2020 MASERATI GRANTURISMO Owners Manual

California to cause cancer and birth
defects or other reproductive harm. To
minimize exposure, avoid breathing
exhaust, do not idle the engine except
as necessary, service your vehicle in a
well-ventilated area and wear gloves
or wash your hands frequently when
servicing your vehicle. For more
information go to:
www.P65Warnings.ca.gov/passenger-
vehicle
WARNING!
•Use only refrigerants and
compressor lubricants approved by
the manufacturer for your air
conditioning system. Some
refrigerants are flammable and can
explode, causing injuries. Other
unapproved refrigerants or
lubricants can cause the system to
fail, requiring costly repairs.
•The air conditioning system contains
refrigerant under high pressure. To
avoid risk of personal injury or
damage to the system, adding
refrigerant or any repair requiring
lines to be disconnected should be
done by an experienced technician.
Periodically remove any leaves and
insects that may build up and obstruct
the inlet of external air in the air
conditioning system through the grille
present underneath the rear part of
the hood.
To access the grille, lift the hood as
described in “Open and Close the
Hood” in section “Before Starting”.
A/C Air Filter Replacement
This filter performs mechanic/
electrostatic air filtering, provided
that windows and doors are perfectly
closed.
Have your filter replaced at least once
a year at anAuthorized Maserati
Dealer, preferably at the beginning of
the summer period.
If the vehicle is mainly used in the city
traffic, on highways or dusty roads, we
recommend that you replace the
filters more frequently than prescribed
in the "Scheduled Service Plan" of this
section.
CAUTION!
Failure to replace the filter may
considerably reduce the air
conditioning and heating system
efficiency.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know to the State of
California to cause cancer and birth
defects or other reproductive harm. To
minimize exposure, avoid breathing
exhaust, do not idle the engine except
as necessary, service your vehicle in a
well-ventilated area and wear gloves
or wash your hands frequently when
servicing your vehicle. For more
information go to:
www.P65Warnings.ca.gov/passenger-
vehicle
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Wheels Maintenance
Tires Maintenance
CAUTION!
To obtain the best performances and
the longest mileage from the tires,
take the following precautions during
the first 310 mi (500 km):
• do not drive at the vehicle’s
maximum speed;
• drive at low speed on curves;
• avoid sudden steering;
• avoid sudden braking;
• avoid sudden acceleration;
• do not drive at high speeds for too
long.
The tires inflation pressure must
correspond to the prescribed values
(see the chapter “Tire Inflation
Pressure” in section “Features and
Specifications”) and should be checked
only when the tires have cooled down.
In fact, the pressure increases as the
tire temperature progressively
increases.
Never reduce the pressure if tires are
hot (see “Tires – General Information”
chapter in section “Driving”).Insufficient tire inflating pressure can
cause tire overheating and possible
internal damage, which may even lead
to the tire destruction.
CAUTION!
After inspecting or adjusting the tire
pressure, always reinstall the valve
stem cap. This will prevent moisture
and dirt from entering the valve stem,
which could damage it.
Impacts with curbs, holes, and
obstacles in the road, and prolonged
trips on rough roads can cause tire
damage which may not be visible to
the naked eye.
Check your tires regularly for any signs
of damage (e.g. scratches, cuts, cracks,
bulges, etc.). If sharp objects penetrate
the tires, they can cause structural
damage which is only visible when the
tire is removed.
In any case, any possible damage must
be inspected by an experienced tire
fitter, as it may seriously reduce the
tire life.
Remember that tires deteriorate with
time, even if used little or not at all.
Cracks in the tire tread and sides,
alongside possible bulging, are a sign
of deterioration.
WARNING!
•Check the inflating pressure of the
tires when cold, at least every two
weeks and before long trips.
•Have the old tires inspected by an
experienced technician, to make sure
they can still be used safely. If the
same tire has been on your vehicle
for 4 or 5 years, have it inspected
anyway by an experienced
technician.
•Never fit tires of uncertain origin.
•“Directional” tires have an arrow on
their side showing the rolling
direction. To keep the best
performance when replacing a tire,
make sure that the rolling direction
corresponds to the one shown by
the arrow.
•During the tire life, the rolling
direction used for the first fitting
shall always be observed, also in
case of “nondirectional” tires.
•Check the depth of the tire tread at
regular intervals. The minimum
allowed value is 0.06 in (1,6 mm) at
that point the wear indicators on the
tire will be visible (see “Tires –
General Information” in section
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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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wax products having high protective
power;
• spraying of plastic materials, with a
protective function, in the most
exposed points: underneath the
doors, inside part of the mud guards,
edges, etc.;
• use of ventilated box sections, coated
with protective wax products, to
avoid condensation and trapped
water which could encourage the
formation of internal rust.
Useful Advice to Keep the
Bodywork in Good Condition
Paint
The paintwork does not only have an
aesthetic function but also protects the
underlying metal sheets. In the event
of abrasions or deep scratches, we
recommend to have the necessary
touch-ups made immediately, to avoid
any rust formation. Touch-ups do not
feature particular difficulties, even on
metallic finishes.
