ECU INFINITI QX60 2020 Repair Manual

It should not be necessary to remove or dis-
locate the Bose® subwoofer (if so equipped)
Awhen removing the jack and tool kit cover
B.3. Remove the tool kit
Cby releasing the
Velcro straps
D. 4. Remove the jack.
∙ The jack is secured by a fastenerE.To
release the fastener, assemble the
jacking rod
Finto the wheel nut
wrench
Gand rotate counterclock-
wise to release.
∙ Insert the flat end of the wheel nut wrench
Ginto the slot of the fastener
E, and rotate counterclockwise to re-
lease the jack.
5. The lowering mechanism for the spare tire is located on the passenger side of
the cargo area. Remove the cover
Hto
access the lowering mechanism.
LCE2340LCE2348LCE2350
6-6In case of emergency

6. Attach the spare tire winch socketIto
the lowering mechanism nut.
7. To lower the spare tire, insert the wheel nut wrench
Ginto the jacking rodF
and insert the T-shaped end of the jack-
ing rod into the winch socket
Iand
rotate counterclockwise.
8. Once the spare tire is lowered, release it from the vehicle by guiding the lowering
cable and winch through the center of
the tire. NOTE:
Fully lower the spare tire below the vehicle
before attempting to remove the winch from
the spare tire.
9. After removing the spare tire from under the vehicle, be sure to crank the cable up
by rotating the winch socket clockwise
to stow it.
CAUTION
∙ Make sure safety cable is coiled abovespare tire when reinstalling spare
tire/wheel.
∙ When re-installing the spare tire under the vehicle after use, be sure to secure it
with the tire stem facing down toward
the ground. If the spare tire is improperly
secured with the tire stem facing up to-
wards the bottom of the vehicle, there is
an increased risk of separating from the
vehicle in the event of a crash which may
pose a hazard in traffic or risk of injury to
others.
Jacking up vehicle and removing
the damaged tire
WARNING
∙ Never get under the vehicle while it issupported only by the jack. If it is neces-
sary to work under the vehicle, support it
with safety stands.
∙ Use only the jack provided with your ve- hicle to lift the vehicle. Do not use the jack
provided with your vehicle on other ve-
hicles. The jack is designed for lifting only
your vehicle during a tire change.
∙ Use the correct jack-up points. Never use any other part of the vehicle for jack
support.
∙ Never jack up the vehicle more than necessary.
∙ Never use blocks on or under the jack.
∙ Do not start or run the engine while ve- hicle is on the jack. It may cause the ve-
hicle to move. This is especially true for
vehicles with limited slip differentials.
∙ Do not allow passengers to stay in the vehicle while it is on the jack.
LCE2351
In case of emergency6-7

1. Loosen each wheel nut one or two turnsby turning counterclockwise with the
wheel nut wrench. Do not remove the
wheel nuts until the tire is off the
ground.
2. Place the jack directly under the jack-up point so the top of the jack contacts the
vehicle at the jack-up point. The jack-up
points are indicated by stamped arrows
on the side of the frame.
The jack should be used on firm and level
ground.
3. Install the assembled jacking rod into thejack.
4. To lift the vehicle, securely hold the jack lever and rod. Carefully raise the vehicle
until the tire clears the ground. NOTE:
If the lug nut wrench/jack handle contacts
the ground while raising the vehicle, disas-
semble the lug nut wrench from the jack ex-
tension rod, rotate it 90 degrees and reas-
semble.
5. Remove the wheel nuts and then remove the tire.
LCE0087
LCE2043
In case of emergency6-9

Installing the spare tire
The spare tire is designed for emergency use.
For additional information, refer to “Wheels
and tires” in the “Do-it-yourself” section of
this manual.1. Clean any mud or dirt from the surface between the wheel and hub.
2. Carefully put the spare tire on and tighten the wheel nuts finger tight.
3. With the wheel nut wrench, tighten wheel nuts alternately and evenly in the
sequence illustrated (
A,B,C,D,E)
until they are tight. 4. Lower the vehicle slowly until the tire
touches the ground. Then, with the
wheel nut wrench, tighten the wheel
nuts securely in the sequence illustrated
(
A,B,C,D,E). Lower the vehicle
completely.
WARNING
∙ Incorrect wheel nuts or improperly tight- ened wheel nuts can cause the wheel to
become loose or come off. This could
cause an accident.
∙ Do not use oil or grease on the wheel studs or nuts. This could cause the nuts to
become loose.
∙ Retighten the wheel nuts when the ve- hicle has been driven for 621 miles
(1,000 km) (also in cases of a flat tire,
etc.).
As soon as possible, tighten the wheel nuts
to the specified torque with a torque wrench.
Wheel nut tightening torque: 83 ft-lb (113 N·m)
The wheel nuts must be kept tightened to
specification at all times. It is recommended
that wheel nuts be tightened to specifica-
tions at each lubrication interval. Adjust tire pressure to the COLD pressure.
COLD pressure: After vehicle has been
parked for 3 hours or more or driven less
than 1 mile (1.6 km).
COLD tire pressures are shown on the Tire
and Loading Information label affixed to the
driver side center pillar.
5. Securely store the flat tire, tools and jacking equipment in the vehicle.
6. Close the liftgate.
WARNING
∙ Always make sure that the spare tire and jacking equipment are properly secured
after use. Such items can become danger-
ous projectiles in an accident or sudden
stop.
∙ The spare tire is designed for emergency use. For additional information, refer to
“Wheels and tires” in the “Do-it-
yourself” section of this manual.WCE0056
6-10In case of emergency

