Fix Your Truck’s Electrical Headaches for Good
If you’re dealing with flickering lights, a dead HVAC system, or power windows with a mind of their own, your Body Control Module (BCM) is the likely culprit. This isn’t just an inconvenience; it’s a frustrating problem that can make your dependable truck feel unreliable. This direct-fit BCM, equivalent to part number 15940214, is the definitive solution for your 2007-2011 GMC Sierra 3500 Pickup and a wide range of other GM trucks and SUVs. We take the guesswork and high dealership costs out of the equation by pre-programming it to your vehicle’s VIN, ensuring it’s ready for installation right out of the box.
A Technician’s Notebook: The Grounding Gremlin
I once had a 2008 Silverado 2500 in the bay that was a real head-scratcher. The owner had already replaced the battery and alternator, but the truck would randomly fail to start, and the radio would cut out. He was convinced the BCM was bad, and he was right, but not for the reason he thought. After installing a new BCM, I always check the main grounding points. Sure enough, the primary BCM ground located on the A-pillar behind the driver’s side kick panel was corroded. This poor connection had been sending voltage spikes that eventually fried the original module. We cleaned the contact point to bare metal, sealed it, and the new BCM worked flawlessly. It’s a five-minute check that can save you from a repeat failure.
Is Your Truck Showing These Telltale Signs?
- ✔ The security light is flashing, and the engine won’t start or stalls intermittently.
- ✔ Power windows, door locks, or interior lights work sporadically or not at all.
- ✔ Your HVAC controls are unresponsive, or the blower motor is stuck on or off.
- ✔ An airbag warning light is on, often with a DTC like B1001 (Setup SDM Primary Key Mismatch).
- ✔ You’re experiencing phantom battery drain that leaves you with a dead battery overnight.
- ✔ The dashboard is lit up with various unrelated warning lights.
A Straightforward Guide to Your BCM Installation
Getting your truck back in order is easier than you think. Most DIYers with basic tools can complete this job in under 15 minutes.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: The BCM is typically found under the driver’s side dashboard, to the left of the steering column. You may need to remove a lower dash panel for access.
- Swap the Connectors: Carefully unplug the wiring harness connectors from the old BCM. They have release tabs that need to be pressed. Plug them securely into your new, pre-programmed module.
- Secure the New BCM: Mount the new module in the same position as the old one. Reinstall any panels you removed.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm the repair.
- Post-Install Checks: In some cases, an airbag light may persist. This requires a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ function. A ‘Brake Pedal Position Relearn’ may also be needed.
Why Choose Our Pre-Programmed BCM?
This isn’t just a replacement part; it’s a complete, hassle-free solution. When you order a 2007-2011 Sierra 3500 Body Control Module from us, you get a component that’s built to last and designed to work seamlessly with your truck’s existing systems.
- ✔ VIN-Programmed for You: We load the latest GM software and your vehicle’s specific VIN before shipping. This eliminates the need for a costly trip to the dealership for programming.
- ✔ No Core Charge: Don’t worry about the hassle and expense of sending your old part back. You can keep it or dispose of it at your convenience.
- ✔ Restored Functionality: Get your power accessories, security system, and other essential body functions working like new again.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications for a reliable, long-term repair, and backed by a solid one-year warranty.
Verified Fitment for Your GM Truck or SUV
AVALANCHE 1500 08-09 Body Control (BCM); (under steering column)
AVALANCHE 1500 10 Body Control (BCM); (under steering column), ID 25835966
AVALANCHE 1500 11 Body Control (BCM)
ESCALADE 07-09 Body Control (BCM); (under steering column)
ESCALADE 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE 11 Body Control (BCM); (under steering column)
ESCALADE ESV 07-09 Body Control (BCM); (under steering column)
ESCALADE ESV 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE ESV 11 Body Control (BCM); (under steering column)
ESCALADE EXT 07-09 Body Control (BCM); (under steering column)
ESCALADE EXT 10 Body Control (BCM); (under steering column), ID 25835966
ESCALADE EXT 11 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 1500 PICKUP 08 Body Control (BCM); (under steering column)
SIERRA 1500 PICKUP 09 Body Control (BCM), (under steering column)
SIERRA 1500 PICKUP 10-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 2500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA 3500 PICKUP 08-11 Body Control (BCM); (under steering column)
SIERRA 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SIERRA DENALI 08-10 Body Control (BCM); (under steering column)
SIERRA DENALI 1500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 2500 13 Body Control (BCM); (under steering column), ID 25835966
SIERRA DENALI 3500 11 Body Control (BCM); (under steering column)
SIERRA DENALI 3500 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 1500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 1500 PICKUP 08-11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 07 Body Control (BCM); new style (smooth door skin), under steering column)
SILVERADO 2500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 2500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 2500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SILVERADO 3500 PICKUP 07 Body Control (BCM); new style (smooth door skin), (under steering column)
SILVERADO 3500 PICKUP 08 Body Control (BCM), (under steering column)
SILVERADO 3500 PICKUP 09-11 Body Control (BCM); (under steering column)
SILVERADO 3500 PICKUP 13 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 07-09 Body Control (BCM); (under steering column)
SUBURBAN 1500 10 Body Control (BCM); (under steering column), ID 25835966
SUBURBAN 1500 11 Body Control (BCM); (under steering column)
SUBURBAN 2500 07-09 Body Control (BCM); (under steering column)
SUBURBAN 2500 10 Body Control (BCM), (under steering column)
SUBURBAN 2500 11 Body Control (BCM); (under steering column)
TAHOE 07 Body Control (BCM); (under steering column)
TAHOE 08 Body Control (BCM)
TAHOE 09 Body Control (BCM); (under steering column)
TAHOE 10 Body Control (BCM); (under steering column), ID 25835966
TAHOE 11 Body Control (BCM); (under steering column)
YUKON 07 Body Control (BCM); (under steering column)
YUKON 08 Body Control (BCM), (under steering column)
YUKON 09 Body Control (BCM); (under steering column)
YUKON 10 Body Control (BCM); (under steering column), ID 25835966
YUKON 11 Body Control (BCM), (under steering column)
YUKON XL 1500 07-09 Body Control (BCM), (under steering column)
YUKON XL 1500 10 Body Control (BCM); (under steering column), ID 25835966
YUKON XL 1500 11 Body Control (BCM); (under steering column)
YUKON XL 2500 07-08 Body Control (BCM), (under steering column)
YUKON XL 2500 09-11 Body Control (BCM); (under steering column)
Frequently Asked Questions
Frequently Asked Questions
What exactly does this Body Control Module do?
The BCM acts as the central hub for your truck’s body electronics. It controls non-engine related functions like your lights, power windows, door locks, wipers, climate control, and anti-theft system.
Is this part truly plug-and-play?
Yes. Because we program the module to your truck’s specific VIN before shipping, it communicates correctly with your other onboard computers right after installation. This saves you a trip to the dealer for expensive programming.
Why is my airbag light on after installing the new BCM?
This can happen if the new BCM and the airbag system’s Sensing and Diagnostic Module (SDM) are out of sync. A technician will need to use a professional scan tool to perform the ‘Setup SDM Primary Key in BCM’ procedure to resolve it.
Do I have to send my old part back?
No. We do not require the old part to be returned. There is no core charge, which simplifies the process for you.
Can a bad BCM cause my truck to not start?
Absolutely. The BCM is a critical part of the vehicle’s anti-theft and security system. If it fails, it can prevent the engine from starting or cause it to stall, often accompanied by a flashing security light on the dash.