User guide

Low Coolant Level Indicator
This telltale will turn on to indicate the vehicle
coolant level is low.
Cold Ambient Derate Mode Messages
The vehicle will display messages when a derate (engine
power reduction) is activated to protect the turbocharger
during engine start up in cold ambient temperatures.
•
Engine Power Reduced During Warmup - This mes-
sage will display during start up when the ambient
temperature is between 10° F (-12° C) and -10° F (-23° C).
• Engine Power Reduced Up To 30 Sec (Seconds) During
Warmup
- This message will display during start up
when the ambient temperature is between -10° F (-23° C)
and -25 F (-32° C).
• Engine Power Reduced Up To 2 Min (Minutes) During
Warmup
- This message will display during start up
when the ambient temperature is -25° F (-32° C) and
below.
• Coolant Low - This telltale will turn on to indicate the
vehicle coolant level is low. See “Adding Coolant”
under the section “Maintaining Your Vehicle” for more
information.
Diesel Exhaust Fluid (DEF) Warning Messages
Your vehicle will begin displaying warning messages
when the DEF level reaches a driving range of approxi-
mately 350 miles (563 km). If the following warning
message sequence is ignored, your vehicle may be lim-
ited to a maximum speed of 5 MPH (8 km/H) unless DEF
is added.
26 UNDERSTANDING YOUR INSTRUMENT PANEL