Telltales, Indicator Icons, and Messages
Diesel Exhaust Fluid (DEF) and Diesel Particulate Filter (DPF)
Telltale Color Description Related Messages
Amber
High Exhaust
System
Temperature
(HEST)
*
Slow (10-second) flashing indicates a
regeneration (regen) is in progress.
IMPORTANT: When the HEST lamp is
illuminated, do not park the vehicle near
objects that can be harmed by high
temperatures or flammable materials.
Solid illumination indicates high exhaust
temperatures at the outlet of the tail pipe
when speed is below 5 mph (8 km/h).
Amber
Low Diesel Exhaust
Fluid
Indicates low diesel exhaust fluid.
Fill the DEF tank.
See
Chapter 14 for an
explanation of the after
treatment system (ATS)
warnings, and actions
required to avoid further
engine protection steps.
Amber
Low Diesel Exhaust
Fluid
Alternative icon to indicate Low Diesel
Exhaust Fluid.
Fill the DEF tank.
See
Chapter 14 for an
explanation of the after
treatment system (ATS)
warnings, and actions
required to avoid further
engine protection steps.
Table 3.15, Diesel Exhaust Fluid (DEF) and Diesel Particulate Filter (DPF) Related Icons
Telltales, Indicator Icons, and Messages
Lamps
Telltale Color Description Related Information
Green
Right-Turn
Indicator On
Flashing indicates the outside right-turn signal
lamps are activated.
Green
Left-Turn Indicator
On
Flashing indicates the outside left-turn signal
lamps are activated.
Blue High-Beams On Indicates the high-beam headlights are on.
Green Low-Beams On Indicates the low-beam headlights are on.
Blue
Automatic High-
Beams On
Indicates the high-beam headlights have been
set to automatic and are on.
Instruments
3.62
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