brakes NISSAN GT-R 2014 R35 Owners Manual

Page 10 of 354

The GT-R is NISSAN’s first supercar category
vehicle. The GT-R is equipped with special
systems. These systems are different than those
used on conventional vehicles to allow for the
high performance driving characteristics of this
vehicle. Your vehicle should be maintained by a
GT-R certified NISSAN dealer. Special skills,
knowledge and equipment are necessary to
properly maintain your GT-R.
If your vehicle is equipped with TRACK PACK
option, read the relevant information later in this
section.
WARRANTY INFORMATION
Please read this Owner’s Manual carefully,
together with your Warranty Information Booklet
which describes a number of express limitations,
exclusions and ways to void your warranty for
failing to follow the instructions contained in this
Owner’s Manual, including, but not limited to:
.Failure to use proper parts, fuel and fluids,
. Driving with the VDC off,
. Racing,
. Any competitive driving of any sort whatso-
ever,
. Use on a track or driving on any airstrip,
. Modifications, including adding/replacing, reprogramming, attempting to reprogram,
altering, disconnecting any computer, con-
trol unit or electronic modules,
. Deleting any or all stored information in any
computer, control unit or electronic module
including VSDR,
. Failure to have required GT-R Performance
Optimization Services performed.
In addition, see your tire warranty for specific
limitations or exclusions for operating summer
tires below −208C(−48F) .
MAINTENANCE INFORMATION
.Special skills, knowledge and equipment are
necessary to properly inspect and adjust the
GT-R engine, transmission, suspension and
brakes to maintain performance. A GT-R
certified NISSAN dealer has the GT-R
certified technical staff and the special
equipment to properly maintain your GT-R.
. 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 NISSAN
dealer. Make sure the specified fluids and
parts are used when the maintenance is
performed. NISSAN also recommends the
replacement of parts such as brakes should be performed by a GT-R certified NISSAN
dealer.
GT-R OverviewGTR-3
GT-R SPECIFIC INFORMATION

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GTR-6GT-R Overview
SUSPENSION
Genuine GT-R special suspension
Use only genuine GT-R special suspension
components.
Using non-genuine GT-R suspension compo-
nents can affect vehicle performance and may
cause body damage 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 suspension that optimizes perfor-
mance 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-resis-
tance.
Using non-genuine GT-R brake pads or rotors
can affect vehicle braking performance and the
operation of the ABS and VDC system.
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 maintain maximum brake perfor-
mance.
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 necessary.
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 performance
driving. In these cases it may be necessary to
replace the disc rotors or brake pads depending
on the condition of the crack. Contact a GT-R
certified NISSAN dealer for replacement.
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.

