Restore Your Vehicle’s Electronic Stability and Functionality
Are you dealing with a cascade of bizarre electrical problems in your GM vehicle? One minute the radio works, the next it doesn’t. The power windows have a mind of their own, the security light is flashing, or worse, your truck won’t start at all. These aren’t random glitches; they’re classic symptoms of a failing Body Control Module (BCM). The BCM is the central command center for your vehicle’s body electronics, and when it fails, it can feel like the entire truck is haunted. In my 20+ years as a technician, I’ve seen faulty BCMs cause more confusing diagnostic chases than almost any other component. This is the definitive fix.
We offer a straightforward and reliable solution: a replacement BCM programmed with your vehicle’s exact data. By cloning the information from your original module, we eliminate the need for expensive and time-consuming dealership programming. This service ensures that your vehicle’s specific VIN, options (RPO codes), and security information are perfectly transferred to the replacement unit. The result is a true plug-and-play repair that gets you back on the road with confidence. This service is the most effective way to solve issues related to your 2015 Sierra 3500 BCM and restore all body functions to factory-correct operation.
A Technician’s Notebook: The Tahoe That Wouldn’t Behave
A customer brought in a 2015 Tahoe with a laundry list of complaints: intermittent no-start, wipers activating on their own, and the dreaded “Service StabiliTrak” message. They had already replaced the battery and checked all the grounds. Scans showed a flurry of communication codes (U-codes), pointing towards a network issue. After isolating other modules, all signs pointed to the BCM. Instead of a costly new module and hours of programming at the dealer, we used a cloning service just like this one. We shipped the original BCM, received the programmed replacement two days later, and installed it in under 30 minutes. All the ghost-in-the-machine problems vanished instantly. It’s a testament to how effective this solution is.
Common Signs of a Failing BCM
- ✔ Intermittent or non-functional power windows, door locks, and interior lights.
- ✔ Instrument cluster gauges behaving erratically or going dark.
- ✔ Vehicle’s security system engaging randomly or preventing the engine from starting.
- ✔ Diagnostic Trouble Codes (DTCs) such as U0140, U0155, or B1001 indicating loss of communication or internal failure.
- ✔ Unresponsive key fobs or push-to-start system failures.
- ✔ Horn, wipers, or headlights activating without user input.
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate and Remove: Find your original BCM. On most GM trucks and SUVs like the Sierra, it’s located under the steering column or on the driver’s side firewall. Carefully disconnect the wiring harnesses and remove the module.
- ✔ Ship Us Your Module: After purchase, we will provide you with shipping instructions. Securely package your original BCM and send it to us.
- ✔ We Handle the Programming: Once we receive your module, our experts will clone all essential data to the replacement unit within one business day.
- ✔ Install the Replacement: We’ll ship your newly programmed BCM back to you. Simply install it in the reverse order of removal, reconnect the harnesses, and then reconnect the battery.
- ✔ Perform Final Checks: Start the vehicle and test all body functions. If any warning lights appear (like the airbag light), a post-install procedure may be required.
Important Post-Installation Notes
While our cloning service makes this a near plug-and-play process, some modern GM vehicles may require a simple relearn procedure to fully sync all systems. These do not require a trip to the dealer but may need a capable bi-directional scan tool.
- Airbag System Sync: If the airbag warning light is on after installation, a technician will need to perform the “Setup SDM Primary Key in BCM” procedure to sync the modules.
- Brake Pedal Position Relearn: To ensure correct brake light and traction control operation, a brake pedal position sensor recalibration may be necessary on some models.
Disclaimer: Vehicle systems vary. Always refer to a factory service manual or consult with a qualified automotive technician if you are unsure about any step.
Will This Fit My Vehicle?
This BCM cloning service is compatible with a wide range of General Motors vehicles. Please verify that your vehicle and original BCM part number are on this list. This module is a direct replacement for part numbers 13594692, 13594768, 13593214, 13580690, 13591519, and 13594769.
Fits: Cadillac ATS (2014), CTS (2014), Escalade/ESV (2015), XTS (2014) | Chevrolet Caprice (2014-17), Corvette (2014), Impala (2015-19), Silverado 1500 (2014), Silverado 2500/3500 (2015), Suburban 1500 (2015), Tahoe (2015) | GMC Sierra 1500 (2014), Sierra 2500/3500 (2015), Yukon/Yukon XL 1500 (2015). Please check the original part ID on certain models for an exact match.
Frequently Asked Questions
How does the cloning process work?
After you place your order, you’ll ship your original BCM to us. We use specialized equipment to extract the unique vehicle data (VIN, key codes, options) and flash it onto the replacement module. We then ship the programmed module back to you, ready for installation.
Do I need to get this programmed by a dealer?
No. Our cloning service completely eliminates the need for any additional programming by a dealer or locksmith. This saves you hundreds of dollars and significant hassle.
Is this a difficult part to replace for a DIYer?
For most of the listed trucks and SUVs, the BCM is accessible under the driver’s side dash. With basic hand tools and some patience, it’s a very manageable job for a DIY enthusiast. The key is our programming service, which handles the most complex part of the repair for you.
What happens if I install it and the airbag light comes on?
This can happen occasionally as the BCM and the airbag module (SDM) need to re-establish their secure connection. A simple “Setup SDM Primary Key in BCM” procedure with a professional scan tool will resolve this and turn off the light.
Is there a core charge for my old BCM?
No, there is no core charge. We need your original module to perform the cloning service, but you are not required to leave it with us. However, most customers find it convenient not to have the old, faulty part returned.
How long does the service take?
Once we receive your original BCM, our programming service is typically completed within one business day. We then ship the replacement module back to you, and you will receive a tracking number at that time.