4WD INFINITI QX80 2014 Owner's Guide

.When the 4WD shift switch is in the 4H
or 4L position (for 4WD models)
. When driving into a strong light (for
example, sunlight)
Action to take:
When the conditions listed above are no
longer present, turn the system off with the
dynamic driver assistance switch. Turn the
DCA system back on to use the system.
SSD0998
Condition B:
When the sensor window is dirty, making it
impossible to detect a vehicle ahead, the
DCA system is automatically canceled.
The chime sounds and the system warning
light (orange) will come on and the “CLEAN
SENSOR” indicator will appear.
Action to take:
If the warning light comes on, park the
vehicle in a safe place, turn the engine off.
Clean the sensor window with a soft cloth
and then perform the settings again.
SSD0999
Condition C:
When the DCA system is not operating
properly, the chime sounds and the system
warning light (“CRUISE” orange) will come
on.
Action to take:
If the warning light comes on, park the
vehicle in a safe place. Turn the engine off,
restart the engine, and turn on the DCA
system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal
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5-98Starting and driving
will illuminate. When the IBA OFF switch is
pushed again, the system will turn on and
the IBA OFF indicator light will turn off.
The IBA system will remain in the last ON
or OFF state it was left in until it is
manually changed by pressing the IBA
OFF switch.
Illumination of the IBA OFF indicator light
without a beep sound is an indication that
the IBA system is temporarily unavailable.
It will occur under the following conditions:
.When driving into a strong light (for
example, sunlight)
. When the 4WD shift switch is in the 4H
or 4L position (for 4WD models)
The IBA OFF indicator light will turn off
when the system returns to its normal
operating conditions.
For the sensor maintenance, see “Intelli-
gent Cruise Control (ICC) system” earlier in
this section.
CAUTION
During the first 1,200 miles (2,000 km),
follow these recommendations to obtain
maximum engine performance and ensure
the future reliability and economy of your
new vehicle.
Failure to follow these recommendations
may result in shortened engine life and
reduced engine performance.
. Avoid driving for long periods at con-
stant speed, either fast or slow. Do not
run the engine over 4,000 rpm.
. Do not accelerate at full throttle in any
gear.
. Avoid quick starts.
. Avoid hard braking as much as possi-
ble.
. Do not tow a trailer for the first 500
miles (805 km). Follow these easy-to-use Fuel Efficient
Driving Tips to help you achieve the most
fuel economy from your vehicle.
1. Use smooth accelerator and brake
pedal application.
.Avoid rapid starts and stops..Use smooth, gentle accelerator andbrake application whenever possi-
ble.
.Maintain constant speed while com-muting and coast whenever possi-
ble.
2. Maintain constant speed.
.Look ahead to try and anticipate and minimize stops.
.Synchronizing your speed with traf-fic lights allows you to reduce your
number of stops.
.Maintaining a steady speed can
minimize red light stops and im-
prove fuel efficiency.
3. Use air conditioning (A/C) at higher vehicle speeds.
.Below 40 MPH (64 km/h), it is moreefficient to open windows to cool the
vehicle due to reduced engine load.
.Above 40 MPH (64 km/h), it is moreefficient to use A/C to cool the
vehicle due to increased aerody-
BREAK-IN SCHEDULE FUEL EFFICIENT DRIVING TIPS

5-100Starting and driving
.Keep your engine tuned up.
. Follow the recommended scheduled
maintenance.
. Keep the tires inflated to the correct
pressure. Low tire pressure increases
tire wear and lowers fuel economy.
. Keep the wheels in correct alignment.
Improper alignment increases tire wear
and lowers fuel economy.
. Use the recommended viscosity engine
oil. (See “Engine oil and oil filter
recommendation” in the“9. Technical
and consumer information” section.)
WARNING
.Do not attempt to raise two wheels off
the ground and shift 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 personal injury.
. Do not attempt to test a 4WD equipped
vehicle on a 2-wheel dynamometer 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 dynamometer.
Using the wrong test equipment may
result in drivetrain damage or unex-
pected vehicle movement which could
result in serious vehicle damage or
personal injury.
CAUTION
.Do not drive the vehicle in the 4HI or 4LO
position on dry hard surface roads.
Driving on dry, hard surfaces in 4HI or 4LO may cause unnecessary noise, tire
wear and increased fuel consumption.
If the Four-Wheel Drive (4WD) warning
light turns on when driving on dry hard
surface roads:
—in the 4HI position, shift the 4WD
shift switch to AUTO.
—in the 4LO position, stop the vehicleand shift the transmission lever to
the N (Neutral) position with the
brake pedal depressed and shift the
4WD shift switch to AUTO.
If the 4WD warning light is still on
after the above operation, have your
vehicle checked by an INFINITI retai-
ler as soon as possible.
. The transfer case may be damaged if you
continue driving with the 4WD warning
light blinking.
See “On-pavement and off-road driving
precautions” earlier in this section for
other precautions for offroad driving.
INCREASING FUEL ECONOMY INFINITI ALL-MODE 4WD®(if so equipped)

