One problem related to engine shut off without warning has been reported for the 2003 Toyota Sequoia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Sequoia based on all problems reported for the 2003 Sequoia.
While driving on the street at speed limit the car shuts off without any warning. You have no way to break but to place your car in park. I have had this happen twice not sure why it keeps happening. This is very very dangerous.