ignition INFINITI Q50 2019 Owners Manual

8-44Do-it-yourself
.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.

10-6Technical and consumer information
sible.
Incorrect ignition timing will result in knock-
ing, after-run or overheating. This in turn
may cause excessive fuel consumption or
damage to the engine. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended you visit an
INFINITI retailer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
FUEL INFORMATION (for 2.0L
turbo gasoline engine model)
Use unleaded premium gasoline with an
octane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number 96).
If unleaded premium gasoline is not avail-
able, unleaded regular gasoline with an
octane rating of at least 87 AKI number
(Research octane number 91) may be tem-
porarily used, but only under the following
precautions:
.Have the fuel tank filled only partially
with unleaded regular gasoline, and fill
up with unleaded premium gasoline as
soon as possible. .
Avoid full throttle driving and abrupt
acceleration.
Use unleaded premium gasoline for max-
imum vehicle performance.
CAUTION
. Using a fuel other than that specified
could adversely affect the emission
control system, and may also affect
warranty coverage.
. Under no circumstances should a
leaded gasoline be used, because this
will damage the three-way catalyst.
. Do not use E-15 or E-85 fuel in your
vehicle. Your vehicle is not designed
to run on E-15 or E-85 fuel. Using E-
15 or E-85 fuel in a vehicle not
specifically designed for E-15 or E-
85 fuel can adversely affect the
emission control devices and systems
of the vehicle. Damage caused by
such fuel is not covered by the
INFINITI new vehicle limited war-
ranty.
. Do not use fuel that contains the
octane booster methylcyclopentadie-
nyl manganese tricarbonyl (MMT).
Using fuel containing MMT may
adversely affect vehicle performance and vehicle emissions. Not all fuel
dispensers are labeled to indicate
MMT content, so you may have to
consult your gasoline retailer for
more details. Note that Federal and
California laws prohibit the use of
MMT in reformulated gasoline.
. U.S. government regulations require
ethanol dispensing pumps to be iden-
tified by a small, square, orange and
black label with the common abbre-
viation or the appropriate percen-
tage for that region.
Gasoline specifications
INFINITI recommends using gasoline that
meets the World-Wide Fuel Charter
(WWFC) specifications where it is available.
Many of the automobile manufacturers
developed this specification to improve
emission system and vehicle performance.
Ask your service station manager if the
gasoline meets the World-Wide Fuel Char-
ter (WWFC) specifications.
Reformulated gasoline
Some fuel suppliers are now producing
reformulated gasolines. These gasolines are
specially designed to reduce vehicle emis-
sions. INFINITI supports efforts towards
cleaner air and suggests that you use

10-8Technical and consumer information
that can be harmful to the fuel system and
engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If severe,
this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level roads,
it is recommended you have an INFINITI
retailer correct the condition. Failure to
correct the condition is misuse of the
vehicle, for which INFINITI is not respon-
sible.
Incorrect ignition timing will result in knock-
ing, after-run or overheating. This in turn
may cause excessive fuel consumption or
damage to the engine. If any of the above
symptoms are encountered, have your ve-
hicle checked. It is recommended you visit an
INFINITI retailer for servicing.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
JVT0342X
API certification mark
API service symbol
ENGINE OIL AND OIL FILTER
RECOMMENDATION
VR30DDTT engine model
Selecting the correct oil:
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see “Capacities and recommended fluids/
lubricants” (P.10-2). INFINITI recommends
the use of an energy conserving oil in order
to improve fuel economy.Select only engine oils that meet the Amer-
ican Petroleum Institute (API) certification
or International Lubricant Standardization
and Approval Committee (ILSAC) certifica-
tion and SAE viscosity standard. These oils
have the API certification mark on the front
of the container. Oils which do not have the
specified quality label should not be used as
they could cause engine damage.
Oil additives:
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Oil which may contain foreign matter or has
been previously used should not be used.

