I've owned my 2019 Prius Limited now for about 2 weeks. Hadn't an issue until after I went through a car wash today. Dashboard lit up, check engine light, yellow triangle, multiple system warnings to contact the dealership, all while I'm going 70 down the highway. When I stopped at auto parts store for a code reader, it only came back with one trouble code, for a left wheel sensor. I guess all the other things that popped up were downstream from this error. Does this mean I can no longer do drive-thru car washes, or could it just be a coincidence? By the way, the place I bought the car from is going to replace the sensor. They gave me a 30-day warranty on the whole car. Thanks everyone.
Look for rodent chew marks on the wiring harness. The car driving through puddles, in the rain is equivalent to a car wash. If it happens again; I would follow the sensor wire up into the main harness. The bare wires probably shorted to ground and/or signal was intermittent.
You might want to check the health of your 12V battery, as mentioned in your other thread. Car washes are notorious for putting strain on the 12V system as your car is dragged through in neutral (no 12V charging). The result is usually a plethora of odd trouble codes.
