Restore Control and End Electrical Gremlins
If you’re dealing with bizarre electrical issues in your 2002 GMC Yukon XL 2500 or another compatible GM vehicle, you know the frustration. Flickering lights, power windows with a mind of their own, a security system that won’t cooperate, or gauges going haywire—these are all classic signs of a failing Body Control Module (BCM). The BCM is the central command for your vehicle’s body electronics, and when it starts to fail, it can feel like your truck is haunted. This isn’t just an annoyance; it can be a serious safety and reliability issue.
We offer a straightforward, reliable solution. This is a direct-fit replacement Body Control Module, arriving at your door fully programmed to your vehicle’s specific VIN. We load it with the latest GM software updates, which often correct underlying issues the original modules had from the factory. By providing us with your VIN during checkout, you eliminate the need for an expensive trip to the dealership for programming. This is the fix that gets your truck’s features working correctly again, saving you time and hundreds of dollars in labor and towing fees.
A Technician’s Notebook
I remember a 2002 Silverado 2500 that came into my bay with a complaint of the interior lights staying on and the radio presets constantly resetting. The owner had already replaced the battery and checked all the fuses. A quick scan showed a slew of U-series communication codes, pointing to a network issue. After isolating the circuits, all signs pointed to an internal failure in the BCM. These modules are the traffic cops for so many systems—when they fail, they cause chaos. We installed a VIN-programmed BCM just like this one, and within an hour, every single issue was resolved. The customer was thrilled to avoid a multi-day stay at the dealership.
Is Your GM Truck or Van Showing These Signs?
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights flickering, staying on, or not working at all.
- ✔ The security light is illuminated on the dash, or the vehicle won’t start due to a false security trigger.
- ✔ Gauges on the instrument cluster behaving erratically or not reading correctly.
- ✔ Intermittent loss of communication codes, such as U1000, stored in other modules.
- ✔ Radio or climate control systems functioning intermittently.
Your Straightforward BCM Installation Guide
Installing your new 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 before starting any electrical work.
- Locate the BCM: On most GM trucks (Silverado, Sierra, Tahoe, Yukon), the BCM is located under the driver’s side of the dashboard, near the steering column. On vans (Astro, Safari), it’s typically behind the center dash panel.
- Remove Trim Panels: Carefully remove any plastic trim or panels necessary to access the module. These usually pop off or are held by a few screws.
- Unplug and Unbolt: Disconnect the multiple color-coded electrical connectors. They have release tabs that need to be pressed. Once unplugged, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed BCM into place. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Re-install any trim panels you removed. Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, etc.
Important Post-Installation Notes
While this module is plug-and-play for most functions, some vehicles may require additional steps. If your airbag warning light comes on, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure to sync the systems. Similarly, some models may require a ‘Brake Pedal Position Relearn’ for proper brake light and traction control operation. Always consult a factory service manual for your specific vehicle if you are unsure.
Verified Fitment for These GM Vehicles
This BCM is a direct replacement for part numbers 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU. It is guaranteed to fit the following models:
- 2002-2005 Chevrolet Astro Van
- 2002-2005 GMC Safari Van
- 2002 Chevrolet Avalanche 1500 (4×2)
- 2002-2005 Chevrolet Blazer S10 / GMC Jimmy S15
- 2002-2004 Chevrolet S10 / GMC Sonoma
- 2002 Cadillac Escalade (4×2)
- 2002 Chevrolet Silverado & GMC Sierra 1500, 2500, 3500 & Denali
- 2002 Chevrolet Suburban & GMC Yukon XL 1500 (4×2), 2500
- 2002 Chevrolet Tahoe & GMC Yukon (4×2)
Frequently Asked Questions
Do I need to program this BCM?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN at checkout, and it will arrive ready to install with the latest GM software.
What is a BCM and what does it control?
The Body Control Module (BCM) is a computer that manages your vehicle’s non-engine related electronics. This includes power windows, door locks, interior/exterior lighting, the security system, wipers, and more.
Where is the BCM located on my 2002 Yukon XL 2500?
On the 2002 Yukon XL 2500 and similar GM trucks, the BCM is mounted under the dashboard on the driver’s side, typically near the steering column.
Is there a core charge?
No, there is absolutely no core charge. You can keep your old module, so there’s no need to worry about return shipping or waiting for a refund.
What if my airbag light is on after I install it?
In some cases, the new BCM needs to be electronically introduced to the airbag system (SDM). This is a simple procedure called ‘Setup SDM Primary Key in BCM’ that requires a professional-grade diagnostic tool to complete.