Restore Full Functionality to Your GM Truck
Are you chasing down frustrating electrical gremlins in your 2007-2010 GMC Sierra Denali? Intermittent power windows, a dead HVAC system, or a persistent airbag light can make driving your truck a nightmare. These aren’t just annoyances; they’re classic signs of a failing Body Control Module (BCM). The BCM is the electronic brain for your vehicle’s comfort and security features. When it fails, it can cause a cascade of seemingly unrelated problems. This replacement BCM, equivalent to part number 15263497, is the definitive solution, arriving pre-programmed to your truck’s specific VIN for a true plug-and-play repair.
From the Shop Floor: A Classic BCM Failure
A customer brought in his ’08 Sierra Denali with a baffling issue: the truck would randomly stall at low speeds, and the radio and dash lights would flicker. He’d already replaced the battery and alternator. We scanned it and found a dozen communication codes but nothing pointing directly at the engine. From experience, I know that when multiple, unrelated electronic systems act up simultaneously, the BCM’s power or ground circuits are a prime suspect. We located the BCM under the dash and found a weak ground connection nearby. Even after cleaning it, the issues persisted. The original BCM’s internal circuits were already damaged from the poor connection. Installing a new, programmed 2007-2010 Sierra Denali BCM and ensuring all connections were solid fixed every single issue. It’s a textbook example of how this single module can be the root cause of widespread electrical chaos.
Is Your Sierra Denali Showing These Electrical Gremlins?
- ✔ Unresponsive or erratic power windows, door locks, or interior/exterior lights.
- ✔ The HVAC blower motor works intermittently or not at all.
- ✔ Your security system acts up, causing no-start conditions or false alarms.
- ✔ An airbag warning light is illuminated, often with DTC B1001.
- ✔ A host of communication-related Diagnostic Trouble Codes (DTCs) are present.
- ✔ The instrument cluster flickers or displays incorrect information.
Your 5-Minute Path to a Fully Functional Truck
Installation is a straightforward job for any DIYer or professional mechanic. No complex wiring is needed.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on electrical components.
- Locate the Module: The BCM is typically found under the driver’s side dashboard, near the steering column.
- Swap the Connectors: Carefully unplug the electrical connectors from the old BCM and plug them into your new, pre-programmed module. The connectors are keyed to only fit one way.
- Secure and Reconnect: Mount the new BCM securely in the original location and reconnect the negative battery terminal.
- Perform Final Checks: While the module is plug-and-play, some vehicles require a ‘Setup SDM Primary Key in BCM’ procedure with a capable scan tool to clear airbag codes. Additionally, a brake pedal position sensor relearn may be necessary for optimal performance.
Verified Fitment for Your GM Truck or SUV
This Body Control Module is a direct replacement for part number 15263497 and other interchangeable numbers, ensuring compatibility with a wide range of GM vehicles. It is guaranteed to fit the following models:
Frequently Asked Questions
Do I need to program this BCM?
No. This BCM comes fully pre-programmed to your vehicle’s VIN. Simply provide your VIN at checkout, and we handle the programming for you, saving you a trip to the dealership.
Where is the BCM located on my Sierra Denali?
The Body Control Module is located under the driver’s side of the dashboard, usually attached to a bracket near the steering column or main fuse junction block.
Will this fix my airbag light with code B1001?
Yes, a faulty BCM is a very common cause of the B1001 code. After installing the new module, the code may need to be cleared by performing the ‘Setup SDM Primary Key in BCM’ procedure with a bi-directional scan tool.
My original part number is slightly different. Will this still work?
Yes. This module is an interchangeable replacement for many part numbers, including 25835966, 15263363, 15878753, and your specific part 15263497. It is designed to be a consolidated, reliable replacement.
What tools are required for installation?
Basic hand tools, typically a small socket set or nut driver, are all that’s needed for the physical replacement. A capable scan tool is recommended for the post-installation procedures if an airbag light is present.
Is there a core charge for my old part?
No, there is no core charge. You can keep or dispose of your old module without the hassle of returning it.