wheel NISSAN FRONTIER 2023 Repair Manual

RAB SYSTEM OPERATION
1RAB system warning light and RAB sys-
tem indicator
2Steering-wheel-mounted controls (lef t
side)
3Center display When the shif t lever is in the R (Reverse)
position and the vehicle speed is less than
approximately 9 mph (15 km/h), the RAB
system operates.
If a risk of a collision with an obstacle is
detected when your vehicle is backing up,
the RAB system warning indicator will flash
in the vehicle information display, a red
frame will appear in the center display (for
vehicles with the Intelligent Around View®
Monitor system), and the system will chime
three times. The system will then auto-
matically apply the brakes. Af ter the auto-
matic brake application, the driver must
depress the brake pedal to maintain brake
pressure.
NOTE:
• The brake lights of the vehicle come on
when braking is performed by the RAB
system.
• When the brakes operate, a noise may be heard. This is not a malfunction.
LSD4531
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•Once the automatic brake control
operates, it does not operate again if
the vehicle approaches the same
obstacle.
• The automatic brake control can only
operate for a short period of time.
Therefore, the driver must depress
the brake pedal.
• In the following situations, the RAB
system may not operate properly or
may not function sufficiently:
– The vehicle is driven in bad
weather (rain, fog, snow, etc.).
– The vehicle is driven on a steep
hill.
– The vehicle’s posture is changed
(e.g., when driving over a bump).
– The vehicle is driven on a slippery
road.
– The vehicle is turned sharply by
turning the steering wheel fully.
– Snow chains are used.
– Wheels or tires other than NISSAN
recommended are used.
– The brakes are cold at low ambi-
ent temperatures or immediately
af ter driving has started. –
The braking force becomes poor
due to wet brakes af ter driving
through a puddle or washing the
vehicle.
• Turn the RAB system off in the follow-
ing conditions to prevent the occur-
rence of an unexpected accident
resulting from sudden system op-
eration:
– The vehicle is towed.
– The vehicle is carried on a flatbed
truck.
– The vehicle is on the chassis
dynamometer.
– The vehicle drives on an uneven
road surface.
– The vehicle is towing an object (if
so equipped).
–
Suspension parts other than those designated as Genuine NISSAN
parts are used. (If the vehicle height
or the vehicle body inclination is
changed, the system may not de-
tect an obstacle correctly.)
– If the vehicle is using an accessory
like a bike rack, or cargo carrier
that blocks the sensors. •
Excessive noise (e.g., audio system
volume, an open vehicle window) will
interfere with the chime sound, and it
may not be heard.
SYSTEM MALFUNCTION
If the RAB system malfunctions, it will be
turned off automatically, and the RAB sys-
tem warning light will illuminate and the
warning message “System fault See Own-
er’s Manual” in the vehicle information
display.
Action to take
If the warning light illuminates, park the ve-
hicle in a safe location, turn the engine off,
and restart the engine. If the warning light
continues to illuminate, have the RAB sys-
tem checked. It is recommended that you
visit a NISSAN dealer for this service.
NOTE:
If the RAB system cannot be operated
temporarily, the RAB system warning
light blinks.
5-80Starting and driving

