2021 INFINITI Q50 engine

2-6Instruments and controls
JVC0428X
1. Tachometer* (P.2-8)
2. Warning and indicator lights (P.2-10)
3. Speedometer* (P.2-7)
4. Engine coolant temperature gauge*(P.2-8) 5. Vehicle information display (P.2-18)/
Odometer/twin trip odometer (P.2-7)
6. Fuel gauge* (P.2-9)
*: The needle indicators may move slightly
after the ignition switch is placed in the
OFF position. This is not a malfunction.
CAUTION
. For cleaning, use a soft cloth, dam-
pened with water. Never use a rough
cloth, alcohol, benzine, thinner or any
kind of solvent or paper towel with a
chemical cleaning agent. They will
scratch or cause discoloration to the
lens.
. Do not spray any liquid such as water
on the meter lens. Spraying liquid
may cause the system to malfunction.
METERS AND GAUGES

2-8Instruments and controls
WAC0191X
TACHOMETER
The tachometer indicates engine speed in
revolutions per minute (RPM).Do not rev
the engine into the red zone
.
CAUTION
When engine speed approaches the red
zone, shift to a higher gear or reduce
engine speed. Operating the engine in
the red zone may cause serious engine
damage.
JVI0639X
ENGINE COOLANT TEMPERA-
TURE GAUGE
The gauge indicates the engine coolant
temperature.
The engine coolant temperature is within the
normal range when 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 the engine coolant
temperature is near the hot (H) end of
the normal range, reduce vehicle speed
to decrease the temperature. If the
gauge is over the normal range, stop
the vehicle as soon as safely possible and
let the engine idle. If the engine is
overheated, continued operation of the
vehicle may seriously damage the engine.
See “If your vehicle overheats” (P.6-7)
for immediate action required.

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. It is recommended you have the system
checked by an INFINITI retailer.
WARNING/INDICATOR LIGHTS
(red)
See “Vehicle information display” (P.2-18).
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 necessary, add fluid and have the
system checked. It is recommended you
have this service performed by an
INFINITI retailer. (See “Brake fluid”
(P.8-10).)
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.
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.2-13).)
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
Instruments and controls2-11

operate in an accident. To help avoid
injury to yourself or others, have your
vehicle checked. It is recommended you
visit an INFINITI retailer for this service.
WARNING/INDICATOR LIGHTS
(yellow)
See “Vehicle information display” (P.2-18).
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.5-125).)
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 FEB system is
set to OFF on the lower display.
If the light illuminates when the FEB system
is ON, it may indicate that the system is
unavailable. See “Forward Emergency Brak-
ing (FEB)” (P.5-102) for more details.
Front passenger air bag status
light
The front passenger air bag status light
() located on the instrument panel will be
lit and the passenger front air bag will be
OFF depending on how the front passenger
seat is being used.
For front passenger air bag status light
operation, see “INFINITI Advanced Air Bag
System (front seats)” (P.1-48).
Low fuel warning light
This light illuminates when the fuel in the
tank is getting low. Refuel as soon as it is
convenient, preferably before the fuel gauge
reaches the 0 (empty) position. There will be a small reserve of fuel remain-
ing in the tank when the fuel gauge reaches
the 0 position.
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
tire (if so equipped).
The low tire pressure warning light warns of
low tire pressure and flat tire (if so equipped)
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
second and turns off.
Low tire pressure warning:
If the vehicle is being driven with low tire
pressure, the warning light will illuminate.
The “Tire Pressure Low - Add Air” warning
also appears in the vehicle information dis-
play.
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
Instruments and controls2-13

driving a long distance at high speeds
may damage the tires.— Do not drive at speeds above 50 MPH (80 km/h) and do not drive
more than approximately 93 miles
(150 km) with a punctured run-
flat tire. The actual distance the
vehicle can be driven on a flat tire
depends on outside temperature,
vehicle load, road conditions and
other factors.
— If you detect any unusual sounds or vibrations while driving with a
punctured run-flat tire, pull off
the road to a safe location and
stop the vehicle as soon as possi-
ble. The tire may be seriously
damaged and need to be replaced.
. 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 the 1 minute.
Have your tires replaced and/or
TPMS system reset as soon as pos-
sible. 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 (11.4 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 (US only)” (P.10-23).)
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
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.
Instruments and controls2-15

2-16Instruments and controls
To reduce or avoid emission control
system damage:
1) Do not drive at speeds above 45MPH (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.2-18).
Power steering warning light
Models with Direct Adaptive Steering :
When the ignition switch is in the ON
position, the power steering warning light
illuminates. After starting the engine, the
power steering warning light stays on for a
few seconds and turns off. This indicates
that Direct Adaptive Steering is operational.
Drive the vehicle after the power steering
warning light turns off.
If the power steering warning light illumi-
nates while driving, pull off the road to a
safe location and stop the vehicle. If the
power steering warning light turns off, you
can drive again. If the power steering
warning light continues to illuminate, it is
recommended you have Direct Adaptive
Steering checked by an INFINITI retailer.
(See “Direct Adaptive Steering type” (P.5-
123).)
Models with electric power steering :
When the ignition switch is in the ON
position, the power steering warning light
illuminates. After starting the engine, the
power steering warning light turns off. This
indicates the electric power steering is
operational.
If the power steering warning light illumi-
nates while the engine is running, it may
indicate the electric power steering is not
functioning properly and may need servicing.
It is recommended you have the electric
power steering checked by an INFINITI
retailer.
When the power steering warning light
illuminates with the engine running, the
power assist to the steering will cease
operation but you will still have control of
the vehicle. At this time, greater steering
efforts are required to operate the steering
wheel, especially in sharp turns and at low
speeds.
See “Electric power steering type” (P.5-123).
Vehicle Dynamic Control
(VDC) off indicator light
When the ignition switch is placed in the ON
position, the light will come on and then turn
off.
The light comes on when the VDC off switch
is pushed to OFF. This indicates that the
VDC system and traction control system are
not operating.

