Ford 2009 Flex Owner's Manual page 18

Instrument Cluster
Trip odometer: Registers the miles
(kilometers) of individual journeys.
Press and release the message
center INFO button until "TRIP A"
appears in the display (this
represents the trip mode). Press the
control again to select Trip B. Press and hold the RESET button for two
seconds to reset.
18
2009 Flex (471)
Owners Guide, 2nd Printing
USA (fus)