3. AEB with Pedestrian Detection systemwarning light
The AEB system operates at speeds above
approximately 3 mph (5 km/h). For the pe-
destrian detection function, the system
operates at speeds between6–37mph(10
– 60 km/h).
If a risk of a forward collision is detected,
the AEB with Pedestrian Detection system
will firstly provide the warning to the driver
by flashing the vehicle ahead detection in-
dicator (yellow) in the vehicle information
display and providing an audible alert. If the
driver applies the brakes quickly and force-
fully af ter the warning, and the AEB with
Pedestrian Detection system detects that
there is still the possibility of a forward col-
lision, the system will automatically in-
crease the braking force.
If the driver does not take action, the AEB
with Pedestrian Detection system issues
the second visual (flashing) (red and white)
and audible warning. If the driver releases
the accelerator pedal, then the system ap-
plies partial braking. If the risk of a collision
becomes imminent, the AEB with Pedes-
trian Detection system applies harder
braking automatically. While the AEB with Pedestrian Detection
system is operating, you may hear the
sound of brake operation. This is normal
and indicates that the AEB with Pedestrian
Detection system is operating properly.
NOTE:
The vehicle’s brake lights come on when
any braking is performed by the AEB
with Pedestrian Detection system.
Depending on vehicle speed and distance
to the vehicle or pedestrian ahead, as well
as driving and roadway conditions, the sys-
tem may help the driver avoid a forward
collision or may help mitigate the conse-
quences if a collision should be unavoid-
able. If the driver is handling the steering
wheel, accelerating or braking, the AEB with
Pedestrian Detection system will function
later or will not function.
The automatic braking will cease under the
following conditions:
• When the steering wheel is turned to
avoid a collision.
• When the accelerator pedal is depressed.
• When there is no longer a vehicle or a pedestrian detected ahead. If the AEB with Pedestrian Detection sys-
tem has stopped the vehicle, the vehicle
will remain at a standstill for approximately
2 seconds before the brakes are released.
Starting and driving5-83

AEB WITH PEDESTRIAN
DETECTION SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the AEB with Pedestrian Detection
system. Failure to operate the vehicle in
accordance with these system limita-
tions could result in serious injury or
death.
• The AEB with Pedestrian Detection
system cannot detect all vehicles or
pedestrians under all conditions.
•
The AEB with Pedestrian Detection
system does not detect the following:
– Pedestrians that are small (for ex- ample, children), in a sitting posi-
tion, operating toys/skateboards,
on scooters or in wheelchairs, or
not in an upright standing or
walking position.
– Animals of any size.
–
Obstacles (for example, cargo or
debris) on the roadway or roadside.
– Oncoming or crossing vehicles.
–Vehicles where the tires are difficult
to see or the shape of the rear of the
vehicle is unclear or obstructed.
– Parked vehicles. •
The AEB with Pedestrian Detection
system has some performance limi-
tations.
– If a stationary vehicle is in the ve-
hicle’s path, the system will not
function when the vehicle ap-
proaches the stationary vehicle at
speeds over approximately 50
mph (80 km/h).
– Pedestrian detection will not
function when the vehicle is
driven at speeds over approxi-
mately 37 mph (60 km/h) or below
approximately 6 mph (10km/h).
• The AEB with Pedestrian Detection
system may not function properly or
detect a vehicle or pedestrians
ahead in the following conditions:
– In poor visibility conditions (such
as rain, snow, fog, dust storms,
sand storms, smoke, and road
spray from other vehicles).
– If dirt, ice, snow, fog or other ma-
terial is covering the radar sensor
area or camera area of the
windshield. –
If strong light (for example, sun-
light or high beams) enters the
front camera or a sudden change
in brightness occurs (for example,
entering a tunnel or driving in
lightning).
– In dark or dimly lit conditions,
such as at night or in tunnels, in-
cluding cases where your vehi-
cle’s headlights are off or dim, or
the tail lights of the vehicle ahead
are off.
– When the direction of the camera
is misaligned.
– When driving on a steep downhill
slope, on roads with sharp curves,
and/or bumpy or dirt roads.
– If there is interference by other ra-
dar sources.
– When your vehicle’s position or
movement is changed quickly or
significantly (for example, lane
change, turning vehicle, abrupt
steering, sudden acceleration or
deceleration).
– Wheels or tires other than NISSAN
recommended are used.
Starting and driving5-85

