Maserati Grandturismo Sport. Service Manual - part 3

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)

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Do not tamper or damage 
the airbag modules. If, for 
any reason, an airbag cover 

gets damaged, have the airbag 
module immediately checked by an 
Authorized Maserati Dealer. 

Activation of a damaged 
module could cause serious 
or fatal injuries. Please note 

that your vehicle is not capable of 
automatically detecting damage to 
the airbag cover.

Operation and replacement

The airbags are controlled by an ECU 
that is designed to activate them in 
the case of a head-on collision of 
sufficient force.
In the event of a collision with an 
impact force that causes deceleration 
exceeding the value set for the 
internal sensor, the ECU will transmit 
a signal to deploy the airbags. The 
airbags will begin to inflate, breaking 
the cover along the breakage line 
and will inflate completely in a few 
milliseconds. Once inflated, they will 
serve as a protection between the 
driver and/or passenger and structures 
that could cause injury.
The airbags deflate immediately 
afterward.

The driver and passenger 
are both advised not to 
travel handling objects (e.g., 

beverage cans or bottles, pipes, etc,) 
that could cause injury in the event of 
airbag activation.

WARNING: When the system starts 
operating, gases are released in the 
form of fumes, together with the gas 
used for inflating the airbags.  
These gases are not harmful.

Drive with your hands 
always on the rim of the 
steering wheel so that, in 

the case of activation, the airbag can 
inflate without obstruction. Placing 
hands or arms inside the rim increases 
the risk of arm/hand injuries in the 
event of a crash.

Always keep the seat 
backrest in the upright 
position and sit with your 

back properly resting against it. 
Do not modify the system 
components or wiring under any 
circumstances.

With the ignition key 
inserted and in position MAR 
(ON), although the engine is 

off, the airbags can still be activated 
when the vehicle is stationary if it is 
hit by a moving vehicle. 
Thus, even with the vehicle 
stationary, do not put children in the 
front seat. In addition, remember 
that if the ignition key is in position 
STOP (OFF), none of the safety 
devices (airbags or pretensioner) are 
activated in the event of a collision. 
Failure of the airbags to inflate in 
these circumstances is not indicative 
of system malfunction.

A

B

C

D

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39

WARNING: Do not cut or tamper with 
the connectors of the airbag harness 
or on the airbag modules. 
Do not cover the steering wheel and 
the top part on the instrument panel 
on the passenger’s side with any tape 
or label, or treat it in any way. 
Never remove the steering wheel. 
If necessary, this procedure should 
only be performed by an Authorized 
Maserati Dealer. 
All the airbag system components 
must be replaced after an accident 
that has caused airbag deployment. 
Following an accident not involving 
airbag activation, you must contact 
an Authorized Maserati Dealer to 
have the system checked and replace 
any system components that may be 
damaged or malfunctioning.

Damaged or defective 
components of the airbag 
system cannot be repaired 

and must be replaced.

Improper intervention involving the 
system components can cause failures 
or undesired activation of the airbags 
with damage resulting.  
The airbag system components have 
been specially designed for this 
specific vehicle model. Do not attempt 
to use them on other vehicles, as 
this could cause serious injuries 
to passengers in the event of an 
accident. 
To scrap the vehicle, please contact 
an Authorized Maserati Dealer to 
have the airbag system disposed of 
properly. 
If the vehicle has been stolen or there 
has been an attempted theft, have 

the airbag system checked by an 
Authorized Maserati Dealer.

The airbag modules must 
be replaced at the intervals 
indicated in the “Warranty 

Booklet and Maintenance Schedule”, 
even if the vehicle was not involved 
in collisions. 

The label A on the right-hand side 
of the dashboard, bears the airbag 
system expiration date. Please contact 
an Authorized Maserati Dealer for 
replacement of the system when this 
date approaches.
The labels B, C and D indicate that the 
airbag system is installed.

