engine MASERATI GRANTURISMO CONVERTIBLE 2020 Service Manual

Sport Skyhook Suspension
(for versions/markets,
where provided)
The electronic system controlling the
vehicle suspension uses the
sophisticated on board sensors and is
aimed at optimizing vehicle
performance.
The system is capable of constantly
monitoring suspension damping by
means of the actuator fitted on each
shock absorber (Skyhook type). This
way, the shock absorber setting is
suited to the road surface conditions
and vehicle dynamics, thus improving
passenger comfort and road-holding.
By pressing button “SPORT” on the
central console the driver can choose,
even while driving, a normal or
dynamic-type setting for the
suspension, depending on their own
driving style.This way, the system operates with a
shock absorber “softer” setting in
NORMAL drive mode, and a “harder”
setting if SPORT drive mode is selected
(see “Drive Mode” in section
“Driving”).
The strategy used by the system
controlling suspension damping is
aimed at reducing the vertical
oscillations of the vehicle (rolling and
pitching) to a minimum.
The activation of SPORT drive mode
sets the suspension for sports-style
driving and acts on the ASR and
gearbox systems as well, modifying
their setting for dynamic-style driving.
System Components
The system is controlled by an ECU
which manages the solenoid valves on
each shock absorber in response to the
sensor signals, thus adjusting
suspension damping and setting.The sensors which enable the ECU to
calculate the vehicle speed, vertical
and side acceleration, as well as the
instantaneous braking system pressure,
thereby controlling suspension
damping, are the following:
• front left-hand vertical acceleration
sensor;
• front right-hand vertical acceleration
sensor;
• rear vertical acceleration sensor;
• front left-hand wheel acceleration
sensor;
• front right-hand wheel acceleration
sensor;
• lateral acceleration sensor;
• driving speed sensor;
• brake pedal switch.
Self-diagnostics
Whenever the engine is started, the
system performs a self-diagnostic cycle.
If a malfunction is found, the
amber
warning light is displayed
accompanied by the message “Check
suspensions” (see paragraph
"Malfunction Indicators" in this
chapter).
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Calibration Selection
The driver can select, in relation to
road surface conditions, vehicle speed,
driving style and comfort, one of the
two calibration levels provided by the
system: normal or sports-style.
•Normal calibration, active when
SPORT drive mode is disabled
("SPORT" button not pressed), favors
comfort and higher driving stability
with low and average grip
conditions.
•Sport-style calibration, active when
SPORT drive mode is enabled
("SPORT" button pressed) , favors
wheel drive and permits a
dynamic-style driving with optimal
road holding.
Whenever the engine is started, the
system automatically activates
NORMAL drive mode, even if SPORT
drive mode was selected before the
engine was last turned off.
The sport-style calibration can be
selected only with the key in the
ignition switch inMAR (ON)position
and it is enabled by pressing button
"SPORT", even while driving.
When SPORT drive mode is activated,
the word “SPORT” on the instrument
cluster display and the LED on the
button illuminate.WARNING!
SPORT drive mode should not be
activated if the road surface is rough
or slippery.
The electronic suspension control
system works in combination with the
ESC system.
When the suspension is set to normal
calibration, stability is increased under
medium and low grip conditions,
while when it is set to sport-style
calibration, the ESC system optimizes a
sportier driving.
WARNING!
In low- and medium-grip conditions
(e.g., rain, snow, ice, sand, etc.) it is
advisable not to use SPORT drive
mode, even with the ESC system
enabled.
Malfunction Indicators
If one or more electric components in
the system prove to be malfunctioning
while driving, the ECU illuminates the
amber warning light accompanied
by the message “Check suspensions”
on the display. In addition, the ECU
calibrates the shock absorbers to apreset value, thus ensuring a safe
vehicle set up.
Should the malfunction involve one
shock absorber only, this will no
longer be controlled by the ECU and
will therefore remain set as it was
when the fault occurred. It is
therefore possible for one of the four
shock absorbers to work with a fixed
calibration, different from that of the
other ones.
In any case, safe and secure vehicle
driving is always ensured at low
speeds.
