Nissan GT-R (2007-2014 year). INSTRUMENT PANEL / LAN SYSTEM / MAINTENANCE. Service Manual - part 3

 

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Nissan GT-R (2007-2014 year). INSTRUMENT PANEL / LAN SYSTEM / MAINTENANCE. Service Manual - part 3

 

 

LAN-8

< PRECAUTION >

[CAN]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000009163492

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Battery Service

INFOID:0000000009163493

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Precaution for Working Range at a Regular Dealership

INFOID:0000000009188120

CAUTION:

The service items unmentioned on this manual are recommended to be performed by a GT-R certified
NISSAN dealer. Because those service items require special equipment and a GT-R certified technical
staff who completed special training.

Precautions for Trouble Diagnosis

INFOID:0000000009163494

CAUTION:

• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.
• Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when

checking the harness. 

Revision: 2012 November

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LAN

PRECAUTIONS

LAN-9

< PRECAUTION >

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Precautions for Harness Repair

INFOID:0000000009163495

• Solder the repaired area and wrap tape around the soldered area.

NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).

• Bypass connection is never allowed at the repaired area.

NOTE:
Bypass connection may cause CAN communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost. 

• Replace the applicable harness as an assembly if error is detected on the shield lines of CAN communica-

tion line.

SKIB8766E

SKIB8767E

Revision: 2012 November

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LAN-10

< BASIC INSPECTION >

[CAN]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Interview Sheet

INFOID:0000000009163496

SKIB8898E

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LAN

CAN COMMUNICATION SYSTEM

LAN-11

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

CAN COMMUNICATION SYSTEM

CAN System Specification Chart

INFOID:0000000009163497

Determine CAN system type from the following specification chart.

CAN Communication Signal Chart

INFOID:0000000009163498

Refer to 

LAN-6, "How to Use CAN Communication Signal Chart"

 for how to use CAN communication signal

chart.
NOTE:
Refer to 

LAN-7, "Abbreviation List"

 for the abbreviations of the connecting units.

T: Transmit

R: Receive

Body type

Coupe

Axle

AWD

Engine

VR38DETT

Transmission

Dual clutch transmission

Brake control

VDC

CAN system type

1

Signal name/Connecting unit

EC

M

4WD

BC

M

E-SUS

AV

HV

AC

M&A

ST

RG

TP

MS

TCM

ABS

IP

DM

-E

A/C compressor feedback signal

T

R

A/C compressor request signal

T

R

Accelerator pedal position signal

T

R

R

R

R

ASCD status signal

T

R

R

Cooling fan speed request signal

T

R

Engine and transmission integrated con-
trol signal

T

R

R

T

Engine coolant temperature signal

T

R

R

R

T

Engine estimated torque signal

T

R

Engine speed signal

T

R

R

R

R

R

Engine status signal

T

R

R

R

Fuel consumption monitor signal

T

R

R

T

Malfunctioning indicator lamp signal

T

R

Power generation command value signal

T

R

AWD clutch high temperature warning dis-
play signal

T

R

AWD signal

T

R

AWD system warning display signal

T

R

AWD warning lamp signal

T

R

Front/rear tire size discrepancy warning 
display signal

T

R

Front torque distribution rate signal

T

R

R

T

Revision: 2012 November

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LAN-12

< SYSTEM DESCRIPTION >

[CAN]