INDICATORS FOR OPERATION
1. Engine start operation indicator
This indicator appears when the shift lever is
in the P (Park) position.
This indicator means that the engine will
start by pushing the ignition switch with the
brake pedal depressed. You can start the
engine directly in any position of the ignition
switch.
2. NO KEY warning
The warning appears when the door is
closed with the Intelligent Key left outside
the vehicle and the ignition switch in the
ACC or ON position. Make sure that the
Intelligent Key is inside the vehicle.
See “Intelligent Key system” (P.3-6) for more
details.
3. SHIFT “P” warning
This warning appears when the ignition
switch is pushed to stop the engine with
the shift lever in any position except the P
(Park) position.
If this warning appears, move the shift lever
to the P (Park) position or push the ignition
switch to the ON position.
An inside warning chime will also sound. (See
“Troubleshooting guide” (P.3-14).)
4. “PUSH” warning
This warning appears when the shift lever is
moved to the P (Park) position with the
ignition switch in the ACC position after the
SHIFT “P” warning appears.
To push the ignition switch to the OFF
position, perform the following procedure:
.SHIFT “P” warning ?(Move the shift
lever to “P”) ?PUSH warning ?(Push
the ignition switch ?ignition switch
position is turned to ON) ?PUSH
warning ?(Push the ignition switch ?
ignition switch position is turned to OFF)
5. Intelligent Key battery discharge
indicator
This indicator appears when the Intelligent
Key battery is running out of power.
If this indicator appears, replace the battery
with a new one. (See “Intelligent Key battery
replacement” (P.8-19).)
6. Engine start operation for Intel-
ligent Key system indicator
This indicator appears when the Intelligent
Key battery is running out of power and
when the Intelligent Key System and vehicle
are not communicating normally.
If this indicator appears, touch the ignition
switch with the Intelligent Key while depres- sing the brake pedal. (See “Intelligent Key
battery discharge” (P.5-14).)
7. Remote engine start indicator (if
so equipped)
This indicator appears when the engine has
been started using the remote engine start
function. To start the vehicle, depress the
brake pedal and place the ignition switch in
the ON position.
For more details, see “Remote engine start”
(P.3-19).
8. Key ID Incorrect warning
This warning appears when the ignition
switch is pushed from the LOCK position
and the Intelligent Key cannot be recognized
by the system. You cannot start the engine
with an unregistered key. Use the registered
Intelligent Key.
See “Intelligent Key system” (P.3-6).
9. Parking brake release warning
This warning appears when the vehicle
speed is above 4 MPH (7 km/h) and the
parking brake is applied.
10. Low fuel warning
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
Instruments and controls2-21

2-22Instruments and controls
reaches the empty (0) position.
There is a small reserve of fuel remaining in
the tank when the fuel gauge reaches the
empty (0) position.
11. Low washer fluid warning
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).)
12. Door/trunk open warning
This warning appears if any of the doors
and/or the trunk lid are open or not closed
securely. The vehicle icon indicates which
door or the trunk lid is open on the display.
13. Intelligent Key system warning
This warning appears if there is a malfunc-
tion in the Intelligent Key system.
If this warning appears while the engine is
stopped, the engine cannot be started. If this
warning appears while the engine is running,
the vehicle can be driven. However, in these
cases, have the system checked as soon as
possible. It is recommended you visit an
INFINITI retailer for this service.
14. Loose Fuel Cap warning
This warning appears when the fuel-filler
cap is not tightened correctly after thevehicle has been refueled. (See “Fuel-filler
cap” (P.3-25).)
15. Tire Pressure Low - Add Air
warning
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 light
remains illuminated. If this warning appears,
stop the vehicle and adjust the pressure to
the recommended COLD tire pressure
shown on the Tire and Loading Information
label. (See “Low tire pressure warning light”
(P.2-13) and “Tire Pressure Monitoring
System (TPMS)” (P.5-5).)
16. Flat Tire - Visit dealer warning
(if so equipped)
This warning appears when the low tire
pressure warning light in the meter illumi-
nates and one or more flat tires are detected
while driving. A chime also sounds for
approximately 10 seconds. (See “Low tire
pressure warning light” (P.2-13) and “Tire
Pressure Monitoring System (TPMS)” (P.5-
5).)
17. Low oil pressure warning
This warning appears if low engine oil
pressure is detected. If the warning appears
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 low oil pressure warning is not designed
to indicate a low oil level. Use the dipstick to
check the oil level. (See “Engine oil” (P.8-7).)
18. All-Wheel Drive (AWD) warning
(if so equipped)
This warning appears when the Intelligent
All-Wheel Drive (AWD) system is not func-
tioning properly while the engine is running.
The displayed message will vary depending
on the condition of the AWD system mal-
function. (See “Intelligent All-Wheel Drive
(AWD)” (P.5-120).)
19. Extended storage fuse warning
(if so equipped)
This warning may appear if the extended
storage fuse switch is not pushed in
(switched on). When this warning appears,
push in (switch on) the extended storage
fuse switch to turn off the warning. For
more information, see “Extended storage
fuse switch” (P.8-19).