CAUTION!
In the event of a malfunction in the
suspension control electronic system,
which will be indicated by the
illumination of the amber warning
light on the display while driving,
keep a moderate speed and have the
vehicle checked as soon as possible by
anAuthorized Maserati Dealer.
If a malfunction occurs while driving,
and this is signaled by the illumination
of the
amber warning light on the
display, it is advisable to stop the
vehicle as soon as possible, turn the
key in the ignition switch toSTOP
(OFF)position and then restart the
engine.
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Warning and Indicator Lights
on Analog Instruments
Low Fuel Indicator on Fuel Gage
The illumination of the red indicator
inside the gage indicates that there
are approx. 4.7 Gallons (18 liters) of
fuel in the tank.
If the pointer positions on "0"
(beginning of scale) and the fuel
reserve indicator flashes, it means that
there is a system malfunction.
In this case, contact anAuthorized
Maserati Dealerto have the system
checked.
Telltales on Speedometer
Following telltales are displayed on
the fuel level gage and speedometer,
and related messages are visible for 10
seconds on the central sector of the
display, unless otherwise indicated.The telltales indicated with (*) are also
displayed on the TFT display (see “TFT
Display” paragraph in this chapter).
Charging System Warning Light
This warning light shows the
status of the electrical
charging system. If the light
stays on or comes on while
driving, turn off some of the vehicle's
non-essential electrical devices or
increase engine speed (if at idle). If
the charging system warning light
remains on, it means that the vehicle
is experiencing a problem with the
charging system. Require IMMEDIATE
service at anAuthorized Maserati
Dealer.
If jump starting is required, refer to
“Jump Start Procedures” in section “In
an Emergency”.Malfunction Indicator Light (*)
The Malfunction Indicator
Light (MIL) is part of an
onboard diagnostic system
that monitors engine and
automatic transmission control
systems.
Under normal conditions, this
indicator light should switch on when
the key in the ignition switch is in
MAR (ON)position and switch off
soon after the engine is started.
This is a sign of the indicator light
working properly. If the indicator
remains lighted up or switches on
while driving, there is a failure in the
fuel supply/ignition and emission
control systems.
The failure could cause high exhaust
emissions, loss of performance, poor
vehicle handling and high
consumption levels.
Under these conditions you can
proceed slowly without forcing the
engine or driving at high speeds.
The indicator light will switch off if
the problem is solved.
The error will be registered by the
system in any case.
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CAUTION!
• When the key on the key in the
ignition switch is in theMAR (ON)
position and if the indicator light
does not switch on or if it switches
on while driving, contact an
Authorized Maserati Dealeras soon
as possible.
• Prolonged driving with the MIL on
could cause damage to the engine
control system. It also could affect
fuel economy and drivability. If the
MIL is flashing, severe catalytic
converter damage and power loss
will soon occur. Immediate service is
required.
Parking Lights Indicator
With the key removed from
the ignition switch, it indicates
that the parking lights are on.
Transmission Failure Warning Light (*)
Depending on the message
displayed it signals:
• a transmission failure. If the
failure permits, slowly drive
to the nearestAuthorized
Maserati Dealer;• a too high temperature of the
transmission oil. In this case, slow
down until the temperature goes
down to the normal values for use
(the warning light goes off).
For further information see chapter
“Automatic Transmission” in section
“Driving”.
CAUTION!
Continuous driving with the
transmission temperature warning
light illuminated will eventually cause
severe transmission damage or failure.
WARNING!
If the transmission temperature
warning light is illuminated and you
continue operating the vehicle, in
some circumstances you could cause
the fluid to boil over, come in contact
with hot engine or exhaust
components and cause a fire.
High Beam Indicator
This indicator lights up when
the high beams are switched
on or when blinking.Low Oil Pressure Warning Light (*)
Under normal conditions, the
warning light illuminates
when the key in the ignition
switch is turned toMAR (ON)
position and goes off as soon as the
engine is started.
If the warning light stays or turns on
while driving, the engine oil pressure is
too low. The warning light is combined
with a displayed message. In this case,
turn the engine off immediately and
carry out the necessary checks.
