How do you reset the maintenance required light on a Toyota Highlander?
Turn ignition to 'ACC' and press the odometer button until the
display reads actual mileage... not Trip A or B.
Turn ignition off.
Hold in the same button you used in step 1.
While holding the button in, turn ignition to 'ON'.
The 'Maint Reqd' light should blink and go out.
If you wish to confirm, this info should be in your owner's
-- for the 2004 Highlander
Same as above except turning to ON did not work for me but
turning to ACC did.
For me..... and I have a 2005 Highlander, I had to hold the
odometer button down for several seconds, In my case I had to hold
it down for 6 seconds.
For my 2007 Highlander you turn the ignition to ACC press the
odometer button, turn it to off, then turn it back to ACC (not
"ON") while still keeping the button depressed. The dealership had
it wrong, as well.