brakes MASERATI GRANTURISMO CONVERTIBLE 2019 Owners Manual

the distance (maximum/average/
minimum) and the position
(front/rear/central/side) of the obstacle
detected.
The color represents the distance,
while the field represents the position.
The green color represents the
maximum distance detected, the
yellow color the medium distance and
the red color the minimum one. The
rear sensors are not shown in the
image on the instrument cluster
display if only the front sensors are
active.
WARNING!
For the system to operate correctly the
sensors positioned on the bumper
must be kept clean (remove any mud,
dirt, snow or ice). Sensor Range The sensors allow the system to
monitor the front and rear of the
vehicle; they are positioned so as to
monitor the central and lateral zones
at the front and at the rear of the
vehicle.
In the event of an obstacle located in a
central area, this will be detected at
distances of less than 35 in (0,9 m) at
the front and 59 in (1,50 m) at the rear,
depending on the type of obstacle and
its dimensions.
If the obstacle is located in a lateral
position, it will be detected at
distances of less than 31 in (0,8 m).
Failure Indicators The system ECU checks all the
components every time R (Reverse)
gear is engaged.
In the event that the parking sensors
fail, the relative
warning light and
message illuminate on the instrument
cluster display.
In the event of a failure signal, stop
the vehicle and turn the key in the
ignition switch to STOP (OFF) position.
Then try cleaning the sensors or
moving the vehicle away from any
possible ultrasound sources (e.g.
pneumatic truck brakes or pneumatic hammers) and rotate the key to the
MAR (ON) position. So, if the
operating failure cause has been
eliminated, system full operation will
be recovered. If however, the failure
beep continues, contact an Authorized
Maserati Dealer to have the system
checked.
Cleaning the Park Assist
Sensors When cleaning the sensors, take
special care not to scratch or damage
them; therefore, do not use dry, rough
or hard cloths.
The sensors must be washed with clean
water, possibly adding car shampoo.
Should you need to repaint the
bumper or in case of paint touch-ups
in the sensor area, please contact
exclusively the Authorized Maserati
Dealer . Incorrect paint application
could affect the parking sensors
operation.
Park Assist System Usage
Precautions NOTE:
• Jackhammers, large trucks, and other
vibrations could affect the
performance of Park Assist.Before Starting
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Cargo Area WARNING!
To help protect against personal
injury, passengers must not be seated
in the rear cargo area. The rear cargo
space is intended for load carrying
purposes only, not for passengers,
who should sit in seats and use seat
belts.
Vehicle Load Carrying Capacity The load carrying capacity of your
vehicle is shown on the “Tire and
Loading Information Label”
positioned on the rear driver door's
pillar.
The information indicated on the label
concerns passengers and luggage
loading operations. Do not exceed the specified Gross
Vehicle Weight Rating (GVWR) or the
Gross Axle Weight Rating (GAWR) for
either the front or rear axle.
The GVWR is the total allowable
weight of your vehicle. This includes
driver, passengers, and cargo.
The maximum load which may be
carried in the rear luggage
compartment is 66 lbs (30 kg).
WARNING!
Do not exceed the GVWR, or front or
rear GAWR. Exceeding these limits
may lead to poor handling, vehicle
instability or tire damage which could
cause a crash in which you or others
could be seriously injured or killed.
WARNING!
• Improper weight distribution can
have an adverse effect on the way
the vehicle steers, handles and the
way the brakes operate.
• Never drive with the trunk lid open.
Exhaust gases can enter the
passenger compartment. The trunk is the most suitable place to
load
bulky and heavy objects onboard
the vehicle.
To load your vehicle properly, store
heavier items below and be sure you
distribute their weight as evenly as
possible.
Stow all loose items securely before
start driving as they could move
during the trip.
Carrying Luggage on Rear
Seats Light luggage may be transported on
the rear seats only if they are securely
anchored on the seats using the
tethers provided (upon request).