Note: The label B on the dashboard 
can be removed.

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Side airbags

The side airbags have been designed 
to help enhance the protection level 
provided to passengers travelling in 
the front seats in the event of certain 
medium-high severity collisions.
They consist of an instantaneously 
inflating airbag (side bag) housed in 
the front seat backrests.
In the event of a side impact, an 
electronic control unit processes the 
signals coming from a deceleration 
sensor and activates airbag 
deployment when necessary.
The airbag deploys almost 
instantaneously, placing itself 
between the front passengers the side 
of the vehicle. The airbag deflates 
immediately afterwards.

WARNING: The electronic control unit 
activates the pretensioners, the front 
airbags and side bags on the basis of 
different criteria, according to the 
type of collision. 
Failure of one or the other system to 
activate is not indicative of system 
malfunction.

In the case of low-severity side 
collisions (for which the restraining 
action of the seat belts provides 
adequate protection), the side airbags 
to not deploy. 
The side airbags are not a substitute 
for the seat belts but rather act 
in combination with them. As a 
consequence, the seat belts must 
always be worn as provided for by 
applicable legislation in Europe and in 
most non-European countries.

WARNING: The front and/or side 
airbags may deploy if the vehicle 
suffers a violent impact beneath the 
vehicle body, for example in the event 
of strong impacts against curbs, steps 
or speed bumps, potholes or roads 
with subsidence.

WARNING: The airbags release a 
small amount of powder during 
deployment. This powder is not 
harmful and does not indicate the 
presence of fire; in addition, the 
surface of the deployed airbag and 
the interior of the vehicle may be 
covered with a powdery residue: this 
powder may irritate your skin and 
eyes. In case of contact, wash the 
affected parts with running water and 
neutral soap.

If the warning light 

 

comes on when the vehicle 
is running (indicating a 

fault), contact your local Authorized 
Maserati Dealer as soon as possible to 
have the system checked.

In the event of a collision 
with consequent airbag 
inflation, contact your 

local Authorized Maserati Dealer 
for replacement of the entire safety 
system, electronic control unit, seat 
belts, pretensioners, and to have the 
vehicle’s electrical system checked.

All testing, repairs and 
replacements of the airbag 
system must be performed 

by an Authorized Maserati Dealer.

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41

WARNING: In the case of scrapping 
of the vehicle, contact your local 
Authorized Maserati Dealer to have 
the system deactivated.

WARNING: If the vehicle is sold, the 
new owner must be informed of the 
aforesaid instructions for use and 
warnings, and he/she must also be 
provided with the “Owner’s Manual”.

The electronic control unit 
activates the pretensioners 
and front/lateral airbags 

based on different criteria, according 
to the type of collision. The fact 
that one or more systems do not 
activate is not indicative of a system 
malfunction.

Event Data Recorder (EDR)

This vehicle is equipped with an 
event data recorder (EDR). The main 
purpose of an EDR is to record, 
in certain crash or near crash-
like situations, such as an air bag 
deployment or hitting a road obstacle, 
data that will assist in understanding 
how a vehicle’s systems performed.
The EDR is designed to record data 
related to vehicle dynamics and safety 
systems for 5 seconds.
The EDR in this vehicle is designed to 
record such data as:
s

were operating;

s

passenger safety belts were 
buckled/fastened;

s

depressing the accelerator and/or 
brake pedal; and

s

NOTE: EDR data are recorded by 
your vehicle only if a non-trivial 
crash situation occurs; no data are 
recorded by the EDR under normal 
driving conditions and no personal 
data (e.g., name, gender, age, 
and crash location) are recorded. 
However, other parties, such as law 
enforcement, could combine the 
EDR data with the type of personally 
identifying data routinely acquired 
during a crash investigation.

To read data recorded by an EDR, 
special equipment is required, and 
access to the vehicle or the EDR is 
needed.
In addition to the vehicle 
manufacturer, other parties, such 
as law enforcement, that have the 
special equipment, can read the 
information if they have access to 
vehicle or the EDR.

