check engine light INFINITI QX80 2021 Owner's Manual

0-14Illustrated table of contents
Red lightNamePage
Automatic Transmission (AT)
oil temperature warning light 2-12
Automatic Transmission (AT)
park warning light2-12
Brake warning light
2-12
Charge warning light 2-13
Engine oil pressure warning
light2-13
Master warning light 2-14
Seat belt warning light 2-14
Security indicator light 2-14
Supplemental air bag warn-
ing light2-14Yellow
light Name Page
Adaptive Front lighting Sys-
tem (AFS) indicator light (if so
equipped) 2-15
Anti-lock Braking System
(ABS) warning light
2-15
Automatic Transmission (AT)
check warning light2-15
Check suspension indicator
light2-15
Four-Wheel Drive (4WD)
warning light (4WD models)
2-15
Forward Emergency Braking
(FEB) system warning light2-16
Low tire pressure warning
light
2-16
Malfunction Indicator Light
(MIL) 2-17
Master warning light 2-18
Vehicle Dynamic Control
(VDC) off indicator light2-18
Vehicle Dynamic Control
(VDC) warning light
2-18Other
light Name Page
Exterior light indicator
2-19
Front fog light indicator light2-19
Front passenger air bag sta-
tus light2-19
High beam assist indicator
light
2-19
High beam indicator light
2-19
TOW mode indicator light 2-19
Turn signal/hazard indicator
lights2-19
WARNING AND INDICATOR LIGHTS

2 Instruments and controls
Cockpit ........................................................................\
......... 2-3
Instrument panel ............................................................... 2-5
Meters and gauges .......................................................... 2-6Speedometer and odometer ..................................... 2-7
Tachometer ................................................................... 2-8
Engine coolant temperature gauge ....................... 2-8
Fuel gauge ..................................................................... 2-9
Engine oil pressure gauge ......................................... 2-9
Voltmeter ..................................................................... 2-10
Warning lights, indicator lights and audible
reminders ........................................................................\
... 2-11 Checking lights ........................................................... 2-12
Warning/indicator lights (red) ............................... 2-12
Warning/indicator lights (yellow) ......................... 2-15
Warning/indicator lights (other) ........................... 2-19
Audible reminders ..................................................... 2-19
Vehicle information display .......................................... 2-20 Operational indicators ............................................. 2-24
Trip computer ............................................................. 2-31
Clock and outside air temperature ....................... 2-33
Security systems ............................................................. 2-34 Vehicle Security System .......................................... 2-34
INFINITI Vehicle Immobilizer System .................. 2-35
Wiper and washer switch ............................................. 2-36 Washer operation ..................................................... 2-37 Rain-sensing auto wiper system ........................ 2-38
Rear window wiper and washer operation ..... 2-39
Rear window and outside mirror
defroster switch ............................................................. 2-39 Rear window and outside mirror defroster ..... 2-39
Headlight and turn signal switch .............................. 2-40
Headlight switch .................................................... 2-40
Headlight washer (if so equipped) ..................... 2-45
Instrument brightness control ............................. 2-46
Turn signal switch ................................................... 2-46
Fog light switch ....................................................... 2-47
Heated steering wheel ................................................. 2-47
Horn ........................................................................\
.......... 2-48
Heated seats .................................................................. 2-48 Front ........................................................................\
... 2-49
Rear (if so equipped) ............................................. 2-50
Climate controlled seats (if so equipped) ............... 2-50
Warning systems switch .............................................. 2-52
SNOW mode switch ..................................................... 2-52
TOW mode switch ......................................................... 2-53
Vehicle Dynamic Control (VDC) OFF switch ......... 2-53
Rear door alert ................................................................ 2-54 Turning the rear door alert
system ON/OFF ..................................................... 2-54
System operation .................................................... 2-55

