The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.
Problems for specific Toyota Camry years:
Car problem reports
Problem with your car? See what our experts say or submit your own.
Most reported 2004 Toyota Camry problems
The valve cover gaskets have a tendency to leak oil, especially the one near the firewall.
Toyota also issued a recall on the seat belts because of a faulty buckle status switch. The seat belt status switch can be replaced under the recall.