• Keep your engine tuned up.
• Follow the recommended scheduledmaintenance.
• Keep the tires inflated to the correct pres- sure. Low tire pressure increases tire
wear and lowers fuel economy.
• Keep the wheels in correct alignment. Im- proper alignment increases tire wear and
lowers fuel economy.
• For vehicles equipped with
, use 4H
or 4L position only when necessary.
4-Wheel Drive operation lowers fuel
economy.
• Use the recommended viscosity engine oil. For additional information, see “Engine
oil and oil filter recommendations”
(P. 10-7).
WARNING
• For 4WD equipped vehicles, do not
attempt to raise two wheels off the
ground and shif t the transmission to
any drive or reverse position with the
engine running. Doing so may result
in drivetrain damage or unexpected
vehicle movement which could result
in serious vehicle damage or per-
sonal injury.
• Do not attempt to test a 4WD
equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamom-
eters used by some states for emis-
sions testing), or similar equipment
even if the other two wheels are
raised off the ground. Make sure you
inform test facility personnel that
your vehicle is equipped with 4WD
before it is placed on a dynamom-
eter. Using the wrong test equipment
may result in drivetrain damage or
unexpected vehicle movement
which could result in serious vehicle
damage or personal injury.CAUTION
• Do not drive the vehicle in the 4H or
4LO position on dry hard surface
roads. Driving on dry, hard surfaces in
4H or 4LO may cause unnecessary
noise, tire wear and increased fuel
consumption.
If the 4WD vehicle information dis-
play warning message turns on
when you are driving on dry hard sur-
face roads:
– In the 4H position, shif t the 4WD
shif t switch to 2WD.
– In the 4LO position, stop the ve-
hicle, move the shif t lever to the N
(Neutral) position with the brake
pedal depressed, and shif t the
4WD shif t switch to 2WD.
• If the vehicle information display
warning message is still on af ter the
above operation, have your vehicle
checked as soon as possible. It is rec-
ommended that you visit a NISSAN
dealer for this service.
INCREASING FUEL ECONOMYUSING 4–WHEEL DRIVE (4WD)
(if so equipped)
Starting and driving5-109

TRANSFER CASE SHIFTING
PROCEDURES
The part time 4WD system provides 3 posi-
tions (2WD, 4H and 4LO), so you can select
the desired drive mode according to the
driving conditions.
2WD or 4WD shif t procedure:
4WD Shif t SwitchPosition Wheels Driven Indicator
Use conditions4WD shif t procedure
4WD shif t Transfer 4LO position
2WD
Rear wheels
Fordrivingondry,paved
roads (Economy drive) Move the 4WD switch.
2WD <—> 4H
4WD shif t indicator will indicate that
the transfer shif t position is engaged.
IT IS NOT NECESSARY TO MOVE THE
SHIFT LEVER TO THE N (NEUTRAL)
POSITION IN THIS OPERATION.
PERFORM THIS OPERATION WHEN
DRIVING STRAIGHT.
4H
Four wheelsFor driving on rocky, sandy
or snow-covered roads
N (Neutral)
*1
May blink N (Neutral) disengages
the automatic transmis-
sion (A/T) mechanical
parking lock, which will
allow the vehicle to roll. Do
not leave the transfer shif t
position in N (Neutral).*2 1. Stop the vehicle.
2. With the brake pedal depressed,
move the shif t lever to the N
(Neutral) position.
3. With the brake pedal depressed, depress and turn the 4WD shif t
switch to 4LO or 4H.
THE TRANSFER CASE DOES NOT EN-
GAGE BETWEEN 4H AND 4LO (OR 4LO
TO 4H) UNLESS YOU HAVE FIRST
STOPPED THE VEHICLE, DEPRESSED
THE BRAKE PEDAL AND MOVED THE
SHIFT LEVER TO N (NEUTRAL).*3
4LO
Four wheels
Illuminated For use when maximum
power and traction is re-
quired (for example, on
steep grades or rocky,
sandy, muddy roads)
5-110Starting and driving

