Is Your GM Vehicle Plagued by Baffling Electrical Problems?
Are you chasing down electrical gremlins in your Chevrolet, GMC, or Cadillac? One moment the power windows work, the next they don’t. The security light flashes for no reason, or your key fob is suddenly unresponsive. These frustrating and often intermittent issues are classic signs of a failing Body Control Module (BCM). The BCM is the central nervous system for your vehicle’s body electronics, managing everything from interior lighting and power locks to the instrument cluster and security system. When it fails, it can create a cascade of confusing and unpredictable problems.
From the Diagnostic Bay
We had a 2015 GMC Sierra 1500 in the shop that was driving its owner crazy. It would randomly refuse to start, the radio display would go blank, and the power door locks would cycle on their own. The owner had already replaced the battery and checked all the main fuses. After hooking up our professional scan tool, we noticed communication errors with multiple systems, all pointing back to one central hub: the BCM. A failing BCM was intermittently dropping communication, causing chaos throughout the truck’s electronic systems. Replacing it with a properly programmed unit solved every single issue instantly.
Common Symptoms of a Failing BCM
- ✔ Intermittent or non-functional power windows, locks, and mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ False warnings on the instrument cluster, such as the security or airbag light.
- ✔ Key fob not being recognized, or remote start failing to engage.
- ✔ Malfunctioning climate control or radio functions.
- ✔ Unexplained battery drain when the vehicle is off.
- ✔ The vehicle’s anti-theft system preventing it from starting.
The Simple, No-Dealer-Visit Solution
Replacing a BCM isn’t as simple as swapping the part. A new module from the dealership is a blank slate; it requires expensive and complex programming to learn your vehicle’s specific VIN, mileage, and optional features. Our unique service eliminates that hassle entirely. This listing is for a replacement 2015-2019 GM Body Control Module that is made fully plug-and-play through our mail-in cloning service.
The process is straightforward:
- You purchase this BCM.
- We will contact you with instructions to ship your original BCM to our facility.
- Our expert technicians will perform a full data transfer, cloning all the critical information (VIN, mileage, key data, security settings) from your old module to this replacement unit.
- We ship the programmed replacement BCM back to you, ready for installation.
This method ensures a seamless installation without any need for a trip to the dealer or a specialized locksmith. You get a part that is perfectly matched to your vehicle’s configuration right out of the box.
Compatible Part Numbers:
This module is a direct replacement for the following part numbers: 13592137, 13506935, 13506936, 13587704, 13594764. Please verify that your original module has one of these numbers to ensure compatibility.
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)
Post-Installation Information
While our cloning service makes this a plug-and-play part, some vehicle systems may require a simple sync procedure after installation.
- Airbag System Sync: If the airbag warning light is illuminated after installation, a ‘Setup SDM Primary Key in BCM’ procedure must be performed with a professional scan tool. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct brake light operation and traction control performance.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we will provide you with shipping instructions to send us your original BCM. Once we receive it, we transfer all of its essential data to the replacement unit and ship it back to you, typically within 1-2 business days.
Is this BCM truly plug-and-play?
Yes. Because we clone the data from your original module, the replacement BCM will have your vehicle’s VIN, mileage, and security information already loaded. This means no additional programming is required for the module itself. Some simple system relearns may be needed, as noted above.
What if my original BCM is completely dead or ‘fried’?
In many cases, even if the BCM is non-functional in the vehicle, we can still extract the necessary data from the memory chip. Please contact us before ordering if your module has severe water or fire damage.
Do I need to return my old BCM after installation?
No, there is no core charge for this part. After we clone the data, we will return your original module along with the programmed replacement. You can keep it.
Will this fix my specific electrical problem?
This part will resolve issues directly caused by a faulty BCM. While the symptoms listed are common indicators, we always recommend a proper diagnosis by a qualified technician to confirm the BCM is the root cause before purchasing.