2020 MASERATI GRANTURISMO tire type

In the event of a side impact, the
Occupant Restraint Controller (ORC)
processes the signals coming from side
sensors and activates air bag
deployment when necessary.
The air bag deploys almost
instantaneously, placing itself between
the occupants and the side of the
vehicle. The air bag deflates
immediately afterward.
In the case of low-severity side
collisions (for which the restraining
action of the seat belts provides
adequate protection), the air bags do
not deploy.
The side air bags are not a substitute
of the seat belts but rather act in
combination with them. As a
consequence, the seat belts must
always be worn as provided for by
applicable legislation in Europe and in
most non-European countries.
WARNING!
•If the
warning light comes on
while driving (fault signal), stop the
vehicle and contact an Authorized
Maserati Dealer to have the system
checked.
•In the event of a collision with
consequent air bag deployment,contact an Authorized Maserati
Dealer for replacement of the entire
safety system, Occupant Restraint
Controller (ORC), seat belts,
pretensioners, and to have the
vehicle electrical system checked.
•Any and all inspections, repairs and
replacements regarding the air bag
must be performed by an
Authorized Maserati Dealer.
NOTE:
•To scrap the vehicle, please contact
anAuthorized Maserati Dealerin
order to have the air bag system
deactivated.
•If the vehicle is sold, the new owners
must read the above described
instructions for use and warnings on
this “Owner’s Manual” that is an
integral part of the car.
Occupant Restraint Controller
(ORC)
The Occupant Restraint Controller
(ORC) determines if deployment of the
front air bags and/or side air bags in a
frontal or side collision is required.
Based on the impact sensor's signals,
the central electronic ORC deploys the
front air bags, the side air bags andseat belt pretensioners, as required,
depending on the severity and type of
impact.
The ORC monitors the readiness of the
electronic parts of the air bag system
whenever the key in the ignition
switch is in theMAR (ON)position. If
the key is in theSTOP (OFF)position,
in theACCposition, or not active, the
air bag system is not activated and the
air bags will not inflate.
The ORC contains a backup power
supply system that may deploy the air
bags even if the battery has low
power or it becomes disconnected
prior to deployment. When starting
the vehicle, ORC turns on the
air
bag warning light on the instrument
cluster for approximately 4 to 8
seconds for a test.
After the test, the
air bag warning
light will turn off. If the ORC, during
the diagnosis phase detects a
malfunction that could affect the air
bag system, it turns on the
air bag
warning light and the “Airbag failure
go to dealer” message either
momentarily or continuously. The
diagnostics also record the nature of
the malfunction. A beep will sound if
the
air bag warning light
illuminates again after initial startup.
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NOTE:
For additional information, refer to
www.seatcheck.org or call
1–866–SEATCHECK. Canadian residents
should refer to Transport Canada’s
website for additional information:
http://www.tc.gc.ca/roadsafety/
safedrivers/childsafety/index.htm
WARNING!
•Improper installation can lead to
failure of an infant or child restraint.
It could come loose in a collision. The
child could be badly injured or killed.
Follow the restraint manufacturer’s
directions exactly when installing an
infant or child restraint.
•A rearward-facing child restraint
should only be used in a rear seat. A
rearward-facing child restraint in the
front seat may be struck by a
deploying passenger air bag, which
may cause severe or fatal injury to
the infant.
Here are Some Tips on Getting
the Most Out of Your Child
Restraint
• Before buying any restraint system,
make sure that it has a labelcertifying that it meets all applicable
Safety Standards. Maserati also
recommends that you make sure that
you can install the child restraint in
the vehicle where you will use it
before you buy it.
• The restraint system must be
appropriate for your child’s weight
and height.
• Check the label on the restraint
system for weight and height limits.
• Carefully follow the instructions that
come with the restraint system.
• If installed improperly, it may not
work when needed.
• Fit the child into the seat according
to the child restraint manufacturer’s
directions.
WARNING!
When your child restraint system is
not in use, secure it in the vehicle with
the seat belt or remove it from the
vehicle. Do not leave it loose in the
vehicle. In a sudden stop or accident, it
could strike the occupants or
seatbacks and cause serious personal
injury.
Installing Child Restraint
Systems using the Vehicle Seat
Belt equipped with ALR
All the passenger seat belts are
equipped with an Automatic Locking
Retractor (ALR) to secure child
protection through a Child Restraint
System (CRS). These types of seat belts
are designed to keep the lap portion
of the seat belt tight around the child
restraint seat avoiding to use a locking
clip.