ENGINE
ModelVR30DDTT2.0L turbo gasoline engine
Type Gasoline, 4-cycleGasoline, 4-cycle, DOHC
Cylinder arrangement 6-cylinder, V-slanted at 60° 4-cylinder, in-line
Bore × Stroke in (mm) 3.386× 3.386
(86.0 × 86.0)3.268 × 3.622
(83.0 × 92.0)
Displacement cu in (cm
3) 182.88 (2,997) 121.49 (1,991 )
Firing order 1-2-3-4-5-61-3-4-2
Idle speed rpm No adjustment is necessary.
Ignition timing
(B.T.D.C.) degree/rpm
Spark plug DILKAR8K8GSILZKFR8E7S
Spark plug gap
(Normal) in (mm)
0.031 (0.8) 0.028 (0.7)
Camshaft operation Timing chainTiming chain
This spark ignition system complies with the Canadian standard ICES-002.
STI0425
VR30DDTT engine
Technical and consumer information10-11
SPECIFICATIONS

wwwapps.tc.gc.ca/Saf-Sec-Sur/7/
PCDB-BDPP/fc-cp.aspx?lang=fra
(French speakers).
Additional information concerning
motor vehicle safety may be obtained
from Transport Canada’s Road
Safety Information Centre at 1-
800-333-0371 or online at www.tc.
gc.ca/ roadsafety (English speakers)
or www.tc.gc.ca/securiteroutiere
(French speakers).
To notify INFINITI of any safety
concerns please contact our Consu-
mer Information Centre toll free at 1-
800- 361-4792.
WARNING
A vehicle equipped with Intelligent All-
Wheel Drive (AWD) should never be
tested using a two wheel dynamometer
(such as the dynamometers used by
some states for emissions testing), or
similar equipment. Make sure you inform
test facility personnel that your vehicle
is equipped with AWD before it is placed
on a dynamometer. Using the wrong test
equipment may result in transmission
damage or unexpected vehicle move-
ment which could result in serious vehicle
damage or personal injury.
Due to legal requirements in some states/
areas, your vehicle may be required to be in
what is called the “ready condition” for an
Inspection/Maintenance (I/M) test of the
emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving
patterns. Usually, the “ready condition” can
be obtained by ordinary usage of the vehicle.
If a powertrain system component is re-
paired or the battery is disconnected, the
vehicle may be reset to a “not ready condi-
tion”. Before taking the I/M test, check the
vehicle’s inspection/maintenance test readi- ness condition. Place the ignition switch in
the ON position without starting the engine.
If the Malfunction Indicator Light (MIL)
comes on steady for 20 seconds and then
blinks for 10 seconds, the I/M test condition
is “not ready”. If the MIL does not blink after
20 seconds, the I/M test condition is
“ready”.
It is recommended you visit an INFINITI
retailer to set the “ready condition” or to
prepare the vehicle for testing.
Technical and consumer information10-25
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST (US only)

Floor mat installation ............................................ 7-6
FluidAutomatic Transmission Fluid (ATF) ....... 8-14
Brake fluid ....................................................... 8-15
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) ............ 5-106
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 .............................................. 5-124
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 .............................. 5-123
Fuses ....................................................................... 8-23
Fusible links ........................................................... 8-25G
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 ............................................ 2-36
Heated seats ......................................................... 2-43
Heated steering wheel ....................................... 2-45
Heater Engine block heater ................................... 5-143
High beam assist ................................................. 2-37
Hill start assist system ..................................... 5-137
HomeLink
®Universal Transceiver .................. 2-58
Hood release ......................................................... 3-23 Hook
Coat hooks ..................................................... 2-50
Trunk hooks ................................................... 2-50
Horn ........................................................................\
. 2-42
Hydraulic pump electric power steering ..... 5-128
I
Idling Stop System ............................................ 5-138
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) ............... 5-125
Intelligent Cruise Control (ICC) ....................... 5-74
11-3

