Maserati Grandturismo Sport. Service Manual - part 4

2

54

Obstacle signaling

The acoustic signals are emitted 
by two buzzers, one under the 
dashboard and one in proximity of 
the luggage shelf.
When the obstacle is located at 
a distance of less than 14 in (35 
cm) from the bumper, the beep is 
continuous. The warning beep stops 
immediately if the distance between 
the vehicle and the obstacle increases.
The tone cycle is constant if the 
distance measured by the central 
sensors remains unaltered, while if 
this occurs with the lateral sensors, 
the signal stops after approximately 
7 seconds, to prevent for example 
continuous beeps in the event of 
manoeuvres alongside walls.
The distance from the obstacles can 
also be graphically shown on the 
instrument panel display by means 
of an image that shows the vehicle 
surrounded by explanatory symbols 
of the distance (maximum/average/
minimum) and the position (front/
rear/central/side) of the obstacle 
detected. 
The colour represents the distance, 
while the field represents the 
position. The green color represents 
the maximum distance detected, the 
yellow colour the medium distance 

and the red colour the minimum one.
If the vehicle is equipped only with 
rear sensors, the front sensors are not 
shown in the image.
If the vehicle is equipped with front 
and rear sensors, the rear sensors are 
not shown in the image if only the 
front sensors are active. 

For the system to operate 
correctly the sensors 
positioned on the bumper 

must be kept clean (remove any mud, 
dirt, snow or ice).

Cleaning the sensors 

When cleaning the sensors, take 
special care not to scratch or damage 
them; therefore, do not use dry, 
rough or hard cloth. 
The sensors must be washed with 
clean water, possibly with car 
shampoo added. 
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 sensor 
operation.

2

55

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 1 yd (0,9 m) 

at the front and 1.6 yd (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 0.9 yd (0,8 m).

2

56

Failure indicators 

The system ECU is designed to check 
all the components every time reverse 
gear is engaged. 
In the event that the parking 
sensors fail, the relative warning 
light 

 illuminates on the display, 

accompanied by the message 
“Parking Sensor Failure”.
In the event of a failure signal, stop 
the vehicle and turn the ignition key 
to STOP (OFF). 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 
ignition key to the MAR (ON) position. 
If the cause of the operating fault has 
been eliminated, full operation of the 
system will be recovered. 
If however, the failure beep 
continues, contact the Authorized 
Maserati Dealer to have the system 
checked.

During parking manoeuvres, 
always be extremely careful 
with obstacles that might be 

located above or below the sensors. 
In fact, in certain circumstances, 
objects located near the rear of 
the vehicle are not detected by 
the system and therefore could 
damage the vehicle or be damaged 
themselves.

The signals transmitted 
by the sensors can also be 
altered by damage to the 

sensors or by dirt, snow or ice on the 
latter or even by mechanisms which 
emit ultrasonic frequencies (e.g. 
pneumatic truck brakes or pneumatic 
hammers) in the vicinity of the 
vehicle.

The driver is fully 
responsible for parking 
and other potentially 

dangerous manoeuvres. During these 
manoeuvres, always make sure there 
are no people (especially children) or 
animals in the manoeuvring area. The 
parking sensors must be considered 
an aid for the driver who, ultimately, 
must always take care during 
potentially dangerous manoeuvres, 
even at low speeds.

A

California Proposition 65 
Warning

THIS MOTOR VEHICLE CONTAINS 
CHEMICALS KNOWN TO THE 
STATE OF CALIFORNIA TO CAUSE 
CANCER, BIRTH DEFECTS OR OTHER 
REPRODUCTIVE HARM (see page 7)

2

57

Fuel cut-off inertia switch

The vehicle is equipped with a safety 
switch which is designed to activate in 
the event of a collision, cutting off the 
fuel supply and consequently causing 
the engine to stop. It also prevents 
fuel spreading if the fuel lines are 
damaged during the accident.
Activation of the safety switch is 
signaled by the illumination of the 
warning light 

 on the display. 

