2021 INFINITI QX50 engine

1. Tachometer
2. Warning and indicator lights
3. Vehicle information displayOdometer
Twin trip odometer
Transmission position indicator 4. Speedometer
5. Fuel gauge
6. Engine coolant temperature gauge
SPEEDOMETER AND
ODOMETER
This vehicle is equipped with a speedometer
and odometer. The speedometer is located
on the right side of the meter cluster. The
odometer is located within the vehicle infor-
mation display.
LIC4174
METERS AND GAUGES
2-4Instruments and controls

TACHOMETER
The tachometer indicates engine speed in
revolutions per minute (rpm). Do not rev the
engine into the red zone
O1.
CAUTION
When engine speed approaches the red
zone, reduce engine speed. Operating the
engine in the red zone may cause serious
engine damage.
ENGINE COOLANT
TEMPERATURE GAUGE
The gauge indicates the engine coolant tem-
perature. The engine coolant temperature is
within the normal range
O1when the gauge
needle points within the zone shown in the
illustration.
The engine coolant temperature varies with
the outside air temperature and driving
conditions.
CAUTION
If the gauge indicates coolant temperature
near the hot (H) end of the normal range,
reduce vehicle speed to decrease tempera-
ture. If the gauge is over the normal range,
stop the vehicle as soon as safely possible.
If the engine is overheated, continued op-
eration of the vehicle may seriously dam-
age the engine. For additional information,
see “If your vehicle overheats” (P. 6-7) for
immediate action required.
LIC3849LIC3850
2-6Instruments and controls

VARIABLE COMPRESSION
TURBO
Your engine is equipped with a variable com-
pression ratio system called “Variable Com-
pression Turbo”. This system can vary the
engine compression ratio continuously.
According to driving conditions, the system
applies optimum compression ratio auto-
matically to achieve both high output and
high fuel economy efficiency.This is not a physical gauge. It is a display
option in the vehicle information display that
can be selected. For additional information,
see “Vehicle information display” (P. 2-19).
1Compression ratio status display
Displays the status of compression ratio
controlled by Variable Compression
Turbo. The lowest compression ratio
(8:1) and the highest (14:1) are displayed
as “Power” and ”Eco” respectively.
2Turbo charger boost pressure gauge
Displays the turbo charger boost
pressure.
NOTE:
Under some conditions, the compression ra-
tio may not change. This is not a malfunction
of the system.
CAUTION
If the Variable Compression Turbo be-
comes faulty, the Malfunction Indicator
Light (MIL) may come on. For additional
information, see “Malfunction Indicator
Light (MIL)” (P. 2-15).
LIC3924
2-8Instruments and controls

Warning/Indicator light (red)Warning/Indicator light (yellow) Warning/Indicator light (other)
orBrake warning lightorAnti-lock Braking System (ABS)
warning lightAutomatic brake hold indicator light
(white/green)
Charge warning lightorElectronic parking brake
warning lightEco drive indicator light (green)
(if so equipped)
Electric shift control system warning lightForward Emergency Braking (FEB) with
Pedestrian Detection system warning lightFront fog light indicator light (green)
(if so equipped)
orElectronic parking brake
indicator lightFront passenger air bag status lightHigh Beam Assist indicator light (green)
Engine oil pressure warning lightLow tire pressure warning lightHigh beam indicator light (blue)
Master warning lightMalfunction Indicator Light (MIL)Side light and headlight indicator light
(green)
Seat belt warning light and chimeMaster warning lightTurn signal/hazard indicator lights (green)
Security indicator lightPower steering warning light
Supplemental air bag warning lightRear Automatic Braking (RAB) warning light
WARNING LIGHTS, INDICATOR
LIGHTS AND AUDIBLE REMINDERS
Instruments and controls2-9

Warning/Indicator light (red)Warning/Indicator light (yellow) Warning/Indicator light (other)
Slip indicator light
Vehicle Dynamic Control (VDC) OFF
indicator light
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) come on
briefly and then go off:
or,,,,,or,,
If any light fails to come on or operate 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 that you visit an INFINITI retailer for
this service. Some indicators and warnings are also dis-
played in the vehicle information display be-
tween the speedometer and tachometer. For
additional information, see “Vehicle informa-
tion display” (P. 2-19).
WARNING/INDICATOR LIGHTS
(red)
For additional information, see “Vehicle in-
formation display” (P. 2-19).
orBrake warning
light
This light functions for the foot brake system.
Low brake fluid warning light
When the ignition switch is placed 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. Add brake fluid
as necessary. For additional information,
see “Brake fluid” (P. 8-10).
2. If the brake fluid level is correct, have the warning system checked. It is recom-
mended that you visit an INFINITI retailer
for this service.
2-10Instruments and controls

