Ford 2013 Flex Owner's Manual page 112

Heads up display (if equipped)
A red beam of lights will illuminate on the windshield in certain
instances when using adaptive cruise control and/or the
collision warning system. It will also illuminate momentarily
when you start your vehicle to make sure the display works.
High beams
Illuminates when the high-beam headlamps are on.
Low fuel (RTT)
Illuminates when the fuel level in the fuel tank is at or near
empty.
Liftgate ajar (RTT)
Illuminates when the ignition is on and liftgate is not
completely closed.
Low tire pressure warning
Illuminates when your tire pressure is low. If the light remains
on at start up or while driving, the tire pressure should be
checked. When the ignition is first turned to on, the light will
illuminate for 3 seconds to ensure the bulb is working. If the light does
not turn on or begins to flash, contact your authorized dealer as soon as
possible.
Low washer fluid (RTT)
Illuminates when the windshield washer fluid is low.
Park lamps
Illuminates when the park lamps are on.
2013 Flex (471)
Owners Guide gf, 4th Printing, December 2012
USA (fus)
Instrument Cluster 111