Warning indicator light (red)Warning indicator light (yellow)Vehicle Dynamic Control (VDC) off in-
dicator light
Automatic Transmission (AT) oil tem-
perature warning lightAdaptive Front lighting System (AFS)
indicator light (if so equipped)Vehicle Dynamic Control (VDC) warning
light
Automatic Transmission (AT) park
warning lightAnti-lock Braking System (ABS) warning
lightWarning indicator light (other)
Exterior light indicator
Brake warning lightAutomatic transmission check warning
lightFront fog light indicator light
Charge warning lightCheck suspension indicator lightFront passenger air bag status light
Engine oil pressure warning lightFour-Wheel Drive (4WD) warning light
(4WD models)High beam assist indicator light
Master warning lightForward Emergency Braking (FEB) sys-
tem warning lightHigh beam indicator light
Seat belt warning light and chimeLow tire pressure warning lightTOW mode indicator light
Security indicator lightMalfunction Indicator Light (MIL)Turn signal/hazard indicator lights
Supplemental air bag warning lightMaster warning light
Instruments and controls2-11
WARNING LIGHTS, INDICATOR
LIGHTS AND AUDIBLE REMINDERS

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

For additional information, see “Supplemen-
tal restraint system” (P.1-52).
WARNING
If the supplemental air bag warning light
is on, it could mean that the front air
bag, side air bag, curtain air bag systems
and/or pretensioner systems will not
operate in an accident. To help avoid
injury to yourself or others, have your
vehicle checked by a retailer as soon as
possible.
WARNING/INDICATOR LIGHTS
(yellow)
See “Vehicle information display” (P.2-20).
Adaptive Front lighting Sys-
tem (AFS) indicator light (if so
equipped)
When the ignition switch is pushed to the
ON position, the Adaptive Front lighting
System (AFS) indicator light will illuminate.
The light will turn off in about 1 second if the
AFS is operational.
If the AFS indicator light blinks, it may
indicate the AFS is not functioning properly. Have the system checked. It is recommended
you visit an INFINITI retailer for this service.
See “Adaptive Front lighting System (AFS)”
(P.2-45).
orAnti-lock Braking
System (ABS) warning light
When the ignition switch is in the ON
position, the Anti-lock Braking System
(ABS) warning light illuminates and then
turns off. This indicates the ABS is opera-
tional.
If the ABS warning light illuminates while the
engine is running, or while driving, it may
indicate the ABS is not functioning properly.
Have the system checked. It is recommended
you visit an INFINITI retailer for this service.
If an ABS malfunction occurs, the anti-lock
function is turned off. The brake system then
operates normally, but without anti-lock
assistance. (See “Brake system” (P.5-123).)
Automatic transmission check
warning light
When the ignition switch is pushed to the
ON position, the light comes on for 2
seconds. If the light comes on at any other
time, it may indicate the transmission is not
functioning properly. It is recommend you visit an INFINITI retailer to check and repair
the transmission.
Check suspension indicator
light
When the ignition switch is placed in the ON
position, the light comes on for 2 seconds.
Four-Wheel Drive (4WD)
warning light (4WD models)
Thewarning light comes on when the
ignition switch is pushed to ON. It turns off
soon after the engine is started.
If the 4WD system malfunctions, or the
diameter of the front and the rear wheels are
different, the warning light will either remain
illuminated or blink. (See “INFINITI all-mode
4WD
®” (P.5-113).)
CAUTION
. If the warning light comes on while
driving there may be a malfunction in
the 4WD system. Reduce the vehicle
speed and have your vehicle checked
as soon as possible. It is recom-
mended you visit an INFINITI retailer
for this service.
Instruments and controls2-15

