Is Your Silverado 3500 Plagued by Electrical Gremlins?
The Body Control Module (BCM) is the central command center for your truck’s body electronics. It manages a vast array of functions, from power windows and door locks to the security system and interior lighting. When the BCM starts to fail, it can create a cascade of bizarre, frustrating, and seemingly unrelated electrical problems that can be difficult to diagnose. If your truck is acting possessed, a faulty BCM is a very likely culprit.
From the Diagnostic Bay
We had a 2015 Sierra 2500 (which uses a similar system) come into the shop with a complaint of the radio randomly turning off and the dome lights flickering. The owner had already replaced the battery and alternator with no success. After hooking up our professional scan tool, we found a slew of communication error codes pointing towards the BCM. The internal circuitry was failing, causing data corruption on the truck’s network. A simple swap with our programmed BCM solved every single issue, saving the customer from chasing down endless electrical dead ends.
Symptoms of a Failing Body Control Module
- ✔ Power windows, locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or failing to activate.
- ✔ The security system acting up, causing false alarms or key fob recognition issues.
- ✔ “Service Theft Deterrent System” or other warnings appearing on the instrument cluster.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ Windshield wipers behaving erratically or not parking in the correct position.
The Plug-and-Play Solution: Our BCM Cloning Service
Replacing a modern BCM isn’t as simple as swapping the part. The module is programmed with your truck’s specific Vehicle Identification Number (VIN) and a unique configuration for its options. A standard used BCM will not work correctly and will likely prevent the vehicle from starting. This is where our service is essential. We solve this problem by providing a professional cloning service for your 2015 Silverado 3500 BCM. You simply send us your original module, and we transfer all the critical data—VIN, key information, and factory settings—to this replacement unit. When you receive it back, it’s a true plug-and-play installation, with no need for expensive dealership programming.
How The Process Works:
- ✔ Place Your Order: Complete your purchase through our secure checkout.
- ✔ We Contact You: We will reach out with clear, simple instructions for shipping your original BCM to our facility.
- ✔ We Program Your Part: Once we receive your module, our technicians will perform a full data transfer to the replacement unit, typically within 1-2 business days.
- ✔ We Ship It Back: We ship your newly programmed BCM back to you. You’ll receive tracking information so you know exactly when it will arrive.
Installation and Post-Install Notes
Physically installing the 2015 Silverado 3500 BCM is straightforward for a DIYer with basic tools. It’s typically located under the steering column. Always disconnect the negative battery terminal before starting. After installation, while our programming makes the unit plug-and-play, some vehicle systems may require a relearn procedure:
- Airbag System Sync: In some cases, the airbag warning light may illuminate after installation. This requires a “Setup SDM Primary Key in BCM” procedure with a professional-grade scan tool to sync the modules and clear the light.
- Brake Pedal Position Relearn: A brake pedal position sensor recalibration might be necessary to ensure proper brake light and traction control functionality.
Always consult a factory service manual or a qualified technician if you are unsure about any part of the installation process.
This computer will fit the following part numbers: 13592137 13506935 13506936 13587704 13594764
This part will fit these makes and models with these options
CORVETTE 15 Body Control (BCM); (LH dash)
IMPALA 15-16 Body Control (BCM); VIN 1 (4th digit, New Style), (LH dash), ID 13587704
SIERRA 1500 PICKUP 15 Body Control (BCM); (under steering column)
SIERRA DENALI 1500 15 Body Control (BCM); (under steering column)
SUBURBAN 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
SILVERADO 3500 PICKUP 15 Body Control (BCM); (under steering column), ID 13587704
XTS 15 Body Control (BCM); (left front hinge pillar)
YUKON XL 1500 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
ATS 15 Body Control (BCM); (on firewall)
ESCALADE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
CTS 15 Body Control (BCM); Sdn, (LH dash)
SIERRA 2500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
SILVERADO 2500 PICKUP 15 Body Control; (under steering column), ID 13587704
SONIC 15-18 Body Control (BCM); (RH rear quarter panel)
TAHOE 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
CTS 16 Body Control (BCM); (LH dash), ID 13587704
ESCALADE ESV 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
SIERRA DENALI 3500 15 Body Control (BCM); (under steering column), ID 13587704
ATS 16 Body Control (BCM); (on firewall), ID 13587704
SIERRA 3500 PICKUP 15 Body Control (BCM); (LH firewall), ID 13587704
SIERRA DENALI 2500 15 Body Control (BCM); (under steering column), ID 13587704
SILVERADO 1500 PICKUP 15 Body Control (BCM); (under steering column)
YUKON 15 Body Control (BCM); (under steering column), w/model year break point (opt AVF)
Frequently Asked Questions
How does the cloning service work?
You purchase this BCM and then ship your original BCM to us. We use specialized equipment to extract the unique data (like VIN and security info) from your old module and flash it onto the replacement unit. This makes the new module an exact electronic match for your truck.
How long does the process take after you receive my BCM?
Our programming service is typically completed within 1-2 business days of us receiving your original module. We then ship the programmed replacement back to you.
Is this BCM truly plug-and-play after programming?
Yes, for the vast majority of vehicles. The module will have all the correct information to start and run your vehicle without any additional programming. In some rare cases, a minor relearn procedure like for the airbag or brake pedal sensor may be needed, which can be done with a high-end scan tool.
What if my original BCM is completely dead or unreadable?
In cases where the original module is severely damaged (e.g., by water or fire) and the data cannot be read, we may need to retrieve the necessary data from another module in your vehicle. Please contact us before ordering if you suspect your module is unreadable.
Where is the BCM located on my 2015 Silverado 3500?
On the 2015 Silverado 3500, the Body Control Module is typically located under the driver’s side of the dashboard, near the steering column.