Mercedes-Benz 2010 S550 Automobile User Manual


 
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. this device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Using the radar sensors, the PRE-SAFE
®
Brake detects obstacles that are in your
driving path for a sufficient period of time for
the system to recognize it. If you approach a
vehicle and the PRE-SAFE
®
Brake has
established that the distance to the vehicle
ahead at your current speed is so close that
the PRE-SAFE
®
Brake will not be capable of
slowing the vehicle sufficiently, the system
will initially warn you visually and acoustically.
If you do not apply the brakes yourself or
maneuver around a sensed obstacle, the
vehicle will brake lightly automatically. The
PRE-SAFE
®
system (Y page 54) is activated
when the distance to the vehicle ahead at
your current speed is so close that the PRE-
SAFE
®
Brake will not be capable of slowing
the vehicle sufficiently.
When the danger of a collision still persists
and you do not brake or accelerate
significantly, the PRE-SAFE
®
Brake may
initiate full application of the brakes
automatically.
G
Warning!
The PRE-SAFE
®
Brake will only respond with
brake assistance if it has clearly detected an
object. Detection can be impeded by
R
dirty or covered sensors
R
snowfall or heavy rain
R
disturbance from other radar sources
R
strong radar reflection such as in parking
garages
The PRE-SAFE
®
Brake uses radar signals that
are not reflected well by narrow objects and
absorptive materials. For this reason the PRE-
SAFE
®
Brake will not react to persons,
animals, and approaching traffic or cross-
traffic.
The PRE-SAFE
®
Brake may not detect narrow
vehicles driving in front of you, such as
motorcycles and vehicles driving offset from
your vehicle center.
G
Warning!
Depending on the vehicle speed, the
PRE-SAFE
®
Brake brakes your vehicle with a
maximum of 13 ft/s
2
(4 m/s
2
) before a
possible hard stop. This corresponds to about
40% of the maximum deceleration ability of
your vehicle. The driver must apply the brakes
additionally in order to prevent a collision. The
self-acting hard stop will be initiated when the
imminent danger of a collision exists, e.g.
when an evasive driving maneuver cannot
avoid an accident.
The PRE-SAFE
®
Brake applies the brake pedal
automatically which results in the brake pedal
moving. Therefore keep driver’s foot area
clear at all times, including the area under the
brake pedal. Objects stored in this area may
impair pedal movement which could interfere
with the braking ability of the PRE-SAFE
®
Brake.
Do not place your foot under the brake pedal
– your foot could become caught.
70
Driving safety systems
Safety and security
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