The ALR will make a ratcheting noise if
the entire belt is pulled out of the
retractor in order to enable the belt to
retract subsequently. For additional
information on ALR, see “Using Seat
Belt in Automatic Locking Retractor
(ALR) Mode” in “Occupants Restraint
Systems” in this section.
To install a Child Restraint System with
ALR, pull enough of the belt out of the
retractor leading it through the belt
path of the protection device. Slide the
latch into the buckle until it clicks,
then remove the entire safety belt
from the retractor in order to
rewound. While rewinding a click will
indicate the safety belt is now in
Automatic Locking mode.
Exert then a traction on the exceeded
lap section of the belt in order to
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WARNING!
The wet performance (aquaplaning
resistance) will decrease
proportionally to the thickness of the
tread.
Tires Durability
The service life of a tire depends on
various factors including, but not
limited to:
• driving style;
• tire pressure;
• distance driven.
WARNING!
Tires and the spare tire (if equipped)
should be replaced after six years,
regardless of the remaining tread.
Failure to follow this warning could
result in tire failure.
Replacement Tires
NOTE:
In order to maintain high performance
and safety level under all driving
conditions, Maserati strongly
recommends to use tires equivalent to
the originals in size, quality and
performance when replacement is
needed.
For the size designation of your tire
see the label on the driver's side rear
door pillar or see table “Wheels” in
section “Features and Specifications”.
The “Load Index” and “Speed Symbol”
for your tire will be found on the
original equipment tire sidewall.
It is recommended to replace the two
front tires or two rear tires as a pair.
Replacing just one tire can seriously
affect your vehicle’s handling.
If you ever replace a wheel assembly,
make sure that the wheel’s
specifications (valve, TPMS sensor and
tire) match those of the original
wheels. Failure to use equivalent
replacement tires may adversely affect
the safety, handling, and ride of your
vehicle.
YourAuthorized Maserati Dealeris
available to provide suggestions as tothe types of tires most suited to the
use foreseen by the Customer.
WARNING!
•Do not use a tire, wheel size or
rating other than that specified for
your vehicle. Some combinations of
unapproved tires and wheels may
change suspension dimensions and
performance characteristics,
resulting in altered steering,
handling, and braking operations of
the vehicle. This can cause
unpredictable handling and stress to
steering and suspension
components. Use only the tire and
wheel sizes with load ratings
appointed 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.
•Always check the maximum speed
rating on the tire sidewall on any
tire on the vehicle.
•Never exceed the maximum speed
rating of the tires. Risk of accident
and serious personal injury due to
excessive speed.
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•Failure to equip your vehicle with
tires having adequate speed
capability can result in tire failure.
CAUTION!
Replacing original tires with tires of a
different size may result in false
speedometer and odometer readings.
Winter Tires
These tires are specially designed for
driving on snow and ice and are fitted
to replace the ones supplied with the
vehicle. Winter or all-season tires can
be identified by the M+S (Mud &
Snow) or 3PMSF (3 Peaks Mountain
Snow Flake) designation on the tire
sidewall.
Before mounting winter tires, contact
anAuthorized Maserati Dealerto
receive the technical information
necessary to advise you on wheel and
tire compatibility.
As to the type of tires to use, inflation
pressures and winter tires
specifications, carefully follow the
indications as reported in the
“Technical Data” and “Tire Inflation
Pressure” chapters in section “Features
and Specifications”.
WARNING!
The standard tires profile and rubber
mixture are optimized for wet and dry
driving conditions. Standard tires may
not prove favorable for snow
conditions.
NOTE:
Snow tires should have the same load
capacity as original equipment tires
and should be mounted on all four
wheels.
Snow Chains
Maserati approved traction devices (or
snow chains) may be used to improve
traction on compacted snow in heavy
snow conditions.
The use of snow chains is specified by
local regulations of each country.
Use snow chains of reduced
dimensions, with a maximum
projection of 0.35 in (9 mm) beyond
the tire tread.
Maserati recommended to use snow
chains KONIG, type “Supermagic”.
The snow chains may be fitted only on
rear wheel tires.
Please, contact your Service for further
information.Check the snow chain tension after
driving for a distance of about 55 yd
(50 m) with the chains fitted.
With the snow chains fitted, it is
advisable to deactivate the ESC system
(see chapter “Drive Mode” in this
section).
CAUTION!
• The use of non-recommended snow
chains may damage the vehicle.
• Broken chains can cause serious
damage. Stop the vehicle
immediately if noise occurs that
could indicate chain breakage.
Remove the damaged parts of the
chain before further use.
• Do not exceed 30 mph (50 km/h).
