Embraer EMB145 Operation Manual page 1649

CREW
AIRPLANE
AWARENESS
OPERATIONS
MANUAL
TERRAIN LOOK AHEAD ALERTING
The Terrain Look Ahead Alerting provides a caution/warning level to
alert the flight crew about potential terrain conflicts. The alerts are
based mainly on the airplane's current position and barometric altitude
information. In the event of terrain caution or warning conditions, a
specific audio alert and visual alert are triggered and the terrain
display image is enhanced to highlight each of the types of terrain
threats.
TERRAIN WARNING AND CAUTION AREAS
Page Code
2-04-30
28 01
REVISION 38