Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
B0081 11
K85 Passenger Presence Module = Passenger Presence System Configuration Error - For greater than 5 s
B0081 4B
K85 Passenger Presence Module = Not Calibrated - For greater than 5 s
B0081 5A
K85 Passenger Presence Module - Lost Communication with Inflatable Restraint Sensing and Diagnostic Module - For greater than 5 s