toyota sienna 2014 why does check engine and trac off lights stay on
the check engine and trac off lights are lit and won't turn off. This is a 2014 Toyota Sienna 8 passenger van
I have the same van and the exact same problem!!
I purchased my 2014 sienna 3 months ago and recently received the check engine and track off light issue. I took van to dealer and was diagnosed as a bad oxygen sensor. This also caused the economy feature to stop functioning. The sensor has just been replaced and the 2 lights and eco feature is now functioning properly. So far I have driven 40 miles from dealer and no problems. Hopefully my next trip to dealer will be just for my first oil change and check up. Hope this is the permanent fix for this issue.
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