Active Emergency Braking - Opel Grandland X Owner's Manual

172 Driving and operating
● The sensor in the windscreen or
the radar unit behind the front
bumper are blocked by snow, ice,
slush, mud, dirt etc.
● The windscreen is damaged or
affected by foreign items, e.g.
stickers.

Active emergency braking

Active emergency braking can help to
reduce the damage and injury from
crashes with vehicles, pedestrians
and obstacles directly ahead, when a
collision can no longer be avoided
either by manual braking or by
steering. Before the active
emergency braking applies, the driver
is warned by the Forward collision
alert 3 170 or the Front pedestrian
protection alert 3 175.
The feature uses various inputs (e.g.
camera sensor, radar sensor, brake
pressure, vehicle speed) to calculate
the probability of a frontal collision.
9 Warning
This system is not intended to
replace the driver responsibility for
driving the vehicle and looking
ahead. Its function is limited to
supplemental use only to reduce
the vehicle speed before a
collision.
The system may not react to
animals. After a sudden lane
change, the system needs a
certain time to detect the next
preceding vehicle.
The driver must always be ready
to take action and apply the brakes
and steer to avoid collisions.
Functionality
If equipped only with front camera the
active emergency braking operates in
forward gear above walking speed up
to 85 km/h. With radar sensor and
front camera active emergency
braking operates in forward gear
above walking speeds to 140 km/h.
A precondition is that forward collision
alert with front camera system is not
deactivated in the vehicle
personalisation menu 3 106.
The system includes:
● brake preparation system
● emergency automatic braking
● forward looking brake assist
● intelligent brake assist (only with
radar sensor)
● forward collision alert
● front pedestrian protection
Brake preparation system
When approaching a vehicle ahead
or a pedestrian so quickly that a
collision is likely, the brake
preparation system slightly
pressurizes the brakes. This reduces
the response time, when a manual or
automatic braking is requested.
The brake system is prepared so that
braking can occur more rapidly.