four wheel drive Alfa Romeo Giulia 2019 Owner's Manual

WARNING
31)If a failure is present with sharp braking, the rear wheels may lock and the vehicle may swerve.
Symbol What it means
GENERIC INDICATION
The symbol indicates information and failures.
The accompanying messages describe the failure.
FOUR WHEEL DRIVE FAILURE
This symbol switches on to report a four wheel drive system failure.
Contact an Alfa Romeo Dealership as soon as possible to have the failure eliminated.
TEMPORARY FOUR-WHEEL DRIVE FAILURE (where provided)
The symbol will appear to indicate that the AWD dynamic control system is temporarily deactivated to prevent damage because of
high engine load. The traction system will work in RWD mode in this case.
Until the symbol appears on the display, reduce the load to allow the system to cool down. The AWD system will resume normal
operation when the symbol disappears from the display.
DYNAMIC DRIVE CONTROL SYSTEM FAILURE
This symbol appears to indicate a traction system control failure.
AFS SYSTEM FAILURE
The symbol appears to indicate the automatic directional light system failure.
Go to an Alfa Romeo Dealership to have the system checked.
68
KNOWING THE INSTRUMENT PANEL

ACTIVE SAFETYSYSTEMS
The vehicle may be equipped with the
following active safety devices:
ABS (Anti-Lock Brakes);
DTC (Drive Train Control);
ESC (Electronic Stability Control);
TC (Traction Control);
PBA (Panic Brake Assist);
HSA (Hill Start Assist);
AST (Alfa™ Steering Torque);
ATV (Alfa™ Active Torque Vectoring).
For the operation of the systems, see the
following pages.
ABS (Anti-lock Braking System)
This system, which is an integral part of
the braking system, prevents one or more
wheels from locking and slipping in all
road surface conditions, irrespective of
the intensity of the braking action,
ensuring that the vehicle can be
controlled even during emergency
braking and optimising stopping
distances.
The system intervenes during braking
when the wheels are about to lock,
typically in emergency braking or
low-grip conditions, when locking may be
more frequent.
The system also improves control and
stability of the vehicle when braking on a
surface where the grip of the left and
right wheels varies, or on corners.The Electronic Braking Force Distribution
(EBD) system completes the system
allowing the brake force to be distributed
between the front and rear wheels.
System intervention
The ABS equipped on this vehicle is
provided with the "Brake by wire"
(Integrated Brake System - IBS) function.
With this system, the brake pedal
command given by pressing the brake
pedal is not transmitted hydraulically but
electronically, therefore, the light
pulsation that could be felt on the pedal
with the traditional system is no longer
perceptible.33) 34) 35) 36) 37) 38)
DTC (Drive Train Control)SYSTEM(where provided)
Some versions of this vehicle are
equipped with an automatically
activated/deactivated four-wheel drive
system (AWD), which offers an optimal
drive for countless driving conditions and
road surfaces. The system reduces the
slipping of the tyres to a minimum,
automatically redistributing the torque
to the front and rear wheels, as needed.
To maximize fuel savings, the car with
AWD automatically passes to rear-wheel
drive (RWD) when the road and
environmental conditions are such that
they would not cause the tyres to slip.When the road and environmental
conditions require better traction, the
vehicle automatically goes to AWD mode.
39)
IMPORTANT If the system failure symbol
switches on, after starting the engine or
while driving, it means that the AWD
system is not working properly. If the
warning message activates frequently, it
is recommended to carry out the
maintenance operations.
40)
ESC (Electronic Stability Control)
SYSTEM
The ESC system improves the directional
control and stability of the car in various
driving conditions.
The ESC system corrects the car’s
understeer and oversteer, distributing
the brake force on the appropriate
wheels. The torque supplied by the
engine can also be reduced in order to
maintain control of the vehicle.
The ESC system uses sensors installed
on the car to determine the trajectory
that the driver intends to follow and
compares it with the car’s effective
trajectory. When the real trajectory
deviates from the desired trajectory, the
ESC system intervenes to counter the
vehicle’s understeer or oversteer.
Oversteer: occurs when the car is
72
SAFETY

