brake fluid INFINITI QX80 2021 Owner's Manual

15,000 miles/(24,000 km)/
12 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
30,000 miles/(48,000 km)/
24 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect propeller shaft (4WD models)
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replace engine air filter (1)
• Replace brake fluid
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.
30,000 miles/(48,000 km)/
36 months
Standard maintenance:
Not Applicable. Proceed to next interval.
Severe maintenance:
• Inspect brake pads and rotors
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect propeller shaft (4WD models)
• Inspect drive shaft boots (4WD models)
• Inspect exhaust system
• Replace engine oil and filter
• Replace brake fluid

45,000 miles/(72,000 km)/
36 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
60,000 miles/(96,000 km)/
48 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect axle and suspension parts
• Inspect steering gear and linkage
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

75,000 miles/(120,000 km)/
60 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect drive shaft boots (4WD models)
• Inspect transfer case oil (4WD models)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)
Severe maintenance:
Not Applicable. Proceed to next interval.
90,000 miles/(144,000 km)/
72 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace Intelligent Key battery
• Perform tire rotation
• Lubricate propeller shaft grease (4WD
models)Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

105,000 miles/(168,000 km)/
84 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect propeller shaft (4WD models)
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine coolant (1)
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Replace spark plugs (2)
• Lubricate propeller shaft grease (4WD
models)
• Perform tire rotation
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) First replacement interval is 105,000
miles (168,000 km) or 84 months. After first
replacement, replace every 75,000 miles
(120,000 km) or 60 months.
(2) Replace spark plug when the gap exceeds
0.053 in (1.35 mm) even if within specified
replacement mileage.
120,000 miles/(192,000 km)/
96 months
Standard maintenance:
• Inspect brake lines and cables
• Inspect brake pads and rotors
• Inspect engine drive belts
• Inspect fuel tank vapor vent system hoses
• Inspect fuel lines/connections
• Inspect exhaust system
• Inspect propeller shaft (4WD models)
• Inspect steering gear and linkage
• Inspect axle and suspension parts
• Inspect differential gear oil
• Inspect transfer case oil (4WD models)
• Inspect drive shaft boots (4WD models)
• Replace engine air filter (1)
• Replace brake fluid
• Replace engine oil and filter
• Replaced in-cabin microfilter
• Perform tire rotation
•
Lubricate propeller shaft grease (4WD models)
Severe maintenance:
Not Applicable. Proceed to next interval.
(1) If operating mainly in dusty conditions,
more frequent maintenance may be required.

WAA0134X
VK56VD ENGINE
1. Window washer fluid reservoir(P.8-10)
2. Fuse/fusible link holder (P.8-18)
3. Engine oil dipstick (P.8-6)
4. Power steering fluid reservoir (P.8-8) 5. Engine oil filler cap (P.8-6)
6. Brake fluid reservoir (P.8-9)
7. Fuse/fusible link holder (P.8-18)
8. Battery (P.8-11)
9. Radiator filler cap (P.8-4)
10. Engine coolant reservoir (P.8-4)11. Drive belts (P.8-13)
12. Air cleaner (P.8-14)
Illustrated table of contents0-13
ENGINE COMPARTMENT

