Porsche 911 Turbo 2014, Owner'S Manual

Page: 169 / 300

Driving and Driving Safety
167
Active Safety – Porsche “Active Safe”
The adaptive cruise control sensor is used for the
Porsche “Active Safe” functions.
These include:
– Brake system prefilling
Prefilling of the brake system if the radar
sensor detects that the vehicle is coming
critically close to a moving obstacle in order to
bridge the air gaps and improve braking
response.
– Brake Assist
Reduction of the activation threshold of the
Brake Assist function if the sensor detects that
the vehicle is coming critically close to a
moving obstacle.
The activation threshold of the Brake Assist
function is reduced in three stages, depending
on how critical the danger situation is.
–
Target braking
If the radar sensor detects that the vehicle is
coming critically close to a moving obstacle
and, at the same time, braking power is
inadequate, brake pressure can be increased
in accordance with the situation, through to full
braking if required.
Information
All Porsche “Active Safe” functions are active for
speeds of more than 20 mph (30 km/h).
Latent warning (visual)
If the vehicle is driving too close to the vehicle in
front for a long time, to avoid a collision if the
vehicle in front brakes, a latent warning appears
on the multi-function display to warn the driver.
f
Stay further back from the vehicle in front if
necessary.
Prewarning (acoustic and visual)
If the radar sensor detects that the vehicle is
coming critically close to and is very likely to
collide with a moving obstacle in front, an acoustic
and visual prewarning is issued.
This warns the driver and still allows a collision to
be prevented if the driver reacts accordingly.
Risk of collision with the vehicle in front.
f
Brake immediately.
Insufficient distance
WARNING h
14_991_Turbo_21.book Seite 167 Mittwoch, 9. April 2014 2:19 14