2018 INFINITI Q50 Headlight

.The original tires have built-in
tread wear indicators. When
wear indicators are visible, the
tire(s) should be replaced.
. Tires degrade with age and use.
Have tires, including the spare,
over 6 years old checked by a
qualified technician, because
some tire damage may not be
obvious. Replace the tires as
necessary to prevent tire failure
and possible personal injury.
. Improper service of the spare
tire may result in serious perso-
nal injury. If it is necessary to
repair the spare tire, it is re-
commended you visit an
INFINITI retailer for this ser-
vice.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. (See “Speci-
fications” (P.10-11) for recommended types
and sizes of tires and wheels.)
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed in the vehicle
information display while the vehicle is
driven. Depending on the radio wave circum-
stance, tire pressure may not correctly be
displayed.
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (bias, bias-belted, radial or run-
flat), or tread patterns can adversely
affect the ride, braking, handling,
ground clearance, body-to-tire clear-
ance, tire chain clearance, speed-
ometer calibration, headlight aim
and bumper height. Some of these
effects may lead to accidents and
could result in serious personal injury.
. For Two-Wheel Drive (2WD) models,
if your vehicle was originally equipped with 4 tires that were the
same size and you are only replacing
2 of the 4 tires, install the new tires
on the rear axle. Placing new tires on
the front axle may cause loss of
vehicle control in some driving condi-
tions and cause an accident and
personal injury.
. If the wheels are changed for any
reason, always replace with wheels
which have the same off-set dimen-
sion. Wheels of a different off-set
could cause premature tire wear,
degrade vehicle handling character-
istics and/or interference with the
brake discs/drums. Such interference
can lead to decreased braking effi-
ciency and/or early brake pad/shoe
wear. See “Wheels and tires” (P.10-
12) of this manual for wheel off-set
dimensions.
. 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.
Do-it-yourself8-43

other corrosive materials, check lubrication
frequently.
Lights*:Clean the headlights on a regular
basis. Make sure that the headlights, stop
lights, tail lights, turn signal lights, and other
lights are all operating properly and installed
securely. Also check headlight aim.
Road wheel nuts (lug nuts)*: When checking
the tires, make sure no wheel nuts are
missing, and check for any loose wheel nuts.
Tighten if necessary.
Tire rotation*: Tires should be rotated every
5,000 miles (8,000 km). If your vehicle is
equipped with different sized tires in the
front and rear, tires cannot be rotated.
Tires*: Check the pressure with a gauge
often and always prior to long distance trips.
If necessary, adjust the pressure in all tires,
including the spare, to the pressure speci-
fied. Check carefully for damage, cuts or
excessive wear.
Tire Pressure Monitoring System (TPMS)
transmitter components: Replace the TPMS
transmitter grommet seal, valve core and
cap when the tires are replaced due to wear
or age.
Wheel alignment and balance: If the vehicle
should pull to either side while driving on a
straight and level road, or if you detect
uneven or abnormal tire wear, there may be
a need for wheel alignment. If the steering wheel or seat vibrates at
normal highway speeds, wheel balancing
may be needed.
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the INFINITI Warranty Information Booklet.
Windshield:
Clean the windshield on a
regular basis. Check the windshield at least
every six months for cracks or other damage.
Have a damaged windshield repaired by a
qualified repair facility.
Windshield wiper blades*: Check for cracks
or wear if they do not wipe properly.
Inside the vehicle
The maintenance items listed here should be
checked on a regular basis, such as when
performing scheduled maintenance, cleaning
the vehicle, etc.
Accelerator pedal: Check the pedal for
smooth operation and make sure the pedal
does not catch or require uneven effort.
Keep the floor mat away from the pedal.
Automatic transmission P (Park) mechan-
ism: On a fairly steep hill, check that your
vehicle is held securely with the shift lever in
the P (Park) position without applying any
brakes.
Brake pedal: Check the pedal for smooth
operation. If the brake pedal suddenly goes down further than normal, the pedal feels
spongy or the vehicle seems to take longer to
stop, have your vehicle checked immediately.
It is recommended you visit an INFINITI
retailer for this service. Keep the floor mat
away from the pedal.
Brakes:
Check that the brakes do not pull the
vehicle to one side when applied.
Parking brake: Check the parking brake
operation regularly. The vehicle should be
securely held on a fairly steep hill with only
the parking brake applied. If the parking
brake needs adjusted, it is recommended you
visit an INFINITI retailer for this service.
Seats: Check seat position controls such as
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position. Check
that the head restraints move up and down
smoothly and that the locks (if so equipped)
hold securely in all latched positions.
Seat belts: Check that all parts of the seat
belt system (for example, buckles, anchors,
adjuster and retractors) operate properly
and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying,
wear or damage.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Maintenance and schedules9-3