WARNING
• Your brake system may not be working
properly if the warning light is on. Driv-
ing could be dangerous. If you judge it to
be safe, drive carefully to the nearest
service station for repairs. Otherwise,
have your vehicle towed because driving
it could be dangerous.
• Pressing the brake pedal with the engine
stopped and/or a 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 MINI-
MUM or MIN mark on the brake fluid
reservoir, do not drive until the brake
system has been checked. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
Charge warning light
If this light comes on while the engine is run-
ning, it may indicate the charging system is
not functioning properly. Turn the engine off
and check the generator belt. If the belt is
loose, broken, or missing or if the light re- mains on, have the system checked. It is rec-
ommended that you visit an INFINITI retailer
for this service.
CAUTION
Do not continue driving if the generator
belt is loose, broken or missing.
Electric shift control system
warning light
This light illuminates when a malfunction oc-
curs in the electric shift control system. When
the master warning light illuminates, the
chime sounds and the following message is
displayed in the vehicle information display:
“When parked apply parking brake”.
When the ignition is placed in the OFF posi-
tion, the chime sounds continuously. Ensure
the parking brake is applied
Have the system checked. It is recommended
that you visit an INFINITI retailer for this
service.
orElectronic parking
brake indicator
light
This light illuminates when the electronic
parking brake system is operating. When the ignition switch is placed in the ON
position, the electronic parking brake warn-
ing light illuminates. When the engine is
started and the parking brake is released, the
warning light turns off.
If the parking brake is not released, the elec-
tronic parking brake warning light remains
illuminated. Ensure the electronic parking
brake warning light has turned off before
driving.
If the electronic parking brake warning light
illuminates or flashes while the electronic
parking brake system warning light
or(yellow) illuminates, it may indicate that
the electronic parking brake system is not
functioning properly. Have the system
checked. It is recommended that you visit an
INFINITI retailer for this service.
For additional information, see “Electronic
parking brake” (P. 5-23).
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.
Instruments and controls2-11

The engine oil pressure warning light is not
designed to indicate a low oil level.Use the
dipstick to check the oil level. For additional
information, see “Engine oil” (P. 8-6).
CAUTION
Running the engine with the engine oil
pressure warning light on could cause seri-
ous damage to the engine almost immedi-
ately. Such damage is not covered by war-
ranty. Turn off the engine as soon as it is
safe to do so.
Master warning light
When the ignition switch is in the ON posi-
tion, the master warning light illuminates if
any of the following (if so equipped) are dis-
played on the vehicle information display:
• Parking brake warning
• Door warning (when vehicle is moving)
• Shift position warning
• Low battery warning
• Handle Release warning
For additional information, see “Vehicle in-
formation display” (P. 2-19).
Seat belt warning light and
chime
The light and chime remind you to fasten your
seat belts. The light illuminates whenever the
ignition switch is placed in the ON position
and remains illuminated until the driver's seat
belt is fastened. At the same time, the chime
sounds for about 6 seconds unless the driv-
er's seat belt is securely fastened.
The seat belt warning light may also illumi-
nate if the front passenger's seat belt is not
fastened when the front passenger's seat is
occupied. For 7 seconds after the ignition
switch is placed in the ON position, the sys-
tem does not activate the warning light for
the front passenger.
The 2nd row seats may be also equipped with
a seat belt warning light.
For additional information, see “Seat belts”
(P. 1-11).
Security indicator light
This light blinks when the ignition switch is
placed in the OFF or LOCK position.
The blinking security indicator light indicates
that the security systems equipped on the
vehicle are operational. For additional information, see “Security sys-
tems” (P. 2-29).
Supplemental air bag
warning light
When the ignition switch is placed in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and then
turns off. This means the system is
operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain air bag, and
pretensioner seat belt systems need
servicing:
• The supplemental air bag warning light re-
mains on after approximately 7 seconds.
• The supplemental air bag warning light flashes intermittently.
• The supplemental air bag warning light does not come on at all.
It is recommended that you visit an INFINITI
retailer for these services.
Unless checked and repaired, the supplemen-
tal restraint system (air bag system) and/or
the pretensioners may not function properly.
For additional information, see “Supplemen-
tal Restraint System (SRS)” (P. 1-41).
2-12Instruments and controls

WARNING
If the supplemental air bag warning light is
on, it could mean that the front air bag, side
air bag, curtain air bag and/or preten-
sioner systems will not operate in an acci-
dent. To help avoid injury to yourself or
others, have your vehicle checked as soon
as possible. It is recommended that you
visit an INFINITI retailer for this service.
WARNING/INDICATOR LIGHTS
(yellow)
For additional information, see “Vehicle in-
formation display” (P. 2-19).
orAnti-lock Braking
System (ABS)
warning light
When the ignition switch is placed in the ON
position, the ABS warning light illuminates
and then turns off. This indicates the ABS is
operational.
If the ABS light comes on while the engine is
running, it may indicate the anti-lock braking
system is not functioning properly. Have the
system checked. It is recommended that 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 as-
sistance. For additional information, see
“Brake system” (P. 5-152).
orElectronic parking
brake warning light
The electronic parking brake system warning
light functions for the electronic parking
brake system. If the warning light illuminates,
it may indicate the electronic parking brake
system is not functioning properly. Have the
system checked. It is recommended that you
visit an INFINITI retailer for this service.
For additional information, see “Electronic
parking brake” (P. 5-23).
Forward Emergency
Braking (FEB) with
Pedestrian Detection
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 FEB with Pe-
destrian Detection system is set to OFF in the
lower display. If the light illuminates when the FEB with
Pedestrian Detection system is on, it may
indicate that the system is unavailable. For
additional information, see “Forward Emer-
gency Braking (FEB) with Pedestrian Detec-
tion” (P. 5-123) and “Predictive Forward Col-
lision Warning (PFCW)” (P. 5-133).
Front passenger air bag
status light
The front passenger air bag status light will
be lit and the passenger front air bag will be
off depending on how the front passenger
seat is being used.
For additional information, see “Front pas-
senger air bag and status light” (P. 1-51).
Low tire pressure warning
light
Your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) that monitors the
tire pressure of all tires.
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 placed in the ON
position, this light illuminates for about 1 sec-
ond and turns off.
Instruments and controls2-13