2020 INFINITI Q50 tire type

8-38Do-it-yourself
ranty Information Booklet.
Intelligent All-Wheel Drive (AWD)
models
CAUTION
.Always use tires of the same type,
size, brand, construction (bias, bias-
belted or radial), and tread pattern
on all four wheels. Failure to do so
may result in a circumference differ-
ence between tires on the front and
rear axles which will cause excessive
tire wear and may damage the trans-
mission, transfer case and differential
gears.
. ONLY use spare tires specified for
the Intelligent AWD model.
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with
tires of the same size, brand, construction
and tread pattern. The tire pressure and
wheel alignment should also be checked and
corrected as necessary. It is recommended
you visit an INFINITI retailer for this service.
Wheel balance
Unbalanced wheels may affect vehicle hand-
ling and tire life. Even with regular use,
wheels can get out of balance. Therefore,
they should be balanced as required.
Wheel balance service should be performed
with the wheels off the vehicle. Spin
balancing the wheels on the vehicle could
lead to mechanical damage.
For additional information regarding tires,
refer to “Important Tire Safety Information”
(US) or “Tire Safety Information” (Canada) in
the INFINITI Warranty Information Booklet.
Care of wheels
See “Cleaning exterior” (P.7-2) for details
about care of the wheels.
JACKING UP THE VEHICLE AND
REPLACING TIRES
Your vehicle is equipped with run-flat tires
and you can continue driving to a safe
location even if they are punctured. (See
“Run-flat tires” (P.6-4) and “Run-flat tires”
(P.8-32).)
This section contains the information about
the vehicle jack-up procedures and the tire
replacement. NOTE:
Jacking tools are not equipped as standard
with this vehicle. It is recommended you
contact an INFINITI retailer about acquiring
the tools.
WARNING
.
Make sure the parking brake is
securely applied and the transmission
into the P (Park) position.
. Never change tires when the vehicle
is on a slope, ice or slippery areas.
This is hazardous.
. Never change tires if oncoming traf-
fic is close to your vehicle. Wait for
professional road assistance.

NOTE:
Maintenance items with “$” should be performed more frequently according to “Maintenance under severe driving conditions” (P.9-10).
(1) If operating mainly in dusty conditions, more frequent maintenance may be required.
(2) Periodic maintenance is not required.
(3) After 40,000 miles (64,000 km) or 48 months, inspect every 10,000 miles (16,000 km) or 12 months. Replace the drive belts if found
damaged.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. After first replacement, replace every 75,000 miles (120,000
km) or 60 months.
(5) Use only Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent with proper mixture ratio of 50% antifreeze and 50%
demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water may reduce the life expectancy of the
factory fill coolant.
(6) If the oil replacement indicator is displayed, change the engine oil and filter as soon as possible. After replacing the engine oil, reset the
display.
(7) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
(8) Replace spark plug when the plug gap exceeds 0.043 in (1.1 mm) even if within specified replacement mileage.
(9) Inspect the clearance between the brake pedal and the switches.
(10) Refer to “Tire rotation” under “General maintenance” (P.9-2).
(11) If using a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil at every 20,000 miles (32,000 km) or 24
months.
*: Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perform such
maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are required.
Maintenance and schedules9-9

WHEELS AND TIRES
Road wheel
TypeSize Offset in (mm)
Conventional 17 × 7.5J
1.77 (45)
18 × 7.5J 1.77 (45)
19 × 8.5J 1.97 (50)
19 × 9J 1.85 (47)
19 × 9.5J 1.97 (50)
Tire
TypeSize Pressure PSI (kPa) [Cold]
Conventional P225/55RF17 95V
35 (240)
P225/50RF18 94V
P245/40RF19 94V
245/40RF19 94W
Front: 245/40RF19 94W
Rear: 265/35RF19 94W
Technical and consumer information10-9

