One problem related to ignition has been reported for the 2003 Mazda MPV. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mazda MPV based on all problems reported for the 2003 MPV.
2003 Mazda Mpv stalling in traffic. Driving down the road the vehicle will just stall, taking power steering, etc. With it. Restarts from neutral just fine. Very dangerous situation with vehicles behind you.