operators_manual

Transmission. The Automated or PACCAR
Transmission controls are located on the
right hand side of the steering column.
Using the Manual - Automatic
Button
This button will put the transmission into
manual mode. Manual mode will allow the
operator to select the gear. See Up or
Down Shifting on page 157.
To activate, put the gear selector in the D
(drive) mode and then depress the M/A
button. The instrument cluster will display
the corresponding selection in the
transmission mode area of the display. See
Drive, Neutral, and Reverse Indicator on
page 65 and
Peterbilt Digital Display on
page 63.
Gear Display Icon (Gear shift assist)
Up or Down Shifting
When in the Manual mode, the
transmission gears can be manually
selected by pushing or pulling on the lever.
Pushing the lever forward will down shift.
Pushing and holding the lever forward will
engage the LOW gear range. Pulling the
lever towards the driver will upshift the
transmission.
Some vehicles may have a feature that
prompts the operator to shift for optimal
fuel economy.
If the prompt appears in the instrument
cluster, use the manual gear selector lever
to change gears.
Gear Display Icon (Gear shift assist)
The instrument cluster will illuminate with
the corresponding gear.
Gear Display Icon (gear number)
DRIVING - Transmission
Y53-6126-1A1 (01/21) 157
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