Telltales, Indicator Icons, and Messages
Air Gauge Indicators
Telltale Color Description Related Messages
Amber Primary Air Caution
Table 3.17, Air Gauge Indicators
Engine Protection System
WARNING
When the red STOP engine lamp illuminates,
most engines are programmed to shut down
automatically within 30 seconds. The driver must
immediately move the vehicle to a safe location
at the side of the road to prevent causing a
hazardous situation that could cause bodily
injury, property damage, or severe damage to the
engine.
See
Chapter 13 Emissions for an explanation of the
aftertreatment system (ATS) warning indicators, and
actions required to avoid further engine protection
steps.
The STOP engine lamp illuminates when the engine
protection system is activated in one of two ways. On
some engines, the engine protection system will
derate the engine, allowing it to run at lower rpm and
slower vehicle speed. Drive the vehicle to a safe
location or to a service facility.
IMPORTANT: Safely bring the vehicle to a stop
on the side of the road and shut down the
engine as soon as the red light is seen. If the
engine shuts down while the vehicle is in a
hazardous location, turn the key to the OFF
position for a few seconds, then restart the
engine and move the vehicle to a safer location.
On other engines, the engine protection system will
shut down the engine. It will first derate the engine,
then shut it down completely 30 to 60 seconds after
the indicator illuminates (depending on the critical
fault type) if the condition does not improve. Bring
the vehicle to a stop on the side of the road before
the engine shuts down.
Some vehicles may have a shutdown-override
switch, which may be used to momentarily override
the shutdown sequence. See
Chapter 9 Engine
Starting, Operation, and Shutdown for detailed
information regarding the shutdown process.
IMPORTANT: Do not attempt to restart the
engine while the vehicle is moving. Bring the
vehicle to a safe stop, then restart the engine.
To restart the engine, turn the ignition to OFF, leave
it there a few seconds, then turn the ignition to
START. The engine will run for a short period and
shut down again if the condition does not improve.
Instruments
3.38
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