2020 Legacy rain and carwash sets off warning indicators

[Malman]

I purchased this car a year ago with no issues until recently. Every time it rains or I go through the carwash the warning lights come up on the dash, i.e. eye sight off, tpms, traction control, check engine, like literally everything. Sometimes it won't let me put in to gear. Wondering if others have/have had this problem and what can be done to fix it? One thing I have done is disconnect the battery cables for 30 minutes to reset the electrical system. This works but it is a band-aid. Please help.

 

[Ecmbuster]

Have the vehicle scanned at the dealer, there are likely faults recorded for possible water intrusion or possible rodent damage at the wiring harness.