Is Your GM Vehicle Experiencing Strange Electrical Problems?
The Body Control Module (BCM) is the central command center for your vehicle’s body electronics. It manages everything from your power windows and locks to the interior lights, security system, and instrument cluster. When your BCM begins to fail, it can create a cascade of confusing and frustrating issues that can be difficult to diagnose. If your Chevrolet, GMC, Cadillac, or Buick is acting possessed, a faulty BCM is a likely culprit.
From the Diagnostic Bay
We recently had a 2015 GMC Sierra 1500 in the shop with a classic case of BCM failure. The customer reported that the radio would randomly turn off, the driver’s side power window worked intermittently, and the anti-theft light would flash, sometimes preventing the truck from starting. They had already spent money on a new battery and checked all the fuses with no luck. A quick scan revealed multiple communication loss codes with the BCM. Instead of sending them to the dealership for a new module and expensive programming, we performed our cloning service. By transferring the data from his old, failing unit to our replacement, we had him back on the road the same day with a fully functional truck and no need for a dealer visit. This is the exact, hassle-free solution we offer to you.
Common Symptoms of a Failing GM Body Control Module
- ✔ Power windows, door locks, or mirrors operating erratically or not at all.
- ✔ Interior or exterior lights flickering, staying on, or not turning on.
- ✔ The vehicle’s security system engaging randomly, causing a no-start condition.
- ✔ Horn honking unexpectedly or not working when pressed.
- ✔ False warning lights appearing on the instrument cluster (e.g., “Service StabiliTrak”).
- ✔ Wipers activating on their own or not responding to the switch.
- ✔ Rapid battery drain while the vehicle is parked.
The Simple, Plug-and-Play Solution
Don’t get stuck with a massive bill from the dealership for a new module and the hours of programming required. Our professional programming service is the most efficient and cost-effective way to solve your BCM problems. Here’s how it works:
- Place Your Order: Purchase this service and we will contact you with shipping instructions.
- Ship Us Your Module: Carefully package and send your original BCM to our facility.
- We Clone The Data: Our technicians will professionally transfer all the vital information—including VIN, mileage, key data, and vehicle options—from your original module to a replacement unit.
- Receive Your Ready-to-Install BCM: We ship the programmed replacement module back to you. Installation is as simple as plugging it in. No further programming or dealer intervention is required.
Post-Installation Procedures
While our goal is a 100% plug-and-play experience, some GM systems may require a simple sync procedure after the new module is installed. Please be aware of the following possibilities:
- 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 is a security measure to ensure the airbag and body control systems are correctly paired.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor recalibration might be necessary to ensure correct operation of the brake lights and traction control system.
Note: Specific procedures can vary by vehicle. Always consult a factory service manual or a qualified technician for guidance.
Frequently Asked Questions
How does this programming service work?
You purchase this service and ship your original BCM to us. We then extract the unique data from your module and transfer it to a fully functional replacement unit. We ship the replacement back to you, ready for installation.
Is this BCM truly plug-and-play?
Yes, in over 95% of cases. Because we clone your original data, the replacement module is a direct match for your vehicle’s configuration, eliminating the need for dealership programming. In rare cases, a simple relearn procedure like for the airbag system may be needed.
Why is this better than buying a new BCM from a dealer?
Our service saves you significant time and money. A new BCM from the dealer is not only expensive but also requires your vehicle to be towed to them for costly programming. Our solution allows you to perform the repair yourself without any special tools or software.
What if my original BCM is completely dead or not communicating?
In most cases, even if the BCM is not functioning in the vehicle, we can still recover the necessary data. Please contact us with the specifics of your situation if you believe your module is completely unresponsive.
Which part numbers does this service cover?
This service is for BCMs with part numbers 13592137, 13506935, 13506936, 13587704, and 13594764. Please ensure your module has one of these numbers before ordering.
Do I need to return my old part?
No, there is no core charge for this service. You only need to send us your original module for the data transfer. We do not require it back after the service is complete.