2023 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.2-19)/ 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.2-19).
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

Supplemental air bag warning
light
After pushing the ignition switch to the ON
position, the supplemental air bag warning
light will illuminate. The supplemental air bag
warning light will turn off after about 7
seconds if the supplemental front air bag
and supplemental side air bag, curtain side-
impact air bag systems and/or pretensioner
seat belt are operational.
If any of the following conditions occur, the
supplemental front air bag, supplemental
side air bag, supplemental curtain side-
impact air bag and pretensioner seat belt
needs servicing.
. The supplemental air bag warning light
remains on after approximately 7 sec-
onds.
. The supplemental air bag warning light
flashes intermittently.
. The supplemental air bag warning light
does not come on at all.
It is recommended you visit an INFINITI
retailer for these services.
Unless checked and repaired, the Supple-
mental Restraint Systems and/or the pre-
tensioner seat belt may not function
properly.
For additional information, see “Supplemen- tal restraint system” (P.1-42).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 seat belt will not
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.2-19).
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.5-128).)
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.5-106) 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).
Instruments and controls2-13

ufacturer for the possible influences
before use.
. 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 (if
so equipped) as soon as possible. If no
tire is flat and all tires are properly
inflated, it is recommended you con- sult an INFINITI retailer.
. For models with run-flat tires,
although you can continue driving
with a punctured run-flat tire, re-
member that vehicle handling stabi-
lity is reduced, which could lead to an
accident and personal injury. Also,
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
Instruments and controls2-15

2-16Instruments and controls
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.
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.2-19).
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-

126).)
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.5-126).
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.
Vehicle Dynamic Control
(VDC) warning light
When the ignition switch is in the ON
position, the Vehicle Dynamic Control
(VDC) warning light illuminates and then
turns off.
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, active trace control func-
tion, Brake Force Distribution or hill start
assist system may not be functioning prop-
erly. Have the system checked. It is recom-
mended 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.5-131).
WARNING/INDICATOR LIGHTS
(other)
See “Vehicle information display” (P.2-19).
ECO drive indicator light
When the ignition switch is placed in the ON
position, the light will come on and then turn
off.
When the INFINITI Drive Mode Selector is
turned to the ECO mode, the ECO drive
indicator light will illuminate, blink or remain
off depending on the accelerator pedal
operation to help assist the driver to drive
economically. For more details, see “ECO
mode” (P.5-22).
Exterior light indicator
This indicator illuminates when the headlight
switch is turned to the AUTO,orposition and the front parking lights, instru-
ment panel lights, rear combination lights,
license plate lights or headlights are on. The
indicator turns off when these lights are
turned off.
Front fog light indicator light
The front fog light indicator light illuminates
when the front fog lights are on. (See “Fog
light switch” (P.2-43).)
Instruments and controls2-17

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 Ignition to OFF 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 Ignition to OFF
warning ?(Push the ignition switch ?
ignition switch position is turned to ON)
? Push Ignition to OFF 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.
Instruments and controls2-21