The switch is positioned underneath 
the front left-hand seat. 

After a collision, if you smell 
fuel or note any leakage 
from the fuel supply system, 

do not reactivate the switch in order 
to prevent any fire risks. 

The activation of the inertia switch 
causes all the doors and the luggage 
compartment to unlock and in the 
internal dome light and the four 
direction indicators to turn on.

Resetting the switch

Turn the ignition key to position STOP 
(OFF).
Check that there is no leakage from 
the fuel system.
If no leaks are found, reset the inertia 
switch which stops the fuel pump 
operation, by pressing button A on 
the switch.
Turn the ignition key to position MAR 
(ON), wait a few seconds and move it 
to ACC.
Check that the warning light 

 on 

the display is off.
Check once again that there are no 
fuel leaks.

Note: Contact an Authorized Maserati 
Dealer.

3

59

Instruments and controls

Dashboard  

60

Instrument panel 

65

Controls and warning lights 

66

Instruments and gauges 

72

Controls  

77

Internal equipment  

82

1

35 34 33 32

30

27

25

26

23 22

29

31

2

3

6

7

8

9 10 11

13 14

1

16

15

12

19

18 23

20

21

5

4

28

28

17

22 24

3

60

Dashboard 

A

B

C

D

3

61

1)  Air conditioning side vents
2)  Lower gearshift paddle DOWN
3) Instrument 

panel

4)  Air conditioning upper vent
5)  Sun radiation sensor
6) Driver’s 

airbag

7) Windshield/headlight 

wiper/

washer control lever

8)  Side buttons, to the left of the 

Multi Media System Display 

9)  Upper gearshift paddle UP
10) Clock
11)  Central air-conditioning vents
12)  Multi Media System display
13) Passenger’s airbag
14)  Side window vents
15)  Multi Media System controls
16) Glove compartment
17)  Automatic gearshift lever
18)  Ashtray and cigarette lighter
19)  Internal passenger’s door opening 

handle

20)  Passenger’s door power window 

control 

21)  Passenger seatback tilting lever

22) Beverage holder
23)  Air conditioning rear vents
24) Pocket-change compartment
25)  Electric parking brake 

engagement/disengagement 
lever

26)  Buttons underneath air 

conditioning controls

27)  Air conditioning controls
28)  Multi Media System controls 

repeated on the steering wheel

29)  Starter/steering wheel lock switch
30) Horn control
31)  Seat adjustment controls 
32)  Steering wheel height and depth 

adjustment control

33)  Lever controlling cruise control, 

direction indicators, high beams 
and flashing headlights

34)  Controls to the left of the 

steering wheel

35)  Engine compartment lid opening 

lever

Ref. 8 Side buttons, to the left of the 
Multi Media System Display

A  - SPORT mode button
B  - Low grip mode button (ICE)
C  - PARK OFF function button (see 

page 163)

D  - ESC OFF system deactivation 

button

A

B

B

A

C

D

E

F

G

H

3

62

Ref. 29 Multi Media System controls 
repeated on the steering wheel

A  - Increases the sound system 

volume.

B  - Decreases the sound system 

volume.

C  - Voice control function activation/

deactivation.

    Navigator Mode: Enables the 

guiding voice during the trip 
guidance and also displays 
information pertaining to the 
guidance session.

D - Button pressed briefly
    Telematic mode activation.
    Place call, paired telephone.
    Accept incoming call, paired 

telephone.

    End call in progress, paired 

telephone.

   

    Button pressed at length
    Reject incoming telephone call, 

paired telephone.

E - Button pressed briefly
    Radio mode: Search for the first 

tuneable station with higher 
frequency. 

 

SIRIUS satellite radio mode 
(where available): goes to the 
next category starting from the 
one currently selected.

 

CD, Jukebox, USB and iPod Mode: 
next track selection.

    Button pressed at length
 

CD, Jukebox, USB and iPod mode: 
track fast forward.

