Air Pressure Gage; Hourmeter Gage - Chevrolet T-Series Owner's Manual

Air Pressure Gage

If the needle on the gage indicates that the air
pressure is below 60 psi (415 kPa), the low
air warning light will come on. An alarm will also
sound if this happens.
The top pointer shows the pressure available
for the front system, while the bottom pointer
shows pressure for the rear. There should be no
more than 4 psi (28 kPa) difference showing
between the systems.
Don't drive until both pointers are showing at least
120 psi (830 kPa), so you'll have enough air if
you need to apply your brakes.
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If your vehicle has air
brakes, this gage shows
the air pressure for
both your front and rear
brake systems.

Hourmeter Gage

To access the engine hourmeter gage press the
trip odometer button three times.
The instrument panel cluster displays the
accumulated engine run time hours using the
reconfigurable odometer display. The engine run
time hours displays only when the ignition is in the
LOCK or ACC (Accessory) position and the trip
reset switch is pressed for about four seconds.
When the ignition is in the LOCK or ACC
(Accessory) position, the instrument panel cluster
displays the engine accumulated hours for up
to 30 seconds. The value of the accumulated
hours does not change when the battery is
disconnected.
The hourmeter resets to 0.0 when 10,000 hours
are accumulated. The instrument panel cluster
begins to reaccumulate the engine run time hours
from 0.0 hours.