•
One bar illuminated green—Between approxi-
mately 10% and 25% full
•
One bar illuminated amber—DEF very low, re-
fill DEF
•
One bar flashing red—DEF empty, refill DEF
DEF Warnings and Engine Limits
IMPORTANT: Ignoring the DEF warning lights
results in limited engine power, with the applica-
tion of a 5 mph (8 km/h) speed limit after the
engine is shut down and started again.
f080147
EXHAUST AFTERTREATMENT SYSTEM INFORMATION
Switch.
Level 1
Level 3
Level 2
Level 4
Filter Regeneration
Recommended
Filter is reaching
Bring vehicle to
highway speeds to
Filter Regeneration
Necessary
Filter is now
reaching maximum
capacity.
To avoid engine
derate bring vehicle
Parked Regeneration
Required − Engine
Derate
Filter has reached
maximum capacity.
Vehicle must be
parked and a Parked
Parked Regeneration Required −
Engine Shut Down
Filter has exceeded
maximum capacity
Vehicle must be parked and a
Parked Regeneration or Service
(Solid)
(Flashing)
(Flashing)
CHECK
CHECK
(Flashing)
INDICATOR
LAMP(S)
Indicator Lamp
Message(s)
Diesel Particulate
Filter Condition
Required Action
capacity.
.
STOP
See Engine Operator’s Manual for complete Regeneration Instructions.
allow for an Automatic
Regeneration or
perform a Parked
Regeneration.
to highway speeds
to allow for an
Automatic
Regeneration or
perform a Parked
Regeneration as
soon as possible.
Regeneration must
be performed −
engine will begin
derate.
Regeneration must be performed.
Check engine operator’s manual
for details −engine will shut down.
For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.
06/29/2009
24−01583−000B
WARNING
HEST (High Exhaust
System Temperature)
Exhaust Components
and exhaust gas are
at high temperature.
When stationary, keep
away from people and
flammable materials
or vapors.
A regeneration is in
progress.
Flashing
Solid
Fig. 7.4, ATS Warning Lamps
09/25/2006
f610814a
Fig. 7.5, Malfunction Indicator Lamp (MIL)
09/25/2006
f610815a
Fig. 7.6, DPF Status Lamp
09/25/2006
f610816a
Fig. 7.7, HEST Lamp
Engines
7.5