2-16Instruments and controls
.If the 4WD warning light turns on
when driving on dry or hard surfaced
roads:
— in the 4H(I) position, shift the 4WD shift switch to AUTO
— in the 4L(O) 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 warning light is still on after the
above operations, have your vehicle
checked as soon as possible. It is
recommended you visit an INFINITI
retailer for this service.
Forward Emergency Braking
(FEB) system warning light
This light comes on when the ignition switch
is placed in the ON position. It turns off after
the engine is started.
This light illuminates when the Forward
Emergency Braking (FEB) with pedestrian
detection system is set to OFF on the lower
display.
If the light illuminates when the FEB with
pedestrian detection system is ON, it may
indicate that the system is unavailable. See “Forward Emergency Braking (FEB) with
pedestrian detection” (P.5-95) for more de-
tails.
Low tire pressure warning light
Your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) that monitors
the tire pressure of all tires except the spare.
The low tire pressure warning light warns of
low tire pressure or indicates that the TPMS
is not functioning properly.
After the ignition switch is pushed ON, this
light illuminates for about 1 second and
turns off.
Low tire pressure warning:
If the vehicle is being driven with low tire
pressure, the warning light will illuminate. A
"Tire Pressure Low Add Air" warning also
appears in the vehicle information display.
The tire pressure for each tire will also be
displayed.
When the low tire pressure warning light
illuminates, you should stop and adjust the
tire pressure to the recommended COLD tire
pressure shown on the Tire and Loading
Information label. The low tire pressure
warning light does not automatically turn
off when the tire pressure is adjusted. After
the tire is inflated to the recommended
pressure, the vehicle must be driven atspeeds above 16 MPH (25 km/h) to activate
the TPMS and turn off the low tire pressure
warning light. Use a tire pressure gauge to
check the tire pressure.
The "Tire Pressure Low Add Air" warning
appears each time the ignition switch is
placed in the ON position as long as the
low tire pressure warning light remains
illuminated.
For additional information, see “Vehicle
information display” (P.2-20), “Tire Pressure
Monitoring System (TPMS)” (P.5-5) and
“Tire Pressure Monitoring System (TPMS) ”
(P.6-3).
TPMS malfunction:If the TPMS is not functioning properly, the
low tire pressure warning light will flash for
approximately 1 minute when the ignition
switch is pushed ON. The light will remain on
after 1 minute. Have the system checked. It
is recommended you visit an INFINITI re-
tailer for this service. The "Tire Pressure Low
Add Air" warning does not appear if the low
tire pressure warning light illuminates to
indicate a TPMS malfunction.
For additional information, see “Tire Pres-
sure Monitoring System (TPMS)” (P.5-5).

WARNING
.If the light does not illuminate with
the ignition switch pushed ON, have
the vehicle checked as soon as possi-
ble. It is recommended you visit an
INFINITI retailer for this service.
. If the light illuminates while driving,
avoid sudden steering maneuvers or
abrupt braking, reduce vehicle speed,
pull off the road to a safe location
and stop the vehicle as soon as
possible. Driving with under-inflated
tires may permanently damage the
tires and increase the likelihood of
tire failure. Serious vehicle damage
could occur and may lead to an
accident and could result in serious
personal injury. Check the tire pres-
sure for all four tires. Adjust the tire
pressure to the recommended COLD
tire pressure shown on the Tire and
Loading Information label to turn the
low tire pressure warning light OFF.
If the light still illuminates while
driving after adjusting the tire pres-
sure, a tire may be flat or the TPMS
may be malfunctioning. If you have a
flat tire, replace it with a spare tire as
soon as possible. If no tire is flat and
all tires are properly inflated, it is recommended you consult an
INFINITI retailer.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the
TPMS will not function and the low
tire pressure warning light will flash
for approximately 1 minute. The light
will remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.
. Replacing tires with those not origin-
ally specified by INFINITI could affect
the proper operation of the TPMS.
CAUTION
.The TPMS is not a substitute for the
regular tire pressure check. Be sure to
check the tire pressure regularly.
. If the vehicle is being driven at speeds
of less than 16 MPH (25 km/h), the
TPMS may not operate correctly.
. Be sure to install the specified size of
tires to the four wheels correctly.
Malfunction Indicator Light
(MIL)
If the malfunction indicator light comes on
steady or blinks while the engine is running,
it may indicate a potential emission control
malfunction.
The malfunction indicator light may also
come on steady if the fuel-filler cap is loose
or missing, or if the vehicle runs out of fuel.
Check to make sure the fuel-filler cap is
installed and closed tightly, and that the
vehicle has at least 3 US gallons (14 liters) of
fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission
control system malfunction exists.
If this indicator light remains on for 20
seconds and then blinks for 10 seconds
when the engine is not running, it indicates
that the vehicle is not ready for an emission
control system inspection/maintenance test.
(See “Readiness for Inspection/Mainte-
nance (I/M) test” (P.10-34).)
Operation:
The malfunction indicator light will come on
in one of two ways:
. Malfunction indicator light on steady —
An emission control system malfunction
has been detected. Check the fuel-filler
Instruments and controls2-17