CAN COMMUNICATION SYSTEM

Buzzer output signal

T

R

Buzzer request signal

T

R

R

T

Daytime running light request signal

T

R

Door switch signal

T

R

R

Front wiper request signal

T

R

High beam request signal

T

R

R

Horn reminder signal

T

R

Ignition switch ON signal

T

R

R

T

Key warning lamp signal

T

R

Low beam request signal

T

R

Meter display signal

T

R

Position light request signal

T

R

R

Rear window defogger control signal

T

R

R

R

T

Run-flat tire warning display signal

T

R

R

T

Sleep wake up signal

T

R

R

Starter control relay signal

T

R

Starter relay status signal

T

R

R

T

Steering lock relay signal

T

R

R

T

Theft warning horn request signal

T

R

Tire pressure warning lamp signal

T

R

R

R

R

T

Trunk switch signal

T

R

Turn indicator signal

T

R

A/C switch operation signal

T

R

Rear window defogger switch signal

R

T

Voice recognition signal

T

R

A/C switch signal

R

T

Blower fan motor switch signal

R

T

Air-Fuel ration signal

R

T

Boost pressure signal

R

T

Distance to empty signal

R

T

Engine oil pressure signal

R

T

Engine oil temperature signal

R

T

Fuel level sensor signal

R

T

Odometer signal

R

T

Parking brake switch signal

R

R

T

Seat belt buckle switch signal

R

T

Signal name/Connecting unit

ECM

4WD

BCM

E-S

U

S

AV

HV

AC

M&A

STRG

TPMS

TCM

ABS

IPDM

-E

Revision: 2012 November

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LAN

CAN COMMUNICATION SYSTEM

LAN-13

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Shift position signal

R

T

R

*

R

T

R

Sleep-ready signal

R

T

R

T

Transmission oil pressure signal

R

T

R

T

Transmission oil temperature signal

R

T

R

R

T

Vehicle speed signal

R

R

R

T

R

R

R

R

R

R

R

R

R

R

R

T

Wake up signal

R

T

Steering angle sensor signal

R

R

R

T

R

Low tire pressure warning display signal

R

T

Tire pressure monitoring system warning 
display signal

R

T

Tire pressure signal

R

T

Input shaft revolution signal

R

T

Output shaft revolution signal

R

T

SAVE mode control signal

R

R

T

Shift lever position check display signal

R

T

Shift lever position warning display signal

R

T

Snow mode switch signal

R

T

Transmission clutch high temperature 
warning display signal

R

T

Transmission oil high temperature warn-
ing display signal

R

T

Transmission self-diagnosis signal

R

T

Transmission system check display signal

R

T

Transmission system warning display sig-
nal

R

T

Transmission warning light signal

R

T

ABS malfunction signal

R

T

ABS operation signal

R

R

T

ABS warning display signal

R

T

Brake pressure control signal

R

R

T

Brake warning lamp signal

R

T

Decel G signal

R

R

T

Side G sensor signal

R

R

R

R

T

Stop lamp switch signal

R

T

VDC OFF indicator lamp signal

R

T

VDC malfunction signal

R

T

VDC operation signal

R

T

VDC-R mode signal

R

T

VDC warning display signal

R

T

Signal name/Connecting unit

ECM

4WD

BCM

E-S

U

S

AV

HV

AC

M&A

STRG

TPMS

TCM

ABS

IPDM

-E

Revision: 2012 November

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LAN-14

< SYSTEM DESCRIPTION >

[CAN]

CAN COMMUNICATION SYSTEM

*: P, N position signal only

NOTE:
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.

VDC warning lamp signal

R

T

Yaw rate sensor signal

R

R

T

Front wiper stop position signal

R

T

High beam status signal

R

T

Hood switch signal

R

T

Low beam status signal

R

T

Push-button ignition switch status signal

R

T

Steering lock unit status signal

R

T

Signal name/Connecting unit

ECM

4WD

BCM

E-S

U

S

AV

HV

AC

M&A

STRG

TPMS

TCM

ABS

IPDM

-E

Revision: 2012 November

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LAN

CAN COMMUNICATION SYSTEM

LAN-15

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

CAN COMMUNICATION SYSTEM

Component Parts Location

INFOID:0000000009163499

1.

BCM M122

2.

ECM M107

3.

E-SUS control unit M110

4.

IPDM E/R E6

5.

AV control unit M203

6.

A/C auto amp. M66

7.

ABS actuator and electric unit (con-
trol unit) E41

8.

Data link connector M24

9.

Combination meter M53

10. Low tire pressure warning control 

unit M14

11.

Steering angle sensor M37

12. TCM B45

13. Air bag diagnosis sensor unit M157

14. AWD control unit B213

JPMIA1069ZZ

Revision: 2012 November

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LAN-16

< DTC/CIRCUIT DIAGNOSIS >

[CAN]

CAN COMMUNICATION SYSTEM

Wiring Diagram - CAN SYSTEM -

INFOID:0000000009163500

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRMWD5789GB

Revision: 2012 November

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LAN

CAN COMMUNICATION SYSTEM

LAN-17

< DTC/CIRCUIT DIAGNOSIS >

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Revision: 2012 November

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MA-1

MAINTENANCE

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CONTENTS

MAINTENANCE

PREPARATION ............................................