Floor mat installation ............................................ 7-6
FluidAutomatic Transmission Fluid (ATF) ....... 8-13
Brake fluid ....................................................... 8-14
Capacities and
recommended fluids/lubricants ................. 10-2
Engine coolant .................................................. 8-6
Engine oil ........................................................ 8-10
Power steering fluid ..................................... 8-14
Window washer fluid ................................... 8-15
Fog light switch ................................................... 2-42
Forward Emergency Braking (FEB) ............ 5-105
Forward Emergency Braking (FEB) system
warning light .......................................................... 2-11
Front passenger air bag and status light ..... 1-50
Front power seat adjustment ............................. 1-3
Front seat Front seat adjustment .................................... 1-3
Fuel
Capacities and
recommended fluids/lubricants ................. 10-2
Fuel economy ............................................... 5-123
Fuel information ............................... 10-4, 10-6
Fuel octane rating ............................ 10-4, 10-6
Fuel-filler cap .................................................. 3-26
Fuel-filler door ............................................... 3-26
Gauge .................................................................. 2-9
Fuel Efficient Driving Tips .............................. 5-122
Fuses ....................................................................... 8-23
Fusible links ........................................................... 8-24G
Garage door opener
HomeLink® Universal Transceiver ........... 2-58
Gas cap ................................................................... 3-26
Gauge ........................................................................\
. 2-6
Engine coolant temperature gauge ............ 2-8
Fuel gauge ......................................................... 2-9
Odometer ............................................................ 2-7
Speedometer ...................................................... 2-7
Tachometer ....................................................... 2-8
Trip computer ................................................. 2-27
General maintenance ............................................. 9-2
Glove box ............................................................... 2-48
H
Hazard warning flasher switch ........................... 6-2
Head restraints/headrests .................................. 1-8
Headlights Aiming control (See Adaptive Front
lighting System (AFS)) ................................ 2-40
Headlight switch ............................................ 2-35
Heated seats ......................................................... 2-43
Heated steering wheel ....................................... 2-44
Heater Engine block heater ................................... 5-142
High beam assist ................................................. 2-37
Hill start assist system ..................................... 5-136
HomeLink® Universal Transceiver ................. 2-58
Hood release ......................................................... 3-23 Hook
Coat hooks ...................................................... 2-49
Trunk hooks ................................................... 2-50
Horn ........................................................................\
. 2-42
Hydraulic pump electric power steering ..... 5-127
I
Idling Stop System ............................................ 5-137
Idling Stop System indicator light .................. 2-16
Idling Stop System reminder buzzer .............. 2-18
Ignition switch (Push-button) ................................................. 5-11
Automatic transmission models ................ 5-16
Immobilizer system .............................................. 2-31
Indicator
Lights ................................................................ 2-16
Vehicle information display ........................ 2-19
Indicator lights ...................................................... 2-16
Indicators for operation (vehicle
information display) ............................................ 2-21
INFINITI Drive Mode Selector ......................... 5-22
Infiniti InTouch Owner’s Manual ...................... 4-2
INFINITI Vehicle Immobilizer System ............ 2-31 Engine start ..................................................... 2-31
Inside mirror .......................................................... 3-30
Inspection/maintenance (I/M) test ............. 10-25
Instrument brightness control ......................... 2-41
Instrument panel ..................................................... 2-5
Intelligent All-Wheel Drive (AWD) ............... 5-124
Intelligent Cruise Control (ICC) ....................... 5-73
Intelligent Cruise Control (ICC) system
11-3