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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 balanced. Additionally, the wind
tunnel was used to help make sure cool air flows
to the brakes, radiator and other components.
Additions of non-genuine GT-R specific acces-
sory 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 perfor-
mance 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. Instal-
ling 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 spoiler 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 systems.
NOTICE
Modifications to exterior parts may
affect engine and transmission cooling
performance which can increase the
temperature in the engine compart-
ment. 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 parts has a special coating to
enhance the feel of the material.
NOTICE
.Do not use chemical agents (for
example: wax, coating agent, com-
pound agent, etc.) on the dry carbon
fiber parts because they can da-
mage 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 ex-
tended periods of time may cause
discoloration and deterioration.
NISSAN recommends that you do
not store the vehicle in direct sun-
light to protect the rear spoiler.
NOTE:
The surfaces of the dry carbon fiber parts
are lightly coated like a race car so that
you can feel the proper texture of real
carbon, which may feel rough. This is
normal.
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the wheels. The tire may slip on the wheel if
the vehicle is driven in these conditions
before 48 hours have passed. If the tire slips
on the wheel, the wheel/tire assembly will be
out of balance and will require rebalancing.
Brakes
The information and specifications in this
section apply only when engaging in
performance driving.
.Check for the heat deterioration of the
brakes and parts around the brakes.
. It is recommended that you remove air from
the brake system after any of the following:
— When engaging in high performance
driving for the first time after purchasing
a new vehicle.
— After replacing the brake fluid.
— When engaging in high performance driving for a sustained period of time. It
is recommended that bleeding the brake
be performed when the brake calipers
are hot (about 2128F (1008C)) .
Brake pad:
NISSAN recommends adding an additional
cross spring to the front calipers before enga-
ging in performance driving. The additional
spring reduces brake pad movement resulting from cornering forces and will reduce the stroke
of the brake pedal. Contact a GT-R certified
NISSAN dealer to purchase the spring and
arrange installation. If a cross spring is added, a
clattering or squeaking sound may be heard on
rare occasions.
Brake pad break-in procedure:
NISSAN recommends that a special brake pad
break-in procedure be performed before enga-
ging in performance driving. Contact a GT-R
certified NISSAN dealer for details.
INSPECTION AND ADJUSTMENTS
AFTER DRIVING
The information and specifications in this
section apply only when engaging in
performance driving.
NOTICE
At the completion of performance driv-
ing, all fluid and other adjustments
should be returned to the normal fluid
specifications as shown in the “Main-
tenance and do-it-yourself” section of
this manual.
Fluids
The information and specifications in this
section apply only when engaging in
performance driving.
.
Check the engine, transmission, differential
and under the vehicle for oil and coolant
leaks.
. Check the fluid levels and adjust as neces-
sary using the specified fluid as described
under the conditions listed in this section.
(
“Recommended fluids and mainte-
nance interval” page GTR-20) If you do not
drive under the conditions listed, refer to the
2014 NISSAN Service and Maintenance
Guide.
. When changing fluids, be sure to use the
specified fluids as described in this Owner’s
manual. (
“Capacities and recom-
mended fuel/lubricants” page 9-2)
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Suspension and wheel alignment
.Check the steering and suspension system
and other links for loose and/or damaged
parts.
. Measure and adjust the wheel alignment.
Contact a GT-R certified NISSAN dealer to
adjust the wheel alignment to the recom-
mended setting for normal driving.
Wheels and tires
.Check tire wear and cracking.
. Inspect the tire side wall for damage.
. Check the tire pressure and adjust the
pressure as necessary when the tires are
cold. (
“Wheels and tires” page GTR-
17) If you do not drive under the conditions
listed in this section, see (
“Wheels and
tires” page 8-32)
. Check that the wheel nuts are not stripped.
Check if there is no deformation on the
contact surface of the wheel nuts.
. Make sure the wheel nuts are tight.
(
“Wheels and tires” page 8-32)
. Make sure the drive shaft nuts are tight.
. Check wheel hub run out and that the wheel
rotates smoothly without any friction. Check
these with the tires removed whenever an inspection is performed with the vehicle
jacked up.
. Make sure the tire has not slipped on the
wheel causing the assembly to be out of
balance. The reference marks on the tire and
wheel should be aligned. If the reference
marks are not aligned, the tire has slipped on
the wheel. Have the wheels/tires reba-
lanced. Make sure the old reference marks
are erased and new reference marks are
applied to the wheel and tire. When instal-
ling new tires on the wheels, make sure new
reference marks are applied to the wheels
and tires. (
“Wheels and tires” page
GTR-17)
. Make sure that the TPMS sensor installation
nuts and the sensor valve are tight and there
is no nitrogen leak.
Brakes
.Check for the heat deterioration of the
brakes and parts around the brakes.
. Check the condition of the brake pads and
disc rotors and replace them as necessary.
Engine and powertrain
.Check the engine, transmission, differential
and under the vehicle for oil and coolant leaks.
. Inspect the area surrounding the catalytic
converter for heat deterioration.
. Inspect and confirm the clearance between
the exhaust finisher and rear bumper is more
than 0.24 in (6 mm) (up/down) and more
than 0.20 in (5 mm) (left/right) .
. The clutch clearance and shift fork position
may need to be adjusted.
. Inspect the dust boot of the drive shaft
universal joint for cracks or damage.
. Check that there is no abnormal noise,
vibrations or warning lights illuminated when
making tight turns at slow speed (for tight
corner braking phenomenon) .
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1588F (708C) , drive the vehicle until it reaches
normal operating temperature. If the temperature
is higher than 2308F (1108C), perform cool-
down driving procedure. (
“Cool down”
page GTR-13) When the temperature of the
engine coolant is between 1588F (708C) and
2308F (1108C) , the engine output returns to
normal.
DISTORTION OF REAR SPOILER
When the vehicle is parked in direct sunlight on
a hot day, the center of the rear spoiler may
become distorted. This is normal. When the
surface temperature of the rear spoiler is
reduced, the shape of the spoiler should return
to normal.
UNEVEN WEAR OF TIRES
The GT-R is equipped with high performance,
low profile, run-flat tires that are optimized for
performance and handling. The life of these tires
will be less than those of tires installed on a
typical vehicle, and you are likely to experience
uneven tire wear and tire noise regardless of the
type of tire used.
NOISES ARE HEARD WHILE DRIV-
ING
. The GT-R brake pads use material that
provides a high amount of braking power
even in high temperatures. This material can
cause an intermittent screeching noise just
before the vehicle comes to a stop when the
brakes are gently applied. The noise de-
creases as the brake pads wear. However,
the additional brake pad break-in or repla-
cing the cross spring may decrease the
noise. Contact a GT-R certified NISSAN
dealer.
. A screeching noise may be heard when the
brake pedal is depressed:
— When driving the vehicle for the first time
in the morning,
— After leaving the vehicle parked for extended periods of time, or
— When the vehicle is damp following rain showers or washing the vehicle.
These sounds are normal. The noise is
caused when the brake pads absorb moist-
ure, and the noise stops after the brake is
applied several times.
. A screeching noise may also be heard when
the brake pedal is depressed: — When repeatedly applying gentle brak-
ing, especially on a curve at a low speed,
or
— When the brake rotors have circular scores with the brake temperature high.
WARNING
Follow the instructions below when
parking the vehicle to help prevent the
brake rotor and brake pads from rust-
ing together. Failure to follow the
instructions could cause the rotor and
pads to rust together. If the rotor and
pads rust together, there may be a
popping noise and some vibration
when the vehicle is driven, a wheel
may not roll correctly, or the brake pads
could be damaged. If the pads are
damaged, this may reduce the effec-
tiveness of the brake system which
could cause a collision, serious perso-
nal injury or death.
. The GT-R uses brake pad materials that
have high metallic content. The brake pad
material helps maintain braking performance
in a wide range of weather and driving
conditions.
GT-R OverviewGTR-25

