2023 INFINITI QX80 fuel

3-28Pre-driving checks and adjustments
SPA2753
To remove the fuel-filler cap:
1. Turn the fuel-filler cap counterclockwiseto remove.
2. Put the fuel-filler cap on the cap holder
while refueling.
To install the fuel-filler cap:
1. Insert the fuel-filler cap straight into the fuel-filler tube.
2. Turn the fuel-filler cap clockwise until a single click is heard.
WAD0274X
Loose Fuel Cap warning
The Loose Fuel Cap warning appears on the
vehicle information display when the fuel-
filler cap is not tightened correctly after the
vehicle has been refueled. It may take a few
driving trips for the warning to be displayed.
To turn off the warning, perform the
following:
1. Remove and install the fuel-filler cap assoon as possible. (See “Fuel-filler cap”
(P.3-26).)
2. Tighten the fuel-filler cap until it clicks.
3. Push the
switchon the
steering wheel to turn off the Loose
Fuel Cap warning after tightening the fuel-filler cap.

The monitor displays various views of the
position of the vehicle in a split screen
format. All views are not available at all
times.
Available views:
.Front view
An approximately 150-degree view of
the front of the vehicle.
. Rear view
An approximately 150-degree view of
the rear of the vehicle.
. Bird’s-eye view
The surrounding view of the vehicle from
above.
. Front-side view
The view around and ahead of the front
passenger’s side wheel.
. Front-wide view
An approximately 180-degree view of
the front of the vehicle.
. Rear-wide view
An approximately 180-degree view of
the rear of the vehicle.
WAE0291X
To display the multiple views, the Around
View®Monitor system uses cameraslocated in the front grill, on the vehicle’s
outside mirrors and one just above the
vehicle’s license plate.
AROUND VIEW®MONITOR SYS-
TEM OPERATION
With the ignition switch in the ON position,
move the shift lever to the R (Reverse)
position or push the CAMERA button to
operate the Around View
®Monitor.
The screen displayed on the Around View®
Monitor will automatically return to the
previous screen 3 minutes after the CAM-
ERA button has been pushed with the shift lever in a position other than the R (Reverse)
position.
Available views
WARNING
.
The distance guide line and the
vehicle width line should be used as
a reference only when the vehicle is
on a paved, level surface. The dis-
tance viewed on the monitor is for
reference only and may be different
than the actual distance between the
vehicle and displayed objects.
. Use the displayed lines and the bird’s-
eye view as a reference. The lines and
the bird’s-eye view are greatly af-
fected by the number of occupants,
fuel level, vehicle position, road con-
dition and road grade.
. If the tires are replaced with different
sized tires, the predictive course lines
and the bird’s-eye view may be dis-
played incorrectly.
. When driving the vehicle up a hill,
objects viewed in the monitor are
farther than they appear. When driv-
ing the vehicle down a hill, objects
viewed in the monitor are closer than
they appear.
Monitor, climate, audio, phone and voice recognition systems4-5

Blind Spot Intervention®(BSI) (if so equipped) ...... 5-42
BSI system operation ............................................... 5-43
How to enable/disable the BSI system .............. 5-45
BSI system limitations ............................................. 5-45
BSI driving situations ............................................... 5-47
System temporarily unavailable ............................ 5-51
System malfunction .................................................. 5-51
System maintenance ................................................ 5-51
Back-up Collision Intervention (BCI) ......................... 5-53 BCI system operation .............................................. 5-55
How to enable/disable the BCI system ............. 5-58
BCI system precautions ........................................... 5-59
System temporarily unavailable ............................ 5-61
System malfunction .................................................. 5-61
System maintenance ................................................ 5-61
Cruise control (if so equipped) .................................... 5-62
Precautions on cruise control ................................ 5-62
Cruise control operations ....................................... 5-63
Intelligent Cruise Control (ICC) (if so equipped) ..... 5-64 How to select the cruise control mode ............... 5-66
Vehicle-to-vehicle distance control mode ......... 5-66
Conventional (fixed speed) cruise
control mode .............................................................. 5-81
Distance Control Assist (DCA) (if so equipped) ..... 5-85
DCA system operation ........................................... 5-87
How to enable/disable the DCA system .......... 5-90
DCA system display and indicators ..................... 5-91
DCA system limitations ........................................... 5-91 System temporarily unavailable .......................... 5-93
System malfunction ................................................ 5-94
System maintenance .............................................. 5-94
Forward Emergency Braking (FEB) with
Pedestrian Detection system ...................................... 5-95 FEB with Pedestrian Detection
system operation ..................................................... 5-96
Turning the FEB with Pedestrian Detection
system ON/OFF ..................................................... 5-98
FEB with Pedestrian Detection
system limitations ................................................... 5-98
System temporarily unavailable ....................... 5-102
System malfunction ............................................. 5-103
System maintenance ........................................... 5-103
Predictive Forward Collision Warning
(PFCW) ........................................................................\
.. 5-104 PFCW system operation .................................... 5-106
Turning the PFCW system ON/OFF ............. 5-107
PFCW system limitations .................................. 5-109
System temporarily unavailable ....................... 5-110
System malfunction .............................................. 5-111
System maintenance ............................................ 5-111
Driver Attention Alert (DAA) .................................... 5-112 DAA system operation ........................................ 5-113
How to enable/disable the DAA system ....... 5-113
DAA system limitations ....................................... 5-114
System malfunction .............................................. 5-114
Break-in schedule ......................................................... 5-114
Fuel efficient driving tips ........................................... 5-115

