Polestar 2 2020, Manual

Page: 264 / 568

Adaptive cruise
control
76
The adaptive cruise control (ACC
77
) can help the
driver to maintain a constant speed, combined
with a preset time interval to the vehicle ahead.
The camera and radar unit measures the dis-
tance to the vehicle ahead.
Camera unit
Radar unit
Distance measurement to vehicle ahead
An adaptive cruise control can provide a more
relaxing driving experience on long journeys on
motorways and long straight main roads in
smooth traffic flows.
The driver selects the desired speed and a time
interval to the vehicle ahead. If the camera and
radar units detect a slower vehicle in front of the
car, the speed is automatically adapted using
the preset time interval to the vehicle ahead.
When the road is clear again the car returns to
the selected speed.
Adaptive Cruise Control regulates the speed
with acceleration and braking. It is normal for
the brakes to emit a low sound when they are
being used to adjust the speed.
Adaptive cruise control attempts to:
• regulate the speed smoothly. In situations
that demand sudden braking the driver must
brake himself/herself. This applies in cases of
large speed differences or if the vehicle in
front brakes suddenly. Due to the limitations
of the radar unit, braking may come unex-
pectedly or not at all.
• follow the vehicle ahead in the same lane at a
time interval set by the driver. If the radar unit
cannot see any vehicle ahead, the car will
instead maintain the speed stored by the
driver. This also takes place if the speed of the
vehicle ahead increases and exceeds the
stored speed.
Steep roads and/or heavy load
Bear in mind that the adaptive cruise control is
primarily intended for use when driving on level
road surfaces. The function may have difficulty
in keeping the correct distance from the vehicle
ahead when driving on steep downhill gradients
- in which case, be extra attentive and ready to
brake.
Do not use adaptive cruise control if the car has
a heavy load or with a trailer connected to the
car.
Related information
• Cruise control functions (p. 254)
• Selecting and activating the cruise control
function (p. 257)
• Deactivating cruise control functions (p. 259)
• Standby mode for adaptive cruise control
*
(p. 266)
• Symbols and messages for adaptive cruise
control * (p. 267)
• Setting the time interval to the vehicle ahead
(p. 281)
76 This function can be either standard or optional,
depending on market.
77 Adaptive Cruise Control
264 Driver support