Are you battling frustrating electrical problems in your GM truck or van? Flickering lights, malfunctioning power windows, a security system that acts up, or an engine that won’t start can often be traced back to a single component: the Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of confusing and unpredictable issues. This replacement Body Control Module is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a straightforward installation.
From the Diagnostic Bay
We had a 2004 Chevy Astro van (a sibling to the GMC Safari) come into the shop with a classic case of BCM failure. The owner was at his wit’s end. The interior lights would stay on, the radio would randomly shut off, and sometimes the van just wouldn’t crank. He had already replaced the battery and checked the alternator. After a quick scan, we pinpointed the BCM. Installing a pre-programmed module like this one had the van running perfectly in under an hour, solving all the ghost-in-the-machine issues at once. It’s a common failure point on these platforms, but thankfully, it’s a simple fix with the right part.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional interior and exterior lights.
- ✔ Power windows, door locks, or mirrors not working correctly.
- ✔ Vehicle security system faults or false alarms.
- ✔ The instrument cluster behaving strangely or displaying incorrect information.
- ✔ Intermittent no-start or no-crank conditions.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Communication errors with other vehicle modules (DTC U-codes).
Why Choose Our Pre-Programmed GMC Safari Body Control Module?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle out of the repair by programming the module with the latest GM software updates using the VIN you provide. This ensures perfect compatibility and function with your vehicle’s specific options and systems. Simply provide your VIN after purchase, and we’ll handle the complex programming before it ships. This module is a direct replacement for multiple part numbers, including 15063578, 15081796, 15095334, 19208537, DKAK, and DPNU.
Installation and Post-Install Notes
Installation is typically plug-and-play. However, depending on your vehicle’s specific configuration, a couple of additional steps, known as relearn procedures, might be necessary. These can often be performed with a capable bi-directional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed to sync the new BCM with the airbag system.
- Brake Pedal Position Relearn: Some models may require a brake pedal position sensor recalibration to ensure proper brake light operation and stability control function.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation process.
Frequently Asked Questions
What is a BCM and what does it do?
The Body Control Module (BCM) is a computer in your vehicle that manages and controls a wide range of electronic accessories, such as power windows, locks, lights, wipers, and the security system.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information for programming.
Is this BCM difficult to install?
Because we pre-program the module, the physical installation is typically simple (plug-and-play). It’s usually located under the dash. However, some vehicles may require additional relearn procedures as noted in the description.
Do I need to send my old BCM back?
No, there is no core charge for this part. You can keep your original module.
Will this fit my 2002 Chevy Silverado?
Yes, this BCM fits a wide range of 2002-2005 GM trucks and SUVs, including the Silverado, Sierra, Tahoe, Yukon, Blazer, and more. Please verify your original part number matches one of the numbers listed: 15063578, 15081796, 15095334, or 19208537.
What if my airbag light comes on after installation?
This is a known possibility. It means the new BCM needs to be electronically introduced to the airbag module (SDM). A professional scan tool is required to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.