Installation
• Fasten one end of the tether to the
"U" metal ring positioned in the
center of the seat, between the
cushion and the backrest.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 pressure of 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 in MAR (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 in MAR (ON) position, please visit as
soon as possible an Authorized
Maserati Dealer in order to restore the
Anti-Lock brakes functions.
Seat Belt Reminder Light (*)
When the key in the ignition
switch is in MAR (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.Dashboard Instruments and Controls
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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 early locking of the rear wheels. Driving
extremely carefully, immediately go to
the nearest Authorized Maserati
Dealer to 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 Dealer as 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 in MAR (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 an Authorized Maserati Dealer as
soon as possible to have the problem
diagnosed and restored.
NOTE:
Each time the key in the ignition
switch is turned in MAR (ON) position:
• The ESC off indicator light and the
ESC malfunction indicator light
illuminate temporarily.Dashboard Instruments and Controls
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5 – Driving
Normal Starting of the Engine............................. 158
Automatic Transmission .................................. 160
Onboard Computer (Trip) ................................ 167
Drive Mode ........................................... 169
Parking Brake ......................................... 174
Parking .............................................. 176
Brake and Stability Control System ......................... 177
Using the Brakes ....................................... 181
Use of the Engine ...................................... 183
Cruise Control (CC) ...................................... 185
Tires - General Information ............................... 187
Tire Pressure Monitoring System - TPMS ...................... 194
Fuel Requirements ...................................... 199
Refueling ............................................. 202
Driving Conditions ...................................... 204
Pollution Control Devices ................................. 207
157

Normal Starting of the
Engine
WARNING!
It is dangerous to run the engine in an
enclosed area. The engine consumes
oxygen and discharges carbon
dioxide, carbon monoxide and other
toxic gases in the atmosphere.
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
When you open a door to get into the
car
, the instrument cluster turns on.
The TFT displays the complete
odometer, time, outside temperature
and the
open doors indicator.
Before starting the engine, close the
doors, adjust your seat, the inside and
outside mirrors, fasten your seat belt
and instruct all other occupants to
buckle their seat belts.
Make sure that the Electric Parking
Brake (EPB) is applied.
The shift lever must be in P (Park) or N
(Neutral) position before you can start
the engine. Apply the brakes before
shifting into any driving gear (see
“Automatic Transmission” in this
section).
CAUTION!
• Before starting the engine, switch off the electrical devices with a high
power consumption (air-conditioning
and heating system, heated rear
window, headlights, etc.).
• Do not start the engine if the fuel level in the tank is low. Press the brake pedal and turn the key
in

the ignition switch to MAR (ON)
position.
Instrument cluster displays the initial
sequence with warning light and
analog instruments test routine.
Turn the key into AVVposition and
release it when the engine starts. The
key will return to MAR (ON)position
automatically.
Do not hold the key in AVVposition
for a long time.
If the engine fails to start, the starter
will disengage automatically after 10
seconds. If you wish to stop the
cranking of the engine prior to
starting it, turn the key to STOP (OFF)
position.
If the engine does not start, turn the
key to STOP (OFF) position and wait
for the gear display to go off. Then
repeat the entire procedure.
NOTE:
Normal starting of either a cold or a
warm engine is obtained without
pumping or pressing the accelerator
pedal.
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(Drive) to R (Reverse), and vice versa,
by pressing the unlock button on the
transmission shift lever.
• Vehicle moving: switching to N (Neutral) from D (Drive) requires the
unlock button on the shift lever
pressed.
• From D (Drive) selected mode it is always possible to switch to
MANUAL mode by shifting the
transmission shift lever to "+" or "–"
position.
The gears will be engaged in relation
to the traveling speed, engine RPM,
accelerator position, speed with which
the pedal is depressed as well as the
traveling conditions (uphill, downhill,
curves).
The system has been programmed to
classify all driving styles, in relation to
the above mentioned parameters, and
to associate them with the various
vehicle settings, which go from
extremely comfortable and economic
driving to racing-style driving. The
setting is selected automatically.
At extremely cold temperatures
(-23°F/-30°C or below), transmission
may be affected by the low
temperature of the engine and
transmission. Normal operation will
resume once the transmission temperature has risen to a normal
level.