Do not operate the vehicle until the
problem has been solved. This light
does not indicate the oil level. The
engine oil level must be checked with
the dipstick located under the hood
(see “Maintenance Procedures” in
section “Maintenance and Care”).
If the problem persists, contact an
Authorized Maserati Dealer.
Headlight On Indicator
This indicator will illuminate
when the position lights or
headlights are turned on.
For further details, see
“Lights” in section “Understanding the
Vehicle”.
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Left Turn Signal Indicator Light
The indicator lights up when
the left turn signals or the
hazard flashers are turned on.
The indicator light will flash at
the same frequency of the turn signals
and is controlled by the left
multifunction lever.
If the vehicle electronics sense that the
vehicle drives for more than 1 mile
(1.6 km) with either turn signal on, a
continuous sound will alert the driver
to turn the signal off.
If the indicator flashes at a rapid rate,
check for a defective exterior light
bulb.
Rear Fog Light Indicator
This indicator lights up when
the rear fog lights are
switched on.
Tire Pressure Monitoring Light (*)
This indicator light is
connected to the Tire Pressure
Monitoring System (TPMS).
Under normal conditions, the
warning light should illuminate when
the key in the ignition switch is in
MAR (ON)position and should go off
as soon as the engine is started.
If the warning light remains lit or
illuminates while driving, the pressureof one or more tires is too low: the
related message will be displayed.
If the warning light flashes prior to
remain on, it indicates that the system
is temporarily unavailable.
This warning light illuminates even
when you calibrate the TPMS and
remains lit until the system is
calibrated.
Please refer to “Tire Pressure
Monitoring System (TPMS)” in section
“Driving” for further information.
Telltales on Tachometer
Following telltales are displayed on
the tachometer and related messages
are visible for 10 seconds on the
central sector of the display, unless
otherwise indicated (see “TFT Display”
in this chapter).Anti-Lock Brake Light (*)
This light, and its related
message, indicate possible
malfunctions of the Anti-Lock
Brake System (ABS).
The light will turn on when the key in
the ignition switch is inMAR (ON)
position and may stay on for 4
seconds. If the ABS light remains lit or
turns on while driving, the Anti-Lock
portion of the brake system is not
functioning and requires service.
However, the conventional brake
system will continue to operate
normally if the
indicator light is
switched off. If the ABS light turns on
while driving, or if it does not switch
on when the key in the ignition switch
is inMAR (ON)position, please visit as
soon as possible anAuthorized
Maserati Dealerin order to restore the
Anti-Lock brakes functions.
Seat Belt Reminder Light (*)
When the key in the ignition
switch is inMAR (ON)
position, the seat belt
reminder light will light up for
a few seconds as a bulb check.
During the bulb check, you will hear
an acoustic signal if one or both front
seat belts are unbuckled.
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After the bulb check or while driving,
if driver or front passenger seat belt is
unbuckled, together with the acoustic
signal the seat belt reminder light will
light up.
WARNING!
Maserati urges you to use the seat
belts correctly fastened and adjusted
at all times. Correct use of the seat
belts can help reduce the risk of
serious injury in the event of an
accident. Do not pass seat belts over
sharp edges: they could tear. Do not
pin anything to the seat belts. This
could reduce their initial strength and
cause them to tear in the event of a
crash.
Refer to “Occupants Restraint
Systems” in section “Before Starting”
for further information.
Low Brake Fluid Warning Light (*)
This warning light illuminates
when the brake fluid level
drops below the minimum
level. If accompanied by a
specific message, it indicates an EBD
system failure.
In this case, do not apply the brakes
suddenly, since this may cause an earlylocking of the rear wheels. Driving
extremely carefully, immediately go to
the nearestAuthorized Maserati
Dealerto have the system checked.
WARNING!
If the warning light illuminates while
driving, immediately check the brake
fluid level. If the fluid is below the
minimum level, there may be a leak in
the circuit. Contact an Authorized
Maserati Dealer before driving further.