Increasing fuel economy ............................................. 5-116
INFINITI all-mode 4WD®(if so equipped) ............ 5-116
INFINITI all-mode 4WD®system ....................... 5-117
4WD shift switch ................................................... 5-120
4WD shift indicator ................................................ 5-121
4WD warning light ................................................. 5-121
Hill Start Assist system ............................................... 5-123
Parking/parking on hills ............................................. 5-124
TOW mode ..................................................................... 5-125
SNOW mode .................................................................. 5-125
Front and rear sonar system ..................................... 5-126
System operation .................................................... 5-127
Sonar function settings ........................................ 5-128
Turning on and off the sonar function ............ 5-130
Sonar limitations ..................................................... 5-131
System temporarily unavailable .......................... 5-132
System maintenance .............................................. 5-132
Power steering .............................................................. 5-132 Brake system ................................................................. 5-133
Braking precautions .............................................. 5-133
Parking brake break-in ........................................ 5-133
Brake assist ................................................................... 5-134
Brake assist ............................................................ 5-134
Anti-lock Braking System (ABS) ...................... 5-134
Vehicle Dynamic Control (VDC) system ................ 5-135 Vehicle Dynamic Control (VDC)
OFF switch ............................................................. 5-137
Cold weather driving ................................................... 5-137 Freeing a frozen door lock ................................. 5-137
Antifreeze ................................................................ 5-137
Battery ..................................................................... 5-137
Draining of coolant water .................................. 5-137
Tire equipment ...................................................... 5-138
Special winter equipment .................................. 5-138
Driving on snow or ice ........................................ 5-138
Engine block heater (if so equipped) .............. 5-138

CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce
the three-way catalyst’s ability to
help reduce exhaust pollutants.
. Keep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if
noticeable loss of performance or
other unusual operating conditions
are detected. Have the vehicle in-
spected promptly. It is recommended
you visit an INFINITI retailer for this
service.
. Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the three-way catalyst.
. Do not race the engine while warming
it up.
. Do not push or tow your vehicle to
start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a Tire Pressure Mon-
itoring System (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a sub-
stitute for proper tire maintenance, and it is
the driver’s responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously illumi-
nated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS
to continue to function properly.
Additional information
.
Since the spare tire is not equipped with
the TPMS, the TPMS does not monitor
the tire pressure of the spare tire.
. The TPMS will activate only when the
vehicle is driven at speeds above 16
MPH (25 km/h). Also, this system may
Starting and driving5-5

the brake pedal within 10 seconds after
the chime sounds. The engine will start.
After step 3 is performed, when the ignition
switch is pushed without depressing the
brake pedal, the ignition switch position will
change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the engine is
started by the above procedures, the
“Key Battery Low” message appears on
the vehicle information display even if
the Intelligent Key is inside the vehicle.
This is not a malfunction. To turn off the
Intelligent Key battery discharge indi-
cator, touch the ignition switch with the
Intelligent Key again.
. If the “Key Battery Low” message
appears, replace the battery as soon as
possible. (See “Battery” (P.8-11).) .
Make sure the area around the vehicle is
clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window washer
fluid as frequently as possible, or at least
whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appearance
and condition. Also check tires for proper
inflation.
. Lock all doors.
. Position seat and adjust head restraints/
headrests.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passengers
to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to the
ON position. (See “Warning lights, in-
dicator lights and audible reminders”
(P.2-11).)1. Apply the parking brake.
2. Move the shift lever to the P (Park) or N
(Neutral) position. (P is recommended.)
The starter is designed not to operate
unless the shift lever is in either of the
above positions.
3. Push the ignition switch to the ON position. Firmly depress the brake pedal
and push the ignition switch to start the
engine.
To start the engine immediately, push
and release the ignition switch while
depressing the brake pedal with the
ignition switch in any position.
.If the engine is very hard to start inextremely cold weather or when re-
starting, depress the accelerator ped-
al a little (approximately 1/3 to the
floor) and while holding, crank the
engine. Release the accelerator pedal
when the engine starts.
.If the engine is very hard to start
because it is flooded, depress the
accelerator pedal all the way to the
floor and hold it. Push the ignition
switch to the ON position to start
cranking the engine. After 5 or 6
seconds, stop cranking by pushing
the ignition switch to OFF. After
cranking the engine, release the accel-
erator pedal. Crank the engine with
Starting and driving5-15
BEFORE STARTING THE ENGINE STARTING THE ENGINE

