traction control Alfa Romeo 4C 2016 Owner handbook (in English)

ASR (AntiSlip
Regulation) SYSTEM
29) 30) 38) 39) 40)
This is an integral part of the ESC
system and automatically operates in
the event of one or both drive wheels
slipping, loss of grip on wet roads
(aquaplaning) and acceleration on
slippery, snowy or icy roads, etc.
Depending on the slipping conditions,
two different control systems are
activated:
if the slipping involves both drive
wheels, the ASR system intervenes,
reducing the power transmitted by the
engine;
if the slipping only involves one of
the drive wheels, it also intervenes
automatically, braking the wheel that is
slipping.
System intervention
This is indicated by the flashing of the
warning light on the instrument
panel, to inform the driver that the car is
in critical stability and grip conditions.
HILL HOLDER SYSTEM
This is an integral part of the ESC
system and facilitates starting on
slopes, activating automatically in the
following cases:
uphill: car stationary on a road with a
gradient higher than 5%, engine
running, brake pressed and
transmission in neutral or gear otherthan reverse engaged;
downhill: car stationary on a road
with a gradient higher than 5%, engine
running, brake pressed and reverse
gear engaged.
When setting off, the ESC system
control unit maintains the braking
pressure on the wheels until the engine
torque necessary for starting is
reached, or in any case for a maximum
of 2 seconds, allowing your right foot to
be moved easily from the brake pedal
to the accelerator.
When the 2 seconds have elapsed,
without starting, the system is
automatically deactivated, gradually
releasing the braking pressure. During
this release stage, the typical brake
disengagement noise, indicating that
the car is going to move imminently,
can be heard.
IMPORTANT The Hill Holder system is
not a parking brake; therefore, never
leave the vehicle without having
engaged the handbrake, turned the
engine off and engaged first gear, so
that the vehicle is parked in safe
conditions (for further information read
the "Parking" paragraph in the "Starting
and driving" chapter).
IMPORTANT There may be situations
on small gradients (less than 8%), with
vehicle laden, in which the Hill Holder
system may not activate, causing a
slight reversing motion and increasingthe risk of collision with another vehicle
or object. The driver is, in any case,
responsible for safe driving.
HBA (Hydraulic Brake
Assistant) SYSTEM
41) 42) 43)
The HBA system is designed to
improve the car’s braking capacity
during emergency braking. The system
detects emergency braking by
monitoring the speed and force with
which the brake pedal is pressed, and
consequently applies the optimal brake
pressure. This can reduce the braking
distance, the HBA system therefore
completes the ABS.
Maximum assistance from the HBA
system is obtained pressing the brake
pedal very quickly. In addition, the brake
pedal should be pressed continuously
during braking, avoiding intermittent
presses, to get the most out of the
system.
Do not reduce pressure on the brake
pedal until braking is no longer
necessary.
The HBA system is deactivated when
the brake pedal is released.
“ELECTRONIC Q2”
SYSTEM (“E-Q2”)
The "Electronic Q2" system intervenes
during acceleration on corners, braking
the inner drive wheel and thus
increasing the traction of the outer
wheel (which bears more of the car’s
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GETTING TO KNOW YOUR CAR

“Alfa DNA” SYSTEM
(Dynamic car
control system)
This device allows, using lever A
fig. 47 (on the central tunnel), four car
response modes to be selected
according to driving style and road
conditions:
d=DynamicorRace(sports driving
mode);
n=Natural(mode for driving in
normal conditions);
a=All Weather(mode for driving in
poor grip conditions, such as rain and
snow).
The device also acts on the dynamic
car control systems (engine,
gearbox/transmission, ESC system).
DRIVING MODES
Lever A is monostable type. In other
words, it always remains in a central
position.
The selected driving mode is indicated
by the corresponding LED switching on
in the panel and by an indication on the
display.
“Natural” MODE
It is a manufacturer-recommended
mode aimed at comfort and safety in
normal grip and driving conditions.
ESC and ASR systems:intervention
thresholds aimed at providing comfort
and safety in normal grip and driving
conditions.
"Electronic Q2" system:the system
is calibrated to ensure the best driving
comfort.
Engine and gearbox/transmission:
standard response.
“Dynamic” MODE
Activation
Move the lever A fig. 47 upwards (to the
letter “d”) and hold in this position for
half a second, until the corresponding
LED lights up and the "Dynamic" mode
activation indicator appears on the
display.
When "Dynamic" mode is activated, the
turbocharger pressure (bar) and engine
oil temperature (°C) screen is displayed
automatically fig. 49:
When released, lever A will return to the
central position.
ESC and ASR systems:intervention
thresholds that ensure more enjoyable,
sportier driving whilst guaranteeing the
stability of the car.
"Electronic Q2" system:the system
is calibrated to increase traction whilst
accelerating on bends, improving the
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GETTING TO KNOW YOUR CAR

agility of the car.
Engine and gearbox/transmission:
adoption of sports mapping.
IMPORTANT In "Dynamic", the
sensitivity of the accelerator pedal
increases considerably. Consequently,
driving is less fluid and comfortable.
Deactivation
To deactivate “Dynamic” mode and
return to “Natural”, move lever A
fig. 47 downwards (to letter “a”) and
keep it in this position for half a second.
In this case, the LED corresponding to
“Natural” mode will light up and the
“Natural” mode activation indication will
appear on the display.
“Race” MODE
Activation
Move the lever A fig. 47 upwards (to the
letter “d”) and hold in this position for 5
seconds, until the "Race" mode
activation indicator appears on the
display. When "Race" mode is
activated, the longitudinal/lateral
accelerometer indicator screen
(G-meter information) is displayed
automatically. This considers
gravitational acceleration (G) fig. 50.ESC and ASR systems:the systems
are deactivated in order to ensure the
fullest sensation of sport, leaving the
driver in full control of the vehicle. When
the vehicle is in unstable conditions, the
ESC reactivates automatically when the
brake pedal is pressed until the ABS
intervenes, thus returning the vehicle to
stable conditions.
"Electronic Q2" system:the system
is calibrated to increase traction whilst
accelerating on bends, improving the
agility of the car.
Engine and gearbox/transmission:
adoption of sports mapping.
IMPORTANT In "Race", the sensitivity of
the accelerator pedal increases
considerably. Consequently, driving is
less fluid and comfortable.
IMPORTANT In "Race" mode the
transmission only works in MANUAL
mode. For further details, refer to the"Using the transmission" section in
chapter "Starting and driving".
Deactivation
To deactivate "Race" mode and return
to "Dynamic", move lever A
fig. 47 downwards (to letter “a”) and
keep it in this position for half a second.
In this case, the LED corresponding to
"Dynamic" mode will light up and the
"Dynamic" mode activation indication
will appear on the display.
“All Weather” MODE
Activation
Move the lever A fig. 47 downwards (to
the letter “a”) and hold in this position
for half a second, until the
corresponding LED lights up and the
“All Weather” mode activation indicator
appears on the display.
ESC and ASR systems:intervention
thresholds aimed at ensuring maximum
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