Air bag/Pretensioner Warning Light (*)
This warning light will
illuminate for a few seconds
for a bulb check when the key
in the ignition switch is in
MAR (ON)position. If the light does
not illuminate while starting the
engine, stays lit, or switches on while
driving, have the system checked at an
Authorized Maserati Dealeras soon as
possible.
In the latter case, the message will
remain displayed.
See “Supplemental Restraint System
(SRS) – Air bags” in section “Before
Starting” for further information.
WARNING!
If the indicator light remains ON or if
it does not illuminate or illuminates
while driving, contact an Authorized
Maserati Dealer as soon as possible.
Electronic Stability Control (ESC)
Malfunction Indicator Light (*)
This indicator light on the
instrument cluster will display
when the key in the ignition
switch is inMAR (ON)position.
It should switch off by starting the
engine.
If the light stays on with the engine
running, there is a malfunction in the
ESC system.
If the light still stays on after several
ignition cycles, and the vehicle has
been driven for several kilometers at
more than 30 mph (48 km/h) speed,
visit anAuthorized Maserati Dealeras
soon as possible to have the problem
diagnosed and restored.
NOTE:
Each time the key in the ignition
switch is turned inMAR (ON)position:
•The ESC off indicator light and the
ESC malfunction indicator light
illuminate temporarily.
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•The ESC system will be on, even if it
was turned off previously. The ESC
system will make buzzing or clicking
sounds when active. This is normal;
the sounds will stop when ESC
becomes inactive by solving the
problem that caused the ESC
activation.
Air Bag Malfunction Warning Light (*)
The warning light flashes to
indicate a malfunction of the
warning light.
WARNING!
•Turning the key in the ignition
switch to MAR (ON) position, the air
bag malfunction warning light
illuminates but should go off after a
few seconds with the engine
running.
•If the air bag malfunction warning
light remains on or stays on or if it
does not illuminate or if it
illuminates while driving, contact
your Authorized Maserati Dealer as
soon as possible.
Right Turn Signal Indicator
This indicator lights up when
the right turn signals or the
hazard flashers are switched
on.
The indicator will flash at the same
frequency of the turn signals and is
controlled by the left multifunction
lever.
If the vehicle electronics sense that the
vehicle drives for more than 1 mile
(1.6 km) with either turn signal on, a
continuous sound will advise the
driver to turn the signal off.
If the indicator flashes at a fast rate,
check for a defective outside indicator
light bulb.
Maserati CODE Warning Light (*)
With the key in the ignition
switch inMAR (ON)position,
the amber warning light in
the instrument cluster and on
the display illuminates when the
system detects the following faults:
• alarm system not available;
• electronic key not detected;
• have the vehicle protection system
checked.
Or when the user is informed of the
following events:
• vehicle break-in detected;• electronic key not recognized.
Electronic Stability Control (ESC) OFF
Indicator Light
This indicator notifies that the
Electronic Stability Control
(ESC) is disabled; the linked
message will be displayed.
Parking Brake Engaged Indicator
This indicator light illuminates
when the parking brake is
applied.
Brake Pads Worn Warining Light (*)
This warning light illuminates
on the instrument cluster
when the brake pads have
reached their wear limit.
Please contact anAuthorized Maserati
Dealer.
High Coolant Temperature Warning
Light
The thermometer in the instrument
cluster indicates the temperature of
the coolant. If the needle indicates
high temperatures and at the same
time the warning light comes on, stop
the vehicle immediately and have the
cooling system checked by an
Authorized Maserati Dealer.
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NOTE:
The TPMS calibration operation is
possible even with the engine running
but the vehicle must be stationary
(0 mph-km/h).
See "Tire Pressure Monitoring System
(TPMS)" in section "Driving" to
calibrate the system.
Comfort Screen Page
Repeatedly press the "MODE" button
to display the screen page showing the
operating status of the heating system
for each seat.
The user can view the following
information:
• seat indication;
• heating level.This screen page remains displayed for
10 seconds.
RPM Indicator Page (MC version only)
The “RPM INDICATOR” screen page
allows the user to display, within the
standard screen page, also a virtual
RPM gage.
