Tired of Chasing Electrical Gremlins in Your GM Truck?
If you’re dealing with flickering lights, a dead instrument cluster, power windows with a mind of their own, or an HVAC system that’s quit working, you’re not alone. These frustrating and often intermittent issues are classic signs of a failing Body Control Module (BCM). As the central command center for your truck’s body electronics, a faulty BCM can wreak havoc, making your vehicle unreliable and unsafe. This replacement BCM, part number 15901388, is the definitive solution, pre-programmed to your vehicle’s VIN for a true plug-and-play fix.
Is Your Truck Exhibiting These Electrical Faults?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your module is the culprit. This is especially true if you’ve already checked fuses and relays.
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Headlights, taillights, or interior lights behaving erratically or not working at all.
- ✔ HVAC and climate control failures, including a blower motor that won’t turn on.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ The security system light flashing, causing a no-start or stalling condition.
- ✔ Erratic windshield wiper operation.
A Straightforward Guide to Your BCM Installation
One of the best features of our VIN-programmed modules is the simple installation. You don’t need to be a master mechanic to get this job done in your own driveway, typically in under 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the BCM: On most GM trucks and SUVs from this era, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black box with several large electrical connectors.
- Disconnect and Remove: Carefully unplug all wiring harnesses from the old BCM. They have release tabs that need to be pressed. Once disconnected, unbolt or unclip the old module from its mounting bracket.
- Install the New Module: Seat the new BCM into the mounting bracket and securely plug in all the wiring harnesses. You’ll hear a ‘click’ when they are properly connected.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions—lights, windows, locks, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, particularly if you had an airbag light, a professional scan tool may be needed to perform the ‘Setup SDM Primary Key in BCM’ function to clear the light. A brake pedal position relearn may also be required on certain models.
Guaranteed Fitment for Your GM Truck or SUV
This module is a direct replacement for part number 15901388 and is interchangeable with a wide range of other GM part numbers, including 25844480, 20939137, 22860591, and more. It is engineered to fit the following vehicles:
Escalade, Escalade ESV, Escalade EXT (2007-2013)
Chevrolet:
Avalanche 1500 (2007-2013)
Silverado 1500, 2500, 3500 (2007-2013)
Suburban 1500, 2500 (2007-2013)
Tahoe (2007-2013)
GMC:
Sierra 1500, 2500, 3500 (2007-2013)
Sierra Denali 1500, 2500, 3500 (2007-2013)
Yukon, Yukon XL (2007-2013)
Order your VIN-programmed 2011 Sierra Denali BCM today and restore your truck’s full electrical functionality with confidence.
Frequently Asked Questions
Do I need to have this BCM programmed by a dealership?
No. We pre-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 time and the high cost of dealer programming.
Is there a core charge for my old part?
Absolutely not. There is no core charge on this BCM. You can keep your old part or dispose of it without any need to send it back to us.
My airbag light is on. Will this fix it?
A faulty BCM is a common cause of the airbag light and DTC B1001. Replacing it will often solve the issue. However, after installation, you may need a professional scan tool to perform an ‘SDM Key Sync’ to get the new BCM to communicate with the airbag system and turn off the light.
What tools do I need to install this?
Installation is very straightforward. Typically, all you’ll need is a basic socket set to remove the mounting bolts and possibly a small flathead screwdriver to help release the connector tabs. No special electronic tools are required for the physical installation.
What if I have issues after installation?
This BCM comes with a one-year warranty for peace of mind. If you encounter any problems, our expert support team is here to help you troubleshoot and ensure your vehicle is running correctly.