Is Your GM Vehicle Acting Possessed?
Are you dealing with a frustrating storm of electrical problems in your car or truck? Flickering dash lights, power windows and locks with a mind of their own, or a security system that prevents your vehicle from starting can all point to one culprit: a failing Body Control Module (BCM). As the central nervous system for your vehicle’s electronics, a faulty BCM can cause chaos. This isn’t just an annoyance; it’s a reliability issue that can leave you stranded. I’ve spent over two decades diagnosing these exact issues, and I can tell you that swapping the BCM without proper programming is a recipe for more headaches.
The Simple, No-Dealership Solution: A Cloned BCM
Forget about expensive dealership visits, towing fees, and waiting days for programming. Our service provides a fully programmed BCM that is a direct, plug-and-play replacement for your original. We handle all the complex technical work for you. Simply purchase this module, and we’ll contact you with instructions to ship your original BCM to our facility. Our expert technicians will then clone all the essential data—including VIN, mileage, and key information—onto this replacement unit. We ship it back to you, ready for installation. It’s the most straightforward and cost-effective way to restore your vehicle’s electronic functions.
From the Diagnostic Bay: The Case of the Confused Suburban
A customer brought in a 2015 Suburban that was driving them crazy. The interior lights would flicker randomly, the radio would shut off, and sometimes it just wouldn’t start, displaying a ‘Service Theft Deterrent System’ message. They had already replaced the battery and checked the alternator. In my shop, I’ve seen this exact pattern hundreds of times. A quick scan showed multiple communication loss codes (U-codes) pointing to the BCM. Instead of a costly dealer replacement, we performed our cloning service. Once the pre-programmed BCM was installed, all the electrical gremlins vanished instantly. The customer was back on the road the same day, saving hundreds compared to the dealership quote.
Common Symptoms of a Failing GM BCM
If you’re experiencing any of the following issues, a faulty BCM is the likely cause. This Programmed GM BCM 13506936 is the reliable fix you need.
- ✔ Erratic or non-functional power windows, door locks, and mirrors.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Dash lights, headlights, or interior lights flickering or staying on.
- ✔ ‘Service Theft Deterrent System’ or other security warnings on the dash.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Communication error codes, such as U0140, U0155, or other U-codes.
- ✔ Wipers or climate control operating incorrectly.
A Straightforward Guide to Installation
Installing your pre-programmed BCM is designed to be a simple process. While the location varies by model, the general steps are consistent. Always disconnect the battery before starting any electrical work.
- Safety First: Disconnect the negative terminal from your vehicle’s battery and secure it away from the post.
- Locate the BCM: On most of these GM vehicles, the BCM is located under the driver’s side of the dashboard, near the steering column or left-hand kick panel. On some models like the Cadillac ATS or Sierra HD, it may be on the firewall. Refer to your vehicle’s service manual for the exact location.
- Remove the Old Module: Carefully disconnect all electrical connectors from the original BCM. Note their orientation. Then, unbolt or unclip the module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Reconnect all the electrical connectors firmly, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—windows, locks, lights, wipers, and radio—to confirm the repair was successful.
Important Post-Installation Information
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a quick sync-up. This is normal. Your Programmed GM BCM 13506936 is ready, but the vehicle’s other modules may need to recognize it.
- Airbag System Sync: If the airbag (SRS) light is on after installation, a ‘Setup SDM Primary Key in BCM’ procedure is needed. This requires a professional scan tool to sync the airbag module with the new BCM.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure proper brake light and stability control function. This can also be performed with a compatible scan tool.
Disclaimer: Procedures can vary. Always consult a factory service manual or a qualified technician for vehicle-specific guidance.
Verified Vehicle Compatibility
This module is a direct fit for the following vehicles and part numbers. Please match your part number to ensure compatibility. This unit replaces part numbers: 13592137, 13506935, 13506936, 13587704, 13594764.
- Cadillac ATS: 2015-2016
- Cadillac CTS: 2015-2016 (Sedan)
- Cadillac Escalade / ESV: 2015
- Cadillac XTS: 2015
- Chevrolet Corvette: 2015
- Chevrolet Impala: 2015-2016 (New Style, VIN 1)
- Chevrolet Silverado 1500/2500/3500: 2015
- Chevrolet Sonic: 2015-2018
- Chevrolet Suburban 1500: 2015
- Chevrolet Tahoe: 2015
- GMC Sierra 1500/2500/3500 & Denali Models: 2015
- GMC Yukon / Yukon XL 1500: 2015
Frequently Asked Questions
Do I need to get this BCM programmed by a dealer?
Do I need to get this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We clone the data from your original BCM to this replacement unit. When you receive it, it’s fully programmed and ready for installation. No dealership visit is required.
How does the cloning process work?
Do I need to get this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We clone the data from your original BCM to this replacement unit. When you receive it, it’s fully programmed and ready for installation. No dealership visit is required.
What if my original BCM is completely dead or missing?
Do I need to get this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We clone the data from your original BCM to this replacement unit. When you receive it, it’s fully programmed and ready for installation. No dealership visit is required.
Is there a core charge for this part?
Do I need to get this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We clone the data from your original BCM to this replacement unit. When you receive it, it’s fully programmed and ready for installation. No dealership visit is required.
Will this fix my ‘Service Theft Deterrent System’ warning?
Do I need to get this BCM programmed by a dealer?
No. This is the biggest benefit of our service. We clone the data from your original BCM to this replacement unit. When you receive it, it’s fully programmed and ready for installation. No dealership visit is required.