Solve Your Truck’s Electrical Gremlins for Good
If your 2003-2007 GMC Sierra Denali is starting to feel haunted by electrical problems, you’re not alone. Flickering lights, a dead instrument cluster, power windows with a mind of their own, or a security system that prevents you from starting your own truckāthese are all classic signs of a failing Body Control Module (BCM). As the central command center for your truck’s body electronics, when the BCM goes down, it can cause a cascade of frustrating and seemingly unrelated issues. This replacement BCM, part number 10367690, is the definitive solution to restore order and reliability to your vehicle.
We take the guesswork and dealership hassle out of the equation with our professional Cloning Service. Simply send us your original BCM, and we will transfer its exact programming and vehicle-specific data to this replacement unit. The result? A true plug-and-play module that requires no expensive trip to the dealer for programming. It will arrive ready for installation, synced to your truck’s VIN and options, getting you back on the road quickly and affordably.
A Technician’s Notebook: The Misleading No-Start
A customer brought in a 2005 Sierra Denali that would randomly refuse to start. The battery and starter tested fine, but the security light was flashing on the dash. After spending hours chasing what seemed like a wiring issue, we pulled the BCM. A quick inspection of the circuit board revealed tell-tale signs of internal corrosion on one of the main processorsāa common failure point. After installing a cloned 2003-2007 Sierra Denali BCM, the truck fired right up and the security issue was gone. This is a perfect example of how a faulty BCM can mimic other, more common problems.
Is Your Sierra Denali Showing These Symptoms?
- ā Your power windows, door locks, or interior lights are working intermittently or not at all.
- ā The HVAC system is unresponsive, or the blower motor speed is erratic.
- ā An airbag warning light is illuminated on the dash, often with a B1001 diagnostic trouble code.
- ā The anti-theft or security system is malfunctioning, causing a frustrating no-start condition.
- ā The horn honks randomly or the windshield wipers activate on their own.
- ā You’re experiencing a parasitic battery drain that you can’t trace to any other source.
A Straightforward Guide to Installation
- ā Safety First: Begin by disconnecting the negative terminal from your truck’s battery to prevent any electrical shorts.
- ā Locate the BCM: On most Sierra Denali models, the BCM is located under the driver’s side of the dashboard, near the steering column. It’s a black plastic box with several large electrical connectors.
- ā Remove the Old Module: Carefully unplug the wiring harnesses from the original BCM. They have release tabs that need to be pressed. Once disconnected, unclip or unbolt the module from its mounting bracket.
- ā Install the New Module: Seat your new, pre-programmed BCM into the mounting bracket and securely plug in all the wiring harnesses. You should hear a click as they lock into place.
- ā Reconnect and Test: Reconnect the negative battery terminal. Start the truck and test all body functionsālights, windows, locks, wipers, and HVACāto confirm the repair was successful.
Post-Installation Note: In some cases, a professional scan tool may be needed to perform a ‘Setup SDM Primary Key in BCM’ procedure if the airbag light remains on, or a ‘Brake Pedal Position Relearn’. These are simple procedures for any qualified technician. This module is a direct replacement for part numbers 15116066, 15136225, 10367690, and others listed in the fitment chart.
Verified Vehicle Compatibility
This BCM is guaranteed to fit the following General Motors trucks and SUVs. Please verify your model and year range.
Chevrolet: Silverado 1500/2500/3500 (2003-2007 Classic), Avalanche 1500/2500 (2003-2006), Tahoe (2003-2006), Suburban 1500/2500 (2003-2006), Express Van (2004-2007 w/ PRP option)
Cadillac: Escalade, ESV, EXT (2003-2006)
Hummer: H2 (2003-2007)
Frequently Asked Questions About the 2003-2007 Sierra Denali BCM
Frequently Asked Questions
How does the Cloning Service work?
After you place your order, we’ll provide shipping instructions for you to send us your original BCM. Our technicians will then extract the unique data and transfer it to your new module. This ensures it works perfectly with your truck’s specific features and security system without any additional programming.
Do I need to send my old part back?
Yes, for the cloning process to work, we need your original module to read the data from it. After the service is complete, we will return your original module to you along with the newly programmed replacement. There is no core charge.
What tools do I need for installation?
Installation is very straightforward. Typically, you will only need a basic socket or wrench set to disconnect the battery and possibly a trim removal tool or screwdriver to access the BCM under the dash. No special electronic tools are required for the physical swap.
What happens if my airbag light is still on after installation?
This can happen occasionally. It means the BCM needs to be synced with the airbag system’s Supplemental Deployment Module (SDM). A repair shop with a professional bidirectional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is this part covered by a warranty?
Absolutely. This module is backed by our one-year warranty, giving you peace of mind and confidence in your repair.