One problem related to check engine light on has been reported for the 2002 Toyota Prius. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Prius based on all problems reported for the 2002 Prius.
The check engine light on my car came on and the engine stalled. The car had to be towed to the dealer. The car was repaired at a cost to me of $1100. The throttle body had to be replace, and also the ecm. The car only has 75000 miles.