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

42

General warnings 

When the ignition key is 
turned to the MAR (ON) 
position, the warning 

light 

 comes on, but it switches 

off after approx. 5 seconds. If the 
warning light fails to come on at this 
time, or stays on, or lights up when 
driving, contact your local Authorized 
Maserati Dealer immediately.

Drive with both hands on the 
steering wheel rim, so that 
if the airbag inflates it can 

do so freely, without encountering 
obstacles which can cause serious 
injuries. Do not drive with your 
body curved forwards but keep the 
seatback upright, with your back fully 
against it.

Do not apply stickers or 
other objects to the steering 
wheel or the passenger’s 

airbag compartment.

Do not travel with objects 
in your lap, in front of your 
chest or especially with a 

pipe, pencil or other objects held 
in your mouth. In the event of a 
collision, the deployment of the 
airbag could result in serious injury.

Do not cover the front 
seatbacks with clothing or 
covers.

Note that with the ignition 
key inserted and turned to 
the MAR (ON) position, even 

with the engine switched off, the 
airbags can inflate even if the vehicle 
is stationary, if it is struck by another 
vehicle. Therefore, even with the 
vehicle stationary, children must be 
secured by the specific child restraint 
systems installed on the passenger 
seat. In addition, the airbags will 
not inflate in the event of collisions 
with the vehicle stationary and the 
key removed from the ignition lock; 
failure of the airbags to inflate in 
these circumstances is not indicative 
of a system malfunction.

If the vehicle has been the 
object of theft or attempted 
theft, if it has been 

vandalized or involved in flooding, 
contact your local Authorized 
Maserati Dealer to have the airbag 
system checked.

If repairs are carried out 
on the electrical system 
incorrectly, the airbag could 

be activated, thereby causing injuries 
to anyone in the vicinity. 

The airbags do not replace 
the seat belts but act as a 
supplementary restraint 

system. Moreover, in the event of 
head-on collisions at low speed, side 
impacts, rear impacts or roll-overs, 
the passengers are protected by the 
seat belts only, that must always be 
fastened.

 
Do not wash the seats with 
water or pressurized steam.

Do not hang rigid objects 
onto the clothing hooks or 
onto the handholds.

Do not fit sunshades of any 
kind on the windows or door 
panels.

A

2

43

ESC system

The vehicle is equipped with the ESC 
(Electronic Stability Control) system, 
which contains all the various control 
systems in it: ABS, EBD, ASR and MSR. 
ESC contains a model that supplies a 
very accurate forecast of the vehicle’s 
behavior. It is able to detect whether 
the driver is about to lose control 
of the vehicle. In this case it can 
individually activate the brake calipers 
and the engine control system in 
order to create a torque that counters 
the skid.

Activation

The ESC system is designed to 
automatically activate every time the 
engine starts; it can be overridden by 
pressing button A for approximately 
2 seconds. In this case the warning 
light 

 lights up on the dial and on 

the display, and the latter displays a 
specific message. To turn the system 
back on, press button A again. During 
every stage of the operation, the 
amber warning light 

 will flash on 

the instrument panel.

Malfunction indicator

In the event of a malfunction, the 
system is automatically deactivated 
and it is not possible to reactivate 
it. While the vehicle is moving, this 
state is indicated by the illumination 
of the amber warning light 

 on 

the instrument panel and on the 
multifunction display. The latter also 
displays the message “ESC failure, go 
to dealer”. When the engine is started 
up, the system fault is indicated by 
the illumination of the light 

.

WARNING: In the event of a 
malfunction and when ESC is not 
activated, the vehicle behaves as if it 
were not equipped with this system: it 
is recommended that you go to your 
nearest Authorized Maserati Dealer 
as soon as possible to have the system 
checked.

