Restore Your Truck’s Electrical System with a Plug-and-Play BCM
Are you battling bizarre electrical issues in your 2011 GMC Sierra, Chevrolet Silverado, or other GM truck? If your power windows, door locks, or HVAC controls are acting erratically, or if you’re facing a persistent airbag light, the root cause is often a failing Body Control Module (BCM). As the central command for your vehicle’s body electronics, a faulty BCM can create a host of frustrating and difficult-to-diagnose problems. This OEM-quality replacement module, part number 15940214, is the definitive solution, and our expert cloning service makes it a simple, plug-and-play fix.
A Technician’s Notebook
I’ve seen hundreds of these GM trucks in my shop over the years, and a common complaint is a cluster of seemingly unrelated electrical failures. A customer recently brought in a 2011 Sierra Denali 2500 where the radio would cut out, the driver’s side window wouldn’t work, and the security light would flash, preventing it from starting. After confirming power and grounds were solid, all diagnostic paths led to an internal BCM failure. By providing a replacement 2011 Sierra 2500 BCM with the original data cloned over, we had all systems restored in under 30 minutes. This service saves customers hundreds compared to a dealership visit.
Is Your Truck Showing These Telltale Signs?
- ✔ Unresponsive or erratic HVAC controls, including a blower that won’t turn on or off.
- ✔ Persistent airbag warning light, often with a DTC B1001 stored in the system.
- ✔ Widespread electrical failures: power locks, windows, or exterior lights working intermittently or not at all.
- ✔ Security system faults leading to no-start conditions, stalling, or misfires.
- ✔ A dashboard lit up with various body-related Diagnostic Trouble Codes (DTCs).
The Power of Our Cloning Service
Typically, replacing a BCM means a trip to the dealership for expensive, vehicle-specific programming. We eliminate that hassle. When you order from us, you’ll send in your original module. Our technicians will perform a full data transfer, copying your vehicle’s VIN, security information, and other critical settings to this replacement unit. The result? You receive a module that is 100% ready for installation with no additional programming required. Your original module is always returned to you, and there is no core charge.
A Straightforward Guide to Installation
- ✔ Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- ✔ Locate the BCM: On most compatible GM trucks and SUVs, the BCM is found under the driver’s side dashboard, near the steering column or parking brake pedal. It’s usually held in by simple clips or a few small bolts.
- ✔ Swap the Modules: Carefully press the release tabs and disconnect the electrical harnesses from your old BCM. Remove it from its bracket, install the new module, and securely reconnect all harnesses.
- ✔ Reconnect and Test: Reconnect the negative battery terminal. Start your truck and perform a full function check: test the windows, locks, lights, wipers, and HVAC system to confirm everything is working correctly.
- ✔ Post-Install Sync: If the airbag light is on after installing the new 2011 Sierra 2500 BCM, a simple ‘Setup SDM Primary Key’ procedure may be needed using a professional-grade scan tool. This syncs the new BCM with the airbag system.
Guaranteed Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for part number 15940214 and is interchangeable with many other GM part numbers, including 25844480, 25835966, 15926094, 20939137, and 22860591. It is designed for the following vehicles:
CADILLAC ESCALADE, ESV, EXT 07-11
CHEVROLET SILVERADO 1500/2500/3500 PICKUP 07-13
CHEVROLET SUBURBAN 1500/2500 07-11
CHEVROLET TAHOE 07-11
GMC SIERRA 1500/2500/3500 PICKUP 07-13
GMC SIERRA DENALI 1500/2500/3500 07-13
GMC YUKON & YUKON XL 1500/2500 07-11
Note: For 2007 models, this fits the ‘New Style’ with a smooth door skin. Please confirm your part number or contact our experts for verification.
Frequently Asked Questions About Your BCM
Frequently Asked Questions
What exactly is a “Cloning Service”?
It is a bench-programming process where we transfer the unique software and vehicle-specific data (like VIN and key info) from your original BCM to the replacement unit. This makes the new part plug-and-play, avoiding costly dealership programming.
Do I need to send you my old BCM?
Yes, for the cloning service to be successful, we require your original module to extract its data. We return your original module along with the newly programmed replacement unit.
Will this fix my airbag light with code B1001?
A faulty BCM is a very common cause of this code. Replacing it often resolves the issue. If the light remains on after installation, a simple “Setup SDM Primary Key in BCM” procedure with a professional scan tool will be required to sync the systems.
How do I know if my BCM is the problem?
Common indicators include multiple, unrelated electrical failures (lights, locks, windows), intermittent no-start conditions, and specific diagnostic trouble codes. If you’re unsure, a professional diagnosis is recommended.
Is this a difficult part to replace myself?
The physical replacement is straightforward for most DIYers with basic tools, as the BCM is usually accessible under the dashboard. Our cloning service eliminates the most difficult part—the programming—making this a very manageable repair.