Ref. 27 Buttons underneath air 
conditioning controls

A  - Hazard light button
B  - Door lock/unlock button

I

K

J

A

B

C

G

E

D

F

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63

F - Button pressed briefly
 

Radio mode: Searches for the 
first tunable station with a lower 
frequency. 

 

SIRIUS satellite radio mode 
(where available): goes to the 
previous category starting from 
the one currently selected.

 

CD, Jukebox, USB and iPod Mode: 
goes to previous track if selected 
within the first 3 seconds of track 
playing, otherwise the track is 
played again from the beginning.

 

Button pressed at length

 

CD, Jukebox, USB and iPod mode: 
track fast rewind.

G  - Mode selection: radio, CD, 

Jukebox or iPod.

H  - Mute function on/off.

I  - Radio mode: radio frequency shift 

to the next station in preset steps, 
starting from the station currently 
tuned in.

 

SIRIUS satellite radio mode 
(where available): shifts the radio 
channel to the next station in 
preset steps, starting from the 
station currently tuned in.

 

CD, MP3, Jukebox, USB and iPod 
Mode: selects the next folder.

 

Menu: scrolls through the menus.

J  -  Radio mode: shifts the radio 

frequency to the previous station 
in preset steps, starting from the 
station currently tuned in.

    SIRIUS satellite radio mode 

(where available): shifts the 
previous radio channel starting 
from the station currently tuned 
in.

    CD, MP3, Jukebox, USB and iPod 

Mode: selects the previous folder.

    Menu: scrolls through the menus.
K  - Confirms the function, item or 

value selected. 

Ref. 35 Controls to the left of the 
steering wheel 

A - Light switch
B  - Fuel tank door opening button
C  - Luggage compartment lid 

opening button

D - Mode button 
E  - Instrument panel brightness 

control (UP) 

F  - Instrument panel brightness 

control (DOWN) 

G  -  Front parking sensors enable/

disable.  

C

B

A

A

B

C

C

A

B

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64

Controls on driver’s door 

A  - Front left-hand power window 

control

B  - Front right-hand power window 

control

C  - External rear-view mirror controls

Controls on inside roof

A  - Anti-lift alarm system deactivation
B  - Alarm system motion sensor 

deactivation

C  - Paired telephone hands-free 

microphone

Controls on front dome light 

A  - LH side light switch
B  - Central light switch
C  - RH side light switch 

1

2

3

4

5

3

65

Instrument panel

1)  Fuel level gauge and low fuel 

indicator 

2) Speedometer 
3) Display

4) Tachometer
5)  Coolant thermometer and high 

temperature warning light

3

66

Controls and warning 
lights

Rear fog lights

When the rear fog lights are 
turned on.

Position lights/low beams

This warning light 
illuminates when the 

position lights, low beams or parking 
lights are turned on.

High beams

When the high beams are 
turned on or used to flash. 

Parking lights

With the key removed, it 
indicates that the parking 

lights are on.

Alternator failure

This warning light 
illuminates when there is a 

fault in the charging system.
When the battery is insufficiently 
charged or overcharged (flashing).

Engine failure control 
system (OBDII) (*)

In normal conditions, this 

warning light should illuminate when 
the ignition key is turned to MAR 
(ON) and should go off as soon as the 
engine is started. This will show that , 
the warning light is working properly.
If the warning light remains on or 
illuminates while driving, it indicates 
that there is a failure in the fuel 
supply/ignition and emission control 
system. This failure could cause 
high exhaust emissions, loss of 
performance, poor vehicle handling 
and high consumption levels.
In these conditions you can proceed 
slowly without demanding engine 
performance. Prolonged use of the 
vehicle when this warning light is 
illuminated may cause damage. For 
this reason, you should contact your 
Authorized Maserati Dealer as soon as 
possible. The warning light will go off 
if the problem is no longer present. 
The error will be stored by the system 
in any case.

WARNING: When the ignition key is 
turned to MAR (ON), if the warning 
light 

 does not illuminate or if it 

illuminates while driving, contact your 
Authorized Maserati Dealer as soon as 
possible.

