If you’re dealing with the maddening electrical gremlins that plague so many 2007-2013 GM trucks and SUVs, you know the frustration. One day the A/C works, the next it doesn’t. Your power windows have a mind of their own, and a persistent airbag light is staring you down. As a technician with over two decades of experience, I’ve seen these exact issues hundreds of times, and they almost always trace back to a failing Body Control Module (BCM). This isn’t just an annoyance; it’s a breakdown in your vehicle’s central nervous system. This is the definitive, reliable fix you’ve been looking for.
This OEM-quality Body Control Module, equivalent to part number GM 15263363, arrives at your door fully programmed to your vehicle’s specific VIN. That means no expensive trips to the dealership for programming, no special software required. It’s designed to be a direct-fit, plug-and-play solution that restores full functionality to your vehicle’s essential systems, from interior lighting and power locks to the critical security and HVAC controls. Stop chasing intermittent electrical faults and get your truck or SUV back to operating the way it should.
A Technician’s Notebook
I remember a 2009 Sierra 2500 that came into the shop with a classic case of BCM failure. The customer was frustrated by an intermittent no-start condition and an airbag light that wouldn’t go off (DTC B1001). He had already replaced the battery and checked fuses. After confirming the BCM was the culprit, we installed one of our pre-programmed modules. The truck started right up, but the airbag light remained. This is a key diagnostic point: a new BCM needs to handshake with the SDM (Sensing and Diagnostic Module). We found a slightly corroded ground wire near the BCM mounting point—a common issue on these work trucks. After cleaning the ground and performing the ‘Setup SDM Primary Key’ procedure with our scanner, the light went out for good. The pre-programmed module saved him a trip to the dealer, and a quick check of the grounds ensured the fix would last.
Is Your GM Truck Exhibiting These Symptoms?
A failing BCM can cause a wide range of confusing electrical problems. If you’re experiencing any of the following, this module is the likely solution:
- ✔️ Intermittent or non-functional HVAC controls, including the blower motor or A/C.
- ✔️ An active airbag warning light, often with a DTC B1001 stored in the system.
- ✔️ Erratic power windows, door locks, or interior/exterior lights that work one minute and not the next.
- ✔️ Security system malfunctions, leading to no-start or stalling conditions.
- ✔️ Poor ground symptoms or a cluster of seemingly unrelated diagnostic trouble codes (DTCs).
Your Straightforward 5-Minute Installation Guide
Physically swapping the BCM is a simple process that most DIYers can complete with basic hand tools. It is typically located under the driver’s side dashboard, near the steering column.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before working on any electrical components.
- Locate the BCM: On most compatible models, you’ll find it under the dash to the left of 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 module. They have locking tabs that need to be depressed. Once disconnected, unclip or unbolt the old BCM from its mounting bracket.
- Install the New Module: Seat your new, VIN-programmed BCM into the mounting bracket 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. Turn the key to the ‘On’ position and test all body functions—lights, locks, windows, wipers, and HVAC—to confirm proper operation.
Post-Installation Note: In some cases, particularly if you had an airbag light, you may need to perform a ‘Setup SDM Primary Key in BCM’ procedure using a compatible bi-directional scan tool. A ‘Brake Pedal Position Relearn’ may also be required on certain models.
Verified Fitment for Your General Motors Vehicle
This module is a direct replacement for part number 15263363 and other interchangeable numbers on a wide range of GM trucks and SUVs. Please verify your vehicle’s year and model against the list below. This part is also an interchange for: 25835966, 15263497, 15878753, 15284816, 15943678, 15926094, 15940214, 25790508, 25790509, 25823558, 25823559, 25835965, 25844479, 25971916, 25971917, 15901388, 20939137, 20939138, 22860591.
CADILLAC ESCALADE 07-11
CADILLAC ESCALADE ESV 07-11
CADILLAC ESCALADE EXT 07-11
CHEVROLET SILVERADO 1500 PICKUP 07-11 (New Body Style)
CHEVROLET SILVERADO 2500 PICKUP 07-11 (New Body Style)
CHEVROLET SILVERADO 3500 PICKUP 07-11 (New Body Style)
CHEVROLET SUBURBAN 1500 07-11
CHEVROLET SUBURBAN 2500 07-11
CHEVROLET TAHOE 07-11
GMC SIERRA 1500 PICKUP 07-11 (New Body Style)
GMC SIERRA 2500 PICKUP 07-11 (New Body Style)
GMC SIERRA 3500 PICKUP 07-11 (New Body Style)
GMC SIERRA DENALI 07-10
GMC SIERRA DENALI 1500 11
GMC SIERRA DENALI 2500 11
GMC SIERRA DENALI 3500 11
GMC YUKON 07-11
GMC YUKON XL 1500 07-11
GMC YUKON XL 2500 07-11
Frequently Asked Questions
Frequently Asked Questions
Do I need to have this BCM programmed by the dealer?
No. We pre-program the module to your vehicle’s VIN before shipping. It arrives ready for plug-and-play installation, saving you hundreds in dealership fees.
Is there a core charge for my old part?
There is absolutely no core charge. You can keep your old module without any hassle or need to return it.
Why is my airbag light still on after installation?
This is a common security measure. The new BCM needs to be synchronized with the airbag’s computer (SDM). This requires a ‘Setup SDM Primary Key in BCM’ procedure, which can be done with a bi-directional scan tool.
What tools do I need to install this GM BCM 15263363?
Basic hand tools like a socket set or screwdriver are usually all that’s needed to remove the lower dash panel and the module itself. No special tools are required for the physical installation.
Will this fix my check engine light?
While a failing BCM can sometimes cause stalling or misfires that trigger a check engine light, it primarily controls body functions. If your main issue is a check engine light, you should first diagnose the stored powertrain codes (P-codes) to pinpoint the cause.