3

PREPARATION ...................................................

3

Special Service Tool  .................................................

3

Commercial Service Tool  ..........................................

3

FEATURES OF NEW MODEL ......................

4

ABOUT GT-R MAINTENANCE  ...........................

4

Description ................................................................

4

GT-R Special Specification Parts ..............................

4

PERIODIC MAINTENANCE ..........................

8

GENERAL MAINTENANCE  ................................

8

Explanation of General Maintenance  ........................

8

PERFORMANCE OPTIMIZATION SERVICES 

....

10

Explanation of Performance Optimization Servic-
es ............................................................................

10

Sample of GT-R Performance Optimization Ser-
vice Log ...................................................................

11

PERIODIC MAINTENANCE  ...............................

12

Introduction of Periodic Maintenance ......................

12

Schedule 1  ..............................................................

12

Schedule 2  ..............................................................

13

ADDITIONAL MAINTENANCE ITEMS  ..............

16

Description ..............................................................

16

Precautions on Performance Driving  ......................

16

Inspection and Adjustments before Performance 
Driving .....................................................................

17

Inspection and Adjustments after Performance 
Driving .....................................................................

19

RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................

22

Fluids and Lubricants  ..............................................

22

Engine Oil Recommendation  ..................................

22

Anti-Freeze Coolant Mixture Ratio  ..........................

22

ENGINE MAINTENANCE .................................

24

DRIVE BELT  ..............................................................

24

DRIVE BELT : Exploded View .................................

24

DRIVE BELT : Checking ..........................................

24

DRIVE BELT : Tension Adjustment (GT-R certi-
fied NISSAN dealer)  ................................................

24

ENGINE COOLANT  ...................................................

24

ENGINE COOLANT : Inspection  .............................

24

ENGINE COOLANT : Draining  ................................

25

ENGINE COOLANT : Refilling .................................

26

ENGINE COOLANT : Flushing ................................

27

AIR CLEANER FILTER  .............................................

27

AIR CLEANER FILTER : Removal and Installation 

....

27

ENGINE OIL ...............................................................

28

ENGINE OIL : Draining ............................................

28

ENGINE OIL : Refilling  ............................................

28

OIL FILTER  ................................................................

29

OIL FILTER : Removal and Installation  ...................

29

OIL FILTER : Inspection  ..........................................

30

SPARK PLUG  ............................................................

30

SPARK PLUG : Removal and Installation  ...............

30

SPARK PLUG : Inspection  ......................................

30

THROTTLE CHAMBER  .............................................

31

THROTTLE CHAMBER : Inspection  .......................

31

EVAP VAPOR LINES  ................................................

31

EVAP VAPOR LINES : Inspection ...........................

31

CHASSIS MAINTENANCE  ...............................

32

TRANSMISSION OIL  .................................................

32

TRANSMISSION OIL : Inspection  ...........................

32

TRANSMISSION OIL : Draining  ..............................

34

TRANSMISSION OIL : Filling  ..................................

35

TRANSFER FLUID  ....................................................

36

Revision: 2012 November

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MA-2

TRANSFER FLUID : Transfer Fluid ........................

36

FRONT DIFFERENTIAL GEAR OIL: F160A  ............

36

FRONT DIFFERENTIAL GEAR OIL: F160A : In-
spection .................................................................
.

37

REAR DIFFERENTIAL GEAR OIL  ...........................

37

REAR DIFFERENTIAL GEAR OIL : Inspection ......

37

BRAKE LINES AND CABLES ..................................

39

BRAKE LINES AND CABLES : Inspection  .............

39

BRAKE FLUID  ..........................................................

39

BRAKE FLUID : Inspection .....................................

39

BRAKE FLUID : Draining ........................................

40

BRAKE FLUID : Refilling  ........................................

40

DISC BRAKE  ............................................................

40

DISC BRAKE : Inspection  ......................................

40

DISC BRAKE : Front Disc Brake  ............................

41

DISC BRAKE : Rear Disc Brake .............................

41

STEERING GEAR AND LINKAGE  ...........................

41

STEERING GEAR AND LINKAGE : Inspection ......

