Restore Full Functionality to Your GM Truck or SUV
Are you chasing down frustrating electrical gremlins in your vehicle? Intermittent power windows, door locks with a mind of their own, a security light that won’t turn off, or interior lights that stay on and drain your battery are all classic signs of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of confusing and annoying problems. This isn’t just an inconvenience; it can affect your vehicle’s security and daily usability. Stop guessing and replace the faulty component with a reliable, pre-programmed solution.
This BCM is the definitive fix for your 2002 Suburban BCM and a wide range of other GM vehicles. We take the guesswork and high cost out of the repair. Simply provide your vehicle’s VIN during checkout, and our experts will program the module with the latest official GM software specifically for your truck or SUV. This means no expensive trips to the dealership for programming. It arrives at your door ready for installation, saving you time, money, and headaches.
Case Study: A Tricky Diagnosis
I remember a 2002 Sierra 1500 that rolled into my bay with a complaint that would drive any owner crazy: the battery was dead every morning. The owner had already replaced the battery and alternator. After checking for parasitic draws, I noticed the interior dome light was faintly glowing even when the truck was off. A scan tool showed a loss of communication with the BCM (U1000). The internal circuits of the original BCM had failed, preventing it from properly shutting down the lighting circuit. Installing a new, correctly programmed BCM didn’t just fix the light; it resolved the battery drain and restored the owner’s confidence in his truck. This is a text-book failure I’ve seen dozens of times on these platforms.
Is Your GM Vehicle Showing These Symptoms?
- ✔ Power windows, mirrors, or door locks operate erratically or not at all.
- ✔ The security or anti-theft light is illuminated, potentially causing a no-start condition.
- ✔ Interior or exterior lights stay on, flicker, or won’t turn on.
- ✔ The horn sounds randomly or doesn’t work.
- ✔ Wipers behave unpredictably.
- ✔ Communication Diagnostic Trouble Codes (DTCs) like U1000, U1016, or B1001 are present.
- ✔ The radio or instrument cluster display acts strangely.
A Straightforward Guide to BCM Installation
Replacing the BCM is a manageable job for a DIYer with basic tools. The location varies slightly by model, but the process is similar.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait a few minutes before beginning.
- Locate the BCM: On most trucks (Silverado, Sierra, Tahoe, Suburban), the BCM is located under the driver’s side of the dashboard, near the steering column. On vans (Astro, Safari), it’s often behind the center dash panel.
- Remove Connectors: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Do not force them.
- Swap the Module: Unbolt or unclip the old BCM from its mounting bracket. Install the new module in its place.
- Reconnect Everything: Plug the electrical connectors firmly into your new BCM. Reconnect the negative battery terminal.
- Perform Final Steps: Start the vehicle. While our programming handles the critical functions, some vehicles may require a ‘Brake Pedal Position Relearn’ or an ‘Airbag System Sync’ if the airbag light appears. This may require a bi-directional scan tool.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following models:
- Chevrolet Avalanche 1500: 2002 (4×2)
- Chevrolet Blazer S10: 2002-2005
- Chevrolet S10 Pickup: 2002-2004
- Chevrolet Silverado 1500/2500/3500 Pickup: 2002
- Chevrolet Suburban 1500/2500: 2002 (4×2 for 1500)
- Chevrolet Tahoe: 2002 (4×2)
- Chevrolet Astro Van: 2002-2005
- GMC Jimmy S15: 2002-2005
- GMC Sonoma S15 Pickup: 2002-2004
- GMC Sierra 1500/2500/3500 Pickup: 2002
- GMC Sierra Denali: 2002
- GMC Yukon & Yukon XL 1500/2500: 2002 (4×2 for Yukon/Yukon XL 1500)
- GMC Safari Van: 2002-2005
- Cadillac Escalade: 2002 (4×2)
Frequently Asked Questions
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the BCM with the exact software and settings your specific vehicle requires. This ensures all features work correctly right out of the box, eliminating the need for a dealer visit.
Is this a simple plug-and-play installation?
Yes, for the most part. The module is physically plug-and-play. Because it comes pre-programmed, you will not need to perform the main security relearn. However, some models may require a simple brake pedal position relearn or an airbag system sync, which can sometimes require a professional scan tool.
Do I need to return my old BCM?
No. There is no core charge for this part. You can keep your original module.
What happens if my airbag light comes on after installation?
This can happen occasionally. It means the new BCM needs to be electronically ‘introduced’ to the airbag’s computer (SDM). A repair shop with a professional diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the system and turn off the light.
Will this fix my ‘Service 4WD’ message?
While the BCM communicates with many systems, a ‘Service 4WD’ message is typically caused by the Transfer Case Control Module (TCCM) or a faulty encoder motor or switch, not the BCM.
What tools do I need for the job?
Basic hand tools are all that’s required for the physical swap, typically a socket set to remove trim panels and unbolt the module bracket, and a flathead screwdriver or trim tool to help with electrical connectors.