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Adaptive Cruise Control (ACC)
A
The status display B changes from gray to red.
B
Information
C
If speed and distance control was interrupted by
D
moving the control lever to position 3 (CANCEL), it
can only be resumed again when the vehicle is mov-
E
ing and no stationary objects are detected in front.
F
G
ACC warning messages
H
Takeover prompt in active control mode (ACC
I
active)
J
If Adaptive Cruise Control has detected that braking
K
assistance is required on the part of the driver, a
warning signal sounds and a warning message ap-
L
pears on the instrument cluster.
For information about Adaptive Cruise Control (ACC)
M
warning messages:
N
> Please see chapter "Warning and Information
Messages" on page 293.
O
P
WARNING
Q
R
In this case, the deceleration through Adaptive
S
Cruise Control is insufficient to prevent a collision.
e Brake immediately.
T
U
Exceptional conditions with
V
Adaptive Cruise Control (ACC)
W
Adaptive Cruise Control is not available because
X
Adaptive Cruise Control (ACC) was switched off.
– If the ignition is switched off.
Y
– When PSM is off.
Z
46
– When driver's door is open and seat belt is not
fastened on the driver side.
– When the electric parking brake is activated.
– If the selector lever is in position N, R and P.
– On steep upward or downward slopes.
Traffic situations in which ve-
hicles cannot be reliably detected
The Adaptive Cruise Control (ACC) radar sensor de-
tects a narrow, conical area in front of the driver's
vehicle.
Depending on the traffic situation and the size of the
vehicle ahead, detection may be restricted or unsta-
ble. The system may brake too late or unexpectedly.
e Particular attentiveness is required while driving.
e Brake if necessary.
Inadequate braking
power during automatic
braking
Fig. 6: Weaving and narrow vehicles
A – Erratic/weaving vehicles
The vehicle is only detected if it is completely in its
own driving lane.
B – Vehicles with a small cross-section/nar-
row vehicles
will not be detected or will be detected too late.
Fig. 7: Stationary vehicles on bends
C – Entering and exiting bends
Vehicles will not be detected or will be detected too
late, or Adaptive Cruise Control will react to vehicles
in adjacent lanes.
D – Stationary vehicles
A stationary vehicle or obstacle that suddenly ap-
pears in the radar sensor's range, e.g. after a vehicle
ahead changes lanes, may only be detected to a re-
stricted extent by Adaptive Cruise Control (ACC).
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