The screen page can be recalled by
pressing the "MODE" button
repeatedly. The options available are
the following:
• ON (display enabled);
• OFF (display disabled).
The chosen option is activated if the
user presses the "MODE" button to
confirm it.If the audio or navigation data
repetition option is active on the
MTC+, when the user sets the virtual
RPM indicator this setting shall be
ignored until the repetition function is
disabled (see "NTC+ Settings" in this
section).
TFT Display: Warning/Indicator
Lights
Besides some warning/indicator lights
shown inside the analog instruments
(indicated by (*) in the "Warning and
Indicator Lights on Analog
Instruments" paragraph of this
chapter) the TFT display shows in the
dedicated area other warning/
indicator lights with the relevant
messages for 10 seconds, unless
otherwise specified.
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Low Engine Oil Level Warning Light
This warning light and the
related displayed message,
indicate a low engine oil level.
The engine oil level must be
checked with the dipstick fitted under
the hood (see “Maintenance
Procedures” in section “Maintenance
and Care”).
Power Steering Failure Warning Light
This warning light, and the
related message, illuminate
when the power steering is
not operating and needs
service.
Drive slowly by to the nearest
Authorized Maserati Dealer, being
extremely careful as steering effort
may increase.
Catalyst Over Temperature Warning
Light
This warning light, and the
related message, light up if
the engine runs irregularly
with consequent high
temperature in the exhaust system.
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-
vehicleWARNING!
•If the warning light is accompanied
by the message “High catalysts
temperature slow down”: the
temperature of the catalytic
converters is too high. The driver
must slow down immediately until
the warning light turns off.
•If the message “Excessive catalysts
temperature do not drive on”
appears after decelerating: the
temperature in the catalytic
converters has reached a dangerous
level and the catalytic converters
could be damaged. Drive slowly to
the nearest Authorized Maserati
Dealer.
•Maserati declines all responsibility
for whatever damage deriving from
non compliance with the above
mentioned warnings.
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Engine Temperature Warning Light
This warning light coupled
with the light on the coolant
thermometer notifies when
the engine is overheated. If
the temperature reaches critical levels
this warning light will illuminate in red
color combined with the related
message on display.
If the indicator light switches on while
driving, safely pull over and stop the
vehicle. If the A/C system is on, turn it
off. Also, shift the transmission into N
(Neutral) and idle the vehicle. If the
temperature does not return to
normal, immediately turn the engine
off and contact anAuthorized
Maserati Dealer.
Check “Engine Overheating” in section
“In an Emergency” for more
information.
Doors and Lids Open Warning Light
This warning light indicates
that the doors or lids are open
or not properly closed. The
instrument cluster display also
shows an image of the vehicle with the
part not closed highlighted in red and
the related message.
WARNING!
Before starting off, close any doors
and lids that are open or not properly
closed.
Soft Top Failure Warning Light
This warning light illuminates
if the hydraulic and electric
soft top movement systems
fail.
Fuel Cutout Enabled Warning Light
This warning light illuminates
when a collision activates the
inertia switch, thus cutting off
the fuel supply.
WARNING!
After a collision, if you smell fuel or
note leakages from the fuel system,
do not reactivate the switch in order
to prevent the risk of fire.
Windshield and Headlights Washer
Low Fluid Indicator
This indicator will illuminate
for 10 seconds to indicate a
low level of the windshield
and headlights washer fluid. A
related message will be displayed.See “Maintenance Procedures” in
section “Maintenance and Care” for
fluid filling.
Lighting System Failure Warning Light
This warning light illuminates
in the case of a system failure
or burning-out of the position,
turn signal, rear fog and
license plate light bulbs.
See "Bulb Replacement" in section
"Maintenance and Care" for further
details.
Stop Light Failure Warning Light
This warning light illuminates
in the case of a system failure
or burning-out of the stop
light bulbs.
See "Bulb Replacement" in section
"Maintenance and Care" for further
details.
Twilight Sensor Failure Warning Light
This warning light illuminates
in the case of a failure of the
twilight sensor.
Contact anAuthorized
Maserati Dealerto have the vehicle
checked.
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