2021 NISSAN GT-R brake

Rattles from brake pads and creaks
during braking
The high performance brake system of
vehicles equipped with the NCCB (NISSAN
Carbon Ceramic Brake) has more clear-
ance between its brake pad and brake
caliper than regular vehicles, and it uses a
large brake pad to ensure stable brakingperformance under a wide range of driv-
ing conditions such as extremely high
temperature areas or low temperature
areas like snow-covered roads. Accord-
ingly, you may hear light rattles from the
brake pad area when driving over a step,
which is not a malfunction. In addition,
you will hear creaks because of the
characteristics of the material for the disc
rotor. These creaks reduce with time and
wear.
Never park your vehicle for a long time
with the brake system wet.
The materials used for the brake disc
rotor and brake pads for specified NCCB
(NISSAN Carbon Ceramic Brake) are dif-
ferent from those used for the standard
brake system in GT-R. The rotor and pads
will be protected from adhesion caused
by rusting. However, never park your
vehicle for a long time with the brake
system wet. This helps maintain the brake
disc rotor and brake pads for a long time
and prevents an influence on the material
composition of the carbon ceramic rotor
and deterioration in the joint of brake disc
rotor’s full floating structure. Especially
during winter, be sure to park your vehicle
with the brake disc rotor and pads dry to
prevent them from being frozen and
damaged in below freezing temperature
conditions. The carbon ceramic brake forGT-R includes air bubbles in the rotor and
pads. Note that leaving them in the wet
condition tends to cause adhesion due to
freezing.
.
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 vehi-
cle.
These sounds are normal. The noise is
caused when the brake pads absorb
moisture, 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
braking, especially on a curve at a
low speed, or
— When the brake rotors have circular scores with the brake temperature
high.
. The NCCB (NISSAN Carbon Ceramic
Brake) causes more screeching noise
in cold weather conditions than in
normal weather conditions.
GT-R Overview
GTR-29

to
position 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
orposition. 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
position may result in shift shock and jerkiness when starting or shifting.
.
The quickest shifting in the R mode with the transmission in the
position 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.

NOTICE
.When the temperature of the
engine coolant and transmission
oil is high or low, the function
cannot be used. The temperature
range in which the R mode start
function can be used:
— Engine coolant: 140°F - 212°F
(60°C - 100°C)
— Transmission oil: 140°F - 266°F (60°C - 130°C)
. If the R mode start function is
used 4 times consecutively, the
function may be disabled and
cannot be turned on to protect
the vehicle system. While the function is disabled, the warning
light illuminates. When the warn-
ing light illuminates, perform cool
down driving. (
“Cool down”
page GTR-14) When the warning
light turns off, the function can be
used again.
. The performance of start may
vary depending on the amount
of wheel spin ,or increase and
decrease of the engine output in
response to the outside tempera-
ture. (This vehicle was set up
according to the road surface
conditions of the straight sec-
tions of the Sendai Highland Ra-
ceway course in Japan at 59°F
(15°C).)
. For safety reasons, VDC control
may activate automatically when
driving on a slippery road surface,
such as a wet road, in order to
apply the brakes or limit the
engine output.
. Frequent use of the R mode start
function increases the load on
the powertrain related parts such
as the clutch and transmission
compared to normal driving. In
particular, the clutch will wear out
Starting and driving
5-33
R MODE START FUNCTION

2. Accelerate your vehicle to the desiredspeed, push the SET/COAST switch
and release it. (The SET indicator will
illuminate in the meter.) Take your
foot off the accelerator pedal. Your
vehicle will maintain the set speed.
NOTE:
If the vehicle speed reaches approxi-
mately 3 MPH (5 km/h) over the set
speed, the set speed on the vehicle
information display blinks.Passing another vehicleTo pass another vehicle, depress the
accelerator pedal. When you release the
pedal, the vehicle will return to the pre- viously set speed.
Increasing the set vehicle speedTo reset at a faster cruising speed, use
one of the following methods:
.
Depress the accelerator pedal. When
the vehicle attains the desired speed,
push and release the SET/COAST
switch.
. Push and hold the RESUME/ACCELER-
ATE switch. When the vehicle attains
the speed you desire, release the
switch.
. Push and then quickly release the
RESUME/ACCELERATE switch. Each
time you do this, the set speed will
increase by about 1 MPH or 1 km/h.Decreasing the set vehicle speedTo reset at a slower cruising speed, use
one of the following methods:
.Lightly tap the brake pedal. When the
vehicle attains the desired speed,
push and release the SET/COAST
switch.
. Push and hold the SET/COAST switch.
Release the switch when the vehicle
slows down to the desired speed.
. Push and then quickly release the
Starting and driving
5-37

