2020 MASERATI GRANTURISMO CONVERTIBLE service

Bulb Replacement
The signal failure of an external light
(turn signal, low beam and high beam,
license plate light, reverse light, brake
light and rear fog light) is
communicated to the instrument
cluster that displays on the TFT screen
the
oramber warning light
and a text message indicating which
light is faulty.
Front Headlights
The light bulbs of the headlight
clusters are arranged as follows:
1Bi-Xenon low-beam/high-beam
bulb.
2Position light and DRL (*) LED.
3Turn signal light bulb.
4FTP bulb, headlight flashing.
5Side marker bulb.
(*) On vehicles for the Canadian
market DRL are always enabled.
CAUTION!
Due to the complexity of the
operation, for the replacement of the
headlight clusters light bulbs, we
recommend that you contact an
Authorized Maserati Dealer.
WARNING!
The headlamps are a type of high
voltage discharge tube. High voltage
can remain in the circuit even with the
headlamp switch and the ignition
switch off. Because of this, you should
not attempt to replace a headlamp
bulb yourself, but take the vehicle to
an Authorized Maserati Dealer for
service.
Tail-Light Clusters Light Bulbs
The taillight bulbs are arranged as
follows:
1Position light guide LED.
2Stop light LED.
3Turn signal LED.
4Reverse light bulb.
5Rear fog light bulb.
Tail-Light Clusters Bulbs
Replacement
Most of the lamps of the taillight are
LED powered and cannot be replaced
individually. The only exceptions are
the reverse and the rear fog light
bulbs for which you find below the
replacement procedure.
Contact anAuthorized Maserati
Dealerto locate the correct parts and
replace them.
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257

• Refit the lens cover, inserting first the
electrical connector side and then
pressing on the other side.A/C System Maintenance
For the best performance, the air
conditioning system should be checked
and serviced by anAuthorized
Maserati Dealerat the beginning of
the warm season.
This service should include cleaning of
the condenser, check of the drive belt
tension and a performance test.
During the winter, the air conditioning
system should be operated at least
once a month for about 10 minutes.
CAUTION!
Do not use chemical flushes in your air
conditioning system as the chemicals
can damage your air conditioning
components. Such damage is not
covered by the New Vehicle Limited
Warranty.
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 ofCalifornia 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.
Maintenance and Care
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262

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
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”).
Maintenance and Care
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263

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
such as, engine exhaust, carbonmonoxide, 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
Maintenance and Care
7
268

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 andthat all the electrical/electronic systems
in the vehicle work efficiently.
Maintaining Battery Charge
If you perform short daily trips
(approximately 10 miles/16 km), which
correspond to an annual total of 4000
miles/6000 km, or when the vehicle is
not going to be used for one week or
more, Maserati recommends
connecting the vehicle to a battery
charger, to save you the trouble of
having to recharge the battery (see
“Battery Charge Maintainer
Operation” in this chapter).
The battery charge maintainer will
keep the battery charged properly and
at the correct voltage levels required
by the systems and devices in the
vehicle.
Before using the battery charge
maintainer, carefully follow the
instructions provided.
If you do not use a battery charge
maintainer to prevent the battery
from going dead when you are not
going to use the vehicle for long
periods of time, you need to check and
recharge the battery at least once
every three weeks. Make this check if
you perform short daily trips
(approximately 10 mi/16 km) which
correspond to an annual total of 4000
Maintenance and Care
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270

children to play with the battery
charge maintainer.
Protection from Overheating
The supplied battery charge
maintainer features a protection
against overheating.
In case ambient temperature
increases, output power is reduced.
Service
• Battery maintainer does not require
any maintenance.
• Do not disassemble the battery
maintainer.
• The maintainer case can be cleaned
with a soft damp cloth or using mild
detergent.
• Always disconnect the maintainer
from the mains before cleaning it.
Maintenance and Care
7
273