INFINITI ALL-MODE 4WD®SYSTEM
The all mode 4WD system provides 3 positions (AUTO, 4HI and 4LO), so you can select the desired drive mode according to the driving
conditions.
4WD shift procedure:
SSD1100
*1: The 4LO and 4HI indicator may flash alternately. Stop the vehicle and be sure to turn the 4WD shift switch after the transmission shift
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5-102Starting and driving
lever has been shifted to the N (Neutral) position. If the indicator keeps flashing after the 4WD shift procedure, drive slowly without
abrupt maneuvers for a while. Then the indicator will illuminate or turn off.
· Avoid making a turn or abrupt starts while shifting to the 4LO position. Otherwise the gears may grind, damaging the drive system.
*2: While changing in and out of the 4LO position, the engine must be running. Otherwise, the shift will not take place and the 4LO
indicator will not be on or flashing.
*3: Make sure that the 4LO indicator turns on when shifting the 4WD shift switch to the 4L position. The Vehicle Dynamic Control (VDC) off
indicator light will also turn on when 4L is selected. (See“Vehicle Dynamic Control (VDC) system”later in this section.)

The 4WD shift switch is used to select the
4WD mode depending on the driving
conditions. There are 3 types of drive
modes available, AUTO, 4HI and 4LO.
The 4WD shift switch electronically con-
trols the transfer case operation. Rotate
the switch to move between each mode,
AUTO, 4H and 4L.
You must depress the 4WD shift switch to
select 4L, and the vehicle MUST be
stationary and the shift lever in the N
(Neutral) position when changing into or
out of 4L.
WARNING
.When parking, apply the parking brake
before stopping the engine and make
sure that the 4WD shift indicator is on
and the ATP warning light turns off.
Otherwise, the vehicle could unexpect-
edly move even if the automatic trans-
mission is in the P (Park) position.
. The 4LO and 4HI indicators must stop
blinking and the 4LO or 4HI indicator
must remain illuminated or turn off
before shifting the transmission into
gear. If the shift lever is shifted from the N (Neutral) position to any other gear
while the 4LO and 4HI indicators are
blinking alternately, the vehicle may
move unexpectedly.
CAUTION
.
Never shift the 4WD shift switch be-
tween 4L and 4H while driving.
. The 4HI position provides greater trac-
tion. Avoid excessive speed, as it will
cause increased fuel consumption and
higher oil temperatures, and could da-
mage drivetrain component. Speeds over
62 MPH (100 km/h) in 4HI is not
recommended.
. The 4LO position provides maximum
traction. Avoid raising vehicle speed
excessively, as the maximum speed is
approximately 31 MPH (50 km/h).
. When driving straight, shift the 4WD
shift switch to the AUTO or 4H position.
Do not move the 4WD shift switch when
making a turn or reversing.
. Do not shift the 4WD shift switch
(between AUTO and 4H) while driving
on steep downhill grades. Use the engine brake and low automatic trans-
mission gears for engine braking.
. Do not operate the 4WD shift switch
(between AUTO and 4H) with the rear
wheels spinning.
. Do not drive on dry hard surface roads in
the 4HI or 4LO position. Driving on dry
hard surfaces in 4HI or 4LO may cause
unnecessary noise and tire wear.
INFINITI recommends driving in the
AUTO position under these conditions.
. The 4WD transfer case may not be
shifted between 4HI and 4LO at low
ambient temperatures and the 4LO and
4HI indicators may blink even when the
4WD shift switch is shifted. After driving
for a while you can change the 4WD shift
switch between 4H and 4L.
When driving on rough roads,
.Drive carefully according to the road
surface conditions.
When the vehicle is stuck,
. Place stones or wooden blocks under
the tires to free the vehicle.
. Set the 4WD shift switch to 4H or 4L.
. If it is difficult to free the vehicle, repeat
forward and backward movement to
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5-104Starting and driving
increase the movement.
. If the vehicle is stuck deep in mud, 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 shifting gears with the engine
running at high speeds as this may
cause malfunction.
SSD1048
4WD SHIFT SWITCH
.Shift the 4WD shift switch to either the
AUTO, 4H or 4L position, depending on
driving conditions.
. With the switch set to the AUTO posi-
tion, distribution of torque to the front
and rear wheels changes automatically,
depending on road conditions encoun-
tered [ratio; 0 : 100 (2WD) ?50 : 50
(4WD)]. This results in improved driving
stability.
. If the 4WD shift switch is operated
while making a turn, accelerating or
decelerating or if the ignition switch is
placed in the OFF position while in the AUTO, 4H or 4L, you may feel a jolt.
This is not abnormal.
. When the vehicle is stopped after
making a turn, you may feel a slight
jolt after the shift lever is shifted to N
(Neutral) or P (Park) position. This
occurs because the transfer clutch is
released and not because of a malfunc-
tion.
CAUTION
. When driving straight, shift the 4WD
shift switch to the AUTO or 4H position.
Do not move the 4WD shift switch when
making a turn or reversing.
. Do not shift the 4WD shift switch while
driving on steep downhill grades. Use
the engine brake and low automatic
transmission gears for engine braking.
. Do not operate the 4WD shift switch with
the rear wheels spinning.
. Before placing the 4WD shift switch in
the 4H position from AUTO, ensure the
vehicle speed is less than 62 MPH (100
km/h). Failure to do so can damage the
4WD system.

