Undo your battery for a couple of minutes worked on the older models. I believe this is the procedure for yours.
Turn ignition key to 'ON' and press the odometer button until the display reads ODO... not Trip A or B.
Turn ignition key to OFF.
Hold in the same button you used in step 1.
While holding the button in, turn ignition key to 'ON'.
ODOMETER will change to
5 dashes - - - - -
Then 4 dashes - - - -
Then 3 dashes - - -
Then 2 dashes - -
Then 1 dash -
THEN all zeros 0 0 0 0 0
Then back to the correct mileage
The Maintenance Required light should blink and go out.