AST (Alfa™ Steering Torque)SYSTEM
56)
The AST function uses the integration of
the ESC system with the electric power
steering to increase the safety level of
the whole vehicle.
In critical situations (braking on surfaces
with different grip conditions), through
the AST function the ESC system
controls the steering to implement an
additional torque contribution on the
steering wheel, to suggest the most
correct manoeuvre to the driver.
The coordinated action of the brakes and
steering increases the sensation of
safety and control of the vehicle.
ATV (Alfa™ Active Torque Vectoring)
SYSTEM
The dynamic drive control is used to
optimize and balance the drive torque
between the wheels of the same axis. The
ATV system improves the grip in turns,
sending more drive torque to the external
wheel.
Given that, in a turn, the external wheels
of the car travel more than the internal
ones and therefore turn faster, sending a
higher thrust to the external rear wheel
allows for the car to be more stable and
to not suffer a phenomenon called
"understeer". Understeer occurs when,
during a turn, a car tends to widen the settrajectory, in this situation the lateral
acceleration the car is subjected to
becomes higher that the grip of the tyres,
which are unable to maintain the car in
the trajectory set by the driver through
the steering angle determined by turning
the steering wheel.
WARNING
33)For maximum efficiency of the braking
system, a bedding-in period of about 500 km
(310 miles) is required: during this period it
is advisable to avoid sharp, repeated and
prolonged braking.
34)If the ABS intervenes, this indicates that
the grip of the tyres on the road is nearing its
limit: you must slow down to a speed
compatible with the available grip.
35)The ABS cannot overrule the natural
laws of physics, and cannot increase the grip
available according to the condition of the
road.
36)The ABS cannot prevent accidents,
including those due to excessive speed on
corners, driving on low-grip surfaces or
aquaplaning.
37)The capability of the ABS must never be
tested irresponsibly and dangerously, in
such a way as to compromise personal
safety and the safety of others.
38)For the correct operation of the ABS, the
tyres must of necessity be the same make
and type on all wheels, in perfect condition
and, above all, of the prescribed type and
dimensions.
39)There may be a brief delay in shifting to
AWD mode after a tyre slipping event.40)When a DTC system failure symbol
appears, the driver must be aware of the
different driving reaction and therefore
reduce the speed. The symbol
warns the
driver not to drive in areas that require
four-wheel drive or on snow-covered roads.
41)The ESC system cannot alter the natural
laws of physics, and cannot increase grip,
which depends on the condition of the road.
42)The ESC system cannot prevent
accidents, including those due to excessive
speed on corners, driving on low-grip
surfaces or aquaplaning.
43)The capability of the ESC system must
never be tested irresponsibly and
dangerously, in such a way as to compromise
personal safety and the safety of others.
44)For the correct operation of the ESC
system, the tyres must necessarily be of the
same make and type on all wheels, in perfect
condition and, above all, of the prescribed
type and size.
45)ESC performance features must not
induce the driver to take unnecessary or
unwarranted risks. Your driving style must
always be suited to the road conditions,
visibility and traffic. The driver is, in any
case, responsible for safe driving.
46)For the correct operation of the TC
system, the tyres must of necessity be the
same make and type on all wheels, in perfect
condition and, above all, of the prescribed
type and dimensions.
47)TC performance features must not
induce the driver to take unnecessary or
unwarranted risks. Your driving style must
always be suited to the road conditions,
visibility and traffic. The driver is, in any
case, responsible for safe driving.
74
SAFETY

BROKEN-DOWN VEHICLE
TOWING
REAR WHEEL DRIVE (RWD) VERSIONS
It is recommended to tow the vehicle
with all four wheels lifted from the
ground on the platform of a roadside
assistance vehicle.
If a breakdown truck with platform is not
available, the vehicle must be towed with
the rear wheels LIFTED from the ground
(using a trailer or special equipment
allowing lifting of the rear wheels).
IMPORTANT Towing vehicles without
complying with the above mentioned
prescriptions can cause serious damage
to the vehicle.FOUR-WHEEL DRIVE (AWD) VERSIONS
It is recommended to tow the vehicle
with all four wheels lifted from the
ground on the platform of a roadside
assistance vehicle.
IMPORTANT Avoid lifting the front (or
rear) wheels only, using a trailer or
vehicle that allows lifting the wheels of
one axle only. Lifting the front (or rear)
wheels only while towing might damage
the transmission or the transfer unit.
IMPORTANT If a vehicle is towed without
complying with the above requirements,
the transmission and/or the transfer unit
might be seriously damaged. Damage due
to incorrect towing is not covered by
warranty.
TOWING THE VEHICLE
154) 155)
In order to be able to tow the vehicle,
which has been in an accident or has
broken down, on the road surface and
only for short distances, a tow hook is
provided in the tools container inside the
boot.
Proceed as follows to use the tow hook:
unhook the cap fig. 148 on the front or
rear fender (where provided) fig. 148,
pressing on the upper part;
14808136S0001EM
157