2-12Instruments and controls
CHECKING LIGHTS
With all doors closed, apply the parking
brake, fasten the seat belts and place the
ignition switch in the ON position without
starting the engine. The following lights (if
so equipped) will come on:
,or,,,,
The following lights (if so equipped) will
come on briefly and then go off:
,or,,,,,,
If any light does not come on or operates in a
way other than described, it may indicate a
burned-out bulb and/or a system malfunc-
tion. Have the system checked. It is recom-
mended you visit an INFINITI retailer for this
service.
Some indicators and warnings are also
displayed on the vehicle information display
between the speedometer and tachometer.
(See “Vehicle information display” (P.2-20).)
WARNING/INDICATOR LIGHTS
(red)
See “Vehicle information display” (P.2-20).
Automatic Transmission (AT)
oil temperature warning light
This light illuminates when the Automatic
Transmission (AT) oil temperature is too
high. If the light illuminates while driving,
reduce the vehicle speed as soon as safely
possible until the light turns off.
CAUTION
Continued vehicle operation when the
AT oil temperature warning light is on
may damage the AT.
Automatic Transmission (AT)
park warning light (4WD models)
This light indicates that the Automatic
Transmission (AT) parking function is not
engaged. If the transfer control is not
secured in any driving position while the AT
shift lever is in the P (Park) position, the
transmission will disengage and the wheels
will not lock. If the AT park warning light illuminates with
the shift lever in the P (Park) position, shift
the Four-Wheel Drive (4WD) shift switch
to the AUTO, 4H or 4L position again with
the shift lever in the N (Neutral) position.
(See “INFINITI all-mode 4WD
®” (P.5-113).)
orBrake warning light
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator:
When the ignition switch is in the ON
position, the light comes on when the
parking brake is applied.
Low brake fluid warning light:
When the ignition switch is in the ON
position, the light warns of a low brake fluid
level. If the light comes on while the engine is
running with the parking brake not applied,
stop the vehicle and perform the following:
1. Check the brake fluid level. If brake fluid
is low, add fluid and have the system
checked. It is recommended you have this
service performed by an INFINITI retai-
ler. (See “Brake fluid” (P.8-9).)
2. If the brake fluid level is correct, have the warning system checked. It is recom-
mended you have this service performed
by an INFINITI retailer.

Low hydraulic pressure warning indicator:
If the brake warning light illuminates when
the engine is running, or while driving with
the parking brake is released, check the
brake fluid level. If the brake fluid level is
sufficient, it may indicate low hydraulic
pressure in the brake booster. Have the
brake system checked. It is recommended
you have this service performed by an
INFINITI retailer.
Anti-lock Braking System (ABS) warning
indicator:
When the parking brake is released and the
brake fluid level is sufficient, if both the
brake warning light and the Anti-lock Brak-
ing System (ABS) warning light illuminate, it
may indicate the ABS is not functioning
properly. Have the brake system checked,
and if necessary repaired. It is recommended
you visit an INFINITI retailer for this service.
(See “Anti-lock Braking System (ABS) warn-
ing light” (P.2-15).)
WARNING
.Your brake system may not be work-
ing properly if the warning light is on.
Driving could be dangerous. If you
judge it to be safe, drive carefully to
the nearest service station for re- pairs. Otherwise, have your vehicle
towed because driving it could be
dangerous.
. Pressing the brake pedal with the
engine stopped and/or low brake
fluid level may increase your stopping
distance and braking will require
greater pedal effort as well as pedal
travel.
. If the brake fluid level is below the
minimum or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked. It is
recommended you visit an INFINITI
retailer for this service.
Charge warning light
If the light comes on while the engine is
running, it may indicate the charging system
is not functioning properly. Turn the engine
off and check the alternator belt. If the belt is
loose, broken, missing or if the light remains
on, have your vehicle serviced immediately. It
is recommended you visit an INFINITI re-
tailer for this service.
CAUTION
Do not continue driving if the alternator
belt is loose, broken or missing.
Engine oil pressure warning
light
This light warns of low engine oil pressure. If
the light flickers or comes on during normal
driving, pull off the road in a safe area, stop
the engine immediately and call an INFINITI
retailer or other authorized repair shop.
The engine oil pressure warning light is not
designed to indicate a low oil level. Use the
dipstick to check the oil level. (See “Engine
oil” (P.8-6).)
CAUTION
Running the engine with the engine oil
pressure warning light on could cause
serious damage to the engine almost
immediately. Such damage is not cov-
ered by warranty. Turn off the engine as
soon as it is safe to do so.
Instruments and controls2-13

