mileage INFINITI QX50 2019 Owner's Manual

∙When the INFINITI InTouch™ system
malfunctions or does not operate nor-
mally.
∙ While driving (the vehicle is not
stopped). The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will
still have braking at two wheels.
BRAKE PRECAUTIONS
Vacuum assisted brakes
The brake booster aids braking by using en-
gine vacuum. If the engine stops, you can
stop the vehicle by depressing the brake
pedal. However, greater foot pressure on the
brake pedal will be required to stop the ve-
hicle and stopping distance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal
while driving. This will overheat the brakes,
wear out the brake pads faster, and reduce
gas mileage.
To help reduce brake wear and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down
a slope or long grade. Overheated brakes
may reduce braking performance and could
result in loss of vehicle control.
WARNING
∙ While driving on a slippery surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or acceler-
ating could cause the wheels to skid and
result in an accident.
∙ If the engine is not running or is turned off while driving, the power assist for the
brakes will not work. Braking will be
harder.
Wet brakes
When the vehicle is washed or driven through
water, the brakes may get wet. As a result,
your braking distance will be longer and the
vehicle may pull to one side during braking.
To dry the brakes, drive the vehicle at a safe
speed while lightly pressing the brake pedal
to heat up the brakes. Do this until the brakes
return to normal. Avoid driving the vehicle at
high speeds until the brakes function cor-
rectly.
Parking brake break-in
Break in the parking brake shoes whenever
the stopping effect of the parking brake is
weakened or whenever the parking brake
shoes and/or rotors are replaced, in order to
assure the best brake performance.
BRAKE SYSTEM
Starting and driving5-179

Radiator and hoses:Check the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure
the hoses have no cracks, deformation, rot or
loose connections.
Underbody: The underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances, oth-
erwise rust may form on the floor pan, frame,
fuel lines and around the exhaust system. At
the end of winter, the underbody should be
thoroughly flushed with plain water, being
careful to clean those areas where mud and
dirt may accumulate. For additional informa-
tion, refer to the “Appearance and care” sec-
tion of this manual.
Windshield-washer fluid*: Check that there
is adequate fluid in the reservoir. The following descriptions are provided to
give you a better understanding of the sched-
uled maintenance items that should be regu-
larly checked or replaced. The maintenance
schedule indicates at which mileage/time in-
tervals each item requires service.
In addition to scheduled maintenance, your
vehicle requires that some items be checked
during normal day-to-day operation. For ad-
ditional information, refer to “General main-
tenance” in this section.
Items marked with
“*”are recommended by
INFINITI for reliable vehicle operation. You
are not required to perform maintenance on
these items in order to maintain the warran-
ties which come with your INFINITI. Other
maintenance items and intervals are required.
When applicable, additional information can
be found in the “Do-it-yourself” section of
this manual. NOTE:
INFINITI does not advocate the use of non-
OEM approved aftermarket flushing sys-
tems and strongly advises against perform-
ing these services on an INFINITI product.
Many of the aftermarket flushing systems
use non-OEM approved chemicals or sol-
vents, the use of which has not been vali-
dated by INFINITI.
For recommended fuel, lubricants, fluids,
grease, and refrigerant, refer to “Recom-
mended fluids/lubricants and capacities” in
the “Technical and consumer information”
section of this manual.
EMISSION CONTROL SYSTEM
MAINTENANCE:
Drive belt*:
Check engine drive belt for wear,
fraying or cracking and for proper tension.
Replace any damaged drive belt.
Engine air filter: Replace at specified inter-
vals. When driving for prolonged periods in
dusty conditions, check/replace the filter
more frequently.
EXPLANATION OF SCHEDULED
MAINTENANCE ITEMS
Maintenance and schedules9-5

To help ensure smooth, safe and economical
driving, INFINITI provides two maintenance
schedules that may be used, depending upon
the conditions in which you usually drive.
These schedules contain both distance and
time intervals, up to 90,000 miles
(144,000 km)/144 months. For most
people, the odometer reading will indicate
when service is needed. However, if you drive
very little, your vehicle should be serviced at
the regular time intervals shown in the sched-
ule.
After 90,000 miles
(144,000 km)/144 months, continue main-
tenance at the same mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe op-
erating conditionsshould be performed on
vehicles that are driven under especially de-
manding conditions. Additional maintenance
items should be performed if you primarily
operate your vehicle under the following con-
ditions:
∙ Repeated short trips of less than 5 miles (8 km). ∙ Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
∙ Operating in hot weather in stop-and-go “rush hour” traffic.
∙ Extensive idling and/or low speed driving for long distances, such as police, taxi or
door-to-door delivery use.
∙ Driving in dusty conditions.
∙ Driving on rough, muddy or salt spread roads.
∙ Towing a trailer, using a camper or a car-top carrier.
NOTE:
For vehicles operated in Canada, both stan-
dard and severe maintenance items should
be performed at every interval.
OIL CONTROL SYSTEM
Your vehicle is equipped with oil control sys-
tem. It calculates engine oil and filter change
intervals based on driving conditions. Driving
in the following severe conditions will shorten
the engine oil and filter change interval.
MAINTENANCE SCHEDULES
Maintenance and schedules9-7

