Porsche 911 2020, Owner'S Manual

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Lane Change Assist (LCA)
148
Lane Change Assist (LCA)
1
Lane Change Assist warns the driver about vehicles
that are approaching from the rear or are located in
the blind spot. This applies when overtaking other
vehicles and when being overtaken. Integrated
warning indicators A in both door mirrors light up as
soon as a dangerous situation is detected and
changing lanes seems essential.
At driving speeds below the operating range of the
Lane Change Assist, the additional Rear Turn Assist
also supports the driver by monitoring the area be-
hind the vehicle in turning-off situations. The Rear
Turn Assist is always automatically activated to-
gether with the Lane Change Assist.
Fig. 96: Warning indicator A on door mirror
Switching Lane Change Assist on
and off
Lane Change Assist can be switched on and off in
the PCM.
e ASSIST e Lane Change Assist
If the Lane Change Assist is activated, the warning
indicator on the door mirror comes on briefly when
the ignition is switched on.
WARNING
Lack of attention
The Lane Change Assist and Rear Turn Assist are not
a substitute for the driver's attentiveness. The driver
is still responsible for taking due care when changing
lanes.
e Keep the direction of travel and the relevant area
around the vehicle in view at all times.
WARNING
Restricted range of the
radar sensor
The range of the radar sensor may be restricted
when driving round tight bends, over humps or in
bad weather conditions (rain, snow, ice, heavy
spray). Vehicles may not be adequately detected, or
may not even be detected.
e
Keep the direction of travel and the relevant area
around the vehicle in view at all times.
WARNING
Undetected vehicles
Vehicles cannot or may not be detected in time in
the following situations:
– There is no indication in the case of vehicles
approaching at high speed from behind or ve-
hicles that are falling back.
– Lane Change Assist does not work on tight
bends.
– Lane Change Assist only alerts you to approach-
ing vehicles or vehicles in the blind-spot above a
driving speed of approx. 9 mph (15 km/h).
– In the case of the Rear Turn Assist, it may occur
that, owing to the small differences in speed be-
tween your vehicle and moving or stationary ob-
jects, fixed objects (e.g. a metal post) trigger a
warning, or that slow-moving vehicles are not
detected.
– Rear Turn Assist is activated when driving away.
It may therefore occur that vehicles that are al-
ready moving or are driving away will not be de-
tected or will only be detected late. Vehicles
already located immediately next to your vehicle,
and therefore outside the detection range of the
sensor, may also not be detected.
– The rear collision warning does not respond to
cross traffic, vehicles with a small cross-section,
narrow vehicles and objects that are not identi-
fied as vehicles.
– If, when turning-off, your vehicle is not facing in
the direction of the driving lane, but is facing di-
agonally or at right angles to it, approaching ve-
hicles can no longer be detected by the sensors.
e Observe the direction of travel and the relevant
area around the vehicle closely at all times.
1. Available in some countries