WARNING: If you need to tow the 
vehicle with two wheels raised, 
make sure that the ignition key is in 
position STOP (OFF). Otherwise, with 
ESC activated, the relative control 
unit memorizes a malfunction and 
the warning lights 

 are activated 

on the instrument panel and display, 
requiring the assistance of an 
Authorized Maserati Dealer to reset 
the system. 

WARNING: In low and medium 
traction conditions (wet weather, 
snow, ice, sand, etc.) you are advised 
not to activate the SPORT function, 
even if ESC is activated.

WARNING: Travelling along high-
banked curves deactivates the system.

2

44

ASR system

The ASR system is designed to help 
avoid 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-out) 
and the rear brakes.
The ASR system is designed to 
enhance vehicle stability and active 
safety while driving, specially under 
the following conditions: 
-  internal wheel slip on curves due 

to the load dynamic variations or 
excessive acceleration 

-  excessive power transmitted to the 

wheels, also in relation to road 
conditions

-  acceleration on slippery, snowy or 

icy road surfaces 

-  in the event of loss of grip on wet 

roads (aquaplaning).

The ASR system is designed to work 
in combination with the electronic 
suspension control system: under 
normal conditions (SPORT mode 
off), stability in low and medium 
grip conditions has priority, while 
with SPORT mode active, the system 
favors traction and optimizes vehicle 
performance on dry asphalt.

Activation

The ASR system is automatically 
activated every time the engine 
starts; it can be overridden by 
pressing button A (see page 43) for 
approximately 2 seconds. In this case 
the warning light 

 lights up on the 

dial and on the display, and the latter 
displays a specific message. 
To turn the system back on, press 
button A again. During every stage 
of the operation, the amber warning 
light 

 will flash on the instrument 

panel.

Malfunction indicators

In the event of a malfunction, the 
system is automatically deactivated 
and it is not possible to reactivate it. 
While the vehicle is moving, this state 
is indicated by the illumination of the 
amber icon 

 on the multifunction 

display, which also displays the 

message “ASR failure, go to dealer”. 
On the instrument panel, the warning 
light 

 comes on.

MSR function (engine braking 
torque adjustment)

The ASR system is also designed to 
help control the engine braking 
torque when the accelerator pedal 
is released under low grip conditions 
(e.g., snow, ice etc.): in these 
conditions, the high braking torque 
provided by the engine may cause 
instability of the vehicle.
The system, using the same sensors 
as the ABS, detects skidding of one 
or both driving wheels when the 
accelerator is released and opens the 
motor-driven throttle of the engine 
fuel system, thus reducing the braking 
torque and re-establishing optimal 
grip conditions for the driving wheels. 

WARNING: The maximum 
deceleration that can be obtained 
with the engine brake always 
depends on the tire grip on the road 
surface. Snow or ice obviously reduces 
grip.

2

45

ABS, EBD, HBA and BOS 
systems

The vehicle is equipped with ABS 
(Anti-lock Braking System) and EBD 
(Electronic Brake force Distribution) 
systems, which are designed to 
help enhance the braking system 
performance by means of the ABS 
system sensors and ECU. 
In the event of emergency braking 
or braking on slippery road surfaces 
(e.g., snow, ice etc.) the ABS, in 
combination with the standard 
braking system, allows the driver 
to apply maximum braking force 
without causing the wheels to lock 
and consequently losing control of 
the vehicle. 
The system uses an electronic control 
unit that processes the signals coming 
from 4 sensors fitted on the 4 wheels.  
When a wheel tends to lock, the 
sensor warns the ECU, which activates 
an electro-hydraulic unit that 
modulates the pressure applied to 
the brake calipers; the driver will feel 
a “pulsing” sensation on the brake 
pedal which is completely normal.
The vehicle is equipped with another 
system to assist braking: HBA 
(Hydraulic Brake Assistance), which 
has been designed to help the driver 

