2019 INFINITI QX50 suspension

CHASSIS & BODY
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
Brake lines & cables II I II I
Brake pads & rotors II I II I
Brake fluid RRR
CVT fluid See NOTE (1)II I II I
Transfer fluid & differential gear oil See NOTE (2)II I II I
Steering gear & linkage, axle & suspension parts  III
Tire rotation See NOTE (3)
Propeller shaft & drive shaft boots (AWD models) II I II I
Exhaust system III
In-cabin microfilter RRRR
Intelligent Key battery IRRR
Maintenance and schedules9-11

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
Brake lines & cables IIIIII
Brake pads & rotors IIIIII
Brake fluid RRR
CVT fluid See NOTE (1)IIIIII
Transfer fluid & differential gear oil See NOTE (2)IIIIII
Steering gear & linkage, axle & suspension parts  III
Tire rotation See NOTE (3)
Propeller shaft & drive shaft boots (AWD models) IIIIII
Exhaust system III
In-cabin microfilter RRRR
Intelligent Key battery RRRR
NOTE:
Maintenance items with “” should be performed more frequently according to “Maintenance under severe driving conditions”.
(1) If using a car-top carrier or driving on rough or muddy roads, inspect CVT fluid deterioration every 60,000 miles (96,000 km), then change
CVT fluid if necessary. And if the inspection is not performed, change (not just inspect) CVT fluid every 60,000 miles (96,000 km). It is
recommended that you visit an INFINITI retailer for this service.
(2) 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.
(3) For additional information on tire rotation, refer to “General maintenance” in this section.
9-12Maintenance and schedules

The maintenance intervals shown on the preceding pages are for normal operating conditions. If the vehicle is mainly operated under severe
driving conditions as shown below, more frequent maintenance must be performed on the following items as shown in the table.
SEVERE DRIVING CONDITIONS
∙ 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.
∙ Using a car-top carrier.
Maintenance operation: Inspect = Inspect
and correct or replace as necessary.
Maintenance operation: Inspect = Inspect and correct or replace as necessary.
Maintenance item Maintenance operation Maintenance interval
Brake fluid ReplaceEvery 7,500 miles (12,000 km) or 12 months
Brake pads & rotors InspectEvery 3,750 miles (6,000 km) or 6 months
Steering gear & linkage, axle & suspension parts InspectEvery 3,750 miles (6,000 km) or 6 months
Propeller shaft & drive shaft boots (AWD models) InspectEvery 3,750 miles (6,000 km) or 6 months
Exhaust system InspectEvery 3,750 miles (6,000 km) or 6 months
MAINTENANCE UNDER SEVERE
OPERATING CONDITIONS
Maintenance and schedules9-13

Safety chains
Always use suitable safety chains between
your vehicle and the trailer. The safety chains
should be crossed and should be attached to
the hitch, not to the vehicle bumper or axle.
The safety chains can be attached to the
bumper if the hitch ball is mounted to the
bumper. Be sure to leave enough slack in the
chains to permit turning corners.
Trailer lights
CAUTION
When splicing into the vehicle electrical
system, a commercially available power-
type module/converter must be used to
provide power for all trailer lighting. This
unit uses the vehicle battery as a direct
power source for all trailer lights while us-
ing the vehicle tail light, stop light and turn
signal circuits as a signal source. The
module/converter must draw no more than
15 milliamps from the stop and tail lamp
circuits. Using a module/converter that ex-
ceeds these power requirements may dam-
age the vehicle’s electrical system. See a
reputable trailer retailer to obtain the
proper equipment and to have it installed.Trailer lights should comply with federal
and/or local regulations. For assistance in
hooking up trailer lights, contact an INFINITI
retailer or reputable trailer retailer. Vehicles
equipped with the optional trailer tow pack-
age are equipped with a 7-pin trailer harness
connector. If your trailer is equipped with a
flat 4-pin connector, an adapter will be
needed to connect the trailer lights to the
vehicle. Adapters are available at auto parts
stores and hitch retailers.
Trailer brakes
Most states require a separate braking sys-
tem on trailers with a loaded weight above a
specific amount, make sure the trailer meets
the local regulations and the regulations
where you plan to tow.
Several types of braking systems are avail-
able.
Surge Brakes -
The surge brake actuator is
mounted on the trailer tongue with a hydrau-
lic line running to each trailer wheel. Surge
brakes are activated by the trailer pushing
against the hitch ball when the tow vehicle is
braking. Hydraulic surge brakes are common
on rental trailers and some boat trailers. In
this type of system, there is no hydraulic or
electric connection for brake operation be-
tween the tow vehicle and the trailer. Electric Trailer Brakes -
Electric braking sys-
tems are activated by an electronic signal
sent from a trailer brake controller (special
brake-sensing module).
Have a professional supplier of towing
equipment make sure the trailer brakes are
properly installed and demonstrate proper
brake function testing.
WARNING
Never connect a trailer brake system di-
rectly to the vehicle brake system.
Pre-towing tips
∙ Be certain your vehicle maintains a level position when a loaded and/or unloaded
trailer is hitched. Do not drive the vehicle
if it has an abnormal nose-up or nose-
down condition; check for improper
tongue load, overload, worn suspension
or other possible causes of either condi-
tion.
∙ Always secure items in the trailer to pre- vent load shift while driving.
∙ Keep the cargo load as low as possible in the trailer to keep the trailer center of
gravity low.
Technical and consumer information10-25