2023 INFINITI Q50 check engine light

that people become locked inside the trunk
or in the event of the loss of electrical power
such as a discharged battery.
Releasing inside the trunk
To open the trunk lid from the inside, pull the
release handleuntil the lock releases and
push up on the trunk lid. The release lever is
made of a material that glows in the dark
after a brief exposure to ambient light.
The handle is located on the back of the
trunk lid as illustrated.
Releasing from the rear seat
You can access the release handle through
the trunk pass-through (rear seat armrest).
(See “Armrest” (P.1-7).)
To open the trunk lid from the rear seat, pull
the release handle towards front of vehicle
until the lock releases.
If you cannot reach the release handle,
contact an INFINITI retailer.SPA2735
OPENING THE FUEL-FILLER
DOOR
To open the fuel-filler door, unlock the fuel-
filler door by using one of the following
operations, then push the upper left side of
the door.
. Touch the one touch unlock sensor on
one of the front door handles and then
push the door handle request switch
while carrying the Intelligent Key.
. Push the UNLOCK button on the Intel-
ligent Key twice.
. Push the power door lock switch to the
UNLOCK position. To lock, close the fuel-filler door securely
and lock all doors by operating the door
handle request switch, the LOCK button on
the Intelligent Key or the power door lock
switch.
FUEL-FILLER CAP
WARNING
.
Gasoline is extremely flammable and
highly explosive under certain condi-
tions. You could be burned or ser-
iously injured if it is misused or
mishandled. Always stop engine and
do not smoke or allow open flames or
sparks near the vehicle when refuel-
ing.
. Do not attempt to top off the fuel
tank after the fuel pump nozzle shuts
off automatically. Continued refuel-
ing may cause fuel overflow, resulting
in fuel spray and possibly a fire.
. Use only an original equipment type
fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious
malfunction and possible injury. It
could also cause the Malfunction
Pre-driving checks and adjustments3-25
FUEL-FILLER DOOR

3-30Pre-driving checks and adjustments
SPA2450-A
Automatic anti-glare type
The inside mirror is designed so that it
automatically changes reflection according
to the intensity of the headlights of the
following vehicle.
The anti-glare system will be automatically
turned on when the ignition switch is pushed
to the ON position.
The anti-glare system also operates for the
outside mirrors (if so equipped).
When the anti-glare system is turned on, the
indicator light
will illuminate and excessive
glare from the headlights of the vehicle
behind you will be reduced.
Push the “*” switch
to make the inside mirror operate normally. The indicator light
will turn off. Push the “I” switch
to turn the
system on.
Do not allow any object to cover the sensors
or apply glass cleaner on them. Doing so
will reduce the sensitivity of the sensor,
resulting in improper operation.
For the HomeLink
®Universal Transceiver
operation, see “HomeLink®Universal Trans-
ceiver” (P.2-61).
OUTSIDE MIRRORS
WARNING
Objects viewed in the outside mirror on
the passenger side are closer than they
appear. Be careful when moving to the
right. Using only this mirror could cause
an accident. Use the inside mirror or
glance over your shoulder to properly
judge distances to other objects.
JVP0246X
Adjusting outside mirrors
The outside mirror control switch is located
on the driver’s armrest.
The outside mirror will operate only when
the ignition switch is in the ACC or ON
position.
Move the switch
right or left to select the
right or left side mirror, then adjust using the
control switch
.
Defrosting outside mirrors
The outside mirrors will be heated when the
rear window defroster switch is operated.
If the engine is started using the remote start
function (if so equipped) when the outside