• Drive cautiously and avoid severe
turns and large bumps, especially
with a loaded vehicle.
• Avoid holes in the road, do not drive
over steps or sidewalks and do not
drive on long stretches without
snow. This will prevent damage to
the vehicle and the roadbed.
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that prevent the TPMS from
functioning properly. Always check the
TPMS malfunction telltale after
replacing one or more tires or wheels
on your vehicle to ensure that the
replacement or alternate tires and
wheels allow the TPMS to continue to
function properly.
General Information
The Tire Pressure Monitoring System
(TPMS) will warn the driver of a low
tire pressure according to the vehicle
recommended cold pressure indicated
on the table “Tire Inflation Pressure”
in section “Features and
Specifications” and on the label
applied on the driver's side at the base
of the rear door pillar.
The cold tire inflation pressure must
not exceed the maximum inflation
pressure molded into the tire sidewall.
Check “Tires – General Information” in
section “Driving” for information on
how to properly inflate the tires.
The tire pressure will also increase as
the vehicle is driven - this is normal
and there is no adjustment required
when this occurs.
The TPMS will warn the driver of a low
tire pressure if the tire pressure falls
below the low-pressure warning limit
for any reason, including lowtemperature effects and natural
pressure loss of the tire.
The TPMS will continue to warn the
driver of low tire pressure as long as
the condition persists and will not turn
off until the tire pressure is equal or
above the recommended cold
inflation pressure.
The TPMS monitors the tire pressure
by means of special sensors fitted
inside the wheel rims, in position with
the inflation valve.
These sensors transmit a signal that is
detected by the antenna integrated in
the ECU.
The ECU processes this information
and, via the CAN line, transmits a
series of tire pressure data and system
errors, if any, to the instrument cluster.
The display may show the information
received by means of specific screen
pages, which can be recalled by
pressing briefly the "MODE" button
(see "TFT Display: Controls" in chapter
"Instrument Cluster" of the section
Dashboard Instruments and
Controls").
WARNING!
The TPMS warns the driver that the
tire pressure has decreased. This
warning does not exempt the driver
from periodically checking the tires
and from complying with the
prescribed tire pressure levels.
CAUTION!
• The TPMS has been optimized for
the original equipment tires and
wheels. TPMS pressures and warning
have been established for the tire
size equipped on your vehicle.
Undesirable system operation or
sensor damage may occur when
using replacement equipment that is
not of the same size, type, and/or
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asphalt is significantly reduced. This
means that braking distances increase
considerably and road grip decreases.
Some advices for driving in the rain
are listed below.
• Reduce your speed and keep a
greater safety distance from the
vehicles in front of you. High speed
may result in a loss of vehicle
control.
• 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
aquaplaning and may cause partial
or complete loss of vehicle control
and stopping ability. To reduce this
possibility: slow down if the road has
standing water or puddles.
• Heavy rain substantially reduces
visibility. In these circumstances, even
during the day, turn on the low
beams, to be more visible to other
drivers.
• Set the air conditioning and heating
system controls on the defogging
function, in order to avoid any
visibility problem.
• Periodically check the conditions of
the windshield wiper blades.• In low grip conditions use “ICE”
drive mode (see chapters “Drive
Mode” in this section).
Driving in Fog
If the fog is dense, avoid traveling if
possible.
When driving in mist, blanket fog or
when there is the possibility of banks
of fog, please consider some advices
listed below.
• Keep a moderate speed.
• Even in daytime, turn on the low
beams and rear fog lights. Do not
use the high beams.
• Remember that fog creates
dampness on the asphalt and thus
any type of maneuver is more
difficult and braking distances are
extended.
• Keep a safe distance from the
vehicle in front of you.
• Avoid sudden changes in speed as
much as possible.
• Whenever possible, avoid
overtaking.
• If you are forced to stop the vehicle
(breakdowns, impossibility of
proceeding due to poor visibility,
etc.), first of all, try to stop off of the
travel lane. Then turn on the hazardwarning flashers and, if possible, the
low beams.
• Sound the horn rhythmically if you
hear another vehicle approaching.
• When you get out of the vehicle, put
on the high-visibility vest (if
equipped).
CAUTION!
Be aware that rear fog lights can
bother the drivers following your
vehicle: when visibility is back to
normal, turn off these lights.
Driving in the Mountains
Mountain roads usually have many
narrow turns and curves, tunnels and
steep uphill or downhill slopes: please
consider some advices listed below.
• Drive at a moderate speed, avoid
“cutting” corners.
