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I stumbled on this question doing a search. I have the same problem with my 2003 Corolla. It seems to happen only during very cold weather (below zero).

The quick solution which has worked for me is to always turn the brights on (push the lever forward) when I park the car. The problem does not happen if the switch is in the brights position. Strange but true.

A dealership told me that there is a "service bulletin" on this issue which details a fix involving a relay, as I recall. The shop said that the fix could run $1,000 or more, so I declined.

Chris.

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Q: 2003 Toyota corolla headlights come on when car is turned off how to keep the headlights off so it will not kill the battery?
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