Daimler Freightliner Cascadia 2021, Driver Manual

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Hill Start Aid Override Switch
Some vehicles are equipped with a Hill Start Aid
(HSA) feature to prevent the vehicle from rolling
while on steep grades and to allow for a controlled
launch. HSA delays the release of the service brakes
until enough torque is available to begin moving the
vehicle forward, for a maximum of 3 seconds. HSA is
"on" by default. It can be turned off by pressing and
releasing the HSA override switch on the dash (see
Fig. 4.16 ).
Power Take-Off (PTO) Switch
To activate the PTO function, press the upper half of
the switch. Press the lower half of the switch to de-
activate the PTO function. See
Fig. 4.17 .
Power Take-Off may also be activated using the digi-
tal switch in the ICU.
WARNING
To avoid injury, do not install a PTO that is not
Detroit Diesel approved onto a Detroit
™ Trans-
mission. Use of a non-Detroit Diesel approved
PTO with a Detroit Transmission could result in
unintended operation which could lead to severe
personal injury.
Transmission Controls
Detroit ™ Automated Transmissions
NOTE: See Chapter 17 Automated and Auto-
matic Transmissions for automated transmission
operating instructions.
Vehicles with automated and automatic transmissions
use the multifunction control shown in
Fig. 4.18 . This
control moves in two directions and has two
switches. It is used to request manual shifts, change
shift mode, set engine brake levels, and control spe-
cialty engine brake functions.
Manual Transmissions
NOTE: See Chapter 18 Manual Transmissions
and Clutch for manual transmission operating
instructions.
If so equipped, the transmission range control and
splitter valves are attached to the gear shift knob.
The range-preselection lever allows the selection of
the low or high range for each transmission ratio. It is
used once during an upshift sequence and once dur-
ing a downshift sequence.
Dependent on the transmission model, some ratios
can be split using the splitter-control button.
Dash-Mounted Brake Controls
NOTE: See Chapter 15 Brake Systems for de-
tailed information about brake systems.
Parking Brake Control Valve
The yellow diamond-shaped knob operates the park-
ing brake valve. See
Fig. 4.19 . Pull the knob out to
apply both the tractor and the trailer spring parking
brakes. Push both the parking brake and the trailer
air supply knobs in to release the tractor and trailer
spring parking brakes. Before the spring parking
brakes can be released, the air pressure in either air
brake system must be at least 65 psi (447 kPa).
If the trailer is not equipped with spring parking
brakes, pull the parking brake valve out to apply the
tractor parking brakes and the trailer service brakes.
f611406 04/18/2016
HSA
OFF
Fig. 4.16, Hill Start Aid Override Switch
f611407 04/18/2016
PTO
Fig. 4.17, PTO Switch
Driver Controls
4.9