2018 INFINITI Q50 HYBRID tire size

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 difference between tires
on the front and rear axles which will
cause excessive tire wear and may
damage the transmission, transfer case
and differential gears.
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.8-34).)
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. 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.
Do-it-yourself8-39

WHEELS AND TIRES
Road wheel
TypeSize Offset in (mm)
Conventional 19 × 8.5J 1.97 (50)
Tire
TypeSize Pressure PSI (kPa) [Cold]
Conventional P245/40RF19 94V
35 (240)
245/40RF19 94W
DIMENSIONS
in (mm)
Overall length (with front license plate) 189.6 (4,815)
Overall length (without front license plate) 189.1 (4,803)
Overall width 71.8 (1,824)
Overall height 56.8 (1,443)*1
57.2 (1,453)*2
Front tread 60.4 (1,534)
Rear tread 61.4 (1,560)
Wheelbase 112.2 (2,850)
*1: Two-Wheel Drive (2WD) models
*2: All-Wheel Drive (AWD) models
Technical and consumer information10-9

Starting the INFINITI Direct Response
Hybrid®System .............................................. 5-14
Status light, Front passenger air bag ............ 1-45
Steering
Direct Adaptive Steering ........................... 5-126
Heated steering wheel ................................. 2-45
Power steering system .............................. 5-126
Tilt/telescopic steering ................................ 3-27
Storage ................................................................... 2-47
Storage box ........................................................... 2-50
Sun visors ............................................................... 3-27
Sunglasses holder ................................................ 2-49
Supplemental air bag warning labels ............. 1-54
Supplemental air bag warning light ... 1-54, 2-14
Supplemental restraint system ........................ 1-37 Precautions on supplemental
restraint system ............................................. 1-37
Switch Autolight switch ............................................. 2-37
Fog light switch ............................................. 2-43
Hazard warning flasher switch .................... 6-2
Headlight switch ............................................ 2-36
Ignition switch ................................................ 5-15
Power door lock switch ................................. 3-5
Rear window and outside mirror
defroster switch ............................................. 2-36
Turn signal switch ......................................... 2-42
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-43T
Tachometer .............................................................. 2-7
Temperature Engine coolant temperature gauge .......... 2-29
Theft (INFINITI Vehicle Immobilizer System)
Engine start ..................................................... 2-32
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-27
Tire Flat Tire - Visit dealer warning ................. 2-22
Run-flat tires .................................................... 6-4
Tire replacement indicator .......................... 2-25
Tire rotation .................................................... 8-36
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, 8-28
Run-flat tires ................................................. 8-34
Tire and Loading
information label ............................. 8-30, 10-12
Tire chains ........................................................ 8-35
Tire dressing ...................................................... 7-4
Tire pressure .................................................. 8-28
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-28
Types of tires ................................................. 8-34
Uniform tire quality grading .................... 10-18 Wheel/tire size ............................................... 10-9
Wheels and tires ........................................... 8-28
Towing
Flat towing ................................................... 10-18
Tow truck towing ............................................ 6-9
Towing a trailer ........................................... 10-18
TPMS
Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-28
TPMS with Tire Inflation Indicator ............ 5-8
Trailer towing .................................................... 10-18
Transceiver HomeLink
®Universal Transceiver ............ 2-59
Transmission Automatic Transmission Fluid (ATF) ....... 8-12
Driving with automatic transmission ....... 5-15
Transmission shift lever lock release ....... 5-18
Transmitter (See remote keyless
entry system) ........................................................ 3-15
Traveling or registering in
another country ................................................ 10-10
Trip computer ....................................................... 2-27
Trip odometer ....................................................... 2-29
Trunk Interior trunk lid release .............................. 3-24
Light .................................................................. 2-58
Trunk hooks .................................................... 2-51
Trunk lid ........................................................... 3-22
Trunk lid release switch ............................... 3-22
Trunk open request switch ......................... 3-22
Trunk release power cancel switch .......... 3-23
11-7

11-8
Turn signal switch ............................................... 2-42
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading .......................... 10-18
V
Vanity mirror ......................................................... 3-30
Vanity mirror lights ............................................. 2-58
VehicleDimensions ...................................................... 10-9
Recovery (freeing a stuck vehicle) ............ 6-11
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-43
Vehicle Dynamic Control
(VDC) system ............................................... 5-130
Vehicle Dynamic Control (VDC)
warning light ................................................... 2-15
Vehicle identification number (VIN) ............ 10-10
Vehicle information display .............................. 2-18
Vehicle loading information ............................ 10-15
Vehicle security system ...................................... 2-31
Vehicle speedAverage speed ............................ 2-28
Ventilators ............................................................... 4-2
W
Warning Blind Spot Warning (BSW) system .......... 5-41
Flat Tire - Visit dealer warning ................. 2-22 Hazard warning flasher switch .................... 6-2
Predictive Forward Collision
Warning (PFCW) ......................................... 5-112
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-28
Vehicle information display ........................ 2-18
Warning lights .................................................. 2-9
Warning lights, indicator lights and
audible reminders ............................................ 2-9
Warning labels
Air bag warning labels ................................. 1-54
Warning light ........................................................... 2-9 Air bag warning light ........................ 1-54, 2-14
Anti-lock Braking System (ABS)
warning light ................................................... 2-10
Brake system warning light (yellow) ........ 2-10
Brake warning light (red) ............................. 2-10
Direct Response Hybrid
®System warning
light (hybrid system warning light) ........... 2-11
Forward Emergency Braking (FEB)
system warning light .................................... 2-11
Low fuel warning light ................................. 2-12
Low tire pressure warning light ................ 2-12
Power steering warning light ..................... 2-14
Seat belt warning light and chime ............ 2-14
Warranty Emission control system warranty ........ 10-19
Washer switch
Wiper and washer switch ........................... 2-34
Washing .................................................................... 7-2
Waxing ....................................................................... 7-2 Welcome light and farewell light function .... 3-10
Wheel/tire size ..................................................... 10-9
Wheels and tires .................................................. 8-28
Care of wheels .................................................. 7-3
Cleaning aluminum alloy wheels .................. 7-3
Cleaning bright wheels .................................. 7-4
Window washer fluid ......................................... 8-13
Window(s) Cleaning ............................................................... 7-3
Power windows ............................................. 2-52
Wiper Rain-sensing auto wiper system ............... 2-35
Wiper and washer switch ........................... 2-34
Wiper blades ................................................... 8-17
Wiper and washer switch ................................. 2-34