One problem related to engine stall has been reported for the 2015 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Toyota Highlander based on all problems reported for the 2015 Highlander.
For two years now, my vehicle will randomly have an engine stall while operating the vehicle. It happens at different speeds and while going straight ahead or turning. The entire instrument panel and navigation screens shuts off and turns back on. I have taken the car in to Toyota twice and was told they couldn't find anything wrong or get the the vehicle to malfunction again. Today, the engine didn't immediately come back on after stalling, and I had to pull over and turn the car off and back on again. My car has less than 33000 miles on it and has had regular maintenance. This is truly a safety concern at this point and it seems I'm not the only one with this issue according to those reported to the NHTSA.