Catalytic Convertor Problems of Lexus ES300

Engine and trac light has come on intermittently since around 40,ooo mi. Has been in dealership for repair on at least 6 occassions. Both lights will go off, but come back on and not go off until the shop resets the light. Now they tell me that the O2 sensors need replacing since the car is no longer under warranty. I want to know why they could not diagnose that the car needed expensive repairs before? it has taken two days of diagnostic work to come up with the oxygen sensor diagnosis. How can I be sure this is the real problem? I have been told so many different things that I question the diagnosis and do not feel I should have to pay for the total cost of repair since this automobile has been in so many times for the same problem.

See all problems of the 2000 Lexus ES300 🔎.

Strong sulfur smell inside car when stopping after brisk acceleration. A/c in normal setting. Lexus aware of this problem and there is even a service bulletin on sulfur complain smell. Odor is so strong that sometimes people get nauseated. I would have never bought this car have the dealer make me aware of this problem and they knew about this defect before I took delivery of car. Need NHTSA help since there are many Lexus owners complaining about sulfur smell and Lexus is ignoring us - I guess they have a major problem and do not know how to fix or correct problem. They even told me to use only amoco premium since they claim it has the lowest sulfur content. Also, if the sulfur smell is getting inside the car how about the carbon monoxide which is also getting out of the exhaust. All these fumes are being sucked in by the a/c system and I'm sure that in the long run somebody will get sick. - we, Lexus owners need our government to investigate this issue since Lexus is trying to ignore these problem for obvious reasons. Thank you.

See all problems of the 2003 Lexus ES300 🔎.