How do I reset the check engine light on a 2008 4runner SR5?
you have two options, get a OBDII code reader and it has a erase or reset button to reset the check engine light .... or you can simply disconnect the negative battery post for about a minute and that should reset it also.
What if it's stay off for few days and comes back on. Codes said it need O2 sensor , is there away to reset light
I replaced sensor O2, light go out for few days comes back on
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