For all paint touch-ups, use only
original products indicated on the
plate applied inside the hood.Normal paint maintenance consists in
washing, the frequency of which
depends on the conditions of use and
of the environment. For example, if
driving the vehicle in areas where
there is high atmospheric pollution or
the roads are spread with anti-freeze
salt, it is advisable to wash the vehicle
more frequently.
ENVIRONMENTAL!
Detergents pollute water. Therefore
the vehicle should be washed in areas
equipped for the collection and
purification of the fluids used for
washing.NOTE:
The use of alcohol-based products for
cleaning the metal plates in the engine
compartment and/or the trunk may
deteriorate the painted surface. It is
recommended to use water-based
products and neutral surfactants.
Car Wash
For correct washing:
• wet the bodywork with a low
pressure water jet;
• pass a sponge with a light detergent
solution over the bodywork,
frequently rinsing the sponge;
• rinse well with water and dry with an
air jet or chamois leather.
When drying, take particular care with
the parts that are less visible, such as
the door and lid bays, headlight edges,
in which water can be trapped more
easily.
You are recommended not to take the
vehicle immediately into an enclosed
environment, but leave it in the open
air so as to allow the water to
evaporate.
Do not wash the vehicle after it has
been left in the sun or when the hood
is hot: the paint gloss could be
affected.
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External plastic parts must be cleaned
with the same procedure followed for
the normal washing of the bodywork.
Avoid, as far as possible, parking the
vehicle under trees; the resinous
substances that very often drop from
the trees give the paint a dull
appearance and increase the
possibility of originating corrosive
processes.
It is important that the drain holes in
the lower sides of the doors, rocker
panels, and trunk bottom be kept
clear and open.
CAUTION!
• Bird droppings must be washed off
immediately and thoroughly, since
their acidity is particularly corrosive.
• To provide better protection for the
paint, polish the vehicle at intervals
with a suitable product leaving a
protective film on the paint.
• If the vehicle is washed using
high-pressure water jets or cleaners,
it is important that the nozzle of the
jet be kept at a distance of at least
16 in (40 cm) from the bodywork to
avoid damaging it.
• If you are washing the vehicle with
roller brushes, you must protect theedges of the rear, lateral brand
symbol with tape, to prevent it from
being detached by the revolving
brushes.
Glass Surfaces
All glass surfaces should be cleaned on
a regular basis with any commercial
household-type glass cleaner.
Never use an abrasive type cleaner.
Use caution when cleaning the inside
rear window equipped with electric
defrosters. Do not use scrapers or
other sharp instrument that may
scratch the electric elements.
When cleaning the rearview mirror,
spray cleaner on the towel or rag that
you are using. Do not spray cleaner
directly on the mirror.
Labels can be peeled off after soaking
with warm water.
Keep all objects a safe distance from
the window.
Cleaning Headlights
Your vehicle has plastic headlights that
are lighter and less susceptible to
stone breakage than glass headlights.
Plastic is not as scratch resistant as
glass and therefore different lens
cleaning procedures must be followed.
To minimize the possibility of
scratching the lenses and reducinglight output, avoid wiping with a dry
cloth. To remove road dirt, wash with
a mild soap solution followed by
rinsing.
Do not use abrasive cleaning
components, solvents, steel wool or
other aggressive material to clean the
lenses.
Moldings and Aluminum Trims
• For cleaning moldings and aluminum
trims, avoid the use of acidic or
alkaline cleaning agents that can
destroy the protecting surface
treatment.
• After washing aluminum trim with
warm water, apply the cleaning
agent with a clean tissue or a soft
sponge on the surface. Do not use
any other equipment such as
brushes, steel wool, abrasives or any
other equipment for cleaning.
• After cleaning, please rinse the
aluminum trim with a lot of clear
water.
• While cleaning in the car, please
make sure that the moldings and
aluminum trims only get in contact
with soft brushes or textiles.
Engine Compartment
At the end of each winter season,
carefully wash the engine
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compartment, remembering to avoid
directing the jet of water for too long
on the ECUs and other electric parts.
To perform this operation, you must
contact anAuthorized Maserati
Dealer.Interior Maintenance and
Care
Interior trim should be cleaned
starting with a damp cloth. Do not use
harsh cleaners.
The leather upholstery can be best
preserved by regular cleaning with a
damp soft cloth. Small particles of dirt
can act as an abrasive and damage the
leather upholstery and should be
removed promptly with a damp cloth.
Stubborn soils stains can be removed
easily with a soft cloth and
appropriate products. Avoid soaking
the leather upholstery with any liquid.
Please do not use polishes, oils,
cleaning fluids, solvents, detergents, or
ammonia-based cleaners to clean your
leather upholstery.
Application of a leather conditioner is
not required to maintain the original
condition.
