Peterbilt 579 - Automatic and Automated Transmissions

OPERATING THE TRANSMISSION
4
Automatic and Automated
Transmissions
An automatic or automated
transmission makes shifting much
easier. It remains important to
completely understand how to operate
the transmission to optimize its
efciency. Please read the manual
for your automatic or automated
transmission included with your
vehicle.
For automated
transmissions, there is
no “park” position. So you will need to
apply the parking brake before leaving
the cab.
Hill Hold
The hill hold feature is available as
an option with certain automated
transmissions. This feature holds the
vehicle while on a hill to allow the
operator to release the service brakes
and press the accelerator. This feature
will hold the vehicle if the vehicle is
attempting to go up a hill from a stop in
either drive or reverse.
WARNING!
Do not leave the cab of your vehi-
cle without applying the parking brake.
The truck could roll and cause an acci
-
dent resulting in death or personal in-
jury. Always apply the parking brake
before you leave the cab.
WARNING!
If your vehicle has an automated trans-
mission, be aware that it can roll back-
wards when stopped on a hill or grade,
or when starting from a stop on a hill
or grade. Failure to comply may result
in death, personal injury, equipment or
property damage. Observe the follow
-
ing guidelines:
• When stopped on a hill or grade,
press the brake pedal.
• When starting
from a stop on a
hill or grade, quickly remove your
foot from the brake pedal and
rmly press on the accelerator
pedal.
4-18 Y53-6047–2C (04/13)