Honda Odyssey 2009 Owner's Manual page 425

If you still do not get the indicated
maintenance done, you will see a
negative mileage, for example '' 15''
blinking. This negative mileage
display means you should have done
the indicated maintenance 15 miles
ago. Immediately have the indicated
maintenance done by your dealer.
Maintenance Main Items and Sub
Items
Except Touring models
MAINTENANCE MAIN ITEM
MAINTENANCE SUB ITEM
All the maintenance items displayed
on the information display or the
multi-information display are in code.
For an explanation of the
maintenance codes, see page
Maintenance Minder
On Touring models
MAINTENANCE
MAIN ITEM
MAINTENANCE
MAIN ITEM
424 .
MAINTENANCE
SUB ITEMS
MAINTENANCE
SUB ITEMS
419