Chevrolet 2005 T-Series, Owner'S Manual

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Air Pressure Gage
If your vehicle has air
brakes, this gage shows
the air pressure for
both your front and rear
brake systems.
If the needle on the gage indicates that the air pressure
is below 60 psi (415 kPa), the primary brake 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.
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.
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