2023 INFINITI QX80 engine

5-98Starting and driving
WAF0741X
FEB system warning light (on the meter
panel)
Vehicle information display
Steering-wheel-mounted controls (left
side)
TURNING THE FEB WITH PE-
DESTRIAN DETECTION SYSTEM
ON/OFF
Perform the following steps to turn the FEB
with Pedestrian Detection system on or off.1. Push the
button until “Settings”
appears in the vehicle information dis-
play. Use the
button to select “Driver
Assistance.” Then push the OK button.
2. Select “Emergency Brake” and push the OK button.
3. Select “Front” and use the OK button to turn the system on or off.
When the FEB with Pedestrian Detection
system is turned off, the FEB system warn-
ing light illuminates.
NOTE:
. The FEB with Pedestrian Detection
system will be automatically turned
ON when the engine is restarted.
. The Predictive Forward Collision Warn-
ing (PFCW) system is integrated into
the FEB system. There is not a separate
selection for the PFCW system. When
the PFCW system is also turned off.
FEB WITH PEDESTRIAN DETEC-
TION SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the FEB with Pedestrian Detection
system. Failure to operate the vehicle in
accordance with these system limita-

5-100Starting and driving
— When the vehicle or pedestrian isoffset from the vehicle’s forward
path.
— If the speed difference between the two vehicles is small.
— The pedestrian’s profile is par- tially obscured or unidentifiable;
for example, due to transporting
luggage, pushing a stroller, wear-
ing bulky or very loose-fitting
clothing or accessories, or being
in a unique posture (such as rais-
ing hands).
— There is poor contrast of a person to the background, such as having
clothing color or pattern which is
similar to the background.
— For approximately 15 seconds after starting the engine
— If the vehicle ahead has a unique or unusual shape, extremely low
or high clearance heights, or unu-
sual cargo loading or is narrow
(for example, a motorcycle).
— When the vehicle or pedestrian is located near a traffic sign, a
reflective area (for example,
water on road), or is in a shadow. — When multiple pedestrians are
grouped together.
— When the view of the pedestrian is obscured by a vehicle or other
object.
— While towing a trailer or other vehicle.
. The system performance may be
degraded in the following conditions:
— The vehicle is driven on a slippery road.
— The vehicle is driven on a slope.
— Excessively heavy baggage is loaded in the rear seat or the
cargo area of your vehicle.
. The system is designed to automati-
cally check the sensor (radar and
camera)’s functionality, within cer-
tain limitations. The system may not
detect some forms of obstruction of
the sensor area such as ice, snow or
stickers, for example. In these cases,
the system may not be able to warn
the driver properly. Be sure that you
check, clean and clear sensor areas
regularly.
. In some road and traffic conditions,
the FEB with Pedestrian Detection
system may unexpectedly apply par- tial braking. When acceleration is
necessary, depress the accelerator
pedal to override the system.
. The FEB with Pedestrian Detection
system may operate when a pattern,
object, shadow or lights are detected
that are similar to the outline of
vehicles or pedestrians, or if they
are the same size and position as a
vehicle or motorcycle’s tail lights.
. The system may keep operating when
the vehicle ahead is turning right or
left.
. The system may operate when your
vehicle is approaching and passing a
vehicle ahead.
. Depending on the road shape (curved
road, entrance and exit of the curve,
winding road, lane regulation, under
construction, etc.), the system may
operate temporarily for the oncoming
vehicle in front of your vehicle.

