Tja (Traffic Jam Assist) System - Alfa Romeo STELVIO Owner's Handbook Manual

rain, snow, fog, etc.);
either the camera or radar are
damaged, covered or obstructed (e.g. by
mud, ice, snow, etc.);
when driving in the hills or on roads
with narrow turns;
near motorway tollgates;
when the motorway entrance or exit is
more than 20 ft (6 metres) wide;
if the camera is exposed to dazzling
light (e.g. reflection or direct sunlight;
if the Navigation system information
is not available and/or is being
recalculated.
WARNING
144) Many unpredictable situations that
can affect the performance of the HAS
system may arise. The driver must be ready
to react immediately and take control of the
car in place of the HAS system.
145) If the car approaches a bend that is too
narrow with respect to the current speed,
the HAS system turns off. The driver must
therefore be ready to immediately regain
control of the car at any time. To avoid this
situation it is important that the car speed
set does not exceed the current road speed
limit and that the driver keeps his or her
hands on the steering wheel.
174
146) The HAS system uses a hands on
steering wheel detection sensor: the driver
must keep his hands on the steering wheel
at all times. If the hands are removed from
the steering wheel for a certain period of
time, the system disengages and the ACC is
paused.
147) When using the HAS system, hold the
steering wheel and take into consideration
the road conditions and the surrounding
traffic. The driver must therefore be ready
to immediately regain control of the car
at any time. Failure to observe these
instructions can cause severe injuries with
even lethal consequences.
148) The HAS system is an aid for the driver,
who must always pay full attention while
driving. The responsibility always rests
with the driver, who must take into account
the traffic conditions in order to drive in
complete safety. The driver must always
maintain a safe distance from the vehicle in
front.
149) If the windscreen must be replaced due
to scratches, chipping or breakage, contact
exclusively an Alfa Romeo Dealership. Do
not replace the windscreen on your own, risk
of malfunction! It is advisable to replace the
windscreen if it is damaged in the area of
the camera.
TJA (Traffic Jam Assist)
SYSTEM
(where provided)
150) 151) 152) 153) 154) 155) 156) 157)
It is a driving assistance system that can
be activated on all road types.
The system uses information from the
front camera and radar to help you keep
the car in the middle of the lane at a
constant speed.
If the event that the lane marking line is
missing or not correctly recognised, the
TJA system may also use information
from adjacent and preceding vehicles.
This condition may occur in congested
traffic, when the car in front and/or
objects around the car obstruct the lane
markings. In this case, the system can use
the queues of cars in the traffic to define
the driving trajectory. Alternatively, at
speeds below 18 mph (20 km/h), the
system can use the "lock-on" strategy,
which allows it to automatically following
the car in front.
The HAS combines Active Cruise Control
(ACC) functions and lane centring logic to
control the trajectory of the car holding it