11-6
Readiness for inspection/maintenance
(I/M) test (US only) .......................................... 10-22
Rear door lockChild safety rear door lock ........................... 3-6
Rear seats ................................................................. 1-5
Rear window and outside mirror
defroster switch ................................................... 2-34
RearView Monitor ................................................. 4-3
Recorders Event data .................................................... 10-23
Registering your vehicle in
another country ................................................. 10-11
Remote engine start ........................................... 3-19
Remote keyless entry system .......................... 3-15
Reporting safety defects ................................. 10-21
Request switch (See Intelligent
Key system) .............................................................. 3-9
Roadside assistance program ............................. 6-2
Rollover ..................................................................... 5-9
Roof Moonroof ......................................................... 2-52
Run-flat tires .......................................................... 6-4
S
Safety Child seat belts ............................................... 1-19
Reporting safety defects .......................... 10-21
Seat adjustment Front power seat adjustment ....................... 1-3
Front seats ......................................................... 1-3 Seat belt(s)
Child safety ..................................................... 1-19
Infants ............................................................... 1-19
Injured persons ............................................... 1-14
Larger children ............................................... 1-20
Pre-crash seat belts with
comfort function ............................................ 1-14
Precautions on seat belt usage ................. 1-12
Pregnant women ........................................... 1-14
Seat belt cleaning ............................................. 7-7
Seat belt extenders ....................................... 1-18
Seat belt maintenance ................................. 1-18
Seat belt warning light and chime ............ 2-14
Seat belts ......................................................... 1-12
Seat belts with pretensioners .................... 1-57
Shoulder belt height adjustment ............... 1-17
Small children .................................................. 1-20
Three-point type ............................................ 1-15
Seat(s)
Driver-side memory ...................................... 3-32
Heated seats ................................................... 2-42
Seats .................................................................... 1-2
Security system Vehicle security system ................................ 2-29
Security system (INFINITI Vehicle
Immobilizer System)
Engine start .................................................... 2-30
Servicing air conditioner .................................... 4-42
Shift lever Shift lock release ........................................... 5-19
Shift lock release, Transmission ...................... 5-19 Shifting
Automatic transmission ............................... 5-16
Shoulder belt height adjustment ...................... 1-17
SNOW mode ......................................................... 5-22
Sonar system ...................................................... 5-133 Camera aiding sonar function
(models with Around View
®Monitor) ..... 4-25
Sonar system settings ...................................... 5-134
Spare tire ............................................................... 10-9
Spark plugs ............................................................ 8-14
Speedometer ............................................................ 2-7
SPORT mode ........................................................ 5-22
SPORT+ mode ...................................................... 5-22
Standard maintenance ................................ 9-7, 9-8
STANDARD mode ............................................... 5-22
Starting Before starting the engine .......................... 5-14
Jump starting .................................................. 8-13
Precautions when starting and driving ..... 5-4
Push starting ...................................................... 6-7
Starting the engine ....................................... 5-15
Status light, Front passenger air bag ............ 1-48
Steering
Direct Adaptive Steering .......................... 5-124
Heated steering wheel ................................. 2-43
Power steering system ............................. 5-124
Tilt/telescopic steering ................................ 3-27
Storage ................................................................... 2-45
Storage box ........................................................... 2-48
Sun visors ............................................................... 3-29
Sunglasses holder ................................................ 2-46

Supplemental air bag warning labels ............. 1-58
Supplemental air bag warning light .... 1-58, 2-15
Supplemental restraint system ........................ 1-40Precautions on supplemental
restraint system ............................................ 1-40
Switch Autolight switch ............................................. 2-35
Fog light switch ............................................. 2-41
Hazard warning flasher switch .................... 6-2
Headlight switch ............................................ 2-34
Ignition switch ................................................ 5-16
Power door lock switch ................................. 3-5
Rear window and outside mirror
defroster switch ............................................. 2-34
Turn signal switch ........................................ 2-40
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-41
T
Tachometer ............................................................. 2-8
Temperature gauge
Engine coolant temperature gauge ............ 2-8
Theft (INFINITI Vehicle Immobilizer System)
Engine start .................................................... 2-30
Thigh extension ....................................................... 1-5
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-27
Tire Flat Tire - Visit dealer warning ................. 2-21
Run-flat tires .................................................... 6-4
Tire replacement indicator .......................... 2-24 Tire rotation ................................................... 8-34
Tire pressure Low tire pressure warning light ................ 2-12
Tire Pressure Low - Add Air warning ........... 2-21
Tires Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-26
Run-flat tires .................................................. 8-32
Tire and Loading
information label ............................. 8-28, 10-13
Tire chains ....................................................... 8-34
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-26
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-26
Types of tires .................................................. 8-32
Uniform tire quality grading .................... 10-19
Wheel/tire size ............................................... 10-9
Wheels and tires ............................................ 8-26
Towing Flat towing ................................................... 10-19
Tow truck towing ............................................ 6-8
Towing a trailer ........................................... 10-19
TPMS
Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-26
TPMS, Tire pressure monitoring system
TPMS with Tire Inflation Indicator ............ 5-8
Trailer towing ..................................................... 10-19 Transceiver
HomeLink
®Universal Transceiver ............ 2-57
Transmission
Automatic Transmission Fluid (ATF) ......... 8-9
Driving with automatic transmission ....... 5-16
Transmission shift lever lock release ....... 5-19
Transmitter (See remote keyless
entry system) ........................................................ 3-15
Traveling or registering in
another country ................................................. 10-11
Trip computer ....................................................... 2-26
Trip odometer ....................................................... 2-26
Trunk
Interior trunk lid release .............................. 3-24
Light .................................................................. 2-56
Pass-through ..................................................... 1-7
Trunk hooks .................................................... 2-49
Trunk lid ........................................................... 3-22
Trunk lid release switch ............................... 3-23
Trunk open request switch ......................... 3-23
Trunk release power cancel switch .......... 3-24
Turn signal switch ............................................... 2-40
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading ........................... 10-19
V
Vanity mirror ......................................................... 3-32
Vanity mirror lights ............................................. 2-56
11-7