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GTR-26GT-R Overview
For the first 3,000-6,000 miles (5,000-
10,000 km) of the vehicle’s service life,
and for the first 3,000-6,000 miles (5,000-
10,000 km) after a brake replacement, the
brake pad to brake rotor clearance is very
small. When parking, apply the parking
brake and move the shift lever to the
&P
position. Idle the engine for more than 20
seconds without depressing the brake
pedal. This allows the brake pads to move
away from the rotor so the pad does not
contact the rotor.
Additionally, the brakes must be dry before
parking the vehicle after driving on wet roads
or after washing the vehicle. If the roads are
wet, lightly apply the brakes for a short
distance before parking the vehicle to dry
the brakes. After washing the vehicle, dry the
brakes by driving on a dry road for a few
miles and apply the brakes normally based
on traffic and road conditions.
The metallic brake pads and brake disc rotor
may rust together when the brakes are not
applied:
— If the vehicle is not idled for 20 secondswithout the brakes applied, or if the
brakes are applied when the vehicle is
shut off, the rotor and pads can rust
together, even when the brake pads are dry.
— If the brakes are wet when the vehicle is parked and the parking brake is applied
for a long time.
— The hill start assist system can apply the brakes even if the brake pedal is not
depressed. The brake pads and rotors
can rust together if the parking proce-
dure previously described is not fol-
lowed.
Contact a GT-R certified NISSAN dealer if
the brake pads and brake rotor have rusted
together.
NOTICE
To help reduce the possibility of the
rotors and brake pads rusting:
Have the brake pads and/or rotors
quenched when the brake pads are
replaced. For detailed information
about quenching, contact a GT-R certi-
fied NISSAN dealer.
After quenching the brake pads and/or
rotors, apply a brake of 0.5G to stop the
vehicle 6-7 times at least once a week
in a safe location. G-force can be
checked on the multi function display. Refer to the separate Multi Function
Display Owner’s Manual.
. To maintain steady braking performance in
both extremely high and low temperatures,
the gap between the brake pad and caliper
is larger than normal and large-size brake
pads are used. When driving over a bump, a
light rattling sound may be heard from the
brake pad. This does not indicate that there
is a malfunction.
. When the brake disc rotor undergoes
thermal expansion, a ticking noise may be
heard from the engaging portion of the
wheel and the brake disc rotor. This does
not indicate that there is a malfunction. The
noise will reduce when the temperature
decreases.
. In addition to noise resulting from uneven
tire wear discussed in the previous section,
the GT-R tires are more rigid than a typical
passenger car tire and are made from a
specially formulated rubber to maximize the
vehicle’s performance capabilities. These
characteristics cause the GT-R tires to have
more road noise than a typical passenger
car tire. This road noise is normal.

