traction control Alfa Romeo 4C 2017 Owner's Manual

STARTING AND OPERATING
CONTENTS
STARTING PROCEDURES ...............134
▫ Automatic Transmission ...............134
▫ Normal Starting ..................... .134
▫ Cold Weather Operation ...............135
▫ If Engine Fails To Start ................135
▫ After Starting ...................... .135
▫ Turbo Charger “Cool Down” ............135
 SIX-SPEED ALFA TWIN CLUTCH
TRANSMISSION ..................... .136
▫ Using The Transmission ...............136
 ALFA DNA SYSTEM (DYNAMIC VEHICLE
CONTROL SYSTEM) ...................141
▫ Driving Modes ..................... .142
▫ System Failure ...................... .145
▫ Launch Control .....................145 
DRIVING ON SLIPPERY SURFACES ........146
▫ Acceleration ....................... .146
▫ Traction .......................... .146
 DRIVING THROUGH WATER ............147
▫ Flowing/Rising Water .................147
▫ Shallow Standing Water ................147
 PARKING BRAKE .....................148
 BRAKE SYSTEM ..................... .150
 ESC (ELECTRONIC STABILITY CONTROL)
SYSTEM ........................... .150
▫ System Activation ....................151
▫ System Intervention ..................152
▫ Electronic Brake Distribution System
(EBD) ............................ .152
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▫Four-Wheel Anti-Lock Brake System
(ABS) ........................... .152
▫ Cornering Brake Control System (CBC) .....153
▫ Drag Torque Control System (DTC) .......153
▫ AntiSlip Regulation System (ASR) ........154
▫ Hill Start Assist (HSA) .................155
▫
Hydraulic Brake Assistant System (HBA) . . . .156
▫ Electronic Q2 System (E-Q2) ............156
▫ Ready Alert Brake System (RAB) .........156
 TIRE SAFETY INFORMATION ............157
▫ Tire Markings ...................... .157
▫ Tire Identification Number (TIN) ..........160
▫ Tire Terminology And Definitions .........161
▫ Tire Loading And Tire Pressure ..........162
 TIRES — GENERAL INFORMATION .......167
▫ Tire Pressure ...................... .167
▫ Tire Inflation Pressures ................168 ▫
Tire Pressures For High Speed Operation . . .169
▫ Radial Ply Tires .....................169
▫ Tire Types ......................... .170
▫ Run Flat Tires — If Equipped ............171
▫ Spare Tires — If Equipped ..............171
▫ Tire Spinning ...................... .174
▫ Tread Wear Indicators .................175
▫ Life Of Tire ....................... .175
▫ Replacement Tires ....................176
 TIRE CHAINS (TRACTION DEVICES) ......177
 TIRE ROTATION RECOMMENDATIONS . . . .178
 DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES .......178
▫ Treadwear ......................... .178
▫ Traction Grades ..................... .179
▫ Temperature Grades ...................179
 TIRE PRESSURE MONITORING
SYSTEM (TPMS) ..................... .179
132 STARTING AND OPERATING