during emergency braking.
In the event of a critical situation, 
where the vehicle should stop in 
the shortest possible distance, the 
driver usually depresses the brake 
pedal quickly, but often not strongly 
enough: this increases the braking 
distance. This system has been 
designed to apply optimal braking 
force during emergency braking, 
in order to stop the vehicle in the 
shortest possible distance.
The system recognizes the emergency 
condition by analyzing certain 
parameters, such as the pressure on 
the brake servo, the wheel speed and 
activation of the third stop.
The ABS control unit is designed to 
cross-check this data and substitute 
the driver by activating the braking 
system full power, so helping to 
ensure optimal braking performance 
in the shortest possible distance.
To complete the range of systems 
that assist braking, the vehicle comes 
equipped with BOS (Brake Override 
System), which is designed to stop 
the vehicle even when it is being 
accelerated. 
If the brake pedal is depressed 
together with the accelerator, the 
engine power should be automatically 
reduced and, if the driver continues 
to depress the accelerator, the system 

may even cause the vehicle to come 
to a complete stop. Additionally, if 
the brake pedal is released when 
the accelerator is still depressed, the 
corresponding engine torque can be 
reached gradually. 
In the event of a failure, the system 
will be deactivated, but this will not 
affect the efficiency of the standard 
braking system.
The failure will be indicated by the 
illumination of the dark yellow 
warning light 

 with the letters 

“ABS” on the instrument panel.
In this case, we recommend you 
contact the nearest Authorized 
Maserati Dealer, where the problem 
will be immediately identified 
through the self-diagnostic function 
of the system.

The vehicle must be 
equipped only with wheels, 
tires and brake pads of the 

type and make approved by the 
Maserati S.p.A. for this model.

Regardless of the fact that 
this device enhances safety 
levels, it is essential to 

always drive with the greatest care 
when the road surface is wet, covered 
with snow or ice.

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

46

The vehicle is equipped 
with an Electronic Brake 
force Distributor (EBD). The 

warning light 

 illuminates when 

the engine is running to indicate 
an EBD system malfunction: in this 
case, sharp braking may cause an 
early locking of the rear wheels, and 
the vehicle may skid. Drive with the 
greatest care and have the system 
immediately checked by the nearest 
Authorized Maserati Dealer.

The failure warning light 

 usually illuminates 

with the engine running to 

indicate a malfunction in the ABS 
system only. In this case, the braking 
system will remain fully functioning, 
but will not use the ABS. In these 
conditions, also the EBD system 
efficiency may be affected. Drive with 
the greatest care in order to avoid 
sudden braking and have the system 
immediately checked by the nearest 
Authorized Maserati Dealer. 

If the low brake fluid 
warning light 

 

illuminates when the engine 

is running, stop the vehicle and check 
the brake fluid level immediately. If 
fluid is below the minimum level, top 
up with the recommended fluid and 
contact your Authorized Maserati 
Dealer immediately. Brake fluid leaks 
affect the operation of the braking 
systems, both the standard one and 
the one equipped with ABS.

System performance in terms 
of active safety is not a 
reason for the driver to take 

unnecessary risks. The driving style 
must always be suited to weather 
conditions, range of visibility and 
road traffic conditions.

The maximum deceleration 
that can be obtained always 
depends on the tire grip on 

the road surface. With snow or ice, 
the grip is obviously reduced and the 
braking distance is greater, even with 
the ABS system.

2

47

TPMS – Tire Pressure 
Monitoring System 

The vehicle is equipped with a system 
that monitors the tire pressure by 
means of special sensors fitted inside 
the wheel rims, in position with 
the inflation valve. These sensors 
transmit a signal that is detected by 
the antennas installed on the vehicle 
body, behind the gravel guards and 
connected to the ECU.

WARNING: The system can 
momentarily experience radio-electric 
interference emitted by devices using 
similar frequencies.

