire up due to a security lockout.
A Straightforward Guide to Your BCM Replacement
For the confident DIYer, replacing the BCM is a manageable job. The key is our pre-programming service, which handles the most complex step for you. Follow these general steps for a successful installation.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes to ensure all systems are powered down.
- Locate the BCM: On the 2007-2012 Acadia, the BCM is typically located on the left-hand (driver’s) side of the dash, often near the steering column or kick panel.
- Remove Trim Panels: You may need to remove lower dash panels or trim pieces to gain access. Keep your screws and clips organized.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that must be depressed. Once disconnected, unbolt or unclip the module from its mounting bracket.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location and reconnect all electrical harnesses. Ensure they click securely into place.
- Post-Installation Procedures: Reconnect the battery. You will need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a compatible diagnostic tool to clear the airbag light. Some vehicles may also require a Brake Pedal Position Sensor calibration.
Verified Vehicle Compatibility List
This BCM, part number 15948438, is a direct replacement for a wide range of GM vehicles. While this listing focuses on the 2007-2012 Acadia Body Control Module, it also fits the models below. It interchanges with numerous part numbers, including 15828601, 25892622, 22860591, and more, ensuring broad compatibility.
- ✔ GMC Acadia: 2007-2012
- ✔ Chevrolet Traverse: 2009-2012
- ✔ Buick Enclave: 2008-2012
- ✔ Saturn Outlook: 2007-2010
- ✔ Chevrolet Impala: 2006-2012
- ✔ Cadillac DTS: 2006-2011
- ✔ Chevrolet Express & GMC Savana Vans: Various years, check list for details.
- ✔ Chevrolet Tahoe/Suburban, GMC Yukon, Cadillac Escalade: Specific 2010 models, verify by ID.
- ✔ …and many other GM models as listed in the full fitment data.
Frequently Asked Questions
Do I need to program this BCM after I receive it?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before shipping. This means it’s ready for installation right out of the box, saving you from a costly trip to the dealership.
Where is the BCM located on my 2008 GMC Acadia?
On the 2007-2012 GMC Acadia, the Body Control Module is located inside the cabin, on the driver’s side. You’ll typically find it mounted behind the lower dashboard trim, to the left of the steering column.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). We cannot program or ship your part without it.
Will this fix the ‘Service Airbag’ light?
A faulty BCM can cause a false airbag light. While this part will fix the root cause, the light itself must be reset after installation. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This is a standard step for this repair.
Is this a difficult part for a DIYer to install?
The physical replacement is straightforward for someone with basic mechanical skills. It involves removing some interior panels and unplugging connectors. The most difficult part—the programming—is already done for you. However, you must be prepared to perform the post-install relearn procedures mentioned.
What if my original part number is not 15948438?
This module replaces a long list of interchangeable GM part numbers. Please check the detailed fitment list on this page. If your part number (e.g., 25892622, 20815898) is on our list, this module is the correct replacement for your vehicle.