Is Your Truck Experiencing Strange Electrical Issues?
If your 2015 Chevrolet Silverado 2500 is acting possessed—with flickering lights, malfunctioning power accessories, or random warning messages—a failing Body Control Module (BCM) is often the culprit. The BCM is the central nervous system for your truck’s body electronics, managing everything from your power windows and locks to the security system and interior lighting. When it fails, it can cause a cascade of confusing and frustrating problems that are difficult to diagnose.
We recently had a 2015 Sierra 1500 (which uses the same BCM) come into the shop with a bizarre list of complaints. The customer said his radio would turn off randomly, the driver’s side window wouldn’t go down, and occasionally the horn would honk when he used the turn signal. He’d already replaced the battery and checked all the fuses. After hooking up our diagnostic scanner, we saw multiple communication errors pointing towards the BCM. Instead of a dozen separate problems, it was one single faulty module causing all the chaos. A programmed replacement BCM had the truck behaving perfectly in under an hour.
The Simple, No-Dealer-Visit Solution
Replacing a BCM isn’t as simple as swapping parts. A new module from the dealership requires expensive and time-consuming programming to sync it with your truck’s unique VIN, security system, and specific options. Our unique cloning service completely eliminates this hassle. By sending us your original BCM, we can perform a direct data transfer to a replacement unit. This means the module you receive back is a perfect digital twin of your original, ready for a true plug-and-play installation. All your keys, remotes, and factory settings will work exactly as they did before.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, or mirrors.
- ✔ Interior or exterior lights (headlights, dome lights) staying on or not turning on at all.
- ✔ The anti-theft or security system light flashing, preventing the engine from starting.
- ✔ False warnings on the instrument cluster (e.g., ‘Door Ajar’ when all doors are closed).
- ✔ Unresponsive climate control or radio systems.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Rapid battery drain while the vehicle is parked.
Restoring Your 2015 Silverado 2500 BCM Functionality
Our process is designed to be straightforward and get you back on the road quickly. Once you place your order, we will contact you with clear instructions for shipping your original module to our facility. Our technicians will then meticulously extract the data and program the replacement unit. We handle all the complex technical work, so you don’t have to. The module is then promptly shipped back to you, ready for installation.
Installation and Post-Install Notes
Installation is typically straightforward, as the BCM is located under the steering column. Once installed, most vehicles will start and function perfectly. However, in some cases, additional synchronization procedures may be necessary:
- 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 re-establishes communication between the airbag system and the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be required to ensure correct operation of the brake lights and traction control system.
Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Guaranteed Compatibility
This BCM is a direct replacement for the following part numbers: 13592137, 13506935, 13506936, 13587704, and 13594764. It is compatible with a wide range of 2015-2018 GM vehicles, including the Chevrolet Silverado, GMC Sierra, Cadillac Escalade, Chevrolet Tahoe, and more. Please verify your part number and check the fitment list to ensure compatibility.
Frequently Asked Questions
Why do I have to send you my original BCM?
Your original BCM contains critical data specific to your truck, including the VIN, security information for your keys, and settings for your vehicle’s options. By cloning this data, we create a plug-and-play module that works immediately without requiring a trip to the dealer for expensive programming.
Will I need to get new keys made?
No. Because we transfer all the security data from your old module, your existing keys and key fobs will work perfectly with the replacement BCM.
How long does the programming service take?
We typically complete the cloning and programming process within 1-2 business days of receiving your original module. We then ship the replacement unit back to you with tracking information.
Can I drive my truck without the BCM?
No, your vehicle will not start or run without the Body Control Module installed, as it is a critical part of the vehicle’s security and electronic systems.
What if the airbag light comes on after I install it?
This can occasionally happen. It means the BCM needs to be electronically ‘introduced’ to the airbag control module (SDM). A repair shop with a professional-grade scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve this.