41

POWER STEERING FLUID AND LINES ..................

41

POWER STEERING FLUID AND LINES : Inspec-
tion .........................................................................
.

41

AXLE AND SUSPENSION PARTS ...........................

42

AXLE AND SUSPENSION PARTS : Inspection  .....

42

DRIVE SHAFT ...........................................................

43

DRIVE SHAFT : Inspection  ....................................

43

BODY MAINTENANCE  .....................................

44

LOCKS, HINGES AND HOOD LATCH  .....................

44

LOCKS, HINGES AND HOOD LATCH : Lubricat-
ing ...........................................................................

44

SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS  ......................................

44

SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS : Inspection .................

44

SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

45

SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

45

DRIVE BELT ..............................................................

45

DRIVE BELT : Drive Belt (GT-R certified NISSAN 
dealer) .....................................................................

45

ENGINE COOLANT  ..................................................

45

ENGINE COOLANT : 
Periodical Maintenance Specification ....................

45

ENGINE OIL  ..............................................................

45

ENGINE OIL : 
Periodical Maintenance Specification ....................

45

SPARK PLUG  ...........................................................

45

SPARK PLUG : Spark Plug  ....................................

45

ROAD WHEEL  ..........................................................

45

ROAD WHEEL : Road Wheel (GT-R certified NIS-
SAN dealer)  ............................................................

45

Revision: 2012 November

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PREPARATION

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< PREPARATION >

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PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000009161741

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

INFOID:0000000009161742

Tool number
(Kent-Moore No.)
Tool name

Description

KV10115801
(J-38956)
Oil filter wrench

Removing and installing oil filter
a: 64.3 mm (2.531 in)

S-NT375

Tool name
(Kent-Moore No.)

Description

Power tool
(

)

Loosening nuts and bolts

Spark plug wrench
(

)

Removing and installing spark plug
a: 14 mm (0.55 in)

PBIC0190E

JPBIA0399ZZ

Revision: 2012 November

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MA-4

< FEATURES OF NEW MODEL >

ABOUT GT-R MAINTENANCE

FEATURES OF NEW MODEL

ABOUT GT-R MAINTENANCE

Description

INFOID:0000000009161743

The GT-R is equipped with some special genuine NISSAN high performance specification parts. These parts
are different from those used on conventional vehicles to allow for the high performance driving characteristics
of the vehicle. The GT-R should be maintained by a GT-R certified NISSAN dealer. 

Special skill, knowledge and equipment are necessary to properly inspect and adjust the GT-R engine, trans-
mission, suspension and brakes to maintain performance. A GT-R certified NISSAN dealer has the GT-R certi-
fied technical staff and the special equipment to properly maintain the GT-R.

The installation/use of parts other than genuine NISSAN parts, fluids and lubricants may cause the vehicle to
malfunction (i.e. cease functioning normally, damage vehicle parts) and result in the vehicle requiring non-war-
ranty protected repairs. NISSAN recommends maintenance items that require the replacement of parts,
engine oil, oil filters and air filters, should be performed by a GT-R certified dealer. Make sure the specified flu-
ids and parts are used when the maintenance is performed. NISSAN also recommends the replacement of
parts such as the brakes should be performed by a GT-R certified NISSAN dealer.

GT-R Special Specification Parts

INFOID:0000000009161744

CAUTION:

Only use the following required fluids and parts in the GT-R to avoid possible vehicle damage.

ENGINE OIL

Mobil 1 (0W-40) (100% synthetic oil)

Mobil 1 (0W-40) (100% synthetic) is the factory fill oil. The VR38 engine with its plasma-sprayed bores was
developed using this oil. NISSAN cannot ensure proper engine operation and durability if other 0W-40 syn-
thetic oil is used. If Mobil 1 (0W-40) is not available, Mobil 1 (10W-40) (100% synthetic) may be used; how-
ever, some performance loss may be noticed. Furthermore, replacement of the engine oil with MOTUL NISMO
COMPETITION OIL type 2193E (5W-40) is recommended for frequent high performance driving opportunities
or when the engine staring ability during cold weather is a concern.
The use of additives, chemical materials or abrasive compounds is prohibited.
The use of additives, chemical materials, abrasive compounds or other high performance engine oils may
cause internal engine damage.