Automatic gearbox 
failure (*)

Depending on the message 

displayed it signals:
-  a gearbox failure. 
If the failure permits, slowly drive 
to the nearest Authorized Maserati 
Dealer.
-  a too high temperature of the 

gearbox oil. 

In this case, slow down until the 
temperature goes down to the 
normal values for use (the warning 
light goes off), see page 144.

Low oil pressure (*)

Under normal conditions, 
the warning light should 

illuminate when the ignition key is 
turned to MAR (ON) and should go 
off as soon as the engine is started. 
If the warning light remains on 
or illuminates while driving, this 
indicates a too low engine oil 
pressure. 
In this case, turn the engine off 
immediately and carry out the 
necessary checks.
If the problem persists, contact your 
Authorized Maserati Dealer.

3

67

Tire pressure (TPMS) (*)

This warning light is 
connected to the Tire 

Pressure Monitoring System (TPMS). It 
illuminates when the system detects 
an insufficient tire pressure or a 
sudden loss of pressure (punctured 
tire) of one or more tires.
If the warning light flashes prior to 
remain on, it indicates that the system 
is temporarily unavailable.

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.

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 
leakage in the circuit. Contact your 
Authorized Maserati Dealer before 
driving further.

Defective ABS system (*)

This warning light 
illuminates when the 

ABS system is not functioning. The 
standard braking system remains 
operational, but it is advisable to 
contact your Authorized Maserati 
Dealer as soon as possible.

Seat belts (*)

This warning light 
illuminates when the driver’s 

seat belt is not fastened or improperly 
fastened. A buzzer is also activated 
when the warning light is on. 

Airbag/pretensioner 
failure (*)

When the pretensioner and/

or airbag system are/is defective.

Air Bag warning light 
malfunction (*)

The warning light flashes 

to indicate a malfunction of the “air 
bag/pretensioners warning light”  .

Turning the key to MAR 
(ON), the warning light 
illuminates but should go off 

after a few seconds with the engine 
running.

If the warning 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.

Maserati CODE (*)

With the ignition key 
in MAR (ON) position, 

the amber warning lights on the 
instrument panel and on the multi-
function display illuminate 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.

3

68

Brake pads worn (*)

This warning light 
illuminates on the 

instrument cluster (for versions/
markets, where provided) when the 
brake pads have reached their wear 
limit. Please contact the Authorized 
Maserati Dealer.

Parking brake engaged 

This warning light 
illuminates when the 

parking brake is applied.

ESC system  
malfunction (*)

Indicates a malfunction in 

the ESC system. 
Please contact your Authorized 
Maserati Dealer.

Overriding  
the ESC system (*)

This lights up when the ESC 

system is overridden.

Right-hand side 
indicators

This warning light 

illuminates when the right-hand 
direction indicators or the hazard 
lights are turned on.

Left-hand direction 
indicators

This warning light 

illuminates when the left-hand 
direction indicators or the hazard 
lights are turned on.

(*) Viewed on the display as well

Warning lights on the display 

Brake Pads Wear Warning 
Light

It turns on to indicate that 

the brake pads have reached their 
wear limit.
The display will show the warning 
light and the message “Check Brake 
Pads”.
The warning light and the message 
will be displayed for 10 seconds.
Please contact an Authorized 
Maserati Dealer.

Inertia switch, fuel cut-
out enabled

This warning light 

illuminates when a collision activates 
the inertia switch, thus cutting off the 
fuel supply.

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 washer fluid

This warning light signals a 
low level of washer fluid in 

the windshield washer tank.

3

69

Cruise Control

This warning light indicates 
that the constant speed 

regulator, Cruise Control, is active.

Lighting system failure 

This warning light 
illuminates in the case of a 

system failure or burning-out of the 
position, direction indicator, rear fog 
and license plate light bulbs.

Stop light failure

This warning light 
illuminates in the case of a 

system failure or burning-out of the 
stop light bulbs.