CAUTION
• Never shif t the 4WD shif t switch be-
tween 4LO and 4H while driving.
• The 4H position provides greater
traction. Avoid excessive speed, as it
will cause increased fuel consump-
tion and higher oil temperatures, and
could damage drivetrain compo-
nents. Speeds over 62 mph (100
km/h) in 4H is not recommended.
• The 4LO position provides maximum
power and traction. Avoid raising ve-
hicle speed excessively, as the maxi-
mum speed is approximately 31 mph
(50 km/h).
• When driving straight, shif t the 4WD
shif t switch to the 2WD or 4H posi-
tion. Do not move the 4WD shif t
switch when making a turn or
reversing.
• Do not shif t the 4WD shif t switch (be-
tween 2WD and 4H) while driving on
steep downhill grades. Use the en-
gine brake and low A/T gears (M1 or
M2) for engine braking.
• Do not operate the 4WD shif t switch
(between 2WD and 4H) with the rear
wheels spinning. •
Do not drive on dry hard surface
roads in the 4H or 4LO position. Driv-
ing on dry hard surfaces in 4H or 4LO
may cause unnecessary noise and
tire wear. NISSAN recommends driv-
ing in the 2WD position under these
conditions.
• The 4WD transfer case may not be
shif ted between 4H and 4LO at low
ambient temperatures and the
transfer 4LO position indicator may
blink even when the 4WD shif t switch
is shif ted. Af ter driving for a while
you can change the 4WD transfer
case between 4H and 4LO.
When driving on rough roads:
• Set the 4WD shif t switch to 4H or 4LO.
• Drive carefully according to the road sur- face conditions.
When the vehicle is stuck:
• Set the 4WD shif t switch to 4H or 4LO.
• Place stones or wooden blocks under the tires to free the vehicle.
• Use the Electronic locking rear differential (E-Lock) system (if so equipped). For addi-
tional information, see “Electronic locking
rear differential (E-Lock) system” (P. 5-115). • If it is difficult to free the vehicle, rock the
vehicle back and forth between reverse
and drive gears.
• If the vehicle is stuck deep in mud, place stones or wooden blocks under the tires.
Then try the recovery procedures above.
Tire chains may be effective.
CAUTION
• Do not spin the tires excessively. Tires
will sink deep into the mud, making it
difficult to free the vehicle.
• Avoid shif ting gears with the engine
running at high speeds as this may
cause malfunction.
5-112Starting and driving

4WD shif t switch operations
• Shif t the 4WD shif t switch to either the2WD, 4H or 4LO position, depending on
driving conditions.
• If the 4WD shif t switch is operated
while making a turn, accelerating or
decelerating or if the ignition switch is
placed in the OFF position while in the
4H or 4LO, you may feel a jolt. This is not
abnormal.
•
You may hear some noise as the system
shif ts or engages. This is not abnormal.
CAUTION
•
When driving straight, shif t the 4WD
shif t switch to the 2WD or 4H position.
Do not move the 4WD shif t switch
when making a turn or reversing.
•Do not shif t the 4WD shif t switch while
driving on steep downhill grades. Use
the engine brake and low automatic
transmission gears (M1 or M2) for en-
gine braking.
• Do not operate the 4WD shif t switch
with the rear wheels spinning.
• Before placing the 4WD shif t switch
in the 4H position from 2WD, ensure
the vehicle speed is less than 62 mph
(100 km/h). Failure to do so can dam-
age the 4WD system.
• Never shif t the 4WD shif t switch be-
tween 4LO and 4H while driving.
4WD shif t indicator
The 4WD shif t indicator is located in the
vehicle information display.
The indicator should turn off within one
second af ter placing the ignition switch in
the ON position.
While the engine is running, the 4WD shif t
indicator will illuminate the position se-
lected by the 4WD shif t switch.
• The 4WD shif t indicator may come on
while shif ting from one drive mode to
the other. When the shif ting is com-
pleted, the 4WD shif t indicator will stay
on.
LSD2463LSD2328
Starting and driving5-113

