Regional Haul Model Operator's Manual - Peterbilt Motors Company

INSTRUMENTS AND CONTROLS
before working on or near any part of the exhaust system.
14.Emissions, Malfunction Indicator Lamp
Illuminates when an engine emissions failure
has occurred. The vehicle can be safely
driven but should be serviced to correct the
problem. The situation should not be considered
an emergency. In some cases, the Malfunction
Indicator Lamp will activate in
conjunction with the High Exhaust Temperature,
Diesel Particulate Filter (DPF) and Diesel
Emission Fluid (DEF) Warning Lights.
15.Emission, Diesel Exhaust Fluid Lamp
Illuminates when the Diesel Exhaust Fluid
(DEF) tank level is low. The vehicle can be
safely driven but the DEF tank should be filled
at the next opportunity. The situation should
not be considered an emergency.
CONTROLS AND DISPLAYS
16.Engine, Check Engine
Illuminates when a problem exists, but the
vehicle can still be safely driven. Vehicle
should be serviced to correct the problem
but the situation should not be considered
an emergency.
17.Engine, Ether Start
Illuminates when ether start switch is on.
18. Engine, Heater
Illuminates when Engine Heater switch is on.
19. Engine, Low Coolant Level
Illuminates with an audible alarm indicating
critically low coolant level. The vehicle must
be serviced to correct the problem but the situation
should not be considered an emergency.
– 26 – Y53-6033 Regional Haul (R05/10)