Restore Order to Your Truck’s Electronics
If you’re dealing with bizarre electrical gremlins in your GM truck or SUV, you know how frustrating it can be. One minute the power windows work, the next they don’t. The radio might shut off randomly, or you’re seeing strange warning lights on the dash. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times, and the culprit is often a failing Body Control Module (BCM). This isn’t just an inconvenience; a faulty BCM can affect vehicle security and even prevent it from starting. It’s the central nervous system for your vehicle’s comfort and convenience features, and when it goes, chaos ensues.
This is your direct, no-hassle solution. We’re offering a replacement Body Control Module, part number 22737275, that arrives at your doorstep fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This means you can bypass the expensive and time-consuming trip to the dealership for programming. We handle the complex part, so you can focus on the straightforward installation. Simply provide your VIN at checkout, and we’ll load the latest GM software onto the module, making it ready to install right out of the box. This is the most efficient way to get your 2012-2014 Sierra BCM or related GM vehicle back to 100% functionality.
A Technician’s Notebook: The Silverado That Wouldn’t Start
A 2013 Silverado 2500 was towed into my bay with a classic no-start condition. The owner had already replaced the battery and was convinced the fuel pump was dead. He wasn’t getting fuel pressure. I scanned the truck and found no fuel pump codes, but I did see a U0140 code: ‘Lost Communication with Body Control Module.’ Instead of going straight for the fuel tank, I checked the BCM’s outputs. Sure enough, the BCM wasn’t sending the signal to energize the fuel pump relay. A failing BCM was masquerading as a bad fuel pump. We installed a pre-programmed BCM, and the truck fired right up. It’s a perfect example of how a BCM failure can send you chasing the wrong parts, costing you time and money.
Is Your Truck Showing These Symptoms?
- âś” Power windows, door locks, or mirrors operating intermittently or not at all.
- âś” Interior dome lights or exterior lights staying on or not turning on.
- âś” The security light is on, and the vehicle won’t start (anti-theft system activated).
- âś” Erratic gauge behavior or warning lights (like ABS or Airbag) illuminating for no reason.
- âś” Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or other ‘U’ (network) codes stored in the system.
- âś” Radio or infotainment system shutting down unexpectedly.
A Straightforward Guide to Installation
Installing your new BCM is a manageable job for a confident DIYer. The module is typically located under the driver’s side of the dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning any electrical work.
- Locate the BCM: On most of these GM trucks and SUVs, it’s mounted to a bracket under the dash, to the left of the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the multiple electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unbolt the module from its bracket.
- Install the New Module: Bolt your new, pre-programmed BCM into place. Firmly reconnect all electrical connectors, ensuring each one clicks securely into place.
- Reconnect Power: Re-attach the negative battery terminal.
- Perform Final Checks: Start the vehicle and test all body functions—windows, locks, lights, radio, etc. Note the post-installation procedures below, as some relearn steps may be necessary.
Important Post-Installation Information
While this BCM is programmed for your vehicle, certain security and sensor systems may require a ‘handshake’ with the new module. Please be aware of the following potential procedures:
- Airbag System Sync: If your airbag warning light is on 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: Some models may require a brake pedal position sensor relearn to ensure correct brake light operation and to keep the traction control system happy.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 22737275, 22846365, and 22846364. It is confirmed to fit the following models:
- 2012-2013 Chevrolet Avalanche 1500
- 2012-2014 Cadillac Escalade, Escalade ESV, Escalade EXT
- 2012-2013 Chevrolet Silverado & GMC Sierra 1500
- 2012-2014 Chevrolet Silverado & GMC Sierra 2500/3500
- 2012-2014 Chevrolet Suburban 1500
- 2012-2013 Chevrolet Suburban 2500
- 2012-2014 Chevrolet Tahoe
- 2012-2014 GMC Yukon & Yukon XL 1500
- 2012-2013 GMC Yukon XL 2500
And best of all? There is no core charge. You don’t need to worry about sending your old, faulty module back to us.
Frequently Asked Questions
What exactly does a Body Control Module do?
The BCM acts as the main computer for your vehicle’s non-engine related functions. It controls the power windows, locks, security system, lighting, wipers, and more, ensuring everything works as you command it.
Why do you need my VIN to program the BCM?
Every vehicle has a unique set of options (e.g., power folding mirrors, specific lighting packages). Programming the BCM with your VIN ensures it knows exactly which features your truck has, allowing it to work perfectly without any conflicts.
Is this a difficult part to replace myself?
For someone with basic mechanical skills, it’s very manageable. The main challenge is typically accessing the module under the dashboard. Since we handle the programming, the physical swap is straightforward.
What happens if my airbag light comes on after I install it?
This is a normal security measure. The new BCM needs to be electronically introduced to the airbag module (SDM). This requires a ‘Setup SDM Primary Key’ procedure with a bidirectional scan tool, which can be done by most professional repair shops.
Do I have to send my old BCM back?
No. We do not require a core return for this part. You can keep your original module.