the object projects over the actual backing
up course.
HOW TO PARK WITH PREDIC-
TIVE COURSE LINES
WARNING
.If the tires are replaced with different
sized tires, the predictive course lines
may not be displayed correctly.
. On a snow-covered or slippery road,
there may be a difference between
the predictive course lines and the
actual course line.
. The displayed lines will appear
slightly off to the right because the
rearview camera is not installed in the
rear center of the vehicle.
. If the battery is disconnected or
becomes discharged, the predictive
course lines may be displayed incor-
rectly. If this occurs, please perform
the following procedures:
— Turn the steering wheel from lock to lock while the engine is running.
— Drive the vehicle on a straight road for more than 5 minutes.
WAE0528X
1. Visually check that the parking space is safe before parking your vehicle.
2. The rear view of the vehicle is displayed on the screen
when the shift lever is
moved to the R (Reverse) position.
WAE0529X
3. Slowly back up the vehicle adjusting the steering wheel so that the predictive
course lines
enter the parking space.
4. Maneuver the steering wheel to make the vehicle width guide lines
parallel to
the parking spacewhile referring to
the predictive course lines.
Monitor, climate, audio, phone and voice recognition systems4-7

SAA2244
Backing up behind a projecting object:
The position
is shown farther than the
positionin the display. However, the
positionis actually at the same distance
as the position. The vehicle may hit the
object when backing up to the positionif
the object projects over the actual backing up course.
How to park with predictive course
lines
WARNING
.
If the tires are replaced with different
sized tires, the predictive course lines
may not be displayed correctly.
. On a snow-covered or slippery road,
there may be a difference between
the predictive course lines and the
actual course line.
. The displayed lines will appear
slightly off to the right because the
rearview camera is not installed in the
rear center of the vehicle.
. If the battery is disconnected or
becomes discharged, the predictive
course lines may be displayed incor-
rectly. If this occurs, please perform
the following procedures:
— Turn the steering wheel from lock to lock while the engine is running.
— Drive the vehicle on a straight road for more than 5 minutes.
WAE0528X
1. Visually check that the parking space is safe before parking your vehicle.
2. The rear view of the vehicle is displayed on the screen
when the shift lever is
moved to the R (Reverse) position.
Monitor, climate, audio, phone and voice recognition systems4-19

THREE-WAY CATALYST
The three-way catalyst is an emission con-
trol device installed in the exhaust system.
Exhaust gases in the three-way catalyst are
burned at high temperatures to help reduce
pollutants.
WARNING
.The exhaust gas and the exhaust
system are very hot. Keep people,
animals or flammable materials away
from the exhaust system compo-
nents.
. Do not stop or park the vehicle over
flammable materials such as dry
grass, waste paper or rags. They
may ignite and cause a fire.
CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce
the three-way catalyst’s ability to
help reduce exhaust pollutants.
. Keep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if
noticeable loss of performance or
other unusual operating conditions
are detected. Have the vehicle in-
spected promptly. It is recommended
you visit an INFINITI retailer for this
service.
. Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the three-way catalyst.
. Do not race the engine while warming
it up.
. Do not push or tow your vehicle to
start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.) As an added safety feature, your vehicle has
been equipped with a Tire Pressure Mon-
itoring System (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
For models with run-flat tires, if the vehicle
is being driven with one or more flat tires,
the low tire pressure warning light will
illuminate continuously and a chime will
sound for 10 seconds. The flat tire warning
will also appear in the vehicle information
display. The chime will only sound at the first
indication of a flat tire, and the warning light
will illuminate continuously. When the flat
tire warning is activated, it is recommended
you have the system reset and the tire
checked and replaced if necessary by an
INFINITI retailer. Even if the tire is inflated
to the specified COLD tire pressure, the
warning light will continue to illuminate until
the system is reset by an INFINITI retailer.
Your vehicle can be driven for a limited time
on a flat tire. See “Run-flat tires” (P.8-33).
Starting and driving5-5

