STANDARD GAUGES CONTROLS AND DISPLAY
– 38 – Y53-6033
Regional Haul (R05/10)
Engine Hours / Outside Air Temperature
The LCD display in the lower part of the tachometer con-
tains the engine hour meter and the outside air tempera-
ture display.
The engine hour meter will display the total number of
hours the engine has been running. The maximum hours
that can be shown are “99999.9” before the meter rolls
over to zero.
The outside air temperature (OAT) will display the temper-
ature outside the vehicle. The temperature can be dis-
played from -40° to 158° in Fahrenheit or -40° to 70°
Celsius.The display will also alert the driver when the out-
side temperate approaches freezing (32°F or 0°C) by dis-
playing a snowflake symbol. The symbol will turn on when
the temperature drops below 34°F or 11°C and flash for
the first 3 seconds, then stay on until the temperature
goes above 37°F or 28°C.
The temperature can display using Standard or Metric
units. Press the trip reset button on the Speedometer 4
times within 4 seconds. This will also change the units
shown by the Driver Information Display.
Refer to “Units of measure” on page 34 for another
method to change units.
NOTE: The OAT will come on when the door is
open and the key switch is in the accessory or
ignition position. The OAT display will turn off
when the ignition switch is turned off.
NOTE: The OAT uses a sensor (located at the
bottom of the driver’s side mirror assembly) to
measure outside air temperature only. It is not
capable of displaying the temperature of the road
surface on either the temperature display or the
snowflake icon.
NOTE: The effects of direct sunlight, or the use of
mirror heat, will increase the outside air tempera-
ture displayed while the vehicle is stationary.
Hour Meter
Outside
Air
Temperature
Snowflake
Symbol
