Restore Your Vehicle’s Electrical Nervous System
Are you battling frustrating electrical gremlins in your 2007-2012 GMC Acadia? Flickering lights, malfunctioning power windows, a dead battery every morning, or random warning messages on the dash are classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can create a cascade of confusing and unpredictable problems. This isn’t just an annoyance; it can affect vehicle security, safety systems, and overall reliability.
We offer a dependable and straightforward solution: a replacement Body Control Module, part number 20935349, that arrives at your door pre-programmed to your vehicle’s specific VIN. This eliminates the need for an expensive trip to the dealership for programming. Simply provide us with your VIN after purchase, and our technicians will flash the module with the latest GM software updates, ensuring it’s ready for installation right out of the box. This is the most efficient way to solve those electrical headaches and get your Acadia operating as it should.
Case Study: A Tricky Diagnosis
A customer brought in their 2011 Acadia with a parasitic battery drain that two other shops couldn’t solve. The battery would be dead after sitting overnight. After checking the usual suspects like the alternator and battery, I connected my scan tool and monitored the network activity with the key off. I noticed the BCM wasn’t allowing other modules to go to ‘sleep’ mode, keeping them active and draining the battery. This is a common internal failure I’ve seen on dozens of these GM platforms. Swapping in a VIN-programmed Acadia Body Control Module like this one solved the drain completely. The customer was thrilled to have a reliable vehicle again without spending a fortune on diagnostic time.
Is Your Acadia Showing These Symptoms?
- ✔️ Intermittent or non-working power windows, door locks, or interior/exterior lights.
- ✔️ Unexplained parasitic battery drain leading to a dead battery.
- ✔️ False warning lights on the instrument cluster (e.g., ‘Service StabiliTrak’, ‘Service Airbag’).
- ✔️ Key fob not working correctly or security system acting up.
- ✔️ Wipers or radio turning on or off by themselves.
- ✔️ Communication errors with other vehicle modules (U-codes).
A Straightforward Guide to Installation
Replacing the BCM in your Acadia is a manageable job for a confident DIYer. While the exact location can vary slightly by model year and options, it’s typically found on the driver’s side, under the dashboard. Always consult a vehicle-specific repair manual for precise instructions.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait at least 10 minutes to allow all systems to power down completely.
- Locate the BCM: On most 2007-2012 Acadia models, the BCM is located to the left of the steering column, often attached to a junction block. You may need to remove the lower dash panel for access.
- Disconnect and Remove: Carefully unplug the multiple 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 Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all electrical connectors, ensuring they click into place.
- Post-Installation Procedures: Reconnect the battery terminal. You will need to perform a ‘Setup SDM Primary Key in BCM’ procedure with a compatible high-level scan tool to ensure the airbag system communicates correctly and clears any warning lights. Some vehicles may also require a Brake Pedal Position Sensor relearn procedure.
Verified Vehicle Compatibility
This BCM is a direct replacement for a wide range of GM vehicles and is guaranteed to function correctly when programmed for your specific model. It replaces numerous part numbers, ensuring broad compatibility. Please verify your vehicle is on the list below. If you are unsure, contact us with your VIN.
Fits: ACADIA 07-12, ENCLAVE 08-12, TRAVERSE 09-12, OUTLOOK 07-10, EQUINOX 07-09, TORRENT 07-09, CAPTIVA SPORT 12, VUE 08-10, IMPALA 06-12, MONTE CARLO 06-07, LUCERNE 06-11, DTS 06-11, CTS 08-13, STS 10, SRX 07-09, G8 08-09, CAPRICE 11-13, HUMMER H2 08-09, TAHOE 10, YUKON 10, SUBURBAN 1500 10, YUKON XL 1500 10, ESCALADE / ESV / EXT 10, AVALANCHE 1500 10, EXPRESS & SAVANA VANS 08-12, and more. Please check the detailed list in the original description or contact us to confirm fitment.
Frequently Asked Questions
Is this part really plug-and-play?
Yes, for the most part. We program the BCM to your VIN before shipping, which handles the most complex part. However, after installation, you will need a professional scan tool to perform the ‘Setup SDM Primary Key’ procedure to sync the BCM with the airbag module and potentially a brake pedal relearn. This is a security and safety requirement on all modern GM vehicles.
What information do you need from me?
After you complete your purchase, we require the 17-digit Vehicle Identification Number (VIN) from your vehicle. This is essential for us to program the module with the correct software and vehicle-specific options.
Will this fix my specific problem?
This module will correct issues directly caused by a faulty BCM. While the symptoms listed are very common for BCM failure, we always recommend proper diagnostics to confirm the BCM is the root cause before ordering. Check for good power and ground at the module and scan for communication codes.
Where is the BCM located on my 2010 Acadia?
On the 2007-2012 GMC Acadia, the BCM is typically located under the driver’s side of the dashboard, to the left of the steering column. Removing the lower knee bolster panel will be necessary to access it.
Do I need to return my old BCM?
This listing does not require a core return. You can keep or responsibly dispose of your old module.