Under the hood and vehicle ......................... 9-4
Maintenance schedules ........................................ 9-6
Malfunction indicator light (MIL) ..................... 2-17
Map lights .............................................................. 2-55
Master warning light .......................................... 2-14
Mechanical key (Intelligent Key system) .......... 3-3
Memory storage Automatic drive positioner ......................... 3-34
Meter Trip computer ................................................. 2-27
Meters and gauges ................................................ 2-6 Instrument brightness control ................... 2-41
Mirror
Inside mirror ................................................... 3-30
Outside mirrors .............................................. 3-31
Vanity mirror ................................................... 3-33
Moonroof ............................................................... 2-53
N
NAVI Shift Control .............................................. 5-20
New vehicle break-in ........................................ 5-123
O
Odometer .................................................................. 2-7
Off-road recovery .................................................. 5-9
Oil Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine oil and filter .................... 8-11
Checking engine oil level ............................. 8-11 Engine oil ........................................................ 8-10
One touch unlock sensor (See Intelligent
Key system) ........................................................... 3-10
Operation Indicators for operation ............................... 2-21
Outside air temperature .................................... 2-29
Outside mirrors .................................................... 3-31
Overheat, If your vehicle overheats ............... 6-16
Owner’s Manual/Service Manual
order information ............................................. 10-26
P
Panic alarm ............................................................ 3-18
Parking Parking brake operation .............................. 5-21
Parking on hills ............................................. 5-127
Parking brake break-in .................................... 5-131
Personal lights ...................................................... 2-56
PERSONAL mode ............................................... 5-25
Phone Car phone or CB radio ................................... 4-4
Power Power door lock ............................................... 3-4
Power outlet ................................................... 2-45
Power steering fluid ..................................... 8-14
Power steering system ............................. 5-128
Power windows ............................................. 2-51
Power moonroof ................................................. 2-53
Power steering warning light ........................... 2-14
Precautions Braking precautions .................................... 5-131 Child restraints ............................................... 1-24
Cruise control ................................................. 5-72
Maintenance ..................................................... 8-3
Seat belt usage .............................................. 1-12
Supplemental restraint system .................. 1-42
When starting and driving ............................ 5-4
Pre-crash seat belts with
comfort function .................................................. 1-14
Predictive Forward Collision
Warning (PFCW) ............................................... 5-114
Push starting ......................................................... 6-16
Push-button ignition switch .............................. 5-11R
Radio
Car phone or CB radio ................................... 4-4
Rain-sensing auto wiper system ..................... 2-34
Rapid air pressure loss .......................................... 5-9
Readiness for inspection/maintenance
(I/M) test (US only) .......................................... 10-25
Rear door lock
Child safety rear door lock ........................... 3-6
Rear seats ................................................................. 1-5
Rear window and outside mirror
defroster switch ................................................... 2-35
Recorders Event data .................................................... 10-26
Registering your vehicle in
another country ................................................ 10-14
Remote engine start ........................................... 3-20
Remote keyless entry system .......................... 3-16
11-5

11-6
Reporting safety defects ................................ 10-24
Request switch (See Intelligent
Key system) ........................................................... 3-10
Roadside assistance program ............................. 6-2
Rollover ..................................................................... 5-9
RoofMoonroof ......................................................... 2-54
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 .................... 1-59 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 .................................................. 8-19
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 ........................... 5-129
Heated steering wheel ................................. 2-45
Power steering fluid ..................................... 8-14
Power steering system ............................. 5-128
Tilt/telescopic steering ................................ 3-28
Storage ................................................................... 2-46
Storage box ........................................................... 2-49
Sun visors ............................................................... 3-30
Sunglasses holder ................................................ 2-48
Supplemental air bag warning labels ............. 1-60
Supplemental air bag warning light ... 1-60, 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 ............................................ 2-36
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 ......................................................... 2-43