Are you experiencing frustrating electrical issues in your GM truck or van? Flickering lights, malfunctioning power windows, or a security system that acts up on its own are common signs of a failing Body Control Module (BCM). The BCM is the central computer for your vehicle’s body electronics, and when it fails, it can cause a wide range of perplexing problems. This replacement BCM, part number 15747545, is the definitive solution to restore full functionality and reliability to your vehicle.
We make the repair process simple. Unlike the dealership, which requires costly programming and labor, our BCM arrives at your door pre-programmed to your vehicle’s specific Vehicle Identification Number (VIN). Simply provide us with your VIN after purchase, and we’ll flash the module with the latest GM software updates, ensuring it’s a direct, plug-and-play fit for your truck or van. Get back on the road with confidence, knowing your vehicle’s electronics are operating exactly as the factory intended.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights that flicker, stay on, or don’t work at all.
- ✔ The security or anti-theft system preventing the vehicle from starting.
- ✔ Intermittent operation of the radio or climate controls.
- ✔ False warning messages on the instrument cluster, such as ‘Service Vehicle Soon’.
- ✔ Windshield wipers activating on their own or not working when commanded.
Your Plug-and-Play 2003-2007 Sierra BCM Solution
This module is a direct replacement for a wide range of GM trucks and vans, eliminating the guesswork from your repair. It’s a reliable, cost-effective alternative to a dealership visit. We handle the complex programming so you don’t have to. Plus, with our no-core-charge policy, you can keep your original module without any extra fees or hassle.
Post-Installation Procedures
While this module is designed for a straightforward installation, some vehicles may require simple relearn procedures after the new BCM is connected. These are not always necessary but are important to be aware of:
- Airbag System Sync: If the airbag warning light is illuminated after installation, a professional scan tool is needed to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: To ensure proper brake light and traction control operation, a brake pedal position sensor recalibration may be required on certain models.
Please consult a factory service manual or a qualified technician for vehicle-specific instructions.
Guaranteed Fitment
This BCM is a direct replacement for part numbers: 15167329, 15194169, 15747545, 15136224, 15116065, 15198115, 15136876, and 10367689. It fits a wide variety of 2003-2007 Chevrolet Silverado, GMC Sierra, Express, Savana, and SSR models. Please verify your part number and check the fitment list to ensure compatibility.
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 electronic accessories like power windows, locks, lights, wipers, the security system, and more. It acts as the central hub for these functions.
How do I know if my BCM is the problem?
Common signs of a failing BCM include multiple, unrelated electrical issues happening at once. For example, if your power locks, interior lights, and radio are all acting erratically, the BCM is a likely culprit.
Is this part difficult to install?
For most models, the BCM is located under the steering column or in the center dash and is accessible with basic hand tools. The physical replacement is straightforward. Since we program it to your VIN, no further computer work is typically needed, though some minor relearn procedures may be required as noted.
What happens after I place my order?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. We will then program the BCM with the latest GM software specific to your vehicle before shipping it to you.
Do I need to send my old BCM back?
No. This product comes with no core charge, so you are not required to return your original part.
Will this BCM need additional programming at the dealer?
No, it arrives pre-programmed and ready for installation. In some cases, as described above, a simple relearn procedure for the airbag or brake pedal sensor may be necessary, which can be done by most repair shops.