. The SET
indicator will turn off.
. Tap the brake pedal. The SET
indicator will turn off.
. Turn the MAIN switchoff. Both the
CRUISE indicator and SET indicator will
turn off. NOTE:
.
If cruise control was canceled by
pressing the cancel switch or by
depressing the brake pedal, the
system changes to standby status.
. If you depress the brake pedal while
pushing the RESUME/ACCELERATE
or SET/COAST switch and reset at
the cruising speed, the cruise control
will be deactivated. Turn the MAIN
switch off once and then turn it on
again.
Under the following conditions, cruise
control will be automatically canceled.
. Vehicle speed drops to below approxi-
mately 19 MPH (30 km/h).
. Vehicle speed drops to more than
approximately 8 MPH (13 km/h) below
the set vehicle speed.
. The shift lever is moved to a position
other than

NOTICE
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.
The hill start assist system automatically
keeps the brakes applied to help prevent
the vehicle from rolling backwards in the
time it takes the driver to release the
brake pedal and apply the accelerator
when the vehicle is stopped on a hill.
Hill start assist will operate automatically
under the following conditions:
. The shift lever is moved to a forward
or reverse position.
. The vehicle is stopped completely on a
hill by applying the brake.
The maximum holding time is 2 seconds.
After 2 seconds the vehicle will begin to
roll back and hill start assist will stop operating completely.
Hill start assist will not operate when the
shift lever is moved to the
or
position
or on a flat and level road.
NOTE:
This system does not function when the
Vehicle Dynamic Control VDC) system
warning appears on the vehicle infor-
mation display located in the tach-
ometer. (
“Vehicle Dynamic Control
(VDC) system warning” page 2-40)Starting and driving
5-39
HILL START ASSIST SYSTEM

position. Failure
to do so could cause the vehicle
to move unexpectedly or roll
away and result in an accident.
. Make sure the shift lever has
been pushed as far forward as it
can go and cannot be moved
without depressing the foot
brake pedal.
. Follow the instructions below
when parking the vehicle to help
prevent the brake rotor and
brake pads from rusting to-
gether. Failure to follow the in-
structions 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 re-
duce the effectiveness of the
brake system which could cause
a collision, serious personal injury
or death. (for models without
NCCB (NISSAN Carbon Ceramic
Brake) package)
PARKING/PARKING ON HILLS

position.
3. To help prevent the vehicle from roll- ing into the street when parked on a
sloping drive way, it is a good practice
to turn the wheels as illustrated.
.
HEADED DOWNHILL WITH CURB:Turn the wheels into the curb and
move the vehicle forward until the
curb side wheel gently touches the
curb.
.
HEADED UPHILL WITH CURB:Turn the wheels away from the
curb and move the vehicle back
until the curb side wheel gently
touches the curb.
.
HEADED UPHILL OR DOWNHILL, NO
CURB:Turn the wheels toward the side of
the road so the vehicle will move
away from the center of the road if
it moves.
4. Push the ignition switch to the LOCK position.
For models without NCCB (NISSAN Car-
bon Ceramic Brake) package:
The GT-R uses brake pad materials that
have high metallic content. The brake pad
material helps maintain braking perfor-
mance in a wide range of weather and driving conditions.
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
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 wash-
ing 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
seconds without 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.
It is recommended you contact a GT-R
certified NISSAN dealer if the brake pads
and brake rotor have rusted together.
For models with NCCB (NISSAN Carbon
Ceramic Brake) package:
(
“NCCB (NISSAN Carbon Ceramic
Brake)” page 8-20)
Starting and driving
5-47