Transmission Strategy in
Particular Driving Situations
Downhill Driving
When the accelerator pedal is
released, the transmission system
detects that the vehicle is moving
downhill and deactivates upshifting.
When the accelerator pedal is
depressed, upshifting is reactivated
but will be delayed by a few seconds.
When the brake pedal is depressed,
the transmission system downshifts to
provide enhanced engine braking
power.
In other words, when driving
downhill, the transmission system
operates so as to avoid upshifting and
shifting gears when the accelerator
pedal is released, and delays gear
engagement by a few seconds when
the accelerator pedal is depressed.
In addition, when the brakes are
applied, it engages the lowest gear in
order to provide enhanced engine
braking power.
This strategy is aimed at making
downhill driving safer.
Driving in Curves
The system detects when the vehicle
goes into a curve through the lateral
acceleration and the steering angle.
Detecting this condition, it controls
gearshifting using a specific mode.
This mode is exited when the vehicle
comes out of the curve, at a distance
that varies depending on the vehicle
speed.
Fast-off Strategy
When the accelerator pedal is fully
released, the system deactivates
upshifting.
The next time the pedal is depressed,
upshifting will be reactivated only
after a few seconds.
Upshifting is also deactivated when
the accelerator pedal is partially
released; the system waits the time
necessary to evaluate if the release
action is completed.
Hot-mode Situations
In the event that the engine oil or
coolant temperature is too high or
both, the transmission system reduces
the maximum engine speed to 4000
rpm.
Therefore, upshifting will occur at this
limit.
This strategy does not apply to
downhill driving, so as to always have
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Parking Brake” in section “In an
Emergency”).
• “Parking Brake system revision: go to dealer”
The EPB system requires
maintenance, therefore contact an
Authorized Maserati Dealer to have
the system corrected.
WARNING!
In the event of an EPB failure, take
your vehicle to the nearest Authorized
Maserati Dealer as soon as possible.
Initialize the EPB System after a
Battery
Disconnecting
After the detachment and the
subsequent connection of the battery,
on the instrument cluster display the
warning light will light up.
To initialize the EPB system lift, release
and lift again the lever located next to
the transmission shift lever.
Emergency Disengagement
In case of brake lock with complete
electrical system failure, it is necessary
to act on the electric actuator using
the special tool provided in the tool kit
to release the pressure of the parking
brake shoes (see “Emergency Release of the Parking Brake” chapter in
section “In an Emergency”).
EPB Operation with
Overheated Brakes
Driving on mountain roads with steep
slopes or a sports use of the vehicle
could overheat the brake system
components. In these conditions,
parking brake must not be used since
the push of the power actuator might
not be sufficient to ensure vehicle
braking, especially on a slope.
Drive normally without braking to
allow the brakes to cool down a few
minutes before stopping. In this way,
the automatic or manual activation of
the parking brake will ensure vehicle
braking.
Parking
Straighten the wheels and turn off the
engine.
Before leaving the vehicle, make sure
that the parking brake is fully applied
in automatic or manual mode and
place the transmission lever in the P
(Park) position.
Remove the key from the ignition
switch.
WARNING!
• Always check that the vehicle is
locked before leaving it.
• Never leave children unattended in
the vehicle.
• Do not park the vehicle on paper,
grass, dry leaves or other flammable
materials. They could catch fire if
they come into contact with hot
parts of the exhaust system.
• Do not leave the engine running
while the vehicle is unattended.
CAUTION!
When you need to park the vehicle on
a steep slope, both with the engine on
and off, it is recommended not only to
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engage the parking brake, but also to
shift the transmission shift lever to P
(Park) before leaving the vehicle.
When parking on hill roads, it is
important
to turn the front wheels
toward the curb on a downhill grade
and away from the curb on an uphill
grade.
Apply the parking brake before
placing the shift lever in P (Park),
otherwise the load on the
transmission locking mechanism may
make it difficult to move the shift
lever out of P (Park).