11-4
ON indicator ......................................................... 2-24
Intelligent Key .......................................................... 3-2
Intelligent Key system ........................................... 3-7Battery replacement ..................................... 8-26
Key operating range ....................................... 3-8
Key operation ................................................. 3-10
Warning signals .............................................. 3-14
Intercooler cooling system .................................. 8-9
Interior light control switch .............................. 2-56
Interior light replacement .................................. 8-29
Interior lights ......................................................... 2-55
Interior trunk lid release .................................... 3-25
ISOFIX child restraint ......................................... 1-26
J
Jump starting ........................................................... 6-9
K
Keyless entry (See remote keyless
entry system) ........................................................ 3-16
Keys ........................................................................\
.... 3-2 For Intelligent Key system ............................. 3-7
L
Labels
Air bag warning labels ................................. 1-59
Air conditioner specification label ......... 10-16
Emission control information label ........ 10-16
Engine serial number ................................. 10-15 F.M.V.S.S./C.M.V.S.S.
certification label ........................................ 10-15
Tire and Loading
information label ............................. 8-34, 10-16
Vehicle identification number (VIN) ...... 10-14
Lane Departure Warning (LDW)/Lane
Departure Prevention (LDP) ............................ 5-34
LATCH system ..................................................... 1-26
License plate Installing front license plate ..................... 10-17
Light Air bag warning light .................................... 1-59
Bulb replacement .......................................... 8-28
Fog light switch ............................................. 2-42
Headlight switch ............................................ 2-35
Indicator lights ................................................ 2-16
Interior light control switch ........................ 2-56
Interior lights ................................................... 2-55
Map lights ........................................................ 2-55
Personal lights ................................................ 2-55
Replacement .................................................. 8-28
Trunk light ....................................................... 2-57
Vanity mirror lights ....................................... 2-57
Warning/indicator lights and
audible reminders .......................................... 2-10
Lights Exterior and interior light replacement .... 8-29
Loading information (See vehicle
loading information) ......................................... 10-19
Lock Automatic door locks ..................................... 3-6 Door locks .......................................................... 3-4
Power door lock ............................................... 3-4
Trunk lid ........................................................... 3-23
Locking with mechanical key ............................. 3-4
Log-in function .................................................... 3-16
Loose Fuel Cap warning ....................... 2-22, 3-28
Low fuel warning light ....................................... 2-12
Low outside temperature warning ................. 2-23
Low tire pressure warning light ...................... 2-12
Low tire pressure warning system (See Tire
Pressure Monitoring
System (TPMS)) ................................ 5-5, 6-3, 8-32
M
Maintenance
Battery .............................................................. 8-16
General maintenance ...................................... 9-2
Indicators for maintenance (vehicle
information display) ...................................... 2-25
Inside the vehicle ............................................. 9-3
Maintenance log ............................................ 9-17
Maintenance precautions .............................. 8-3
Maintenance requirements ........................... 9-2
Maintenance schedules ................................. 9-6
Maintenance under severe
driving conditions .......................................... 9-16
Outside the vehicle ......................................... 9-2
Seat belt maintenance ................................. 1-20
Standard maintenance .................................... 9-7
Under the hood and vehicle ......................... 9-4
Maintenance schedules ........................................ 9-6

11-6
Request switch (See Intelligent
Key system) ........................................................... 3-10
Roadside assistance program ............................. 6-2
Rollover ..................................................................... 5-9
RoofMoonroof ......................................................... 2-53
Run-flat tires .......................................................... 6-4
S
Safety Child seat belts ............................................... 1-21
Reporting safety defects .......................... 10-24
Seat adjustment Front power seat adjustment ....................... 1-3
Front seats ......................................................... 1-3
Seat belt(s) Child safety ..................................................... 1-21
Infants ............................................................... 1-22
Injured persons ............................................... 1-14
Larger children ............................................... 1-22
Precautions on seat belt usage ................. 1-12
Pre-crash seat belts with
comfort function ............................................ 1-14
Pregnant women ........................................... 1-14
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-20
Seat belt maintenance ................................. 1-20
Seat belt warning light and chime ............ 2-15
Seat belts ......................................................... 1-12
Seat belts with pretensioners .................... 1-58
Shoulder belt height adjustment ............... 1-20 Small children .................................................. 1-22
Three-point type ............................................ 1-15
Seat(s) Driver-side memory ...................................... 3-33
Heated seats ................................................... 2-43
Seats .................................................................... 1-2
Security system
Vehicle security system ............................... 2-30
Security system (INFINITI Vehicle
Immobilizer System)
Engine start ..................................................... 2-31
Shift lever
Shift lock release ........................................... 5-19
Shift lock release, Transmission ...................... 5-19
Shifting
Automatic transmission ............................... 5-16
Shoulder belt height adjustment ..................... 1-20
SNOW mode ......................................................... 5-23
Spare tire ............................................................. 10-12
Spark plugs ............................................................ 8-20
Speedometer ............................................................ 2-7
SPORT mode ........................................................ 5-23
SPORT+ mode ...................................................... 5-23
Standard maintenance .......................................... 9-7
STANDARD mode ............................................... 5-22
Starting Before starting the engine .......................... 5-14
Jump starting .................................................. 8-18
Precautions when starting and driving ..... 5-4
Push starting ................................................... 6-16
Starting the engine ....................................... 5-15 Status light, Front passenger air bag ............ 1-50
Steering
Direct Adaptive Steering .......................... 5-128
Heated steering wheel ................................ 2-44
Power steering fluid ..................................... 8-14
Power steering system .............................. 5-127
Tilt/telescopic steering ................................ 3-28
Storage ................................................................... 2-46
Storage box ........................................................... 2-49
Sun visors ............................................................... 3-30
Sunglasses holder ................................................ 2-47
Supplemental air bag warning labels ............. 1-59
Supplemental air bag warning light .... 1-59, 2-15
Supplemental restraint system ........................ 1-42 Precautions on supplemental
restraint system ............................................. 1-42
Switch Autolight switch ............................................. 2-36
Fog light switch ............................................. 2-42
Hazard warning flasher switch .................... 6-2
Headlight switch ............................................ 2-35
Ignition switch ................................................ 5-16
Power door lock switch ................................. 3-5
Rear window and outside mirror
defroster switch ............................................. 2-35
Turn signal switch ......................................... 2-41
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42