One problem related to blind spot detection has been reported for the 2018 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Toyota Prius based on all problems reported for the 2018 Prius.
Was driving around 35 mph and my right side mirror blew up. The back blew off and the mirror was shattered and hanging. Nothing hit it. Contacted Toyota and the parts have been on a stop, but there is no recall. It has been 4 months.