The following tables show the standard
maintenance schedule. Depending upon
weather and atmospheric conditions, varying
road surfaces, individual driving habits and
vehicle usage, additional or more frequent
maintenance may be required.After
90,000 miles (144,000 km)/144 months,
continue maintenance at the same
mileage/time interval.
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
3.75 (6)6 7.5
(12) 12 11.25
(18)18 15
(24) 24 18.75
(30)30 22.5
(36) 36 26.25
(42)42 30
(48) 48 33.75
(54)54 37.5
(60) 60 41.25
(66)66 45
(72) 72
Drive belt See NOTE (1) I*I*I*
Air cleaner filter See NOTE (2) R
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil See NOTE (6)RRRRRR
Engine oil filter See NOTE (6)RRRRRR
Spark plugs See NOTE (7)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (8)
STANDARD MAINTENANCE
Maintenance and schedules9-9

MAINTENANCE OPERATION
Perform at number of miles, kilometers or months, whichever comes first. Miles x 1,000
(km x 1,000) Months MAINTENANCE INTERVAL
48.75 (78)78 52.5
(84) 84 56.25
(90)90 60
(96) 96 63.75
(102) 102 67.5
(108) 108 71.25
(114) 114 75
(120) 120 78.75
(126) 126 82.5
(132) 132 86.25
(138) 138 90
(144) 144
Drive belt See NOTE (1)I*I*I*I*I*I*
Air cleaner filter See NOTE (2)R R
EVAP vapor lines I*I*I*
Fuel lines I*I*I*
Fuel filter See NOTE (3)
Engine coolant* See NOTE (4)(5)
Engine oil See NOTE (6)RRRRRR
Engine oil filter See NOTE (6)RRRRRR
Spark plugs See NOTE (7)Replace every 105,000 miles (168,000 km)
Intake and exhaust valve clearances* See NOTE (8)
NOTE:
(1) After 30,000 miles (48,000 km) or 48 months, inspect every 7,500 miles (12,000 km) or 12 months. Replace the drive belts if found
damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Periodic maintenance is not required.
(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 within two weeks or less than 500 miles (800 km)
(7) Replace spark plug when the plug gap exceeds 0.045 in (1.15 mm) even if within specified periodic replacement mileage.
(8) Periodic maintenance is not required. However, if valve noise increased, inspect valve clearance.
* 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.
9-10Maintenance and schedules

3,750 Miles (6,000 km) or 6
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:7,500 Miles (12,000 km) or 12
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:11,250 Miles (18,000 km) or 18
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
15,000 Miles (24,000 km) or 24
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 18,750 Miles (30,000 km) or 30
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:22,500 Miles (36,000 km) or 36
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
26,250 Miles (42,000 km) or 42
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 30,000 Miles (48,000 km) or 48
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:33,750 Miles (54,000 km) or 54
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
MAINTENANCE LOG
9-14Maintenance and schedules

37,500 Miles (60,000 km) or 60
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:41,250 Miles (66,000 km) or 66
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:45,000 Miles (72,000 km) or 72
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
48,750 Miles (78,000 km) or 78
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 52,500 Miles (84,000 km) or 84
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:56,250 Miles (90,000 km) or 90
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
60,000 Miles (96,000 km) or 96
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 63,750 Miles (102,000 km) or 102
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:67,500 Miles (108,000 km) or 108
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
Maintenance and schedules9-15

71,250 Miles (114,000 km) or 114
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:75,000 Miles (120,000 km) or 120
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:78,750 Miles (126,000 km) or 126
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
82,500 Miles (132,000 km) or 132
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp: 86,250 Miles (138,000 km) or 138
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:90,000 Miles (144,000 km) or 144
Months
Retailer Name:
Date:
Mileage:
Retailer
Stamp:
9-16
Maintenance and schedules