How to Diagnose and Fix P0871 Engine Code - OBD II Trouble Code Explain

OBD-II Code P0871 means that the Transmission Fluid Pressure Sensor/Switch 'C' Circuit is sending an incorrect signal to the Transmission Control Module (TCM). This can cause the transmission to not shift properly.
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[@CarlosGarcia-iw2ep]

Hello we have a 2019 cummins and it is throwing us this code, it just popped out of nowhere, do you suggest hauling a trailer or even driving it?

[@Car-A-Z]

Is there any unusual noises when start?