The ECU processes this information 
and, via the CAN line, transmits a 
series of tire pressure data and system 
errors, if any, to the instrument panel.
The display may show the information 
received by means of specific screen 
pages, which can be recalled selecting 
the “Tire Pressure” page.

The system warns the driver 
that the tire pressure has 
decreased. This warning 

does not exempt the driver from 
periodically checking the tires and 
from complying with the prescribed 
tire pressure levels.

WARNING: The system stores the 
tire pressures as a reference rate, 
therefore tires must be inflated to the 
prescribed pressure.

Each tire, including the spare one 
(if provided), should be checked 
monthly when cold and inflated to 
the inflation pressure recommended 
by the vehicle manufacturer on 
the vehicle placard or tire inflation 
pressure label. (If your vehicle has tires 
of a different size than that indicated 
on the vehicle placard or tire inflation 
pressure label, you should determine 
the proper tire inflation pressure for 
those tires.)

As an added safety feature, your 
vehicle has been equipped with a tire 
pressure monitoring system (TPMS) that 
illuminates a low tire pressure warning 
light when one or more of your tires 
is/are significantly under-inflated. 
Accordingly, when the low tire 
pressure warning light illuminates, 
you should stop and check your tires 
as soon as possible, and inflate them 
to the proper pressure. 
Driving on a significantly under-inflated 
tire causes the tire to overheat and can 
lead to tire failure. Under-inflation also 
reduces fuel efficiency and tire tread 
life, and may affect vehicle handling 

and stopping ability.

Please note that the TPMS is 
not a substitute for proper tire 
maintenance, and it is the driver’s 
responsibility to maintain a correct 
tire pressure, even if under-inflation 
has not reached the level to trigger 
illumination of the TPMS low tire 
pressure warning light.
Your vehicle has also been equipped 
with a TPMS malfunction indicator 
that indicates when the system is not 
operating properly. 
The TPMS malfunction indicator is 
combined with the low tire pressure 
warning light. 
When the system detects a 
malfunction, the warning light will 
flash for approximately one minute 
and then remain permanently 
illuminated. 
This sequence will continue upon 
subsequent vehicle start-ups as long 
as the malfunction persists. 

When the malfunction indicator 
is illuminated, the system may not 
be able to detect or signal low tire 
pressure as intended. 
TPMS malfunctions may occur for 
a variety of reasons, including 
the installation of replacement or 
alternate tires or wheels on the 

A

B

2

48

vehicle, that prevent the TPMS from 
functioning properly. Always check 
the TPMS malfunction warning light 
after replacing one or more tires or 
wheels on your vehicle, to ensure that 
the replacement or alternate tires and 
wheels allow the TPMS to continue to 
function properly.

System calibration

The system must be calibrated:
-   after replacing one or more tires
-   after inverting the wheels
-   if you are not sure whether at least 

one of the operations above was 
performed.

If you simply corrected the tire 
inflation pressure, you do not need to 
recalibrate the system. 
To calibrate the system, select the 
screen page “TPMS calibration” 
by pressing the MODE button A. 

Subsequently press and hold button 
“+” B to activate the calibration 
procedure.
This operation may be performed 
with the key at MAR (ON) and the 
engine off. The system will take a few 
seconds to complete the process, and 
during this time the green symbol 

 

and the message “Calibration started” 
will be displayed.
If the user recalls the information 
page showing the pressure levels 
of each tire, dashes “--.--“ will be 
displayed in the place of the values.

WARNING: The system will not 
perform calibration if the pressure is 
below 29 PSI (2 bar).

Viewing messages on the 
display

By pressing the MODE button A 
repeatedly (see on page 74), the user 
can access the information page that 
shows the pressure values of each tire 
(“Tire Pressure” page). 
If system faults are found when 
this page is recalled, the same page 
will be replaced by an information 
message on the problem found. Also 
in this case, the information message 
will be displayed for a preset time. 
When the display time has elapsed, 
the “Tire Pressure” screen page 
becomes available again, but the 
summary symbol for the malfunction 
will remain displayed in the dedicated 
area, until the malfunction is 
corrected.

