tire size INFINITI Q50 2021 Owner's Guide

9-16Maintenance and schedules
Severe maintenance:.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) If operating mainly in dusty conditions, more
frequent maintenance may be required.
(4) 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.
(5) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
95,000 Miles/114 Months/
152,000 Km
Standard maintenance:.Perform tire rotation (1)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
100,000 Miles/120 Months/
160,000 Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect drive belts (1).Inspect EVAP vapor lines and fuel lines.Inspect exhaust system.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect stop lamp switch and brake pedal
position switch (2)
.Inspect transfer fluid.Inspect differential gear oil.Replace brake fluid.Replace engine oil and filter (3).Perform tire rotation (4)

Severe maintenance:.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid.Replace transfer fluid.Replace differential gear oil
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) 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.
(4) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
105,000 Miles/126 Months/
168,000 Km
Standard maintenance:.Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (1).Replace spark plugs (2) (3).Replace engine coolant* (4) Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
(2) Performed based on the number of miles only.
(3) Replace spark plug when the plug gap exceeds
0.043 in (1.1 mm) even if within specified periodic
replacement mileage.
(4) First replacement interval is 105,000 miles
(168,000 km) or 84 months. After first replace-
ment, replace every 75,000 miles (120,000 km)
or 60 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 schedules9-17

9-18Maintenance and schedules
110,000 Miles/132 Months/
176,000 Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect drive belts (1).Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect stop lamp switch and brake pedal
position switch (2)
.Inspect transfer fluid.Inspect differential gear oil.Replace engine oil and filter (3).Perform tire rotation (4)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) 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.
(4) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
115,000 Miles/138 Months/
184,000 Km
Standard maintenance:.Perform tire rotation (1)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
120,000 Miles/144 Months/
192,000 Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect drive belts (1).Inspect EVAP vapor lines and fuel lines.Inspect exhaust system.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect stop lamp switch and brake pedal
position switch (2)
.Inspect transfer fluid.Inspect differential gear oil.Replace air cleaner filter (3).Replace brake fluid.Replace engine oil and filter (4).Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (5)

Severe maintenance:.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid.Replace transfer fluid.Replace differential gear oil
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) If operating mainly in dusty conditions, more
frequent maintenance may be required.
(4) If the oil replacement indicator is displayed,
change the engine oil and filter within two weeks
or less than 500 miles (800 km).
(5) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
Maintenance and schedules9-19

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

Sunglasses holder ................................................ 2-49
Supplemental air bag warning labels ............. 1-60
Supplemental air bag warning light ... 1-60, 2-12
Supplemental restraint system ........................ 1-42Precautions on supplemental
restraint system ............................................. 1-42
Switch
Autolight switch ............................................. 2-36
Emergency Call (SOS) button .................... 2-46
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
T
Tachometer ............................................................. 2-8
Temperature gaugeEngine coolant temperature gauge ............ 2-8
Theft (INFINITI Vehicle Immobilizer System) Engine start ..................................................... 2-31
Thigh extension ....................................................... 1-5
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 ................................................... 8-34
Tire pressure
Low tire pressure warning light ................ 2-13
Tire Pressure Low - Add Air warning ........... 2-22
Tires
Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-25
Run-flat tires .................................................. 8-32
Tire and Loading
information label ............................. 8-27, 10-13
Tire chains ........................................................ 8-33
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-25
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-25
Types of tires .................................................. 8-31
Uniform tire quality grading .................... 10-20
Wheel/tire size ............................................... 10-9
Wheels and tires ............................................ 8-25
Towing Flat towing ................................................... 10-20
Tow truck towing ............................................ 6-8
Towing a trailer ........................................... 10-20
TPMS Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-25
TPMS, Tire pressure monitoring system TPMS with Tire Inflation Indicator ............ 5-8 Trailer towing .................................................... 10-20
Transceiver
HomeLink
®Universal Transceiver ............ 2-59
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 ....................................................... 2-27
Trip odometer ....................................................... 2-27
Trunk Interior trunk lid release .............................. 3-24
Light .................................................................. 2-59
Pass-through ..................................................... 1-7
Trunk hooks .................................................... 2-51
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 ............................................... 2-41
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading .......................... 10-20
11-7

11-8
V
Vanity mirror ......................................................... 3-32
Vanity mirror lights ............................................. 2-58
Variable voltage control system ..................... 8-13
VehicleDimensions ................................................... 10-10
Recovery (freeing a stuck vehicle) ............ 6-10
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42
Vehicle dynamic control
(VDC) system ............................................... 5-128
Vehicle Dynamic Control (VDC)
warning light ................................................... 2-17
Vehicle identification number (VIN) ............. 10-11
Vehicle information display .............................. 2-18
Vehicle loading information ............................ 10-17
Vehicle security system ...................................... 2-30
Vehicle speedAverage speed ............................ 2-27
Ventilators ............................................................. 4-35
W
Warning Flat Tire - Visit dealer warning ................. 2-22
Hazard warning flasher switch .................... 6-2
Indicators for operation (vehicle
information display) ...................................... 2-21
Power steering warning light ..................... 2-16
Predictive Forward Collision
Warning (PFCW) ........................................ 5-109 Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-25
Vehicle information display ........................ 2-18
Warning lights, indicator lights and
audible reminders .......................................... 2-10
Warning labels
Air bag warning labels ................................. 1-60
Warning light Air bag warning light ........................ 1-60, 2-12
Anti-lock braking system (ABS)
warning light ................................................... 2-13
Brake warning light ....................................... 2-11
Forward Emergency Braking (FEB)
system warning light .................................... 2-13
Low fuel warning light ................................. 2-13
Low tire pressure warning light ................ 2-13
Seat belt warning light
and chime ............................................. 1-14, 2-12
Warranty
Emission control system warranty ........ 10-21
Washer switch
Wiper and washer switch ........................... 2-32
Washing .................................................................... 7-2
Waxing ....................................................................... 7-2
Welcome light and farewell light function .... 3-10
Wheel/tire size ..................................................... 10-9
Wheels and tires .................................................. 8-25 Care of wheels .................................................. 7-3
Cleaning aluminum alloy wheels .................. 7-3
Cleaning bright wheels .................................. 7-4
Window washer fluid ......................................... 8-10 Window(s)
Cleaning ............................................................... 7-3
Power windows ............................................. 2-52
Wiper
Rain-sensing auto wiper system ............... 2-34
Wiper and washer switch ........................... 2-32
Wiper blades ................................................... 8-15
Wiper and washer switch ................................. 2-32