One problem related to engine shut off without warning has been reported for the 2019 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Toyota Highlander based on all problems reported for the 2019 Highlander.
While driving, the vehicle had a slight lag when I applied gas then started beeping and provided the warnings: check engine, hybrid system malfunction, pre-collision system malfunction, check awd system. I turned the car off multiple times, the errors were still on the car the next morning when I started the car to take it to the service appt. When I got to the dealership I turned the car off to check it in, when I came back the error was gone. They checked out the car they said there was nothing wrong with it and thought it was just �ambient conditions�. Two weeks later, I was driving and I had the same lag in power then the same alarms and started driving toward the dealership (about 3 miles away) and the hybrid system and power steering shut down in the middle of the road leaving me with no power. I turned the vehicle off and back on and the errors were still there and it shut down again another half mile down the road. It is at the dealership again. The vehicle has 10,800 miles and should not be having these significant issues. I was driving in the city during all these events.