Restore Control and Eliminate Electrical Gremlins
Are you battling bizarre electrical issues in your GM vehicle? Flickering interior lights, power windows with a mind of their own, or a security system that randomly acts up are classic signs of a failing Body Control Module (BCM). As the central hub for your vehicle’s comfort and convenience features, a faulty BCM can make driving a frustrating experience. This isn’t just an annoyance; it can lead to dead batteries from parasitic drains or even prevent your vehicle from starting. Stop chasing symptoms and replace the core component with our reliable, VIN-programmed GM Body Control Module 15276271.
We take the guesswork and high costs out of the repair. Forget about towing your vehicle to a dealership for expensive programming. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM software specific to your car or truck. It arrives at your door ready for a straightforward installation, restoring your vehicle’s electronics to perfect working order.
A Technician’s Notebook: The Tahoe with the Phantom Drain
I remember a 2010 Chevy Tahoe that rolled into my bay with a classic complaint: a dead battery every two or three days. The owner had already replaced the battery and alternator, but the problem persisted. A parasitic draw test showed something was staying awake long after the key was off. After isolating circuits, all signs pointed to the BCM. It wasn’t fully entering its ‘sleep mode,’ causing a slow but steady drain. We swapped in a pre-programmed BCM, and the draw vanished. It’s a common failure I’ve seen hundreds of times on these platforms, and a new GM Body Control Module 15276271 is the definitive fix.
Is Your GM Vehicle Showing These Symptoms?
A failing BCM can manifest in numerous ways. If you’re experiencing any of the following, it’s a strong indicator that your BCM needs replacement:
- ✔ Unpredictable or non-working power windows, door locks, and mirrors.
- ✔ Interior dome lights or dashboard lights staying on or flickering.
- ✔ The security system or horn activating without reason.
- ✔ Intermittent no-start conditions where the engine cranks but won’t fire.
- ✔ Warning lights on the dash, such as for the airbag or ABS system.
- ✔ Communication error codes, particularly U0140 (Lost Communication With Body Control Module).
- ✔ A persistent parasitic battery drain that kills your battery overnight.
Your Straightforward BCM Installation Guide
This repair is well within the reach of a DIY enthusiast. While the BCM’s location varies slightly by model, the process is generally the same.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to power down.
- Locate the BCM: On most of these vehicles, the BCM is located under the driver’s side of the dashboard, often to the left of the steering column or integrated into the fuse panel. On vans, it’s typically behind the center dash.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be depressed. Once disconnected, unbolt or unclip the old module and remove it.
- Install the New Module: Mount your new, pre-programmed BCM in the same location. Securely plug in all the electrical connectors, ensuring they click into place.
- Reconnect and Test: Reconnect the negative battery terminal. Turn the key to the ‘On’ position and test all body functions—windows, locks, lights, and wipers—to confirm proper operation.
- Perform Relearns (If Necessary): As noted below, some vehicles may require a Brake Pedal Position or Airbag System sync procedure if related warning lights appear.
Important Post-Installation Procedures
Because this GM Body Control Module 15276271 is pre-programmed, most functions will work immediately. However, depending on your specific model and options, you may need a capable scan tool to perform one of the following simple procedures:
- Airbag System Sync: If your airbag light is on after installation, a scan tool is needed to perform the “Setup SDM Primary Key in BCM” function. This syncs the new BCM with the airbag system.
- Brake Pedal Position Relearn: On some models, this relearn is required to ensure brake lights and traction control function correctly.
We offer a no-hassle repair with no core charge. You can keep your old module.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles and interchanges with numerous part numbers. Please match your original part number to the list below or confirm fitment with your vehicle’s year, make, and model. This part replaces: 10382479, 15093910, 15276271, 15299986, 15819552, 15828601, 15837419, 15872388, 15872421, 15880684, 15921352, 15921353, 15948438, 15948439, 20815898, 20839063, 20864767, 20864768, 20921435, 20921436, 20935349, 22860591, 25826124, 25826125, 25847588, 25847589, 25892622, 25910474, 25934762, 25934763, and 95151084.
Note: Specific options may apply. Please verify your part number.
Frequently Asked Questions
Do I need to program this BCM?
Do I need to program this BCM?
No. We handle all the programming for you before shipment. Just provide your vehicle’s VIN at checkout, and the module will arrive ready to install with the latest GM software.
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact software and calibrations your vehicle had when it left the factory. This ensures all your specific options (like remote start, power liftgate, etc.) work correctly.
Is there a core charge for my old part?
No, there is absolutely no core charge. You are not required to send your old BCM back to us.
Where is the BCM located on my vehicle?
The location varies. On most GM trucks, SUVs, and sedans, it’s under the driver-side dash. On Express and Savana vans, it’s typically found behind the center dash/radio area. A quick search for your specific model will provide diagrams or videos.
What if the airbag light comes on after I install it?
This is a normal possibility. It means the new BCM needs to be electronically ‘introduced’ to the airbag system’s computer (SDM). A repair shop with a professional scan tool can perform the ‘Setup SDM Primary Key in BCM’ procedure in a few minutes to turn off the light.