Polestar 2 2020, Manual

Page: 312 / 568

Limitations of Driver
Alert Control
The Driver Alert Control (DAC) function may
have limitations in certain situations.
In some cases the system may issue a warning
despite driving ability not deteriorating, for
example:
• in strong side winds
• on rutted road surfaces.
Related information
• Driver Alert Control (p. 310)
• Limitations for camera unit (p. 341)
• Limitations for radar device (p. 329)
WARNING
In some cases, driving behaviour is not
affected despite driver fatigue – e.g. when
using the Pilot Assist function – resulting
in the driver not getting a warning from
DAC.
It is therefore important to always stop
and take a break at the slightest feeling of
fatigue, regardless of whether the func-
tion has given a warning.
NOTE
This function uses the car's camera
and/or radar units, which have certain
general limitations.
Warning and auto-
brake while reversing
There are systems in the car that can assist the
driver to detect obstacles when reversing and
even brake automatically if the driver does not
manage to act in time.
The Rear Auto Brake (RAB) and Cross Traffic
Alert (CTA) functions are only active if the car
rolls backwards or if reverse gear has been
selected.
If obstacles are detected:
1. A warning signal and the parking assistance
graphic illuminate to indicate the position of
the obstacle.
2. If the driver does not pay attention to the
warning and a collision is unavoidable, the car
is auto-braked and an explanatory text mes-
sage is shown for why the car was braked.
If the accelerator pedal is depressed forcefully,
the car also reverses after braking automati-
cally.
Obstacles immediately behind
Rear Auto Brake is intended to help the driver
detect stationary obstacles that may be directly
behind the car when it is being reversed.
This function is primarily designed to detect sta-
tionary obstacles that are higher than the rear
bumper – and not moving vehicles, for example.
Brake intervention with Rear Auto Brake is
active at speeds below 10 km/h (6 mph).
Rear Auto Brake needs to be deactivated before
a trailer, bicycle rack or similar is connected to
the car.
Obstacles from the side
Cross Traffic Alert is designed to help the driver
detect traffic crossing behind the car when it is
reversing.
312 Driver support