.When the sensor area of the front
bumper is covered with dirt or is ob-
structed
Action to take:
If the FEB system warning light (orange)
comes on, stop the vehicle in a safe place,
place the shift lever in the P (Park) position
and turn the engine off. Clean the radar
cover below the front bumper with a soft
cloth, and restart the engine. If the FEB
system warning light continues to illuminate,
have the FEB with Pedestrian Detection
system checked. It is recommended you visit
an INFINITI retailer for this service.
. When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next
to long walls)
Action to take:
When the above conditions no longer exist,
the FEB with Pedestrian Detection system
will resume automatically.
Condition D
When the accelerator pedal actuator detects
that the internal motor temperature is high,
the FEB with Pedestrian Detection system is
automatically turned off. The FEB system
warning light (orange) will illuminate.
Action to take: When the above conditions no longer exist,
the FEB with Pedestrian Detection system
will resume automatically.
Condition E
When VDC system is OFF, the FEB brake
will not operate. In this case only visible and
audible warning operates. The FEB system
warning light (orange) will illuminate.
Action to take:
When VDC system is ON, the FEB with
Pedestrian Detection system will resume
automatically.
SYSTEM MALFUNCTION
If the FEB with Pedestrian Detection system
malfunctions, it will be turned off automa-
tically, a chime will sound, the FEB system
warning light will (orange) will illuminate and
the “Malfunction” warning message will
appear in the vehicle information display.
Action to take:
If the warning light (orange) comes on, stop
the vehicle in a safe location. Turn the engine
off and restart the engine. If the warning
light continues to illuminate, have the FEB
with Pedestrian Detection system checked.
It is recommended that you visit an INFINITI
retailer for this service.
JVS1158X
SYSTEM MAINTENANCE
The radar sensoris located on the front of
the vehicle. The camerais located on the
upper side of the windshield.
To keep the FEB with Pedestrian Detection
system operating properly, be sure to ob-
serve the following:
. Always keep the sensor area on the front
of the vehicle and windshield clean.
. Do not strike or damage the areas around
the sensors (ex. bumper, windshield).
. Do not cover or attach stickers or similar
objects on the front of the vehicle near
the sensor area. This could cause failure
or malfunction.
Starting and driving5-103

WAF0741X
FEB system warning light (on the meter
panel)
Vehicle information display
Steering-wheel-mounted controls (left
side)
TURNING THE PFCW SYSTEM
ON/OFF
Perform the following steps to turn the
PFCW system on or off.
1. Push the
button until “Settings”
appears in the vehicle information dis- play. Use the
button to select “Driver
Assistance.” Then push the OK button.
2. Select “Emergency Brake” and push the OK button.
3. Select “Front” and use the OK button to turn the system on or off.
When the PFCW system is turned off, the
FEB system warning light (orange) illumi-
nates.
NOTE:
. The PFCW system will be automatically
turned on when the engine is restarted.
. The PFCW system is integrated into the
FEB system. There is not a separate
selection for the PFCW system. When
the FEB system is turned off, the PFCW
system is also turned off.
Starting and driving5-107

Condition B
Under the following conditions, making it
impossible to detect a vehicle ahead, the
PFCW system is automatically turned off.
The FEB system warning light (orange) will
illuminate and the “Forward Driving Aids
temporarily disabled Front Sensor blocked
See Owner’s Manual” warning message will
appear in the vehicle information display.
.When the sensor area of the front of the
vehicle is covered with dirt or is ob-
structed
Action to take:
If the warning light (orange) flashes, stop the
vehicle in a safe place, push the park button
to engage the P (Park) position and turn the
engine off. Clean the radar cover on the
front of the vehicle with a soft cloth, and
restart the engine. If the warning light
continues to illuminate, have the PFCW
system checked. It is recommended you visit
an INFINITI retailer for this service.
. When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next
to long walls)
Action to take:
When the above conditions no longer exist,
the PFCW system will resume automatically.
SYSTEM MALFUNCTION
If the PFCW system malfunctions, it will be
turned off automatically, a chime will sound,
the FEB system warning light (orange) will
illuminate and the "Malfunction" warning
message will appear in the vehicle informa-
tion display.
Action to take:
If the warning light (orange) illuminates, stop
the vehicle in a safe location. Turn the engine
off and restart the engine. If the warning
light continues to illuminate, have the PFCW
system checked. It is recommended you visit
an INFINITI retailer for this service.
JVS1154X
SYSTEM MAINTENANCE
The radar sensoris located on the front of
the vehicle.
To keep the system operating properly, be
sure to observe the following:
. Always keep the sensor area on the front
of the vehicle clean.
. Do not strike or damage the areas around
the sensor.
. Do not cover or attach stickers or similar
objects on the front bumper near the
sensor area. This could cause failure or
malfunction.
. Do not attach metallic objects near the
sensor area (brush guard, etc.). This
Starting and driving5-111

