One problem related to ignition switch has been reported for the 2017 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Toyota Highlander based on all problems reported for the 2017 Highlander.
My Toyota Highlander would not go into park. The SUV lunged forward over curbing and into building. Then went violently into reverse and into a uncontrollable spin. Then the SUV went violently into drive and jumping over a curbing and into a ditch and was sitting on top of a natural gas line. During this whole time I was pressing the brake and pushing the ignition switch trying to turn off the engine. This was done in a parking lot as I was trying to park.