User Manual - Page 440

For 2019 VOLVO XC90.

Loading ...
Loading ...
Loading ...
||
STARTING AND DRIVING
* Option/accessory.
438
Related information
•
Shiftlock (p. 437)
•
Gear selector positions for automatic trans-
missions (p. 434)
The kickdown function
Kickdown is used when maximum acceleration is
needed, e.g. when passing.
When the accelerator pedal is depressed all the
way to the floor (past the normal full accelerator
position), the transmission will automatically
engage kickdown, i.e. immediately shift down to a
lower gear.
If the accelerator pedal is released from the kick-
down position, the transmission will automatically
shift up again.
Safety function
The transmission control module is equipped with
a downshift protection feature to help prevent the
engine from overheating.
In some conditions, the transmission will prevent
downshifting/kickdown if this would lead to such
high engine speed (rpm) that the engine could
be damaged. If the driver still attempts downshift-
ing or kickdown at a high rpm, nothing will hap-
pen and the original gear will remain selected.
With kickdown, the vehicle can downshift one or
more steps at a time depending on the engine
speed. The vehicle upshifts when the engine rea-
ches its maximum rpm to prevent engine dam-
age.
Related information
•
Gear selector positions for automatic trans-
missions (p. 434)
All Wheel Drive (AWD)*
All-wheel drive, All Wheel Drive (AWD), also
called four-wheel drive, means that power is dis-
tributed to all four wheels, which improves trac-
tion.
To achieve the best traction, power is automati-
cally directed to the wheels that have the best
grip. The system continuously calculates the
need for torque to the rear wheels, and can
immediately redistribute up to half of the engine's
torque to the rear wheels.
All-wheel drive also has a stabilizing effect at
higher speeds. In normal driving conditions, most
of the engine's power is directed to the front
wheels. When the vehicle is stationary, all-wheel
drive is always activated in preparation for maxi-
mum traction during acceleration.
All-wheel drive reacts differently depending on
which drive mode is selected.
Related information
•
Drive modes* (p. 439)
•
Low Speed Control* (p. 451)
•
Transmission (p. 433)
Loading ...
Loading ...
Loading ...