Are you battling frustrating electrical gremlins in your GM truck or van? Flickering lights, malfunctioning power windows and locks, or a security system that prevents your vehicle from starting 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 fails, it can cause a wide range of confusing and intermittent issues. This replacement BCM is the simple, reliable solution to restore full functionality to your vehicle.
This isn’t just a part in a box. We provide a comprehensive service by programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures compatibility and proper operation of all your vehicle’s options, loading it with the latest software updates from GM. This critical step eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that stay on, flicker, or don’t work at all.
- ✔ The security system light is illuminated, and the vehicle won’t start.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Wipers operating intermittently or not parking in the correct position.
- ✔ Inaccurate or dead gauges on the instrument cluster.
- ✔ Diagnostic trouble codes (DTCs) related to BCM communication errors.
Solving Problems with a Programmed 2002 Silverado BCM
A faulty BCM can make your dependable truck feel unreliable. Our service provides a direct-fit replacement for part number 15081796 and its alternatives (15063578, 15095334, 19208537, DKAK, DPNU). By ordering this part, you are getting a component that is ready for installation right out of the box. Simply provide your VIN during the checkout process, and our technicians will handle the programming, ensuring all systems communicate correctly once installed. This is the most straightforward path to resolving those pesky electrical faults and getting your truck back to 100%.
Installation and Post-Install Information
Installation is typically straightforward, as the BCM is often located under the steering column or in the center dash area. Once the new module is installed, please be aware of the following potential procedures:
- No Core Charge: You are not required to return your old BCM.
- Airbag System Sync: If the airbag warning light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool to sync the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control operation.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
What does the Body Control Module (BCM) do?
The BCM acts as the central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, the security system, and the instrument cluster.
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the BCM with the exact software and settings for your truck’s specific features and options. This makes the module plug-and-play and avoids a trip to the dealership.
Is this part difficult to install?
For most DIY mechanics, the installation is manageable. The BCM is usually located under the driver’s side dashboard. The most important part of the process is disconnecting the battery before you begin. The physical swap is typically just a few bolts and electrical connectors.
Will this fix my no-start problem?
If your no-start issue is caused by the factory security system (Passlock/VATS) and you see a ‘Security’ light on the dash, a failing BCM is a very common cause. This VIN-programmed BCM will resolve that issue.
What 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 high-level diagnostic tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to resolve this.
Do I need to return my old part?
No, there is no core charge for this part. You can keep or dispose of your original module.