Restore Control Over Your Tahoe’s Electronics
If you’re dealing with the maddening and unpredictable electrical problems common in 2007-2011 Chevrolet Tahoes—like wipers that won’t turn off, a dead A/C blower, or power locks with a mind of their own—you’ve likely met the culprit: a failing Body Control Module (BCM). As the central computer for your truck’s comfort and convenience features, its failure can make daily driving a nightmare. This replacement BCM, equivalent to part number 25823559, is the definitive, hassle-free solution. It arrives pre-programmed to your Tahoe’s specific VIN, eliminating the need for a costly trip to the dealership for programming. Get your vehicle’s essential systems back online with a part designed for reliability and simple installation.
A Technician’s Notebook
I recently had a 2009 Tahoe in the bay that was a perfect example of BCM failure. The customer complained of an airbag light that wouldn’t go off (DTC B1001), the radio cutting out, and the driver’s side window only working intermittently. These seemingly unrelated issues pointed directly to the BCM. After confirming the grounds were solid, we swapped in a VIN-programmed module. In less than 10 minutes, every single issue was resolved. The key was the pre-programming; it allowed the new BCM to correctly communicate with the airbag’s SDM and other modules on the network right away. It’s a repair that saves hours of diagnostic headaches.
Is Your Tahoe Showing These Telltale Signs?
A faulty BCM can manifest in numerous ways. If you’re experiencing any of the following, this module is the likely solution for your 2007-2011 Tahoe BCM issues:
- ✔ Intermittent or non-functional HVAC controls, including the fan blower motor.
- ✔ The security light is flashing, and the vehicle may not start or stalls unexpectedly.
- ✔ Power windows, door locks, or interior/exterior lights are behaving erratically or not at all.
- ✔ An active airbag warning light, often accompanied by Diagnostic Trouble Code (DTC) B1001.
- ✔ Strange electrical behavior, like the radio turning off or gauges acting up.
- ✔ Communication errors with other modules on the vehicle’s data network.
A Straightforward Guide to Installation
Replacing the BCM is a job most DIYers can handle with basic tools. Follow these steps to get your Tahoe back in order quickly.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electrical components.
- Locate the Module: The BCM is typically found under the driver’s side of the dashboard, near the steering column. You may need to remove a lower dash panel for access.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old BCM. They have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the old module from its mounting bracket.
- Install the New BCM: Mount the new module in place and securely plug in all the electrical connectors. You’ll hear a click as they lock into place.
- Reconnect and Test: Reconnect the negative battery terminal. Start the vehicle and test all functions: lights, wipers, windows, locks, and HVAC system.
- Post-Install Checks: If your airbag light remains on, a professional scan tool is needed to perform the “Setup SDM Primary Key in BCM” procedure. Some models may also require a Brake Pedal Position relearn.
Verified Vehicle Compatibility
This module is a direct replacement for part number 25823559 and other interchangeable numbers. It is guaranteed to fit the following vehicles:
ESCALADE 07-11
ESCALADE ESV 07-11
ESCALADE EXT 07-11
SIERRA 1500 PICKUP 07-11 (07 new style, smooth door skin)
SIERRA 2500 PICKUP 07-13 (07 new style, smooth door skin)
SIERRA 3500 PICKUP 07-13 (07 new style, smooth door skin)
SIERRA DENALI 07-10
SIERRA DENALI 1500 11
SIERRA DENALI 2500 11-13
SIERRA DENALI 3500 11-13
SILVERADO 1500 PICKUP 07-11 (07 new style, smooth door skin)
SILVERADO 2500 PICKUP 07-13 (07 new style, smooth door skin)
SILVERADO 3500 PICKUP 07-13 (07 new style, smooth door skin)
SUBURBAN 1500 07-11
SUBURBAN 2500 07-11
TAHOE 07-11
YUKON 07-11
YUKON XL 1500 07-11
YUKON XL 2500 07-11