5-14Starting and driving
WAF0237X
INTELLIGENT KEY BATTERY DIS-
CHARGE
If the battery of the Intelligent Key is
discharged, or environmental conditions in-
terfere with the Intelligent Key operation,
start the engine according to the following
procedure:
1. Move the shift lever to the P (Park)position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the Intelligent Key as illustrated. (A chime
will sound.)
4. Push the ignition switch while depressing 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
Intelligent Key battery discharge indi-
cator appears in the vehicle information
display even if the Intelligent Key is
inside the vehicle. This is not a malfunc-
tion. To turn off the Intelligent Key
battery discharge indicator, touch the
ignition switch with the Intelligent Key
again.
. If the Intelligent Key battery discharge
indicator appears, replace the battery as
soon as possible. (See “Intelligent Key
battery replacement” (P.8-19).)
. 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.
. 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.2-10).)
BEFORE STARTING THE ENGINE

5-32Starting and driving
turned off.)
. When the vehicle speed lowers to less
than approximately 45 MPH (70 km/h).
. When the hazard warning flashers are
operated.
After the above conditions have finished and
the operating conditions are satisfied again,
Active Lane Control will resume operation.
Temporary disabled status at high
temperature
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 104°F (40°C)) and then Ac-
tive Lane Control is turned on, Active Lane
Control may be deactivated automatically.
The high cabin temperature message will
appear in the vehicle information display
.
Action to take:
When the interior temperature is reduced,
push the dynamic driver assistance switch
again to turn Active Lane Control back on.
SYSTEM MALFUNCTION
If Active Lane Control malfunctions, it will
cancel automatically. The chassis control
warning will appear in the vehicle informa-
tion display. Action to take:
If the chassis control warning appears, pull
off the road to a safe location and stop the
vehicle. Turn the engine off and restart the
engine. If the chassis control warning con-
tinues to illuminate, have the system
checked. It is recommended you visit an
INFINITI retailer for this service.
SSD0453
SYSTEM MAINTENANCE
The lane camera unitfor Active Lane
Control is located above the inside mirror. To
keep the proper operation of Active Lane
Control and prevent a system malfunction,
be sure to observe the following:
. Always keep the windshield clean.
. Do not attach a sticker (including trans-
parent material) or install an accessory
near the camera unit.
. Do not place reflective materials, such as
white paper or a mirror, on the instru-
ment panel. The reflection of sunlight
may adversely affect the camera unit’s
capability of detecting the lane markers.

JVS0826X
Warnings and indicators (on the vehicle
information display)
Dynamic driver assistance switch
SYSTEM TEMPORARILY UNA-
VAILABLE
Condition A
Under the following conditions, If the “LDP
currently unavailable” message appears in
the vehicle information display, a chime will
sound and the LDP system will be turned off
automatically.
.When the VDC system (except TCS
function) or ABS operates. .
When the VDC system is turned off.
. When the INFINITI Drive Mode Selector
is turned to the SNOW mode.
Action to take:
When the above conditions no longer exist,
push the dynamic driver assistance switch
again to turn the LDP system back on.
Condition B
LDW system: If the vehicle is parked in direct
sunlight under high temperature conditions
(over approximately 104°F (40°C)) and then
started, the LDW system may be deacti-
vated automatically. The “high cabin tem-
perature” warning message will appear in
the vehicle information display.
LDP system: If the vehicle is parked in direct
sunlight under high temperature conditions
(over approximately 104°F (40°C)) and then
the LDP system is turned on, the LDP
system may be deactivated automatically.
The “high cabin temperature” message will
appear in the vehicle information display.
The LDW and LDP systems are not available
until the conditions no longer exist.
Action to take:
When the above conditions no longer exist,
the LDW system will resume automatically.
For the LDP system, push the dynamic driver
assistance switch
again to turn the LDP system back on.
SYSTEM MALFUNCTION
LDW system:
If the LDW system malfunc-
tions, it will cancel automatically, and the
LDW “malfunction” message will appear in
the vehicle information display.
LDP system: If the LDP system malfunc-
tions, it will cancel automatically. The LDP
“malfunction” message will appear in the
vehicle information display.
Action to take:
Stop the vehicle in a safe location, place the
vehicle in the P (Park) position, turn the
engine off and restart the engine. If the
“malfunction” message continues to appear,
have the system checked. It is recommended
you visit an INFINITI retailer for this service.
Starting and driving5-39