Two-Wheel Drive models with
Continuously Variable Transmission
(CVT)
INFINITI recommends that your vehicle be
towed with the driving (front) wheels off the
ground or place the vehicle on a flatbed truck
as illustrated.
CAUTION
∙ Never tow CVT models with the frontwheels on the ground or four wheels on
the ground (forward or backward), as
this may cause serious and expensive
damage to the transmission. If it is neces-
sary to tow the vehicle with the rear
wheels raised always use towing dollies
under the front wheels.
∙ When towing CVT models with the rear wheels on the ground or on towing
dollies: – Place the ignition switch in the OFF
position, and secure the steering
wheel in a straight-ahead position
with a rope or similar device. Never
secure the steering wheel by placing
the ignition switch in the LOCK posi-
tion. This may damage the steering
lock mechanism (for models with a
steering lock mechanism).
VEHICLE RECOVERY (freeing a
stuck vehicle)
WARNING
To avoid vehicle damage, serious personal
injury or death when recovering a stuck
vehicle:
∙ Contact a professional towing service torecover the vehicle if you have any ques-
tions regarding the recovery procedure.
∙ Tow chains or cables must be attached only to main structural members of the
vehicle.
∙ Do not use the vehicle tie-downs to tow or free a stuck vehicle.
∙ Only use devices specifically designed for vehicle recovery and follow the manufac-
turer’s instructions.LCE2371
6-16In case of emergency

When installing Genuine INFINITI floor mats,
follow the installation instructions provided
with the mat and the following:1. With the ignition in the OFF position, the shift lever in P (Park) position and with
the parking brake fully applied, position
the floor mat in the floorwell so that the
floor mat grommet holes are aligned
with the hook(s).
2. Secure the grommet holes into the hook(s) and ensure that the floor mat is
properly positioned.
3. Make sure the floor mat does not inter- fere with pedal operation. With the igni-
tion still in the OFF position, the shift
lever in the P (Park) position and with the
parking brake applied, fully apply and
release all pedals. The floor mat must not
interfere with pedal operation or prevent
the pedal from returning to its normal
position.
It is recommended that you visit an INFINITI
retailer for details about installing the floor
mats in your vehicle. The illustration shows the location of the
floor mat positioning hooks.
Floor mat installation for 3rd row
seats
When installing Genuine INFINITI floor mats
in the 3rd row seating positions:
1. Position the floor mat in the floorwell so that the floor mat’s installation tabs are
aligned with the rearmost part of 2nd
row seat tracks.
2. Insert the floor mat installation tabs
A
underneath the 2nd row seat tracksB
and ensure that the floor mat is properly
positioned.
Positioning hooks
LAI2003LAI2089
7-6Appearance and care

When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to your-
self or damage to the vehicle. The following
are general precautions which should be
closely observed.
WARNING
∙ Park the vehicle on a level surface, applythe parking brake securely and block the
wheels to prevent the vehicle from mov-
ing. Move the shift lever to P (Park).
∙ Be sure the ignition switch is in the OFF or LOCK position when performing any
parts replacement or repairs.
∙ If you must work with the engine running, keep your hands, clothing, hair and tools
away from moving fans, belts and any
other moving parts.
∙ It is advisable to secure or remove any loose clothing and remove any jewelry,
such as rings, watches, etc. before work-
ing on your vehicle.
∙ Always wear eye protection whenever you work on your vehicle. ∙ Your vehicle is equipped with an auto-
matic engine cooling fan. It may come on
at any time without warning, even if the
ignition switch is in the OFF position and
the engine is not running. To avoid injury,
always disconnect the negative battery
cable before working near the fan.
∙ If you must run the engine in an enclosed space such as a garage, be sure there is
proper ventilation for exhaust gases to
escape.
∙ Never get under the vehicle while it is supported only by a jack. If it is necessary
to work under the vehicle, support it with
safety stands.
∙ Keep smoking materials, flame and sparks away from the fuel tank and
battery.
∙ Because the fuel lines on gasoline engine models are under high pressure even
when the engine is off, it is recommended
that you visit an INFINITI retailer for ser-
vice of the fuel filter or fuel lines.
CAUTION
∙ Do not work under the hood while theengine is hot. Turn the engine off and
wait until it cools down. ∙ Avoid contact with used engine oil and
coolant. Improperly disposed engine oil,
engine coolant and/or other vehicle flu-
ids can damage the environment. Always
conform to local regulations for disposal
of vehicle fluid.
∙ Never leave the engine or Continuously Variable Transmission (CVT) related
component harnesses disconnected
while the ignition switch is in the ON
position.
∙ Never connect or disconnect the battery or any transistorized component while
the ignition switch is in the ON position.
This “Do-it-yourself” section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A Genuine INFINITI service manual is also
available. For additional information, refer to
“Owner’s Manual/Service Manual order in-
formation” in the “Technical and consumer
information” section of this manual.
You should be aware that incomplete or im-
proper servicing may result in operating diffi-
culties or excessive emissions, and could af-
fect warranty coverage. If in doubt about any
servicing, it is recommended that you have it
done by an INFINITI retailer.
MAINTENANCE PRECAUTIONS
8-2Do-it-yourself