.Never shift the 4WD shift switch be-
tween 4L and 4H while driving.
. Engine idling speed is high while warm-
ing up the engine. Be especially careful
when starting or driving on slippery
surfaces with the 4WD shift switch in
AUTO.
SSD1058
4WD shift indicator
4WD SHIFT INDICATOR
The 4WD shift indicator is displayed in the
vehicle information display.
The indicator should turn off within 1
second after placing the ignition switch in
the ON position.
While the engine is running, the 4WD shift
indicator will illuminate the position se-
lected by the 4WD shift switch. (See the
4WD shift procedure list shown in the
“INFINITI all-mode 4WD
®system” earlier in
this section.)
. The 4WD shift indicator may blink while shifting from one drive mode to the
other. When the shifting is completed,
the 4WD shift indicator will come on. If
the indicator does not come on im-
mediately, make sure the area around
the vehicle is safe, and drive the
vehicle straight, accelerate or decele-
rate or move the vehicle in reverse,
then shift the 4WD shift switch.
. If the 4WD warning light comes on, the
4WD shift indicator turns off.
4WD WARNING LIGHT
Warning light Comes on or blinks
when:
Illuminates There is a mal-
function in the 4WD system
Blinks rapidly The transfer case
oil temperature is abnormally high
Blinks slowly The difference in
wheel rotation is large
The 4WD warning light is located in the
meter.
The 4WD warning light comes on when the
ignition switch is placed in the ON posi-
tion. It turns off soon after the engine is
started.
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5-106Starting and driving
If any malfunction occurs in the 4WD
system when the ignition switch is placed
in the ON position, the 4WD warning light
will either remain illuminated or blink.
If the 4WD warning light comes on, the
4WD shift indicator turns off.
High-temperature transfer case oil makes
the 4WD warning light blink rapidly (about
twice per second). If the warning light
blinks rapidly during operation, stop the
vehicle in a safe place immediately. Then if
the light turns off after a while, you can
continue driving.
A large difference between the diameters
of front and rear wheels will make the 4WD
warning light blink slowly (about once per
two seconds). Change the 4WD shift switch
to AUTO and do not drive fast.
CAUTION
.If the 4WD warning light comes on or
blinks slowly during operation or rapidly
after stopping the vehicle for a while,
have your vehicle checked by an INFINITI
retailer as soon as possible.
. Shifting between 4HI and 4LO is not
recommended when the 4WD warning light turns on.
. When the 4WD warning light comes on,
the 2WD mode may be engaged even if
the 4WD shift switch is in AUTO or 4H.
Be especially careful when driving. If
corresponding parts are malfunctioning,
the 4WD mode will not be engaged even
if the 4WD shift switch is shifted.
. Do not drive the vehicle in the 4HI or 4LO
position on dry hard surface roads.
Driving on dry, hard surfaces in 4HI or
4LO may cause unnecessary noise, tire
wear and increased fuel consumption.
If the 4WD warning light turns on when
driving on dry hard surface roads:
—in the AUTO or 4HI position, shift
the 4WD shift switch to AUTO.
—in the 4LO position, stop the vehicle
and shift the transmission shift lever
to the N (Neutral) position and shift
the 4WD shift switch to AUTO.
. If the 4WD warning light is still on after
the above operation, have your vehicle
checked by an INFINITI retailer as soon
as possible.
. The transfer case may be damaged if you
continue driving with the warning light blinking.

WARNING
.While driving on a slippery surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or accel-
erating could cause the wheels to skid
and result in an accident.
. If the engine is not running or is turned
off while driving, the power assist for
the brakes will not work. Braking will be
harder.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force
than a conventional brake booster even
with light pedal force.
WARNING
The Brake Assist is only an aid to assist
braking operation and is not a collision
warning or avoidance device. It is the
driver’s responsibility to stay alert, drive
safely and be in control of the vehicle at all
times.
PREVIEW FUNCTION (Intelligent
Cruise Control system equipped
models)
When the Preview Function identifies the
need to apply emergency braking by
sensing a vehicle ahead in the same lane
and the distance and relative speed from
it, it applies the brake pre-pressure before
the driver depresses the brake pedal and
helps improve brake response by reducing
pedal free play. .
This system will not operate when the
vehicle is moving at approximately 20
MPH (32 km/h) or less.
. The pre-pressure function ceases when
the following conditions are met:
1) When the driver depresses the
accelerator pedal or the brake
pedal.
2) If the driver does not operate the accelerator or brake pedal within
approximately 1 second.
3) When the 4WD shift switch is in the 4H or 4L position (for 4WD models).
Starting and driving5-111
BRAKE ASSIST