Twilight sensor failure

This warning light 
illuminates in the case of a 

failure of the twilight sensor.

Catalyst temperature too 
high

This warning light 

illuminates if the engine runs 
irregularly with consequent high 
temperature in the exhaust system.

IF THE WARNING LIGHT 
IS ACCOMPANIED BY THE 
MESSAGE “HIGH CATALYTIC 

CONV. TEMPERATURE SLOW DOWN”: 
the catalytic converter temperature is 
too high. The driver must slow down 
immediately until the warning light 
turns off.

IF THE MESSAGE 
“EXCESSIVE CATALYTIC 
CONV. TEMPERATURE DO 

NOT PROCEED” 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 workshop.

If the warning light 
illuminates 3 times, the 
engine will stops. The engine 

can only be restarted turning the key 
to off and then back to on. Go to the 
nearest Authorized Maserati Dealer 
driving at reduced speed.

Maserati declines all 
responsibility for personal 
injuries or property damage 

deriving from non compliance with 
the above mentioned warnings.

Power steering failure

This warning light indicates 
that the power steering 

system is malfunctioning.
Drive slowly to the nearest 
Authorized Maserati Dealer , being 
extremely careful as steering effort 
may increase. 

Low engine oil level

This warning light indicates 
that the engine oil level is 

low; to check it see page 214.

Low Automatic gearbox 
oil level

The red symbol indicates 

that the gearbox oil level is too low. 
Stop the vehicle and contact your 
Authorized Maserati Dealer to have 
the system checked. 

California Proposition 65 
Warning

THIS MOTOR VEHICLE CONTAINS 
CHEMICALS KNOWN TO THE 
STATE OF CALIFORNIA TO CAUSE 
CANCER, BIRTH DEFECTS OR OTHER 
REPRODUCTIVE HARM (see page 7)

3

70

Excessive coolant 
temperature

Coupled to the “Coolant 

thermometer”, it comes on together 
with the warning light on the 
instrument panel and indicates an 
excessive temperature of the coolant.
In this condition, stop the vehicle and 
have the cooling system checked by 
your Authorized Maserati Dealer.

ALC system failure

This warning light indicates 
a failure of the automatic 

headlight aiming system.

ASR system failure

This warning light indicates 
the deactivation or failure 

of the ASR system. In the event of 
a failure, contact your Authorized 
Maserati Dealer.

Rain sensor failure

This warning light indicates 
that the rain sensor is faulty.

Parking sensor failure

This warning light indicates 
that the parking sensor 

system is faulty.

Shock absorber failure

While driving, it indicates 
a malfunction in the 

suspension system.

Doors and lids open

This warning light indicates 
that the doors or lids are 

open or not properly closed; the 
display also shows an image of the 
vehicle with the part not closed 
highlighted in red.

WARNING: Before starting off, close 
any doors and lids that are open or 
not properly closed.

Ice hazard

This warning light 
illuminates when the outside 

temperature is 37.4 °F (3° C) or lower, 
in order to indicate the risk of icy road 
surfaces. Under such conditions, drive 
carefully and slow down as the grip of 
the tires could be markedly reduced.

 
Do not activate SPORT mode 
in this situation.

Vehicle set to SPORT 

When the button that sets 
the vehicle to the SPORT 

mode is pressed.

WARNING: SPORT mode changes the 
vehicle driving features.

WARNING: SPORT mode should not be 
activated if the road surface is in poor 
conditions or or slippery.

WARNING: In low- and medium-grip 
conditions (e.g., rain, snow, ice, sand, 
etc.) it is advisable not to activate 
SPORT mode, even with the ESC 
enabled.

EPB automatic operation 
disabled 

This warning light indicates 

that the EPB automatic activation/
deactivation function is disabled. 

Automatic gearbox 

This warning light indicates 
that the automatic gearbox 

feature is active.

“Low grip” function

This warning light indicates 
that the low grip function is 

active.

Seat heating

This warning light indicates 
that the heating function is 

activated on one or more seats.