Restore Full Electrical Control to Your GM Truck or SUV
Are you battling frustrating electrical gremlins in your 2003-2006 GMC Yukon? When your power windows, door locks, or HVAC system start acting erratically, the culprit is often a failing Body Control Module (BCM). As the central command center for your vehicle’s body electronics, a faulty BCM can cause a cascade of problems that are difficult to diagnose. This replacement module, part number 15136877, is the definitive solution to restore your vehicle’s functionality and peace of mind. Our unique cloning service means this unit arrives ready for a true plug-and-play installation, saving you hundreds in dealership programming fees.
From the Diagnostic Bay: The Case of the Haunted Yukon
A customer brought in a 2005 Yukon XL last month with a list of bizarre symptoms: the radio would turn on by itself, the driver’s side window wouldn’t go down, and the HVAC blower was completely dead. They had already replaced the blower motor resistor with no luck. In my 20+ years of experience, a cluster of unrelated electrical issues like this almost always points to one of two things: a major grounding problem or a failing BCM. After confirming all the main body grounds were clean and tight, we scanned the vehicle and found a handful of communication codes (U-codes) and a B1001 code. This confirmed our suspicion. The original BCM was failing internally. We installed one of our cloned modules, and within 10 minutes, every single issue was resolved. The customer was thrilled to have their truck back to normal without a costly trip to the dealer.
Is Your Yukon Showing These Electrical Faults?
- ✔️ Intermittent or non-working power windows, door locks, or interior lights.
- ✔️ HVAC controls are unresponsive, or the blower motor works sporadically.
- ✔️ The security system acts up, causing a no-start condition or the alarm to go off randomly.
- ✔️ An airbag warning light is illuminated on the dash, often with a DTC like B1001 (Option Configuration Error).
- ✔️ Strange electrical behavior, such as the radio turning on or wipers activating without input.
- ✔️ A cluster of communication DTCs stored in the system.
The Advantage of Our Cloning Service
Forget about expensive dealership visits and programming hassles. With our complimentary cloning service, we transfer the critical data—including your vehicle’s specific options and VIN—from your original BCM to this replacement unit. This makes the new module a perfect digital match for your truck. The result is a simple, plug-and-play installation that restores all original functions seamlessly. Plus, there’s no core charge! We send your original module back with your newly programmed one, so you can keep it.
A Straightforward 5-Minute Installation Guide
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most 2003-2006 Yukon 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.
- ✔ Remove the Old Module: Carefully depress the locking tabs on each electrical connector and pull them straight out. The module itself is typically held in place by simple clips or a few small bolts. Remove it from its bracket.
- ✔ Install the New BCM: Snap the replacement module into the mounting bracket and firmly reconnect all electrical connectors. Ensure they click into place.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start your vehicle and test all functions: windows, locks, lights, wipers, and HVAC system to confirm the repair was successful.
Important Post-Installation Information
While our cloning service makes this a plug-and-play part for most functions, some vehicle systems may require a quick sync procedure. Please be aware of the following:
- Airbag System Sync: If your airbag warning light is on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be needed to ensure proper brake light operation and to satisfy the traction control system.
Verified Fitment for Your GM Truck or SUV
This BCM is a direct replacement for part number 15136877 and is compatible with a wide range of GM vehicles. It interchanges with part numbers 15116066, 10383536, 15136225, and many others. It is engineered to fit the following models:
Chevrolet: Tahoe, Suburban, Silverado 1500/2500/3500, Avalanche, Express Van (2002-2007)
Cadillac: Escalade, Escalade ESV, Escalade EXT (2003-2006)
Hummer: H2 (2003-2007)
Note: Specific options and model years apply. Please verify your part number or contact us with your VIN to ensure perfect compatibility.
Frequently Asked Questions
What does the BCM actually do on my Yukon?
The Body Control Module (BCM) is like a central computer for your vehicle’s comfort and convenience features. It controls non-engine related functions like the power windows, interior/exterior lights, door locks, security system, wipers, and the HVAC climate control system.
What is a ‘cloning service’ and why do I need it?
Cloning is the process of transferring your vehicle’s specific configuration data and VIN from your old BCM to the new one. This makes the replacement module a perfect electronic match, eliminating the need for expensive and time-consuming programming at a dealership. It makes the installation truly plug-and-play.
Do I need special tools for the installation?
No, in most cases, the installation requires only basic hand tools, such as a socket or wrench to disconnect the battery and possibly a small trim removal tool or screwdriver to access the module. The entire process typically takes less than 15 minutes.
What happens if the airbag light comes on after I install it?
This is a known possibility. The BCM and the airbag module (SDM) communicate for security. If the light appears, it simply means they need to be re-synchronized. A repair shop with a bi-directional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Is there a core charge for my old part?
No, there is absolutely no core charge. We require your original module to perform the cloning service, and we always return it to you along with your new, ready-to-install BCM.