One problem related to check engine light on has been reported for the 2004 Toyota Sequoia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sequoia based on all problems reported for the 2004 Sequoia.
Check engine light come on. Along with 2 other lights. This has occurred over 10 to 12 times since owning this SUV. Each time it is noted on my paper work no leaks found and gas cap replaced. I have spent each time on a average $578 at least for a gas cap after they have checked out the car. I even had this problem when the car was under warranty but of course no charge then. I notice other Toyota vehicles have recall on this check engine lights. I think the Sequoia should get included in this it is the same thing. I can only imagine how much money owners of these suvs have paid out because of this. I notice this check engine light came on after I put gas in. The light will not go off until you take in it in to the dealership who then charges you the $578 or more it simply ripping the consumer off.