Page 34 of 354

.Due to the performance capabilities and
requirements of the GT-R, the sequential 6-
speed dual clutch transmission is unlike a
typical automatic transmission. You will likely
hear mechanical sounds from the transmis-
sion, particularly at slow speeds and at idle.
This condition is normal.
BRAKE SYSTEM INFORMATION
Cracks on brake pad
The friction material of the GT-R disc brake pad
is bonded to the pad backing plate more
strongly than conventional brake pads to with-
stand the high brake temperatures. The friction
material and backing plate expand due to heat at
different rates. Some cracks may be on the
surface of the friction material due to the
differences in expansion rates and the strong
bond between the friction material and backing
plate. The cracks do not indicate the brake pads
need to be replaced. However, depending on
the condition of the cracks, the pads may need
to be replaced. Contact a GT-R certified
NISSAN dealer.
Cracks on the disc rotors
When the brake is repeatedly applied at high
loads during the cold season, small cracks of
approximately 0.12 in (3 mm) long may appear
around the cross drilled holes
*A. This is due to
the temperature differential that occurs because
the surfaces of the disc rotors become hot while
the inside of the rotor is still cold. However, this
poses no problem in terms of brake perfor-
mance, and does not indicate a malfunction. The
brakes do not need to be replaced.
However, if the cracks extend to 0.16 in (4 mm)
or longer after repeated application of the
brakes at high loads during high performance driving, or through the continued use of the
brakes, the disc rotors must be replaced.
Brake dust
This vehicle is equipped with high performance
brakes, and the characteristics of the brake pad
material may cause more brake dust than other
vehicles. NISSAN recommends a wheel coating
that helps prevent the brake dust from sticking
to the wheels. Contact a GT-R certified NISSAN
dealer for more details.
DRY FIBER CARBON PARTS (if so
equipped)
Roughness or uneven surfaces of dry fiber
carbon parts and fiber twists
The surfaces of the dry fiber carbon parts are
lightly coated like a race car so that you can feel
the proper texture of real carbon, which may feel
rough. This is normal.
GT-R OverviewGTR-27