5-16Starting and driving
your foot off the accelerator pedalby
depressing the brake pedal and push-
ing the push-button ignition switch to
start the engine. If the engine starts,
but fails to run, repeat the above
procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does
not start, push the ignition switch to
OFF and wait 10 seconds before crank-
ing again, otherwise the starter could be
damaged.
4. Warm-up
Allow the engine to idle for at least 30
seconds after starting. Do not race the
engine while warming it up. Drive at
moderate speed for a short distance
first, especially in cold weather. In cold
weather, keep the engine running for a
minimum of 2 - 3 minutes before shut-
ting it off. Starting and stopping the
engine over a short period of time may
make the vehicle more difficult to start.
When racing the engine up to 4,000 rpm
or more under the no load condition, the
engine will enter the fuel cut mode. 5. To stop the engine, shift the shift lever to
the P (Park) position and push the
ignition switch to the OFF position.
In preparation for the next engine start, the
engine may have a slightly delayed shutoff
after placing the ignition switch in the OFF
position, depending on the driving condi-
tions.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
REMOTE START (if so equipped)
Vehicles started with the remote engine
start function require the ignition switch to
be placed in the ON position before the shift
lever can be moved from the P (Park)
position. To place the ignition switch in the
ON position, perform the following steps: 1. Make sure that the Intelligent Key is on
you.
2. Depress the brake pedal.
3. Push the ignition switch once to the ON position.
For additional information about the remote
engine start function, see “Remote engine
start” (P.3-19).

5-20Starting and driving
Manual shift mode
When the shift lever is in the manual shift
gate, the transmission is ready for the
manual shift mode. Shift ranges can be
selected manually by moving the shift lever
up or down.
When shifting up, move the shift lever to the
+ (up) side. The transmission shifts to the
higher range.
When shifting down, move the shift lever to
the − (down) side. The transmission shifts to
the lower range.
When canceling the manual shift mode,
return the shift lever to the D (Drive)
position. The transmission returns to the
normal driving mode.
In the manual shift mode, the shift range is
displayed in the vehicle information display
between the speedometer and tachometer.
Shift ranges up or down one by one as
follows:
M1?
/M2 ?
/M3?
/M4 ?
/M5?
/M6?
/M7
M7 (7th):
Use this position for all normal forward
driving at highway speeds.
M6 (6th) andM5 (5th):
Use these positions when driving up long
slopes, or for engine braking when driving
down long slopes.
M4 (4th),M3 (3rd) andM2 (2nd):
Use these positions for hill climbing or engine
braking on downhill grades.
M1 (1st):
Use this position when climbing steep hills
slowly or driving slowly through deep snow,
or for maximum engine braking on steep
downhill grades.
. Remember not to drive at high speeds for
extended periods of time in lower than
7th gear. This reduces fuel economy.
. Moving the shift lever rapidly to the same
side twice will shift the ranges in succes-
sion.
. In the manual shift mode, the transmis-
sion may not shift to the selected gear
or may automatically shift to the other
gear. This helps maintain driving per-
formance and reduces the chance of
vehicle damage or loss of control.
. When the transmission does not shift to
the selected gear, the Automatic Trans-
mission (AT) position indicator (in the
vehicle information display) will blink
and the buzzer will sound. .
In the manual shift mode, the transmis-
sion automatically shifts down to 1st
gear before the vehicle comes to a stop.
When accelerating again, it is necessary
to shift up to the desired range.
Accelerator downshift — In D (Drive)
position —
For passing or hill climbing, fully depress the
accelerator pedal to the floor. This shifts the
transmission down into the lower gear,
depending on the vehicle speed.
Fail-safe
When the fail-safe operation occurs, note
that the transmission will be locked in any of
the forward gears according to the condi-
tion.
If the vehicle is driven under extreme
conditions, such as excessive wheel spinning
and subsequent hard braking, the fail-safe
system may be activated. This will occur
even if all electrical circuits are functioning
properly. In this case, push the switch to the
OFF position and wait for 3 seconds. Then
push the ignition switch back to the ON
position. The vehicle should return to its
normal operating condition. If it does not
return to its normal operating condition,
have the transmission checked and re-
paired, if necessary. It is recommended you