Mercedes-Benz GLA 250 2019 Operator's Manual page 161

sound and the distance warning lamp will light
up in the instrument cluster. Brake immedi-
ately in order to increase the distance to the
vehicle in front or take evasive action provided
it is safe to do so.
Active Distance Assist DISTRONIC operates in
the speed range between 0 mph (0 km/h) and
120 mph (200 km/h).
Change into a lower gear in good time on long
and steep downhill gradients. This is especially
important if the vehicle is laden. By doing so,
you will make use of the braking effect of the
engine. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly.
Do not use Active Distance Assist DISTRONIC
on roads with steep gradients.
For Active Distance Assist DISTRONIC to
assist you when driving, the radar sensor sys-
tem must be operational.
As Active Distance Assist DISTRONIC trans-
mits radar waves, it can resemble the radar
detectors of the responsible authorities. You
can refer to the relevant chapter in the Opera-
tor's Manual if questions are asked about this.
i
USA only: This device has been approved
by the FCC as a "Vehicular Radar System".
The radar sensor is intended for use in an
automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, and is not permitted by the
FCC. 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.
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.
Driving systems
Important safety notes
G
WARNING
Active Distance Assist DISTRONIC does not
react to:
people or animals
R
stationary objects in the road, e.g. stop-
R
ped or parked vehicles
oncoming vehicles and crossing traffic
R
As a result, Active Distance Assist
DISTRONIC may neither give warnings nor
intervene in such situations. There is a risk
of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
G
WARNING
Active Distance Assist DISTRONIC cannot
always clearly identify other road users and
complex traffic situations.
In such cases, Active Distance Assist
DISTRONIC can:
give an unnecessary warning and then
R
brake the vehicle
neither give a warning nor intervene
R
accelerate or brake unexpectedly
R
There is a risk of an accident.
Continue to drive carefully and be ready to
brake, especially if Active Distance Assist
DISTRONIC warns you.
G
WARNING
Active Distance Assist DISTRONIC brakes
your vehicle with up to 50% of the maximum
possible deceleration. If this deceleration is
not sufficient, Active Distance Assist
DISTRONIC alerts you with a visual and
acoustic warning. There is a risk of an acci-
dent.
Adjust your speed in these cases and main-
tain sufficient distance.
Apply the brakes yourself and/or take eva-
sive action.
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