• When driving inside a tunnel in
daylight turn on the low beams in
advance; avoid high beams and be
aware of the rapid brightness
change. Avoid abrupt maneuvers
that could be dangerous for the
following vehicle.
• Never coast downhill with the
engine off or in neutral, and never
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“Driving”). The thinner is the tread,
the greater is the risk of skidding.
•Drive carefully on wet roads to
decrease the risk of aquaplaning.
Winter Tires
These tires are specially designed for
driving on snow and ice and are fitted
to replace the ones supplied with the
vehicle.
The features of these tires are
significantly reduced in winter when
tread depth is less than 0.157 in (4
mm). In this case, they should be
replaced.
The specific features of the winter
tires lead to lower performance under
normal environmental conditions or
on long highway trips, compared to
the standard tires.
Therefore, their use should be limited
to the situations and performance for
which they have been type-approved.
TheAuthorized Maserati Dealercan
provide all necessary information
about fitting winter tires on the
vehicle.NOTE:
•We recommend fitting winter tires
on the vehicle at temperatures 45 °F
(7 °C) since the driving performance
of summer tires is reduced at low
temperatures. Summer tires may be
permanently damaged at extremely
low temperatures.
•Comply with all state and local laws
governing snow tire and tread depth
requirements.
Wheel Rims Maintenance
All wheel trims should be cleaned
regularly with a mild soap and water.
To remove heavy soil and/or excessive
brake dust, use a nonabrasive,
non-acidic cleaner.
Do not use scouring pads, steel wool,
a bristle brush, or metal polishes.
Do not use oven cleaner that may
affect and damage the brake calipers.
Avoid automatic car washes that use
acidic solutions or harsh brushes that
may damage the wheel rim protective
finish.
Bodywork Maintenance
and Care
Protection from Atmospheric
Agents
The main causes of corrosion are:
• atmospheric pollution;
• salinity and humidity in the
atmosphere (marine areas or a damp
climate);
• seasonal environmental conditions;
• salt scattered on the roadbed to
melt ice and snow.
The abrasive action of wind-carried
atmospheric dust and sand, mud and
stones should not be underestimated.
On this vehicle, Maserati has adopted
the best technological solutions to
protect the bodywork from corrosion.
The main measures are:
• paint products and systems that give
the vehicle particular resistance to
corrosion and abrasion;
• use of galvanized (or pre-treated)
metal sheets which are highly
resistant to corrosion in the most
exposed parts;
• spraying of the underbody, engine
compartment, insides of wheel
housings, and other structures with
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Brakes
Self-ventilating disc brakes on the four
wheels.
• Front disc diameter: 14.1 in (360
mm).
• Rear disc diameter: 13 in (330 mm).
• 6-piston front brake caliper
(Dual-cast technology).
• 4-piston rear brake caliper.
The Electric Parking Brake (EPB) acts
on the rear wheels.
Transmission
Electro-hydraulically controlled
automatic transmission with 6 gears
(plus reverse), torque converter,
lock-up clutch and anti-slip function.
TRANSAXLE-type transmission.
Traction system equipped with rear
self-locking differential.
Suspension
Front and rear articulated
quadrilateral suspensions.
Skyhook adjustable damping
suspension (optional on MC version)
that allows the driver to choose two
settings for the shock absorbers,
depending on the road surface
conditions, speed and comfort.
Steering
Hydraulic speed-sensitive steering with
cooling exchanger system.
Steering diameter = 11.7 yd (10,7 m).
No. of steering wheel turns = 1.5 (to
the left and right).
Wheels
NOTE:
In order to maintain high performance
and safety level, Maserati
recommends to use tires equivalent to
the original size.
WARNING!
•The maximum speed reachable with
the tires (including winter tires) is
indicated by the tire manufacturer.
Always comply with the regulations
in force in the Country you are
driving in.
•Never exceed the maximum speed
indicated for the tires (including
winter tires): failure to respect the
max. speed may damage these tires.
Danger: risk of accident!
CAUTION!
• While respecting the specified sizes,
for the safe operation of the vehicle
it is also essential that it is equipped
with the same brand and type of
tires on all wheels.
• Do not use an inner tube with
Tubeless tires.
Standard Wheel Dimension
Light alloy rims 20” x 8.5J
(front)
20” x 10.5J
(rear)
- Front tires 245/35 ZR 20
- Rear tires 285/35 ZR 20
- Front winter tires 245/35 ZR 20
- Rear winter tires 285/35 ZR 20
Light alloy spare rim
(optional)18”x6J
- Spare tire 175/55 R 18
Performance
NOTE:
•The specifications described can
change without prior modification.
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Features and Specifications
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