ENGINE OIL MAINTENANCE

• When the vehicle is delivered, the engine oil level is 0.39 in (10 mm) below the H mark on the engine oil dip-

stick for optimum high performance driving. The engine oil can be filled up to the H mark if not engaging in
performance driving.

• Because of the high performance characteristics of the GT-R engine, more frequent oil level inspections are

necessary. Check the oil level every 1,800 miles (3,000 km) and adjust as necessary. Also, change the
engine oil based on the driving conditions.

• Some amount of oil is consumed by your engine under normal operating conditions, and oil consumption by

itself does not necessarily indicate any malfunction.

• For information about the oil replacement intervals for performance driving, refer to the interval for replacing

oil after high performance driving.

Make sure to replace the oil filter when the engine oil is changed.

TRANSMISSION OIL

Genuine NISSAN Transmission oil R35 special (100% synthetic oil)

The GT-R uses a multiple-disc dual wet clutch transmission. The specially developed transmission oil maxi-
mizes the friction characteristics of the clutch and the lubrication of the gear bearings. 
The use of additives is prohibited.
The use of additives or other transmission oil may cause internal transmission or clutch damage.

DIFFERENTIAL OIL (front and rear)

Differential Oil R35 COMPETITION type 2189E

Revision: 2012 November

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ABOUT GT-R MAINTENANCE

MA-5

< FEATURES OF NEW MODEL >

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Use only the Differential Oil R35 COMPETITION type 2189E that can keep the oil temperature low in order to
protect all parts of the differential and maximize the performance of the Limited Slip Differential (LSD).
The use of additives is prohibited.
Using additives or any other than the specified differential oil may cause the oil temperature to increase and
the final drive to be damaged. Also it may cause vibration and adversely the vehicle handling characteristics.

BRAKE FLUID

Genuine NISSAN Brake Fluid R35 Special II

Genuine NISSAN Brake Fluid R35 Special II is the factory fill brake fluid. The Vehicle Dynamic Control (VDC)
unit and other related parts were specially designed for this brake fluid. NISSAN cannot ensure proper opera-
tion of the vehicle if other brake fluid is used.

TIRES AND ROAD WHEELS

Genuine GT-R tires and road wheels

Use only genuine GT-R tires and road wheels.

Tires

The GT-R uses specially designed run-flat tires and matching road wheels. Use of these specially developed
tires and wheels provides the greatest potential for maximum performance.
• Using non-genuine GT-R tires may cause power train system damage if the vehicle is driven in a flat tire sit-

uation, even if run flat tires are used. This may also prevent the vehicle from being stopped safely.

• Using non-genuine GT-R tires may also cause tire failure due to excessive heat buildup caused by tire dis-

tortion while driving.

• Using non-genuine GT-R tires may affect the operation of the VDC system.

Tire replacement:

• When tire replacement is required, replacing tires as a set of four with new tires is recommended. However,

if a tire is punctured or damaged, it may be possible to replace only the damaged tire. Determining whether
one tire or a complete set of tires should be replaced is based on a number of factors including tire wear and
condition.

• The GT-R uses specially designed run-flat tires which have a rigid side wall. Special equipment and proce-

dures are required when replacing these tires.

• Specific tire changing equipment must be used to remove the GT-R tires from the wheel and to install the GT-

R tires onto the wheel. It is only possible to reuse the tires when they have no cracks and/or deformations on
the bead portion of the tire. If the incorrect equipment is used to remove the GT-R tires from the wheel and to
install the GT-R tires onto the wheel, cracks and deformation may occur on the bead portion of the tires
meaning that the tires cannot be reused.

Road wheels

Using non-genuine GT-R wheels may cause the following:
• vehicle vibration
• the tire coming loose from the wheel during a flat tire
• reduced wheel lug nut tightness

SUSPENSION

Genuine GT-R special suspension

Use only genuine GT-R special suspension components.
Using non-genuine GT-R suspension components can affect vehicle performance and may cause body dam-
age when driving depending on the road conditions.

GT-R TRACK PACK option genuine special suspension (if so equipped)

Models with the TRACK PACK option are equipped with specially tuned shock absorbers, springs and suspen-
sion that optimizes performance driving.

