for what it's worth, on our previa there's a button on the display you push.
you remove a little plug from the plexiglass over the speedo and push the
button with a pda stylus (or paperclip, or whatever). light goes off.
what I'd like to know is why it goes on to begin with. it isn't mileage, I've
checked. the oil is changed at 3000 miles, and so as far as I can tell it
isn't a sensor in the oil. it seems to go off about every 12-15k miles, though
sometimes it seems sooner.
>
> my son's 2005 Tacoma has the maintenance needed light on. the book says this
> means an oil change which he had done (not at the dealer). however the light
> is still on.
> How does he turn the light off???????
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