 

1

2

49

Normal conditions

By pressing the specific button for 
quick information display (MODE 
button A pressed briefly), the user can 
access the information page (screen 
page 1), which displays the pressure 
levels for each tire.

Low tire pressure conditions

The system includes two alarm 
thresholds for monitoring the tire 
pressure, which respectively activate 
a “check tire pressure” indicator light 
and a “low tire inflation pressure” 
warning light, this last one will also 
warn the driver to stop driving.
The system also monitors the sudden 
loss of pressure (punctured tire) of 
one or more tires.
The first alert (check tire pressure 
indicator light) illuminates when 
the pressure of one or more tires 
falls below the low-pressure alarm 
threshold, corresponding to 90% 
of the pressure level set at the 
calibration.
The second warning alert (the low 
inflation pressure tire warning light 
– do not drive on message) activates 
when the pressure of one or more 
tires is below the minimum pressure 
alarm threshold, corresponding to 
83% of the pressure level set at the 
calibration.

A tire puncture (a sudden loss of 
pressure) is signaled when the system 
detects a loss of pressure of one or 
more tires measured within a set 
time frame (0.35 bar/min). In this last 
case, ie a tire puncture detection, the 
system activates the low inflation 
pressure tire warning light – do not 
drive on message.

Note: To perform calibration of the 
system follow the indications from 
paragraph “System calibration” and 
apply the pressure level as indicated 
in chapter “Tire pressure”

2

3

2

50

Low tire inflation pressure  – 
Punctured tire

When the instrument cluster receives 
a signal from the tire pressure ECU 
indicating that the pressure level 
of one or more tires is below the 
alarm threshold or there is a sudden 
pressure loss (punctured tire), the 
warning light 

 will permanently 

illuminate on the instrument cluster 
and screen pages 3 will alternate on 
the display for 20 seconds.
Every time the key is subsequently 
turned back to ON, if the malfunction 
persists the display will show screen 
pages 3 for 20 seconds. 
These screen pages will be displayed 
until the situation is corrected and the 
system is calibrated again as required 
by the system.

Tire pressure checkup

When the onboard instrument panel 
receives a message from the tire 
pressure ECU indicating that one or 
more tires have pressure levels below 
the control threshold, screen page 2 is 
displayed for 10 seconds, after which 
the system will display the screen 
page previously active. 
When the key is subsequently turned 
back to MAR (ON), if the malfunction 
persists the display will show screen 
page 2 once again.

4

5

2

51

System not calibrated

In the event that: the system has 
not been calibrated or following 
replacement or reversal of one or 
more tires, the warning light 

 will 

illuminate on instrument panel, and 
the display will show screen page 4.
Subsequently, the system will display 
the page previously active
The system can be calibrated by 
selecting the “TPMS calibration” page 
on the multifunction display.
The information page that shows the 
pressure value for each tire cannot be 
recalled.

Tire pressure monitoring system 
failure

Screen page 5 may appear in the 
following cases:
s

wiring; 

s

more sensors due to malfunction, 
breakage or dead battery;

s

In addition to screen page 5 being 
displayed, the warning light 

, which 

is permanently illuminated on the 
instrument panel, will flash for 90 
seconds, after which it will remain 
permanently on until the situation is 
corrected. The information page that 
shows the pressure value for each tire 
cannot be recalled by the user.

Note: The TPMS malfunction indicator 
is combined with the low tire pressure 
telltale. When the system detects a 
malfunction, the telltale will flash for 
approximately 90 seconds and then 
remain continuously illuminated.” 
Once the system detects a failure, you 
must go to the Authorized Maserati 
Dealer to fix the problem and 
extinguish the malfunction light.

