1. Press and hold the trip button until the end of step 5.
2. Turn the ignition key to the "on" position.
3. Wait for the "maintenance required" light to turn off (about 10 seconds).
4. Turn the ignition key to the "lock" position.
5. Turn the ignition key back to the "on" position.
Taking 10 seconds to use the search function found the information.
I managed by hitting the button about 1000 times. No exaggeration. It made the contacts cleaner I guess and I was able to reset the light. The trick is to press the button over and over until your setting changes. At that point, you have some electrical connection and you may be able to reset the light. Your finger will be tired.