Mercedes-Benz GLS Operator's Manual page 76

Driving safety systems
74
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensors checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at a qualified specialist workshop.
Function
To activate or deactivate: activate or deac-
X
tivate Active Brake Assist with cross-traffic
function using the on-board computer
( page 242).
Y
If the Active Brake Assist with cross-traffic
function is deactivated, the æ symbol
appears in the multifunction display.
If you have activated DSR (
Active Brake Assist with cross-traffic function is
deactivated.
Starting at a speed of around 4 mph (7 km/h),
this function warns you if you rapidly approach a
vehicle in front. An intermittent warning tone
will then sound and the · distance warning
lamp will light up in the instrument cluster.
Brake immediately to defuse the situation.
X
or
Take evasive action provided it is safe to do
X
so.
Active Brake Assist with cross-traffic function
can also brake the vehicle automatically under
the following conditions:
the driver and front-passenger have their seat
R
belts fastened
and
the vehicle speed is between approximately
R
4 mph (7 km/h) and 124 mph (200 km/h)
Up to a speed of approximately 44 mph
(70 km/h), Active Brake Assist with cross-traffic
function may react to:
stationary objects in the path of your vehicle,
R
e.g. stopped or parked vehicles
pedestrians in the path of your vehicle
R
i
If there is an increased risk of a collision,
preventive passenger protection measures
®
(PRE-SAFE ) are triggered (
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
page 218), the
Y
page 58).
Y
action or accelerate significantly, the vehicle
may perform automatic emergency braking, up
to the point of full brake application. Automatic
emergency braking is not performed until imme-
diately prior to an imminent accident.
If you apply the brake yourself in a critical sit-
uation or during autonomous braking, braking
assistance is provided according to the situa-
tion. If necessary, this increases the brake pres-
sure up to full brake application.
To avoid a collision, Active Brake Assist with
cross-traffic function calculates the brake force
necessary if:
you approach an obstacle, and
R
Active Brake Assist with cross-traffic function
R
has detected a risk of a collision
When driving at a speed under 20 mph
(30 km/h): if you depress the brake pedal,
Active Brake Assist with cross-traffic function is
activated. The increase in brake pressure from
Active Brake Assist with cross-traffic function is
carried out at the last possible moment.
When driving at a speed above 20 mph
(30 km/h): if you depress the brake pedal
sharply, Active Brake Assist with cross-traffic
function automatically increases the brake pres-
sure to a degree suited to the traffic situation.
Active Brake Assist with cross-traffic function
provides braking assistance in hazardous situa-
tions with vehicles in front within a speed range
between 4 mph (7 km/h) and 155 mph
(250 km/h).
Up to a speed of approximately 44 mph
(70 km/h) the Active Brake Assist with cross-
traffic function assists you with braking in haz-
ardous situations with:
stationary obstacles in the path of the vehicle,
R
e.g. stopped or parked vehicles
stationary pedestrians in the path of the vehi-
R
cle
obstacles crossing your path that move in the
R
detection range of the sensors and are detec-
ted
Keep the brake pedal depressed until the
X
emergency braking situation is over.
ABS prevents the wheels from locking.
You can prevent the intervention of Active Brake
Assist with cross-traffic function at any time by:
depressing the accelerator pedal further
R
activating kickdown
R
releasing the brake pedal
R