2

52

Parking sensors 

To assist the driver during parking 
maneuvers, the vehicle is equipped 
with four sensors housed in the rear 
bumper and four sensor in the front 
bumper.
During parking manoeuvres, the 
parking sensors provide the driver 
with information on the distance 
between obstacles found behind 
and in front of the vehicle. The 
information about the obstacle 
distance is given to the driver by 
means of a acoustic and visual signals. 
The acoustic signals generated by 
the system add to the driver’s field of 
vision, allowing him to avoid hitting 
any obstacles during manoeuvres.

However, the driver remains 
responsible during parking 
manoeuvres and in other 

potentially dangerous situations. The 
system has actually been designed 
only as a supplementary aid during 
parking manoeuvres, since it allows 
the driver to detect obstacles outside 
his field of vision.

Extreme caution is required 
in case of obstacles whose 
shape and volume are 

susceptible to be incorrectly detected. 
When starting the vehicle after 
parking, these obstacles might not be 
detected if they are already close to 
the bumper. 
Always stop when the acoustic signal 
becomes steady.

Rear four-sensor system 
activation/deactivation

Rear sensors are automatically activated 
when the key is turned to MAR (ON) 
and when the vehicle is put into 
reverse. A beeper alerts the driver that 
the system is activated. Under these 
conditions, the system displays the 
detection areas of vehicle’s rear end on 
the instrument panel and a beep starts 
as soon as an obstacle is detected. When 
the vehicle is put out of reverse, the rear 
sensors are active for an additional 10 
seconds or until the vehicle exceeds a 
speed of approx. 6 mph (10 km/h).

Stop & Go function

This function is activated by the 
manufacturer and can be deactivated 
by the Multi Media System by 
accessing the “Configuration” menu. 
To deactivate, select the “Define 
vehicle parameters” option, then select 
“Stop & Go parking sensors” and set 
on “Deactivate”. When vehicle speed is 
6 mph (10 km/h) or lower, this function 
aids the driver in certain traffic 
conditions, as it signals that the vehicle 
ahead is at the minimum distance.

A

2

53

Eight-sensor system with Stop & 
Go Function activated

When the Stop & Go function is 
activated, all sensors are automatically 
activated with the key set to MAR 
(ON) but they are not displayed on the 
instrument panel. When the vehicle 
is put into reverse or an obstacle is 
detected, the corresponding detection 
areas are displayed on the instrument 
panel. When the vehicle is put out of 
reverse, all sensors remain active: the 
rear sensors for approx. 10 seconds 
or until the vehicle exceeds approx. 6 
mph (10 km/h), and the front sensors 
until the vehicles exceeds approx. 6 
mph (10 km/h). At a speed of 6 mph 
(10 km/h) or lower, the front sensor 
detection areas are displayed as soon 
as the system detects an obstacle and 
the beeper sounds. If no obstacle is 
detected for 10 seconds, the displayed 
information disappears. 

Front sensors can be temporarily 
deactivated by pressing pushbutton 
A: the system will sound a beep and 
the pushbutton LED will turn off. 
When pushbutton A is pressed again, 
the sounding of a beep and the LED 
turned on will alert the driver that the 
sensors are now active again.

Eight-sensor system with Stop & 
Go function deactivated

With the Stop & Go function 
deactivated by the Multi Media 
System, the rear sensor activation/
deactivation operating logic remains 
unchanged. For the front sensors, the 
Stop & Go function signal status will 
not change if pushbutton A is pressed, 
and the front sensors will be active 
and displayed on the instrument 
panel as long as vehicle speed is 6 
mph (10 km/h) or lower. When the 
vehicle goes over this speed but then 
slows to 6 mph (10 km/h) or lower, 
the sensors will not be activated. To 
reactivate them, press pushbutton A.

WARNING: Front sensors are activated 
only when the LED on pushbutton A is 
on. In addition, the system will ignore 
the pressing of pushbutton A when 
vehicle speed is over 6 mph (10 km/h).