One problem related to wiper has been reported for the 2018 Toyota Yaris. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Toyota Yaris based on all problems reported for the 2018 Yaris.
The headlights do not shine far enough to the left or right when approaching a 90 degree left or right turn at night. I noticed this right after I bought the car. I have been driving for over 40 years and owned many vehicles and have never had any difficulty seeing when I was making a turn. I'm sure it is not the lights needing adjustment. It is a very bad design on the headlights and also very dangerous. There is no doubt in my mind that there will be many accidents because of the headlight design. I believe this flaw should be re-called and repaired.