FORD 2013 Explorer v.1 - Manual (Page 118)

Engine coolant temperature (RTT)
Illuminates when the engine coolant temperature is high. Stop
the vehicle as soon as possible, switch off the engine and let
cool.
Fog lamps
Illuminates when the fog lamps are turned on.
Grade assist (if equipped) (RTT)
Illuminates when grade assist is turned on.
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.
Hill descent (if equipped) (RTT)
Illuminates when hill descent is turned on.
High beams
Illuminates when the high-beam headlamps are on.
Lane keeping system (if equipped) (RTT)
Illuminates when the lane keeping system is activated.
Low fuel (RTT)
Illuminates when the fuel level in the fuel tank is at or near
empty.
118 Instrument Cluster
2013 Explorer (exp)
Owners Guide gf, 1st Printing
USA (fus)