parking brake is applied. Stop the vehicle and
release the parking brake.
11. Low Fuel
This warning appears when the fuel level in
the tank is getting low. Refuel as soon as it is
convenient, preferably before the fuel gauge
reaches the 0 (Empty) position.
There is a small reserve of fuel remaining in
the tank when the fuel gauge reaches the 0
(Empty) position.
12. Low Washer Fluid
This warning appears when the washer tank
fluid is at a low level. Add washer fluid as
necessary. (See “Window washer fluid” (P.8-
10).)
13. Loose Fuel Cap
This warning appears when the fuel-filler
cap is not tightened correctly after the
vehicle has been refueled. (See “Fuel-filler
cap” (P.3-27).)
14. Tire Pressure Low Add Air
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and low tire pressure is detected. The
warning appears each time the ignition
switch is placed in the ON position as long
as the low tire pressure warning lightremains illuminated. If this warning appears,
stop the vehicle and adjust the tire pressure
to the recommended COLD tire pressure
shown on the Tire and Loading Information
label. (See “Low tire pressure warning light”
(P.2-16) and “Tire Pressure Monitoring
System (TPMS)” (P.5-5).)
15. SNOW mode indicator
This indicator appears when SNOW mode is
selected by the SNOW mode switch. (See
“SNOW mode” (P.5-122).)
16. Four-Wheel Drive (4WD) shift
indicator (4WD models)
This indicator shows the Four-Wheel Drive
(4WD) driving mode (AUTO, 4HI or 4LO)
that is selected by the 4WD shift switch.
(See “INFINITI all-mode 4WD
®” (P.5-113).)
17. Door/liftgate open warning
(ignition switch is in the ON posi-
tion)
This warning appears if any of the doors
and/or the liftgate are open or not closed
securely. The vehicle icon indicates which
door or the liftgate is open on the display.
18. Power will turn off to save the
battery
This warning appears after a period of time
if the ignition switch is in ACC or ON
position.
19. Power turned off to save the
battery
This warning appears after the ignition
switch is automatically turned OFF to save
the battery.
20. Light reminder warning
This warning appears when the driver side
door is opened with the headlight switch is
left ON and the ignition switch is placed in
the OFF or LOCK position. Place the head-
light switch in OFF or AUTO position. For
additional information, see “Headlight and
turn signal switch” (P.2-40).
21. Vehicle ahead detection indica-
tor
This indicator shows the status of the
following systems, if the vehicle is equipped
with them.
.
Forward Emergency Braking (FEB) with
pedestrian detection system
. Predictive Forward Collision Warning
(PFCW)
Instruments and controls2-25

Daytime running light system
The daytime running lights automatically
illuminate when the engine is started with
the parking brake released. The daytime
running lights operate with the headlight
switch in the OFF position or in the
position. Turn the headlight switch to theposition for full illumination when driv-
ing at night.
If the parking brake is applied before the
engine is started, the daytime running lights
do not illuminate. The daytime running lights
illuminate once the parking brake is released.
The daytime running lights will remain on
until the ignition switch is pushed to the OFF
position.
WARNING
When the daytime running light system
is active, tail lights on your vehicle are
not on. It is necessary at dusk to turn on
your headlights. Failure to do so could
cause an accident injuring yourself and
others.
Adaptive Front lighting System
(AFS) (if so equipped)
The Adaptive Front lighting System (AFS)
will automatically adjust the headlights (low
beam) toward the turning direction to
improve the driver’s view. When the head-
light switch is ON and the driver operates
the steering wheel in a turn, the AFS system
will be activated.
The AFS will operate:
. when the headlight switch is ON.
. when the shift lever is in any position
other than P (Park) or R (Reverse).
. when the vehicle is driven at above 3
MPH (5 km/h) for the left-side head-
light. Note that the right-side low beam
headlight will swivel but the left-side
headlight will not swivel when the vehicle
is below 3 MPH (5 km/h) and the
steering wheel is turned.
AFS will also adjust the headlight to a proper
axis automatically, depending on the number
of occupants in the vehicle, the load the
vehicle is carrying and the road conditions.
If the AFS OFF indicator light blinks after
the ignition switch has been pushed to the
ON position, this may indicate that the AFS
is not functioning properly. Have the system
checked. It is recommended you visit an
INFINITI retailer for this service. When the engine is started, the headlights will vibrate
to check the system condition. This is not a
malfunction.HEADLIGHT WASHER (if so
equipped)
The headlight washer operates when the
headlight is on and the ignition switch is in
the ON position.
Pull the windshield washer switch toward
you. The headlight washer operates with the
windshield washer operation. This operation
activates once each time either the ignition
switch or the headlight switch is turned off
and on.
After the first operation, the headlight
washer operates once at every fifth opera-
tion of the windshield washer.
CAUTION
.
Do not operate the washer continu-
ously for longer than 30 seconds.
. Do not operate the headlight washer
if the window washer fluid reservoir
is empty.
Instruments and controls2-45

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