5-114Starting and driving
play. Use thebutton to select “Driver
Assistance.” Then push the OK button.
2. Select “Driver Attention Alert” and push the OK button to turn the system on or
off.
NOTE:
The setting will be retained even if the
engine is restarted.
DAA SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the DAA system. Failure to operate
the vehicle in accordance with these
system limitations could result in serious
injury or death.
. The DAA system may not operate
properly and may not provide an alert
in the following conditions:
— Poor road conditions such as an uneven road surface or pot holes.
— Strong side wind.
— If you have adopted a sporty driving style with higher cornering
speeds or higher rates of accel-
eration. — Frequent lane changes or changes
to vehicle speed.
. The DAA system will not provide an
alert in the following conditions:
— Vehicle speeds lower than 37 MPH (60 km/h).
— Short lapses of attention.
— Instantaneous distractions such as dropping an object.
SYSTEM MALFUNCTION
If the DAA system malfunctions, the “Driver
Attention Alert Malfunction” warning mes-
sage will appear in the vehicle information
display and the function will be stopped
automatically.
Action to take
Stop the vehicle in a safe location, place the
vehicle in P (Park) position, turn the engine
off and restart the engine. If the warning
message continues to appear, have the
system checked. It is recommended that
you visit an INFINITI retailer for this service.
CAUTION
During the first 1,200 miles (2,000 km),
follow these recommendations to obtain
maximum engine performance and en-
sure 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 constant
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 possible.
. Do not tow a trailer for the first 500
miles (805 km).
BREAK-IN SCHEDULE

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 pedalapplication.
.Avoid rapid starts and stops..Use smooth, gentle accelerator andbrake application whenever possible.
.Maintain constant speed while com-muting and coast whenever possible.
2. Maintain constant speed.
.Look ahead to try and anticipate and minimize stops.
.Synchronizing your speed with traffic
lights allows you to reduce your
number of stops.
.Maintaining a steady speed can mini-mize red light stops and improve 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 aerodynamic
drag.
.Recirculating the cool air in the cabinwhen the A/C is on reduces cooling
load. 4. Drive at economical speeds and dis-
tances.
.Observing the speed limit and notexceeding 60 MPH (97 km/h) (where
legally allowed) can improve fuel
efficiency due to reduced aerody-
namic drag.
.Maintaining a safe following distance
behind other vehicles reduces unne-
cessary braking.
.Safely monitoring traffic to anticipatechanges in speed permits reduced
braking and smooth acceleration
changes.
.Select a gear range suitable to roadconditions.
5. Use cruise control.
.Using cruise control during highway driving helps maintain a steady speed.
.Cruise control is particularly effectivein providing fuel savings when driving
on flat terrains.
6. Plan for the shortest route.
.Utilize a map or navigation system to determine the best route to save time.
7. Avoid idling.
.Shutting off your engine when safe for stops exceeding 30-60 seconds
saves fuel and reduces emissions. 8. Buy an automated pass for toll roads.
.Automated passes permit drivers to
use special lanes to maintain cruising
speed through the toll and avoid
stopping and starting.
9. Winter warm up.
.Limit idling time to minimize impact to fuel economy.
.Vehicles typically need no more than30 seconds of idling at start-up to
effectively circulate the engine oil
before driving.
.Your vehicle will reach its ideal oper-ating temperature more quickly while
driving versus idling.
10. Keeping your vehicle cool.
.Park your vehicle in a covered parking area or in the shade whenever possi-
ble.
.When entering a hot vehicle, openingthe windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C system.
Starting and driving5-115
FUEL EFFICIENT DRIVING TIPS

5-116Starting 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 recom-
mendation” (P.10-6).)
WARNING
. Do not attempt to raise two wheels
off the ground and shift the trans-
mission to any drive or reverse posi-
tion 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 dy-
namometer or similar equipment even
if the other two wheels are raised off
the ground. Make sure you inform
test facility personnel that your ve-
hicle is equipped with 4WD before it
is placed on a dynamometer. 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 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 vehicle and 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. It is recom-
mended you visit an INFINITI
retailer for this service.
. The transfer case may be damaged if
you continue driving with the 4WD
warning light blinking.
See “On-pavement and off-road driving
precautions” (P.5-8) for other precautions
for offroad driving.
INCREASING FUEL ECONOMYINFINITI ALL-MODE 4WD®(if so equipped)