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
Engine Oil Identification
Symbol
This symbol means that the oil
has been certified by the
American Petroleum Institute
(API). Maserati only
recommends API Certified engine oils.
CAUTION!
Do not use chemical flushes in your
engine oil as the chemicals can
damage your engine. Damage caused
by use of non-approved chemicals is
not covered by the new Vehicle
Limited Warranty.
Engine Oil Viscosity (SAE
Grade)
SAE 5W-40 engine oil is recommended
for all operating temperatures.
The engine oil filler cap also shows the
recommended engine oil viscosity for
your engine. For information on
engine oil filler cap location, refer to
chapter “Maintenance Procedures” in
section “Maintenance and Care”.
Lubricants that do not have both the
engine oil certification mark and the
correct SAE viscosity grade number
should not be used.
Fuel Consumption
NOTE:
•The technical data, values and
specifications in this Owner’s Manual
are provided as guidance only. The
vehicle specific data can deviate from
the information provided, for
example, as a result of optional or
special equipment ordered with the
vehicle, vehicle loads, and country
specific measurement methods.
•The specifications described below
can change without prior
notification.
The fuel consumption values shown
(Miles Per Gallon - MPG) are
established using EPA test guidelines.
City:13MPG
Highway:20MPG
Combined:15MPG
CAUTION!
• Actual fuel economy results will vary
for many reasons, including driving
conditions and how you drive and
maintain your vehicle.
• The type of route, traffic and
weather conditions, driving style,
general condition of the vehicle,
Features and Specifications
8
278

Jump Starting Procedure......225
ToolKit..................212
Towing a Disabled Vehicle.....228
Engine
Engine Air Filter Replacement . .245
Engine Coolant Level Check. . . .240
Engine Oil Level Check.......243
Engine Overheating.........214
Engine Start Failure.........159
Engine Turn Off............159
Hood, Open and Close........37
Normal Starting of the Engine . .158
Use of the Engine...........183
EPB (Electric Parking Brake)......174
ESC (Electronic Stability Control) . .177
Filters
A/C Air Filter Replacement.....263
Engine Air Filter Replacement . .245
Fuel
Carbon Monoxide Warning. . . .201
Emergency Fuel Filler Door
Release..................203
Fuel Consumption Data.......278
Fuel Requirements..........199
Fuel System Warnings........201
Gasoline/Oxygenate Blends. . . .200
Materials Added to Fuel......201
MMT in Gasoline...........200
Reformulated Gasoline.......200
Fuses Position and Replacement. . .251
HomeLink..................108Hood, Open and Close..........37
Indicator Lights
Air bag Warning Light........66
Indicator Lights/Warning Lights
TFT Display: Warning/Indicator
Lights...................126
Warning and Indicator Lights on
Analog Instrument..........119
Inertia Switch, Fuel Cut-out......229
Infotainment System..........130
Manual Controls and Devices . .132
Installing a LATCH-Compatible
Child Restraint System.........57
Instrument Cluster............118
Interior Components...........70
Interior Maintenance and Cure . . .268
Interiors Features.............102
Jump Start Procedure.........
.226
Keys
......................22
Level Checks................240
Adding Windshield/Headlight
Washer..................243
Brake Fluid Level Check.......242
Engine Coolant Level Check. . . .240
Engine Oil Level Check.......240
Power Steering Fluid Level
Check...................245
Transmission Oil Check.......245
Lights.....................82Adaptive Bi-Xenon Headlights . . .84
Automatic Headlights.........84
Bulb Replacement..........257
Cargo Light................88
DRL, Daytime Running Lights....83
Front Domelights............87
Hazard Warning Flasher.......88
Headlights................84
High Beams and Flashing......86
Light Switch...............82
Parking Lights..............84
Rear Fog Lights.............85
Turn Signals................86
Twilight Sensor.............85
Loading the Vehicle
Vehicle Load Carrying Capacity . .107
Maintenance
A/C System Maintenance......262
Bodywork Maintenance and
Care....................265
Interior Maintenance and Care . .268
Maintenance Procedures......239
Periodic Maintenance........237
Scheduled Maintenance
Service..................232
Scheduled Service Plan.......234
Wheels Maintenance........263
Maserati Roadside Assistance
Program...................15
MIL (Malfunction Indicator Light). .119
Mirrors
Folding Mirrors.............81
Index
9
287