One problem related to computer failure has been reported for the 2002 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Toyota Sienna based on all problems reported for the 2002 Sienna.
2002 Toyota Sienna van. The vehicle computer will sporadically trigger the check engine light to come on based on no actual cause. This occurs around every 5,000 miles. It is typical for this computer failure to begin after 75,000 miles on this year of Sienna and Toyota's recall only covers vehicles up to 75,000 miles. The computer costs $1,000 to replace. This recall should be expanded to vehicles 10yrs old or less. There is probably an internal memo floating around Toyota with a dollar figure attached branzely boasting how much they saved by "smoking" a shorter recall period past the us government. Toyota customer services has been hostile toward resolving this complaint.