Getting "Maintenance Required" on Display ... How to Read the Code?

How many miles since the last service? My Gen II reminds me when the next oil change is due (simple to reset, see p.365 Destruction Manual) - hope this helps - Wil

 

It's a standard reminder every 5000 miles. The dealer resets it when you bring it in for service. The Prius only requires an oil and filter change every other service visit. The other, in between visit, is for tire rotation, brake lining, and fluid checks.

 

As was pointed out, this reminder comes on every 5,000 miles since it was last reset. It does not throw any codes. It is simply a reminder to have your car serviced. If you cannot determine the previous service history, then best thing is to do a full oil and filter service now, which will be good for 10,000 miles assuming you use synthetic 0W-20 oil. Then it will be up to you to remember the next time the 5,000 mile reminder comes up it will only be the minor service, and alternate thereafter with the full oil service.