Porsche 911 Manual page 137

Vehicles approaching slowly
Fig. 101: Vehicle approaching slowly
A – Warning indicator in exterior mirror does not
light up
The sensors detect a slowly approaching vehicle – in
the left lane in the example. Due to the small speed
difference and the large distance, the warning indi-
cator in the exterior mirror does not light up.
B – Warning indicator lights up in the information
stage
The slowly approaching vehicle is now closer. Warn-
ing indicator in exterior mirror lights up. Only when
Lane Change Assist regards the speed difference
and distance as critical for changing lanes, does the
warning indicator in the exterior mirror light up. You
are alerted to all vehicles detected by Lane Change
Assist when they are in the "blind-spot area" at the
latest.
C – Warning indicator flashes in the warning stage
If the direction indicator is switched on in driving
situation B, the warning indicator in the exterior
mirror flashes briefly several times. Lane Change
Assist alerts you to the fact that you may have
overlooked a vehicle.
Vehicles falling back slowly
Fig. 102: Vehicle falling back slowly
A – Warning indicator in exterior mirror does not
light up
Lane Change Assist has not yet detected the over-
taken vehicle. Warning indicator in exterior mirror
does not light up.
B – Warning indicator lights up in the information
stage
The slowly receding vehicle (less than approx.
15 km/h speed difference) – in the right lane in the
example – is detected by Lane Change Assist.
Warning indicator in exterior mirror lights up.
C – Warning indicator flashes in the warning stage
If the direction indicator is switched on in driving
situation B, the warning indicator in the exterior
mirror flashes briefly several times. Lane Change
Lane Change Assist (LCA)
Assist alerts you to the fact that you may have
overlooked a vehicle.
Vehicles falling back quickly
Fig. 103: Vehicle falling back quickly
A – Warning indicator in exterior mirror does not
light up
Lane Change Assist has not yet detected the over-
taken vehicle. Warning indicator in exterior mirror
does not light up.
B – Warning indicator in exterior mirror does not
light up
Lane Change Assist detects the vehicle on the right
that is falling back fast (speed difference of more
than approx. 15 km/h (9 mph)) – in the right lane in
the example – but does not regard it as critical for
changing lanes because it is falling back fast. Warn-
ing indicator in exterior mirror does not light up.
C – Warning indicator in exterior mirror does not
light up
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
135