Is Your Tahoe Experiencing Strange Electrical Problems?
If your 2007-2011 Chevrolet Tahoe is suffering from a frustrating mix of electrical issues—like flickering lights, non-responsive power windows, a malfunctioning security system, or erratic HVAC controls—a failing Body Control Module (BCM) is the most likely culprit. The BCM is the central command center for your vehicle’s body electronics, and when it starts to fail, it can cause a cascade of seemingly unrelated problems. This genuine GM BCM, part number 15943678, is the definitive solution, arriving pre-programmed to your vehicle’s VIN for a simple, plug-and-play installation.
Common Symptoms of a Failing BCM
- ✔ Power windows, door locks, or mirrors stop working or operate erratically.
- ✔ Interior or exterior lights fail to turn on, off, or flicker unexpectedly.
- ✔ The HVAC system blower motor is intermittent or completely unresponsive.
- ✔ Your vehicle’s security system malfunctions, preventing the engine from starting.
- ✔ An airbag warning light appears on the dash, often with a DTC like B1001.
- ✔ The windshield wipers behave unpredictably or won’t turn off.
- ✔ You experience stalling, misfires, or other grounding-related symptoms.
The Perfect Solution for your 2007-2011 Tahoe BCM
Don’t let a faulty module keep your truck or SUV sidelined. This BCM is programmed with the latest GM software updates specific to your vehicle’s VIN. This critical step ensures that all systems communicate correctly right out of the box, eliminating the need for an expensive trip to the dealership for programming. Built to strict OEM standards, it restores the precise electronic control your vehicle had when it left the factory. Installation is straightforward, typically located under the driver’s side dash, and can be completed in minutes.
This module is a direct replacement and also interchanges with a wide range of part numbers, including: 25844480, 25835966, 15263363, 15263497, 15878753, 15284816, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, and 22860591.
Post-Installation Procedures
While the installation is plug-and-play, some vehicles may require additional steps. If the airbag warning light remains on after installation, a technician will need to perform the ‘Setup SDM Primary Key in BCM’ procedure using a professional scan tool. In some cases, a ‘Brake Pedal Position Relearn’ may also be necessary to ensure proper brake light and traction control operation. Always consult your vehicle’s service manual for specific instructions.
Frequently Asked Questions
Does this BCM require programming at the dealership?
No. We pre-program this module to your vehicle’s specific VIN before shipping. It arrives ready for a plug-and-play installation, saving you time and money.
Where is the BCM located on my 2008 Tahoe?
The Body Control Module on most 2007-2013 GM trucks and SUVs, including the Tahoe, is located under the driver’s side of the dashboard, near the steering column.
What happens if I don’t provide my VIN?
Providing your VIN is essential for the programming process. Without it, the module will not be properly configured for your vehicle’s specific options and security systems, and it will not function correctly.
Will this fix my airbag light with code B1001?
A faulty BCM is a common cause of the B1001 code. Replacing it often resolves the issue, but you may need to perform the ‘Setup SDM Primary Key’ procedure with a scan tool after installation to clear the light.
Is there a core charge for my old part?
No, there is no core charge. You can keep your original module without any need to send it back to us.