Speedometer: The speedometer can only display 3 digits but it records every tenths of a mile.
Assume your total miles are: 5,432.1
With the engine key turned on, press and hold the function switch under your cup holders. 
Your display will first show "ODO"
Next the display will show your "thousands" number (5),
then your "hundreds" number (432)
then "tenths" (.1)
If you want to look at your miles since the last time your odometer was reset (your trip miles) then, with the engine key turned on, just press and release the function switch.  You will see "TRP" then your miles up to 999 then your tenths of a mile. 
The trip mileage can be reset if you press and hold the function switch while your trip mileage is being displayed.