WARNING!
Launch Control is intended for off-highway or
off-road use only and should not be used on any
public roadways. Use Launch Control only in a
controlled and dry track environment; within the
limits of the law. Actual Launch Control perfor-
mance may change depending on the surface and
current traction conditions. The capabilities of the
vehicle as measured by the performance pages must
never be exploited in a reckless or dangerous man-
ner, which can jeopardize the user ’s safety or the
safety of others. Only a safe, attentive, and skillful
driver can prevent accidents. Failure to follow this
warning may result in serious injury or death.
To discontinue the strategy, simply interrupt the above
sequence of operations or release the accelerator pedal.
DRIVING ON SLIPPERY SURFACES
Acceleration
Rapid acceleration on snow covered, wet, or other
slippery surfaces may cause the driving wheels to pull
erratically to the right or left. This phenomenon occurs when there is a difference in the surface traction under
the rear (driving) wheels.
WARNING!
Rapid acceleration on slippery surfaces is danger-
ous. Unequal traction can cause sudden pulling of
the rear wheels. You could lose control of the
vehicle and possibly have a collision. Accelerate
slowly and carefully whenever there is likely to be
poor traction (ice, snow, wet mud, loose sand, etc.).
Traction
When driving on wet or slushy roads, it is possible for
a wedge of water to build up between the tire and road
surface. This is known as hydroplaning and may cause
partial or complete loss of vehicle control and stopping
ability. To reduce this possibility, the following precau-
tions should be observed:
•
Slow down during rainstorms or when the roads are
slushy.
• Slow down if the road has standing water or
puddles.
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CAUTION!
If the Brake Warning Light remains on with the
parking brake released, a brake system malfunction
is indicated. Have the brake system serviced by an
authorized dealer immediately.
BRAKE SYSTEM
Your vehicle is equipped with dual hydraulic brake
systems. If either of the two hydraulic systems loses
normal capability, the remaining system will still func-
tion. However, there will be some loss of overall brak-
ing effectiveness. You may notice increased pedal travel
during application, greater pedal force required to slow
or stop, and potential activation of the “Brake System
Warning Light”.
In the event power assist is lost for any reason (i.e.,
repeated brake applications with the engine off), the
brakes will still function. However, the effort required
to brake the vehicle will be much greater than that
required with the power system operating.
ESC (ELECTRONIC STABILITY CONTROL)
SYSTEM
The ESC system improves the directional control and
stability of the vehicle in various driving conditions.
The ESC system corrects the vehicle understeer and
oversteer, distributing the brake force on the appropri-
ate wheels. The torque supplied by the engine can also
be reduced in order to maintain control of the vehicle.
WARNING!
•Electronic Stability Control (ESC) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded
by prevailing road conditions. ESC cannot pre-
vent all collisions, including those resulting from
excessive speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also cannot pre-
vent collisions resulting from loss of vehicle
control due to inappropriate driver input for the
conditions. Only a safe, attentive, and skillful
driver can prevent collisions.The capabilities of
an ESC equipped vehicle must never be exploited
(Continued)
150 STARTING AND OPERATING

AntiSlip Regulation System (ASR)
WARNING!
•Electronic Stability Control (ESC) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded
by prevailing road conditions. ESC cannot pre-
vent all collisions, including those resulting from
excessive speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also cannot pre-
vent collisions resulting from loss of vehicle
control due to inappropriate driver input for the
conditions. Only a safe, attentive, and skillful
driver can prevent collisions.The capabilities of
an ESC equipped vehicle must never be exploited
in a reckless or dangerous manner which could
jeopardize the user ’s safety or the safety of others.
• Vehicle modifications, or failure to properly
maintain your vehicle, may change the handling
characteristics of your vehicle, and may nega-
tively affect the performance of the ESC system.
Changes to the steering system, suspension, brak-
ing system, tire type and size or wheel size may
(Continued)
WARNING! (Continued)
adversely affect ESC performance. Improperly
inflated and unevenly worn tires may also de-
grade ESC performance. Any vehicle modifica-
tion or poor vehicle maintenance that reduces the
effectiveness of the ESC system can increase the
risk of loss of vehicle control, vehicle rollover,
personal injury and death.
This is an integral part of the ESC system and automati-
cally operates in the event of one or both drive wheels
slipping, loss of grip on wet roads (hydroplaning) 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.
154 STARTING AND OPERATING

Tire Repair
If your tire becomes damaged, it may be repaired if it
meets the following criteria:
•The tire has not been driven on when flat.
• The damage is only on the tread section of your tire
(sidewall damage is not repairable).
• The puncture is no greater thana¼ofaninch (6
mm).
Consult an authorized tire dealer for tire repairs and
additional information.
Damaged Run Flat tires, or Run Flat tires that have
experienced a loss of pressure should be replaced imme-
diately with another Run Flat tire of identical size and
service description (Load Index and Speed Symbol).
Tire Types
All Season Tires — If Equipped
All Season tires provide traction for all seasons (Spring,
Summer, Fall and Winter). Traction levels may vary
between different all season tires. All season tires can be
identified by the M+S, M&S, M/S or MS designation on the tire sidewall. Use all season tires only in sets of four;
failure to do so may adversely affect the safety and
handling of your vehicle.
Summer Or Three Season Tires — If Equipped
Summer tires provide traction in both wet and dry
conditions, and are not intended to be driven in snow or
on ice. If your vehicle is equipped with Summer tires, be
aware these tires are not designed for Winter or cold
driving conditions. Install Winter tires on your vehicle
when ambient temperatures are less than 40°F (5°C) or
if roads are covered with ice or snow. For more infor-
mation, contact an authorized dealer.
Summer tires do not contain the all season designation or
mountain/snowflake symbol on the tire sidewall. Use
Summer tires only in sets of four; failure to do so may
adversely affect the safety and handling of your vehicle.
WARNING!
Do not use Summer tires in snow/ice conditions.
You could lose vehicle control, resulting in severe
injury or death. Driving too fast for conditions also
creates the possibility of loss of vehicle control.
170 STARTING AND OPERATING