• If the 4WD vehicle information displaywarning message comes on, the 4WD
shif t indicator goes out.
CAUTION
If the 4WD shif t indicator indication
changes to 2WD when the 4WD shif t
switch is shif ted to the 4H position at
low ambient temperatures, the 2WD
mode may be being engaged due to
malfunctioning drive system. If the in-
dicator does not return to normal and
the 4WD vehicle information display
warning message comes on, have the
system checked. It is recommended
that you visit a NISSAN dealer for this
service.
Warning message
Warning message Warning message comes on when:
Vehicle information
display
4WD Error: See Owner’s Manual There is a malfunction
in the 4–Wheel Drive system
FRT & RR tire size differ- ence: See Owner’s Manual The difference in wheel
rotation is large
The 4WD warning message is located in
the meter. The 4WD warning message
comes on when the ignition switch is
placed in the ON position. It turns off soon
af ter the engine is started. If any malfunc-
tion occurs in the 4WD system when the
ignition switch is ON, the warning message
will either remain illuminated or blink. If the
4WD warning message comes on, the 4WD
shif t indicator goes out. A large difference
between the diameters of front and rear
wheels will make the warning message
blink slowly (about once per two seconds).
Shif t the 4WD shif t switch into 2WD and do
not drive fast.
CAUTION
• If the warning message comes on
during operation or rapidly af ter
stopping the vehicle for a while, have
your vehicle checked as soon as pos-
sible. It is recommended that you
visit a NISSAN dealer for this service.
• Shif ting between 4H and 4LO is not
recommended when the 4WD
warning message turns on. •
When the warning message comes
on, the 2WD mode may be engaged
even if the 4WD shif t switch is in 4H.
Be especially careful when driving. If
corresponding parts are malfunc-
tioning, the 4WD mode will not be en-
gaged even if the 4WD shif t switch is
shif ted.
• Do not drive the vehicle in the 4H or
4LO position on dry hard surface
roads. Driving on dry, hard surfaces in
4H or 4LO may cause unnecessary
noise, tire wear and increased fuel
consumption.
If the 4WD warning message turns on
when you are driving on dry hard sur-
face roads:
– In the 4H position, shif t the 4WD
shif t switch to 2WD.
– In the 4LO position, stop the ve-
hicle, move the automatic trans-
mission shif t lever to the N (Neu-
tral) position with the brake pedal
depressed, and shif t the 4WD shif t
switch to 2WD.
5-114Starting and driving

•If the warning message is still on af-
ter the above operation, have your
vehicle checked as soon as possible.
It is recommended that you visit a
NISSAN dealer for this service.
• The transfer case may be damaged if
you continue driving with the
warning message on.The E-Lock system can provide additional
traction and should only be used when a
vehicle has become or is becoming stuck.
This system operates by electronically “lock-
ing” the two rear drive wheels together, al-
lowing them to turn at the same speed. The
system is used when it is not possible to free
a stuck vehicle even when using the 4LO
position (4-Wheel Drive vehicles).
When added traction is required, activate
the E-Lock system by pushing the switch
ON. For additional information, see “Elec-
tronic locking rear differential (E-Lock) sys-
tem switch” (P. 2-55). Once the system fully
engages, the indicator light in the instru-
ment panel will remain on. When the sys-
tem is activated, both rear wheels will en-
gage, providing added traction.
The rear wheels may momentarily slip or
move to engage the system, and the sys-
tem will only engage up to approximately 4
mph (7 km/h). Once the vehicle is free, the
system should be turned off and driving
resumed.
The Anti-Lock Braking (ABS) system is dis-
abled and the ABS light illuminates when
the E-Lock system is on. Also, the Vehicle
Dynamic Control (VDC) system is disabled
and the
indicator light illuminates
when the E-Lock system is on.
WARNING
• Never leave the E-Lock system on
when driving on paved or hard-
surfaced roads. Turning the vehicle
may result in the rear wheels slipping
and result in an accident and per-
sonal injury. Af ter using the E-Lock
system to free the vehicle, turn the
system off.
• Use the E-Lock system only when
freeing a stuck vehicle. Try the 4LO
position before using the E-Lock sys-
tem. Never use the E-Lock system on
a slippery road surface such as snow
or ice surface. Using the E-Lock sys-
tem when driving in these road con-
ditions may cause unexpected
movement of the vehicle during en-
gine braking, accelerating or turning,
which may result in an accident and
serious personal injury.
• Observe the above warnings. Other-
wise, loss of normal steering control
may result. This may result in an ac-
cident and serious personal injury.
ELECTRONIC LOCKING REAR
DIFFERENTIAL (E-Lock) SYSTEM (if
so equipped)
Starting and driving5-115