When I got my HiHy's first 5000 mile service, it was early. The dealership didn't reset the alert message so I had to return when it came on and stayed on at 5000.
The way to reset the message is:
1.Push and hold in the odometer button on the left with the reading of the total mileage displayed.
2. Turn the key to off.
3. While holding in the botton, turn the key on.
4. A message should appear indicating the Scheduled Maintenance alert is being reset.

The alert comes on every 5,000 miles and can be scary the first time.