WARNING!(Continued)
only the tire and wheel sizes with load ratings
approved for your vehicle.
•Never use a tire with a smaller load index or
capacity, other than what was originally equipped
on your vehicle. Using a tire with a smaller load
index could result in tire overloading and failure.
You could lose control and have a collision.
• Failure to equip your vehicle with tires having
adequate speed capability can result in sudden
tire failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
TIRE CHAINS (TRACTION DEVICES)
Use of traction devices require sufficient tire-to-body
clearance. Follow these recommendations to guard
against damage.
• Traction device must be of proper size for the tire, as
recommended by the traction device manufacturer. •
Install on Rear Tires Only.
• Reduced size snow chains with a maximum projec-
tion of 7 mm beyond the tire profile can be fitted on
vehicles equipped with 235/40 R18 rear tire.
CAUTION!
To avoid damage to your vehicle or tires, observe
the following precautions:
•
Because of restricted traction device clearance be-
tween tires and other suspension components, it is
important that only traction devices in good condi-
tion are used. Broken devices can cause serious
damage. Stop the vehicle immediately if noise
occurs that could indicate device breakage. Remove
the damaged parts of the device before further use.
• Install device as tightly as possible and then
retighten after driving about ½ mile (0.8 km).
• Do not exceed 30 mph (48 km/h).
• Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.
•
Do not drive for a prolonged period on dry pave-
ment.
(Continued)
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CAUTION!(Continued)
•Observe the traction device manufacturer ’s in-
structions on the method of installation, operat-
ing speed, and conditions for use. Always use the
suggested operating speed of the device manufac-
turer ’s if it is less than 30 mph (48 km/h).
• Do not use traction devices on a compact spare
tire.
TIRE ROTATION RECOMMENDATIONS
Due to tire design and size, tire rotations on this vehicle
are not possible.
NOTE: For AR 4C models, where available, the vehicle
may be equipped with high performance tires that
guarantee high grip performance with little increase of
wear. Alfa Romeo, in collaboration with Pirelli, devel-
oped a specific high performance tire for the 4C model.
A dedicated Pirelli PZero, identified with an AR mark,
guarantees this vehicle to obtain the highest perfor-
mance capable.
DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
The following tire grading categories were established
by the National Highway Traffic Safety Administration.
The specific grade rating assigned by the tire’s manu-
facturer in each category is shown on the sidewall of the
tires on your vehicle.
All passenger vehicle tires must conform to Federal
safety requirements in addition to these grades.
Treadwear
The Treadwear grade is a comparative rating, based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and one-
half times as well on the government course as a tire
graded 100. The relative performance of tires depends
upon the actual conditions of their use, however, and
may depart significantly from the norm due to varia-
tions in driving habits, service practices, and differences
in road characteristics and climate.
178 STARTING AND OPERATING

Traction Grades
The Traction grades, from highest to lowest, are AA, A,
B, and C. These grades represent the tire’s ability to stop
on wet pavement, as measured under controlled condi-
tions on specified government test surfaces of asphalt
and concrete. A tire marked C may have poor traction
performance.
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or
peak traction characteristics.
Temperature Grades
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat, when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and reduce tire life,
and excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of perfor-
mance, which all passenger vehicle tires must meetunder the Federal Motor Vehicle Safety Standard No.
109. Grades B and A represent higher levels of perfor-
mance on the laboratory test wheel, than the minimum
required by law.
WARNING!
The temperature grade for this tire is established
for a tire that is properly inflated and not over-
loaded. Excessive speed, under-inflation, or exces-
sive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
TIRE PRESSURE MONITORING SYSTEM (TPMS)
The Tire Pressure Monitor System (TPMS) will warn the
driver of a low tire pressure based on the vehicle
recommended cold tire pressure.
The tire pressure will vary with temperature by about
1 psi (7 kPa) for every 12°F (6.5°C). This means that
when the outside temperature decreases, the tire pres-
sure will decrease. Tire pressure should always be set
based on cold inflation tire pressure. This is defined as
the tire pressure after the vehicle has not been driven
for at least three hours, or driven less than 1 mile
(1.6 km) after a three hour period. The cold tire inflation
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