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TRANSMISSION OPERATION CHARACTERISTICS
MechanismOperation characteristics
Base Manual transmission
.The GT-R transmission design is different from transmissions used in conventional passenger cars. The GT-R uses a transmission gear
design, light flywheel and a dry sump lubrication system to provide maximum vehicle performance. Because the GT-R Transmission design
is different, noises may be louder. When the transmission temperature is high, rattling, shaking and jarring noises may be heard.
.Clattering noises may be heard while shifting..Appropriate gaps are provided between gears to achieve smooth gear rotation and steady tooth surface lubrication under the high-load
driving condition. However, this causes a rattling noise.
.If the shift lever is moved from&Rto&A↔&Mposition, or&A↔&Mto&Rposition before the vehicle stops, you may not be able to shift gear
or it may take longer to shift gear. Make sure to depress the brake pedal and check that the vehicle has stopped before shifting.
Multiple disc wet clutch
.When stopping the vehicle with the shift lever in the&Ror&A↔&Mposition, be sure to firmly depress the brake pedal. The vehicle may
slowly move if the brake pedal is not depressed.
.Avoid depressing the brake and accelerator pedals at the same time. Depressing the brake and accelerator pedals at the same time could
cause the clutch to overheat and accelerate deterioration.
.When the vehicle is stopped on a hill, do not hold the vehicle in place by depressing the accelerator pedal. Doing so may cause the clutch
to overheat and result in transmission damage. Use the brakes to prevent the vehicle from moving.
Electronic oil pressure
control The following conditions are caused due to changes in fluid viscosity as a result of temperature changes.
.When the transmission oil is extremely cold or extremely hot, the transmission may feel like it is slipping during shifts or there may be hard
shifts. This is normal. Transmission shifting should return to normal when the transmission oil returns to normal operating temperatures.
.When the transmission oil temperature is extremely cold, the time required to run a system check may increase. During the system check,
the shift lever must stay in the&Pposition. Move the shift lever after turning off the system check display. Also, it is normal to hear clicking
noises during the transmission systems check.
Changing modes
.The higher shift speeds in the&Mposition may result in shift shock and jerkiness when starting or shifting..The quickest shifting in the R mode with the transmission in the&Mposition is available when the engine speed is high. However, the
transmission may shift more slowly when the engine speed is low.
Mechanical Limited Slip
Differential (LSD) If the vehicle accelerates from a stop with the steering wheel turned half a turn in cold temperatures, the inner wheel tire may slip and some
noise or vibration may be heard. This phenomenon occurs because the viscosity of the differential oil becomes thicker and the Limited Slip
Differential (LSD) operates with increasing load. When the steering wheel is returned to the straight ahead position or the differential oil warms
up, the noise and vibration decrease.
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Parking brake reminder chime
A chime will sound if the vehicle speed is above
4 MPH (7 km/h) with the parking brake applied.
Stop the vehicle and release the parking brake.
Reverse reminder chime (if so
equipped)
The chime will sound if the shift lever is in the&R
position while the ignition switch is in the ON
position.
This is not a chime to remind people outside the
vehicle.
Be sure to move the shift lever out of the
&R
position after driving in reverse.
Brake pad wear warning
The disc brake pads have audible wear warn-
ings. When a brake pad requires replacement, it
will make a high pitched scraping sound when
the vehicle is in motion. This scraping sound will
first occur only when the brake pedal is
depressed. After the wear of the brake pad is
increased, the sound will be heard all the time
even if the brake pedal is not depressed. Have
the brakes checked as soon as possible if the
warning sound is heard.
WARNING
When the warning light illuminates or
blinks and a warning is displayed,
promptly take the appropriate action.
Ignoring the warning may result inmalfunctions and accidents.
When the items mentioned below are detected
the master warning light
*1illuminates and the
warning is displayed on the vehicle information
display
*2. A chime also sounds.
Instruments and controls2-33
WARNING DISPLAY

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