In certain conditions, it is however
advisable to disengage the parking
brake manually and slightly apply the
service brake for starting off. This is
advisable when there are obstacles
very close to the vehicle in the
direction in which you intend to move.
Brake and Stability
Control System
The vehicle is equipped with an
Electronic Stability Control (ESC)
anti-yawing system, which helps to
maintain directional control in the
event of loss of grip of the tires. The
system is able to detect potentially
dangerous situations for the stability
of the vehicle and automatically sets
the brakes on all four wheels in a
differentiated manner, in order to
provide a torque settlement of the
vehicle.
ESC includes the following subsystems:
• ASR (Anti-Slip Regulation)
• ABS (Anti-lock Braking System)
• EBD (Electronic Brake-force Distribution)
• HBA (Hydraulic Brake Assistance)
• BOS (Brake Override System)
WARNING!
• These systems cannot prevent the
natural laws of physics from
affecting the vehicle, nor can they
increase traction, braking or steering
efficiency beyond that afforded by
the condition of the vehicle brakes
and tires. •
These systems cannot prevent
collisions, including those resulting
from excessive speed in turns,
following another vehicle too
closely, or hydroplaning.
• The capabilities of a vehicle
equipped with these systems must
never be exploited in a reckless or
dangerous manner that could
jeopardize the driver’s and the
passenger’s safety or the safety of
others.
Electronic Stability Control
(ESC)
This system enhances directional
control and stability of the vehicle
under various driving conditions. The
ESC corrects over steering and under
steering of the vehicle by applying the
brake to the appropriate wheel.
Engine power may also be reduced to
assist in counteracting the conditions
of instability and maintain the right
direction. The system is also able to
reduce the engine power.
Through sensors fitted on the vehicle,
the ESC system detects the driver’s
chosen direction comparing it to the
one maintained while running. In case
of discrepancy between the required
trajectory and the current one, the
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ESC system brakes the appropriate
wheel to counteract over or under
steering.
• Oversteer - when the vehicle isturning more than appropriate for
the steering wheel position.
• Understeer - when the vehicle is turning less than appropriate for the
steering wheel position.
The ESC system has two available
operating modes:
ESC On
This is the normal ESC operating mode.
At each start-up of the vehicle, the ESC
system is set in this mode and should
be used for most driving conditions.
The ESC should only be turned off for
specific reasons as pointed out in the
following paragraphs.
ESC Off
The “ESC Off” mode is aimed for a
more spirited driving experience but
also purposeful for driving in deep
snow, sand, or gravel. The current
mode disables the traction control
portion of the ESC and raises the
threshold for ESC activation, allowing
higher wheel spin than normally
granted by the ESC system. The
(ESC
Off) button is fitted in front of the
transmission shift lever: to deactivate the system see “Drive Mode” in this
section.
WARNING!
In SPORT mode the ESC control
thresholds are higher for maximum
performance on dry road surface. To
ensure maximum security of the ESC is
recommended not to activate SPORT
mode on surfaces with medium- and
low-grip (e.g., wet, snow, dirt, etc..)
with ESC system active (button
(ESC
Off) not pressed).
NOTE:
T
o improve the vehicle's traction when
driving with snow chains, or when
starting off in deep snow, sand, or
gravel, it may be desirable to switch to
the “ESC Off” mode by pressing the
(ESC Off) button and remain in this
operational mode no longer than
needed. Once the situation requiring
“ESC Off” mode is overcome, turn the
ESC on again by pressing the
(ESC
Off) button. This may also be
performed while in motion.
Anti-Slip Regulation (ASR)
The ASR incorporated in the ESC
system avoids skidding of the driving
wheels during acceleration by means
of the engine control unit (spark
advance delay, engine throttle
opening reduction and fuel injection
cut) and the rear brakes.
The ASR system is designed to enhance
vehicle stability and active safety while
driving, especially under the following
conditions:
• internal wheel skidding on curves due to the load dynamic variations or
excessive acceleration;
• excessive power transmitted to the wheels, also in relation to the road
surface conditions;
• acceleration on slippery, snowy or icy road surfaces;
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