Check at regular intervals that there is
no water trapped under the mats (due
to drips off shoes, umbrellas etc.)
which may cause the metal parts to
oxidize.
CAUTION!
Do not use alcohol, petrol or solvents
to clean the instrument cluster'stransparent dome, the MTC+ display,
the analog clock and the leather
upholstery. We recommended the use
of “Car Care” products approved by
Maserati for the maintenance and care
of the interior.
Leather Upholstery Treatment
Have the leather upholstery only
treated, as provided in the Scheduled
Service Plan, by anAuthorized
Maserati Dealerwhich has the
required specific products.
Parts in Premium Quality Wood
Remove any dirt with a buckskin
leather or damp cloth.
NOTE:
TheAuthorized Maserati Dealercan
provide you with any information
about the Maserati approved “Car
Care” products, available in the
“Genuine Accessories” range.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
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258

such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know to the State of
California to cause cancer and birth
defects or other reproductive harm. To
minimize exposure, avoid breathing
exhaust, do not idle the engine except
as necessary, service your vehicle in a
well-ventilated area and wear gloves
or wash your hands frequently when
servicing your vehicle. For more
information go to:
www.P65Warnings.ca.gov/passenger-
vehicleVehicle Stored for Long
Periods
If the vehicle is going to be stored for
over a month, follow the below
precautions:
• Wash and dry the vehicle
thoroughly.
• Store the vehicle in a covered, dry
and, if possible, ventilated area.
• Select P (Park) and turn off the
engine.
• Turn the key in the ignition switch in
STOP (OFF)position.
• Disconnect the battery (refer
“Maintenance-Free Battery” in this
section) or connect a battery charger
(refer to paragraph “Maintaining
Battery Charge” of chapter “Battery
Statement” in this section).
• Check the battery charge status.
During parking, this check must be
carried out every three weeks.
Recharge the battery if the open
circuit voltage is lower than 12.2 V.
• Check that the parking brake is NOT
engaged.
• Do not empty the engine cooling
system.
• Clean and protect the painted parts
applying protective wax.• Clean and protect polished metal
parts with special products available
on the market.
• Talc the windshield wiper blades and
raise them from the windshield.
• Cover the vehicle with a long cloth
in breathable fabric (available from
theAuthorized Maserati Dealer). Do
not use thick plastic sheets, which do
not allow the humidity on the
vehicle surface to evaporate.
• Inflate the tires up to a pressure
which must be 1 bar (14.5 psi) higher
than the normally prescribed one,
and check it at regular intervals.
NOTE:
TheAuthorized Maserati Dealercan
provide you with any information
about the available “Indoor and
Outdoor Car Covers”, available in the
“Genuine Accessories” range.
WARNING!
The tire pressure must be brought
back to the prescribed value before
reusing the vehicle (see “Tire Inflation
Pressure” in section “Features and
Specifications”).
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259

Restarting the Vehicle
Before restarting the vehicle after a
long period of inactivity, we
recommend that you carry out the
following operations.
• Check the tires for pressure and for
any damages, cuts or cracks. If this is
the case, have them replaced.
• Do not dry-rub the external surface
of the vehicle.
• Visually inspect if there are any fluid
leaks (oil, brake and clutch fluid,
engine coolant etc.).
• Have the engine oil and filter
replaced.
• Check the fluid levels in the brake
system, as well as the engine coolant
level.
• Check the air filter and have them
replaced if necessary.
• Reconnect the battery after checking
the charge status (refer to
“Maintenance-Free Battery” in this
section) and perform the initializing
procedure if applicable.
• With the transmission in N (Neutral),
let the engine idle for several
minutes.WARNING!
The engine idle must be performed
outdoors. Exhaust gases contain
carbon monoxide which is strongly
toxic and potentially lethal.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know to the State of
California to cause cancer and birth
defects or other reproductive harm. To
minimize exposure, avoid breathing
exhaust, do not idle the engine except
as necessary, service your vehicle in a
well-ventilated area and wear gloves
or wash your hands frequently when
servicing your vehicle. For more
information go to:
www.P65Warnings.ca.gov/passenger-
vehicle
Battery Statement
Battery Statement Status of
Charge
To avoid problems with ignition and/or
the electrical system in general when
you are driving, the battery charge
status is constantly maintained and
guaranteed by the vehicle's recharge
circuit; the main component of which
is the alternator. This circuit is only
able to supply voltage to the battery
when the vehicle is traveling.
The
warning light on the
instrument cluster (see “Instrument
Cluster” in section “Dashboard
Instruments and Controls”), will
indicate any malfunctions in the
recharge circuit or an insufficient
battery charge status (flashing).
The vehicle is fitted with advanced
electronic systems, such as, for
example, the alarm system and various
electronic control modules, which
consume power even when the key in
the ignition switch is in theSTOP (OFF)
position and the vehicle is not being
used.
Therefore, it is fundamental that the
battery is properly charged to ensure
that the engine starts properly and
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