Is Your Cadillac or GM Vehicle Plagued by Bizarre Electrical Issues?
The Body Control Module (BCM) is the central command center for your vehicle’s body electronics. When it begins to fail, it can create a cascade of frustrating and seemingly unrelated problems. From power windows that have a mind of their own to a car that won’t start, a faulty BCM can make your vehicle feel unreliable and unsafe. Instead of paying exorbitant dealership fees for a new module and programming, our mail-in cloning service provides a simple, cost-effective, and reliable solution.
From the Diagnostic Bay
We recently worked on a 2015 Sierra 1500 where the owner was convinced it was haunted. The dome lights would flicker, the radio would randomly shut off, and he’d occasionally get a ‘Service Theft System’ message. He had already replaced the battery to no avail. A quick scan pointed to communication errors originating from the BCM. By cloning his original module’s data to one of our replacement units, we solved every single issue in one go. It’s a textbook example of how a failing BCM can mimic multiple other problems, and why a correctly programmed replacement is critical.
Common Symptoms of a Failing BCM
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Interior or exterior lights (headlights, taillights, dome lights) staying on, flickering, or not working at all.
- ✔ Malfunctioning windshield wipers or horn.
- ✔ Instrument cluster warning lights appearing for no reason.
- ✔ Security system issues, including ‘Service Theft Deterrent System’ warnings.
- ✔ A no-crank or no-start condition where the engine won’t turn over.
- ✔ Rapid battery drain (parasitic draw) when the vehicle is off.
How Our Simple Mail-In Programming Service Works
We’ve streamlined the process to get you back on the road as quickly as possible, without the need for a dealership visit. The process is simple:
- Place Your Order: Complete your purchase through our secure checkout.
- We Contact You: We will reach out with clear, step-by-step instructions on how to remove your BCM and where to ship it.
- Ship Your Original BCM: Send us your original, faulty BCM. This module contains the unique data your vehicle needs to function.
- We Clone The Data: Upon receipt, our technicians will perform a full data transfer from your original module to this replacement unit. This includes the VIN, key information, and security settings.
- Receive Your Ready-to-Install BCM: We ship the programmed replacement BCM back to you. Installation is plug-and-play, with no additional programming required.
Why Our Programmed 2015-2016 CTS BCM is Your Best Choice
Choosing our service means you are getting more than just a part; you’re getting a comprehensive solution. This service for your 2015-2016 CTS BCM ensures that all vehicle-specific data is perfectly preserved. This method is superior to buying a used module that would require expensive dealer tools for programming, which often costs hundreds of dollars in labor alone. Our service is a one-stop solution that saves you time, money, and hassle.
Important Post-Installation Information
While this module is designed to be plug-and-play, certain vehicle systems may require a recalibration or ‘handshake’ procedure after the new BCM is installed. These are straightforward tasks for any qualified technician with a professional scan tool.
- Airbag System Sync: If the airbag warning light is illuminated after installation, the ‘Setup SDM Primary Key in BCM’ procedure must be performed. This syncs the new BCM with the airbag system’s Sensing and Diagnostic Module (SDM).
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration may be necessary to ensure correct operation of the brake lights and traction control system.
Disclaimer: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Extensive GM Vehicle Compatibility
This BCM, part number 13592137, is compatible with a wide range of General Motors vehicles beyond the Cadillac CTS. It is a direct replacement for part numbers 13506935, 13506936, 13587704, and 13594764. Please verify that your original module carries one of these numbers to ensure compatibility. Models include:
- Cadillac ATS, CTS, Escalade, XTS
- Chevrolet Corvette, Impala, Silverado, Suburban, Tahoe, Sonic
- GMC Sierra, Yukon
Frequently Asked Questions
How does the mail-in cloning service work?
After you place your order, we’ll send you instructions to ship your original BCM to us. We then transfer all the critical data (VIN, key info, security) to the replacement BCM and ship it back to you, ready for plug-and-play installation.
Will I need to take my car to the dealer for programming?
No. The entire purpose of our service is to bypass the need for dealer programming. The BCM you receive from us will be fully programmed with your vehicle’s specific data.
What if my original BCM is water damaged or won’t communicate?
In many cases, even with significant damage, we can still retrieve the necessary data. Please contact us before ordering if your module has severe physical or water damage so we can discuss the likelihood of a successful data transfer.
How long does the entire process take?
Our in-shop turnaround time is typically 1-2 business days after we receive your original module. The total time will depend on shipping times to and from our facility.
What part numbers does this module replace?
This module is a direct replacement for part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. Please check your original module to confirm the part number.
Is it difficult to install the BCM?
The physical installation is generally straightforward, involving disconnecting the battery and swapping the module. However, its location varies by model (e.g., under the dash, on the firewall). We always recommend installation by a qualified technician.