2-18Instruments and controls
cap if the Loose Fuel Cap warning
appears in the vehicle information dis-
play. If the fuel-filler cap is loose or
missing, tighten or install the cap and
continue to drive the vehicle. The
light should turn off after a few driving
trips. If thelight does not turn off
after a few driving trips, have the vehicle
inspected. It is recommended you visit an
INFINITI retailer for this service. You do
not need to have your vehicle towed to
the retailer.
. Malfunction indicator light blinking — An
engine misfire has been detected which
may damage the emission control sys-
tem.
To reduce or avoid emission control
system damage:
1) Do not drive at speeds above 45 MPH (72 km/h).
2) Avoid hard acceleration or decelera- tion.
3) Avoid steep uphill grades.
4) If possible, reduce the amount of cargo being hauled or towed.
The malfunction indicator light may stop
blinking and remain on.
Have the vehicle inspected. It is recom-
mended you visit an INFINITI retailer for
this service. You do not need to have
your vehicle towed to the retailer.
CAUTION
Continued vehicle operation without
having the emission control system
checked and repaired as necessary could
lead to poor driveability, reduced fuel
economy, and possible damage to the
emission control system.
Master warning light
When the ignition switch is in the ON
position, the master warning light illumi-
nates when a warning message appears in
the vehicle information display.
See “Vehicle information display” (P.2-20).
Vehicle Dynamic Control
(VDC) off indicator light
When the ignition switch is in the ON
position, the Vehicle Dynamic Control
(VDC) off indicator light illuminates and then
turns off.
The light comes on when the vehicle dynamic
control off switch is pushed to OFF. This
indicates that the vehicle dynamic control
system is not operating.
When the 4L position is selected with the Four-Wheel Drive (4WD) shift switch, the
VDC system is disabled and the VDC off
indicator light illuminates. (4WD models)
For additional information, see “Vehicle
Dynamic Control (VDC) system” (P.5-125).
Vehicle Dynamic Control
(VDC) warning light
The light will blink when the VDC system or
the traction control system is operating, thus
alerting the driver that the vehicle is nearing
its traction limits. The road surface may be
slippery.
When the VDC warning light illuminates
when the VDC system is turned on, this light
alerts the driver to the fact that the VDC
system’s fail-safe mode is operating, for
example the VDC or hill start assist system
may not be functioning properly. Have the
system checked. It is recommended you visit
an INFINITI retailer for this service. If a
malfunction occurs in the system, the VDC
system function will be canceled but the
vehicle is still driveable. For additional
information, see “Vehicle Dynamic Control
(VDC) system” (P.5-125).

5. Confirm that the security indicator lightcomes on. The security indicator light
stays on for about 30 seconds. The
vehicle security system is now pre-
armed. After about 30 seconds the
vehicle security system automatically
shifts into the armed phase. The security
light begins to flash once every approxi-
mately 3 seconds. If, during this 30-
second pre-arm time period, the door is
unlocked, or the ignition switch is pushed
to ACC or ON, the system will not arm.
Even when the driver and/or passengers
are in the vehicle, the system will activate
with all doors, hood, and liftgate locked
with the ignition switch in the LOCK
position. When pushing the ignition switch
to the ACC or ON position, the system will
be released.
Vehicle security system activation
The vehicle security system will give the
following alarm:
. The headlights blink and the horn sounds
intermittently.
. The alarm automatically turns off after
approximately 50 seconds. However, the
alarm reactivates if the vehicle is tam-
pered with again. The alarm is activated by:
.
Unlocking the door or opening the lift-
gate without using the button on the
Intelligent Key, the door handle request
switch or the mechanical key. (Even if the
door is opened by releasing the door
inside lock knob, the alarm will activate.)
. Opening the hood.
How to stop an activated alarm
The alarm will stop when a door is unlocked
by pushing the unlock button on the Intelli-
gent Key, the door handle request switch or
using the mechanical key, or when the
ignition switch is pushed to the ACC or ON
position.
If the system does not operate as described
above, it is recommended you have it
checked by an INFINITI retailer.
INFINITI VEHICLE IMMOBILIZER
SYSTEM
The INFINITI Vehicle Immobilizer System
will not allow the engine to start without
the use of the registered Intelligent Key.
Never leave these keys in the vehicle.
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2)
this device must accept any interference
received, including interference that may
cause undesired operation.
NOTE:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions:
(1) this device may not cause interference,
and (2) this device must accept any inter-
ference, including interference that may
cause undesired operation of the device.
Instruments and controls2-35