BRAKE PAD AND DISC ROTOR

Genuine GT-R brake pads and disc rotors

Use only genuine GT-R brake pads and disc rotors.
This vehicle is equipped with cross-drilled floating rotors and radial-mounted six-piston monoblock calipers.
This helps to achieve excellent stopping performance and fade-resistance.
Using non-genuine GT-R Brake pads or rotors can affect vehicle braking performance and the operation of the
ABS and VDC system.

Revision: 2012 November

2014 GT-R

MA-6

< FEATURES OF NEW MODEL >

ABOUT GT-R MAINTENANCE

Replacement of brake pads and disc rotors

NISSAN generally recommends to replace all four sets of brake pads and disc rotors at the same time to main-
tain maximum brake performance.
However, replacing only the brake pads may be allowed in some cases (four wheels or only front wheels
depending on the conditions). A GT-R certified technician must inspect the vehicle and determine that only the
brake pads need to be replaced. In this case, replacing all brake pads and disc rotors as a set is not neces-
sary.
Note that the replacement of brake pads and the disc rotors as a set on all four wheels should be performed
when a GT-R certified technician determines that this is the correct repair.
If the inside of the disc rotors are cold during the winter and the surface becomes hot due to a heavy force
being applied repeatedly to the brakes, cracks may occur near the coolant hole on the surface of the disc
rotor. Cracks may also occur due to a heavy force being repeatedly applied to the brakes during high perfor-
mance driving. In these cases it may be necessary to replace the disc rotors or brake pads depending on the
condition of the crack.

EXHAUST MUFFLER AND TRUNK CARPET

Genuine GT-R special exhaust muffler and trunk carpet.

Use only the genuine GT-R special exhaust muffler and trunk carpet.
The GT-R exhaust system is designed to provide the maximum vehicle performance and to protect the vehicle
from high exhaust gas temperatures.
If non-genuine GT-R specification parts are used it is possible that the muffler or other exhaust system parts
will deform and cause damage to the underbody. Non-genuine GT-R specification parts can also affect vehicle
performance and possibly lead to turbocharger, engine or power train related parts including transmission,
damage.
Also, do not remove the trunk carpet from the vehicle for any reason. The carpet insulates the vehicle interior
from the heat of the muffler and from the noise of the transmission.

EXTERIOR PARTS (spoiler, etc.)

Do not modify exterior parts.

The GT-R was developed using a special wind tunnel to help make sure the vehicle is aerodynamically bal-
anced. Additionally, the wind tunnel was used to help make sure cool air flows to the brakes, radiator and other
components. Additions of non-GT-R specific accessory exterior parts can change the air flow over and around
the body. This can affect vehicle balance and cooling of various systems.
For example, if the front bumper is modified, there is a possibility that brake cooling performance may be
reduced due to the decrease of the air flow to the brake system.
Use only GT-R special specification parts.

Front bumper

The shape of the bumper helps pull air into the engine compartment through the front wheel housing to cool
the radiator and brakes. Installing an aftermarket bumper may affect the air flow in the engine compartment
and decrease the brake and engine cooling performance. An aftermarket bumper may also change vehicle
balance by reducing front down force.

Rear spoiler

Installing an aftermarket rear wing may change the down force balance between front and rear of the vehicle.
This can affect the handling characteristics of the vehicle and affect the operation of the ABS and VDC sys-
tems.

CAUTION:

Modifications to exterior parts may affect engine and transmission cooling performance which can
increase the temperature in the engine compartment. This can affect the operation or damage parts
located in the engine compartment.

Dry carbon fiber parts (If so equipped)

The dry carbon fiber parts are made using the same composite method used for race cars. The dry carbon
fiber rear spoiler has a special coating to enhance the feel of the material.

CAUTION:

• Do not use chemical agents (for example: wax, coating agent, compound agent, etc.) on the dry car-

bon fiber parts because they can damage the material. When the carbon fiber parts become dirty,
dilute one cap of mild detergent with a bucket of water and use that mixture to clean the carbon fiber
parts. 

• The dry carbon fiber parts may turn yellow due to age deterioration because of the characteristics of

the material. Storing the vehicle outside in direct sunlight for extended periods of time may cause

Revision: 2012 November

2014 GT-R

 

 

 

 

 

 

 

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