Restore Full Functionality to Your GM Truck or Car
Is your 2015 Sierra Denali 2500, or another compatible GM vehicle, suffering from bizarre electrical issues? The Body Control Module (BCM) is the central nervous system for your vehicle’s body electronics, and when it fails, it can cause a cascade of frustrating and seemingly unrelated problems. From flickering lights and malfunctioning power accessories to security system faults and even no-start conditions, a faulty BCM can bring your daily operations to a halt. This listing is for a replacement BCM, part number 13594764, offered with a straightforward programming service that makes installation a simple, plug-and-play process.
From the Diagnostic Bay
We had a 2015 Silverado 1500 towed in that was a complete electrical nightmare. The owner said it started with the radio acting up, then the power locks became intermittent. By the time it got to us, the turn signals wouldn’t work, and the truck wouldn’t start, displaying a ‘Service Theft Deterrent System’ message. The dealership quoted him over a thousand dollars for a new BCM and the required programming. We diagnosed a failed BCM, and instead of a costly dealer replacement, we performed a cloning service just like this one. The customer sent us his original module, we transferred the data to a replacement unit, and sent it back. He plugged it in, and the truck fired right up with all electronics working perfectly. It’s a powerful solution that saves drivers significant time, money, and hassle.
Symptoms of a Failing Body Control Module
A failing BCM doesn’t always result in a simple check engine light. The symptoms are often more subtle and varied. If you’re experiencing any of the following, your BCM could be the culprit:
- ✔ Intermittent or non-functional power windows, door locks, or mirrors.
- ✔ Erratic behavior from interior or exterior lights (flickering, staying on, or not turning on).
- ✔ Malfunctioning windshield wipers or washers.
- ✔ Horn honking unexpectedly or not working at all.
- ✔ Security system faults, key fob not being recognized, or anti-theft light staying on.
- ✔ A ‘no-start’ or ‘no-crank’ condition, even with a good battery and starter.
- ✔ False warnings on the dashboard or instrument cluster.
- ✔ Climate control system not responding correctly.
The Simple, No-Hassle Programming Solution for Your 2015 Sierra BCM
Replacing a modern BCM isn’t as simple as swapping the part. These modules are programmed with your vehicle’s specific Vehicle Identification Number (VIN) and optional equipment data. A new module from the dealer requires expensive, specialized tools to program it to your truck. Our service eliminates that entire step. By sending us your original BCM, we can extract the critical data and flash it directly onto the replacement module. When you receive it back, it’s a true plug-and-play installation. This process ensures that the replacement module is a perfect digital match for your vehicle, retaining all original keys, security information, and settings. There is no need for a trip to the dealership, saving you hundreds of dollars in labor and programming fees.
How The Process Works:
- ✔ Purchase this service: Complete your order and ensure your contact information is accurate.
- ✔ We Contact You: Our team will reach out with clear instructions and a shipping address for you to send your original BCM.
- ✔ Send Us Your Module: Carefully package and ship your original BCM to our facility.
- ✔ We Program the Replacement: Upon arrival, our technicians will transfer all necessary data from your old module to the replacement unit.
- ✔ Receive Your Plug-and-Play BCM: We ship the programmed replacement BCM back to you. Simply install it, and you’re back on the road!
Post-Installation Checks
While our programming service makes this a direct-fit solution, some vehicle systems may require a simple sync procedure after the new module is connected. Please be aware of the following potential requirements:
- Airbag System Sync: In some cases, the airbag warning light may illuminate after installation. This indicates the new BCM needs to be synced with the SDM (airbag module). A ‘Setup SDM Primary Key in BCM’ procedure can be performed with a professional scan tool to resolve this.
- Brake Pedal Position Relearn: You may need to perform a brake pedal position sensor recalibration to ensure correct brake light operation and stability control function. This is also done with a capable diagnostic tool.
Always consult a factory service manual or a qualified technician if you are unsure about any post-installation procedures.
Frequently Asked Questions
What exactly does the Body Control Module (BCM) do?
The BCM acts as a central computer for your vehicle’s body electronics. It controls non-engine related functions like power windows, locks, lights, wipers, security system, and keyless entry, ensuring all these comfort and convenience features work together seamlessly.
How does this cloning service work?
You purchase this listing and then ship your original, faulty BCM to us. Our technicians use specialized equipment to read the unique programming and security data from your module and write it onto the replacement unit. We then ship the programmed replacement back to you.
Will I need to take my truck to the dealer for programming?
No. The entire point of our service is to avoid dealer programming. The module you receive from us will be pre-programmed with your vehicle’s data, making it a plug-and-play installation.
What are the most common signs my 2015 Sierra BCM is failing?
The most common signs include erratic power windows and locks, flickering dashboard lights, issues with the security system (like a ‘Service Theft Deterrent’ message), and sometimes a complete no-start condition where the engine won’t even crank.
Is this a guaranteed fix for my vehicle’s electrical problems?
This service corrects issues directly caused by a faulty BCM. While the symptoms listed are strong indicators of BCM failure, it’s crucial to have your vehicle properly diagnosed by a professional to rule out other potential causes like wiring issues or faulty sensors.
What if my airbag light comes on after I install the BCM?
If the airbag light is on, it means the BCM and the airbag module (SDM) need to be synchronized. This is a common occurrence and can be fixed by performing the ‘Setup SDM Primary Key in BCM’ procedure with a professional-grade scan tool.