Tired of Electrical Gremlins in Your GM SUV?
If you’re dealing with flickering lights, power windows and locks that have a mind of their own, or a security light that prevents your 2000 GMC Yukon or Tahoe from starting, you’ve likely met the frustrating reality of a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can cause a cascade of bizarre, seemingly unrelated issues. This isn’t just an annoyance; it can affect your vehicle’s security and daily reliability. We provide a dependable, straightforward solution to get your truck back to 100%.
This isn’t just a replacement part; it’s a complete service. We take the hassle out of the repair by pre-programming this BCM with the latest GM software updates, specifically matched to your vehicle’s VIN. This means you can skip the expensive trip to the dealership for programming. Just provide your VIN at checkout, and we’ll ship a module that’s ready for installation, saving you both time and money.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic interior or exterior lighting behavior.
- ✔ The security or anti-theft system light stays on, causing a no-start condition.
- ✔ Inconsistent or dead instrument cluster gauges.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Problems with the radio or climate control systems.
A Technician’s Notebook
A customer’s 2000 Yukon came in last week with a classic BCM failure story. The power locks would cycle randomly while driving, the dome light would flicker, and occasionally, the truck would refuse to start, flashing the security light. They had already replaced the battery and checked the grounds. After connecting my scan tool, I saw multiple communication loss codes with the BCM. Instead of a complex wiring chase, we installed one of our pre-programmed modules. The entire host of problems vanished instantly. It’s a common failure point on these GMT800 platforms, and a correctly programmed BCM is almost always the fix.
Your Straightforward BCM Installation Guide
Replacing the 2000 Yukon BCM is a manageable job for a DIYer. The module is typically located on the driver’s side of the dashboard.
- Safety First: Always disconnect the negative battery terminal and wait a few minutes before starting any electrical work.
- Locate the BCM: On most of these models, it’s found under the driver’s side dash, often near the steering column or parking brake pedal assembly.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old BCM from its mounting bracket.
- Install the New Module: Mount the new, pre-programmed BCM in the same location and securely reconnect all electrical connectors.
- Reconnect Battery: Re-attach the negative battery terminal.
- CRITICAL Final Steps: After installation, two procedures are necessary. First, the airbag light will be on. A scan tool with GM capabilities is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the BCM with the airbag module. Second, some vehicles may require a brake pedal position sensor recalibration to ensure proper brake light and ABS function.
Verified Fitment for Your GM SUV
This module is a direct replacement for part number 9377486 and is compatible with the following vehicles. Please verify your original part number matches one of the cross-references (16257155, 15136876, 09377486) for guaranteed compatibility.
- 2000 GMC Yukon (exc. Denali)
- 2000 GMC Yukon XL 1500
- 2000 GMC Yukon XL 2500
- 2000 Chevrolet Tahoe
- 2000 Chevrolet Suburban 1500
- 2000 Chevrolet Suburban 2500
Frequently Asked Questions
What exactly does a BCM do?
The Body Control Module (BCM) acts as the central computer for your vehicle’s non-engine related functions. It controls the power windows, locks, lights, security system, wipers, and other comfort and convenience features.
Is this a simple plug-and-play part?
Almost. Because we pre-program it to your VIN, it eliminates the most difficult step. However, after physical installation, you will need to perform an airbag system key setup and potentially a brake pedal recalibration using a compatible scan tool to ensure all systems function correctly and no warning lights are present.
What information do you need from me?
After you complete your purchase, we require your 17-digit Vehicle Identification Number (VIN). This allows us to load the correct, vehicle-specific software and updates onto the BCM before shipping it to you.
Why is my airbag light on after installing the new BCM?
This is normal. The BCM and the airbag module (SDM) are linked for security. A ‘Setup SDM Primary Key in BCM’ procedure must be performed with a diagnostic tool to re-establish this link and turn off the light. This is a required safety step.
Will this 2000 Yukon BCM fix my intermittent starting problem?
If your starting problem is related to the security system (e.g., a flashing security light on the dash), then yes, a new BCM is very often the solution as it controls the Passlock anti-theft system on these vehicles.