Restore Full Electrical Function to Your GM Truck
Are you battling a cascade of strange electrical issues in your truck? Unresponsive power windows, flickering lights, a malfunctioning security system, or erratic HVAC controls are common signs of a failing Body Control Module (BCM). The BCM acts as the central nervous system for your vehicle’s body electronics, and when it fails, it can make driving frustrating and unsafe. This genuine GM Body Control Module, interchangeable with part number 22860591, is the definitive solution for a wide range of 2007-2013 GM trucks and SUVs, including the Chevrolet Silverado, GMC Sierra, Tahoe, and Escalade.
From the Diagnostic Bay
We had a 2013 GMC Sierra 3500 in the shop that was a real head-scratcher. The owner had spent weeks chasing what he thought was a grounding issue. The radio would cut out, the dome light would stay on, and the power locks worked only when they wanted to. He’d cleaned every ground he could find. After plugging in our scanner, we saw multiple communication loss codes with various modules. Instead of a bad ground, the issue was a failing BCM that was corrupting the data network. Installing a VIN-programmed module like this one resolved all the ghost-like problems in under 10 minutes. It’s often the central hub, not the individual components, that’s the source of widespread electrical chaos.
Symptoms of a Failing Body Control Module
- âś” Power windows, door locks, or mirrors operating intermittently or not at all.
- âś” Interior or exterior lights staying on, flickering, or failing to turn on.
- âś” HVAC and climate control functions not working correctly.
- âś” Vehicle security system acting erratically, or causing no-start conditions.
- âś” Airbag warning light illuminated on the dash, often with DTC B1001.
- âś” Wipers behaving unpredictably or not parking in the correct position.
- âś” A variety of seemingly unrelated diagnostic trouble codes (DTCs) stored in the system.
Solving Electrical Issues with a 2013 Sierra 3500 BCM
Don’t let a faulty module keep your truck off the road. This replacement BCM is the most reliable and straightforward way to restore your vehicle’s electronic systems to factory-perfect condition. We take the guesswork and hassle out of the repair process.
- âś” Plug & Play Installation: This module arrives pre-programmed to your vehicle’s specific VIN. This crucial step ensures that all existing options and security features work immediately upon installation, eliminating the need for an expensive trip to the dealership for programming.
- âś” Restored Functionality: Regain complete and reliable control over all body electronics, from your power seats to your headlights, for a safer and more comfortable driving experience.
- âś” OEM-Quality Standard: Built to meet or exceed original equipment specifications, this module ensures long-lasting durability and dependable performance, backed by a one-year warranty.
- âś” No Core Charge: We don’t require you to send your old part back. This saves you time, money, and the hassle of dealing with core returns.
Installation and Post-Install Procedures
Physically installing the 2013 Sierra 3500 BCM is simple. It is typically located under the driver’s side dashboard near the steering column and can be swapped out in minutes. However, depending on your vehicle’s specific configuration, a couple of electronic relearn procedures may be necessary after installation:
- Airbag System Sync: If the airbag warning light is on after you install the new BCM, a technician will need to use a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: In some cases, a brake pedal position sensor recalibration may be needed to ensure proper brake light and traction control operation.
Always consult a factory service manual or a qualified technician if you are unsure about these procedures. By providing your VIN at checkout, you ensure you receive a part that is ready for your specific vehicle, making the repair as smooth as possible.
Frequently Asked Questions
What does a BCM do on my 2013 GMC Sierra 3500?
The Body Control Module (BCM) is a computer that manages and controls many of your truck’s non-engine related electronic features. This includes power windows, locks, lights, wipers, the security system, and HVAC controls.
Do I need to get this module programmed at the dealership?
No. We pre-program the module to your vehicle’s VIN before shipping. This makes it a plug-and-play solution, saving you the time and expense of a dealership visit for programming.
Is this part difficult to install?
The physical installation is straightforward for anyone with basic mechanical skills. The BCM is usually located under the driver’s side dash and held in by a few clips or bolts. The entire swap typically takes less than 15 minutes.
My airbag light is on after installation, what do I do?
This is a normal security measure. The new BCM needs to be electronically introduced to the airbag system (SDM). A qualified technician with a high-level scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.
What happens if I don’t replace a failing BCM?
Ignoring a failing BCM can lead to worsening electrical problems, potential security system lockouts that prevent the vehicle from starting, and safety issues like non-functioning lights or wipers.
Is there a core charge for this part?
No, there is no core charge. You can keep your old module without any penalty, saving you the hassle and cost of return shipping.