Adaptive cruise control
Speed and distance
control system
Description
Applies to vehicles: with adaptive cruise cont rol
The adaptive cruise control driver assistance
program is a combined speed and distance
control system .
Fig. 111 Front bumper: Positio n of radar sensor
Any speed between about 20 mph (30 km/h)
and about 95 mph (150 km/h) can be set and
held with t he adaptive cruise cont rol. The sys-
tem also regulates a pre-set distance from the
vehicle ahead within the limits of the system
described .
Driving can be more relaxed, particularly on
long trips on interstates or on other highways
that are generally straight.
How does it work?
You can operate the adaptive cruise control
using the lever on the steering wheel column
c:> page 101, How is the speed stored? and
c:> page 103, How is the distance (time inter -
val) set? .
Driver information
Important information is brought up in the
speedometer and in the instrument cluster
display as the vehicle is being driven
c:> page 104, Driver information .
What is important for you to know
The adaptive cruise control is set with system-
specified limits, that is, as a driver, you will
have to adjust the speed and distance to the
Adaptive cruise control 99
vehicle ahead in some instances r:!)page 108,
Driver intervention prompt
and c:> page 108,
System limitations.
_& WARNING
Improper use of the adaptive cruise con-
trol can cause collisions, other accidents
and serious personal injury.
- Never drive at speeds that are too high
for traffic, road and weather conditions.
- Never follow the vehicle in front so close-
ly that you cannot stop your vehicle safe-
ly. The adaptive cruise control cannot
brake the vehicle safely when you follow
another vehicle too closely. Always re-
member that the adaptive cruise control
has a braking power that is only about
25% of the vehicle's maximum braking
ability, the automatic braking function
cannot bring the vehicle to a stop.
- Never use adaptive cruise control on
roads where you cannot drive safely at a
steady speed, including city, stop-and-go
or heavy traffic, on winding roads or
when road conditions are poor (for exam-
ple, on ice, gravel, in fog, heavy rain or
on wet roads that increase the risk of hy-
droplaning) .
- The radar sensor's
vision can be reduced
by rain, snow and heavy spray. This can
result in vehicles driving ahead being in-
adequately detected or, in some circum-
stances, not detected at all.
If necessary,
take action yourself!
- Always turn off adaptive cruise control
when entering turn lanes, highway exit
lanes and construction zones or similar
situations because the vehicle will auto-
matically accelerate to the stored speed.
- Never rest your foot on the accelerator
pedal, especially when the adaptive
cruise control is being used because do-
ing so will override the braking function
and prevent the brakes from being ap-
plied by the system when it detects a sit-
uation when the brakes must be applied.
- Always remember that the adaptive
cruise control has limits - it does not
-
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