Restore Full Functionality to Your GM Truck or SUV
If you’re battling a frustrating array of electrical problems in your 2013 Silverado 3500—from a dead instrument cluster to power windows with a mind of their own—the Body Control Module (BCM) is the likely culprit. As the central command for your vehicle’s body electronics, a failing BCM can create chaos. This replacement BCM, equivalent to part number 15878753, is the definitive solution. Through our expert cloning service, we transfer your truck’s original data to this unit, making it a true plug-and-play fix that eliminates the need for expensive dealership programming.
A Technician’s Notebook: The Ghost in the Machine Case
A customer brought in a 2011 Sierra 2500, a sister truck to the Silverado, with a laundry list of complaints: the radio would cut out, the HVAC blower was intermittent, and the security light would flash, occasionally preventing it from starting. They had already replaced the battery and checked fuses. My initial scan showed a slew of communication codes (U-codes) and a BCM-specific fault, B1001. After years of seeing this pattern, I knew it wasn’t a wiring issue. The BCM’s internal processor was failing. We installed one of our cloned BCMs, and every single issue vanished instantly. This isn’t just a part replacement; it’s a complete electrical system restoration.
Is Your Silverado Showing These Symptoms?
- ✔ Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- ✔ HVAC system failures, such as a blower motor that won’t turn on or stays stuck on high.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Vehicle security system malfunctions, leading to no-start or stalling conditions.
- ✔ Strange instrument cluster behavior or warning messages that appear without cause.
- ✔ Communication errors with other modules on the network.
Your 5-Minute BCM Installation Guide
Getting your truck back to normal is easier than you think. For most DIYers and professionals, this is a quick, straightforward job.
- Safety First: Always disconnect the negative terminal from your truck’s battery before working on any electronic components.
- Locate the BCM: On your Silverado, the BCM is located under the driver’s side of the dashboard, typically to the left of the steering column. It’s a black box with several large multi-pin connectors.
- Swap the Module: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Remove any retaining screws or clips holding the module in place and take it out.
- Install the New BCM: Mount your new, pre-programmed BCM in the same location. Firmly reconnect all the electrical connectors, ensuring they click securely into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions—lights, windows, locks, wipers, and HVAC—to confirm the repair was successful.
Post-Installation Note: In some cases, specific relearn procedures may be required. If the airbag light remains on, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” function. Similarly, a “Brake Pedal Position Relearn” might be necessary. These are standard procedures for any professional technician.
Verified Fitment for Your GM Truck or SUV
This BCM is a direct replacement for a wide range of General Motors vehicles and interchanges with numerous part numbers, including 25835966, 15263363, 15263497, 15878753, 15284816, 15943678, and more. It is confirmed to fit the following models:
ESCALADE & ESV/EXT 07-11
SIERRA 1500 PICKUP 07-11
SIERRA 2500 PICKUP 07-13
SIERRA 3500 PICKUP 07-13
SIERRA DENALI (All) 07-13
SILVERADO 1500 PICKUP 07-11
SILVERADO 2500 PICKUP 07-13
SILVERADO 3500 PICKUP 07-13
SUBURBAN 1500/2500 07-11
TAHOE 07-11
YUKON & YUKON XL 07-11
Frequently Asked Questions
Frequently Asked Questions
What is a BCM cloning service?
Our cloning service involves reading the essential, vehicle-specific configuration data (like VIN, mileage, and security information) from your original BCM and writing it onto the replacement unit. This ensures the new module is a perfect match for your truck, avoiding any need for dealership programming.
Do I need to send my old BCM to you?
Yes. For the cloning service to work, you must send us your original module after placing your order. We perform the service and ship both your original module and the ready-to-install replacement back to you. We do not keep your old part.
Will this fix my airbag light with a B1001 code?
A faulty BCM is a very common cause of the B1001 code. Replacing it often resolves the issue, but after installation, the airbag system may need to be synced using a professional scan tool to clear the light. This is a standard post-repair procedure.
Is this a difficult part for a DIYer to install?
Not at all. The physical installation is very simple, requiring basic hand tools and about 5-10 minutes. It’s located under the dash and involves unplugging the old unit and plugging in the new one. Our cloning service handles the complicated software side for you.
Is there a core charge for this part?
No, there is no core charge. Since we require your original module for the cloning process, we simply return it to you along with the newly programmed replacement.