factory computer reset

Hi, I'm one of the auto experts on RepairPal's Car Genius team! Great question! On your 2019 Nissan Titan a basic ECM reset can sometimes be performed by disconnecting the negative battery terminal for about 15 to 30 minutes, which allows the vehicle's modules to fully discharge and reset. However it's worth knowing that this type of reset will also clear any stored trouble codes, reset your fuel trims, erase the transmission's learned shift patterns, and may require the throttle body to go through a relearn procedure before the engine idles smoothly again. That said, a full factory reset on a modern vehicle like the Titan really goes beyond a simple battery disconnect and typically requires a professional grade scan tool to properly reset and re-initialize all of the vehicle's modules. If you're trying to reset the computer to address a specific issue I'd actually recommend having a qualified shop diagnose the root cause first, as a reset alone rarely fixes an underlying problem and the issue will often return. If you need any further advice or would like help finding a trusted RepairPal shop in your area or even getting an appointment booked, please feel free to call us at 877-913-1554 or check out https://repairpal.com/certified