CAUTION
Be careful not to burn yourself, as the en-
gine oil is hot.
WARNING
∙ Prolonged and repeated contact withused engine oil may cause skin cancer.
∙ Try to avoid direct skin contact with used oil. If skin contact is made, wash thor-
oughly with soap or hand cleaner as soon
as possible.
∙ Keep used engine oil out of reach of children.
4. Loosen the oil filter with an oil filter wrench by turning it counterclockwise.
Remove the oil filter by turning it by
hand.
5. Wipe the engine oil filter mounting sur- face with a clean rag.
CAUTION
Be sure to remove any old gasket material
remaining on the sealing surface of the en-
gine. Failure to do so could lead to an oil
leak and engine damage. ∙ The dipstick must be inserted in place to
prevent oil spillage from the dipstick hole
when filling the engine with oil.
6. Coat the gasket on the new filter with clean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten ad-
ditionally more than 2/3 turn.
Oil filter tightening torque: 11 to 15 ft-lb (15.0 to 21.0 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten the drain
plug with a wrench. Do not use excessive
force.
Drain plug tightening torque: 22 to 29 ft-lb (29.4 to 39.2 N·m)
9. Refill the engine with the recommended oil through the oil filler opening, and in-
stall the oil filler cap securely.
For additional information about drain and
refill capacity, refer to “Recommended
fluids/lubricants and capacities” in the “Tech-
nical and consumer information” section of
this manual. The drain and refill capacity de-
pends on the oil temperature and drain time.
Use these specifications for reference only. Always use the dipstick to determine the
proper amount of oil in the engine.
10. Start the engine and check for leakage
around the drain plug and the oil filter.
Correct as required. Turn the engine off
and wait more than 15 minutes. Check
the oil level with the dipstick. Add engine
oil if necessary.
After the operation
1. Reinstall engine protectors in reverse or-der of removal.
2. Lower the vehicle carefully to the ground.
3. Reset oil and oil filter maintenance re- minder. For additional information, refer
to “Vehicle information display” in the
“Instruments and controls” section of
this manual.
∙ Dispose of waste oil and filter properly.
∙ Check your local regulations.
Do-it-yourself8-9

∙ If the battery is labeled “do not open” it ismaintenance free and battery fluid
should not be checked. It is recom-
mended that you visit an INFINITI retailer
or a qualified specialist workshop to con-
firm the battery’s performance.
∙ Keep the battery surface clean and dry. Clean the battery with a solution of bak-
ing soda and water.
∙ Make certain the terminal connections are clean and securely tightened.
∙ If the vehicle is not to be used for 30 days or longer, disconnect the negative (-) bat-
tery terminal cable to prevent discharge.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as: 1. Installation or extended use of elec-
tronic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.WARNING
∙ Do not expose the battery to flames, an electrical spark or a cigarette. Hydrogen
gas generated by the battery is explo-
sive. Explosive gases can cause blindness
or injury. Do not allow battery fluid to
contact your skin, eyes, fabrics or painted
surfaces. Sulfuric acid can cause blind-
ness or injury. After touching a battery or
battery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If the
acid contacts your eyes, skin or clothing,
immediately flush with water for at least
15 minutes and seek medical attention.
∙ When working on or near a battery, al- ways wear suitable eye protection and
remove all jewelry.
∙ Battery posts, terminals and related ac- cessories contain lead and lead com-
pounds. Wash hands after handling.
∙ Keep battery out of the reach of children.
∙ Do not tip the battery. NOTE:
Do not try to open the top of the battery.
This battery is not equipped with removable
vent caps.
JUMP STARTING
If jump starting is necessary, refer to “Jump
starting” in the “In case of emergency” section
of this manual. If the engine does not start by
jump starting, the battery may have to be
replaced. It is recommended that you visit an
INFINITI retailer for this service.
LDI3302
8-14Do-it-yourself

WARNING
Be sure the engine and ignition switch are
off and that the parking brake is engaged
securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
If replacement is required, it is recommended
that you visit an INFINITI retailer for this
service.
WARNING
∙ Operating the engine with the air cleaner filter off can cause you or others to be
burned. The air cleaner filter not only
cleans the intake air, it also stops the
flame if the engine backfires. If the air
cleaner is not installed and the engine
backfires, you could be burned. Never
drive with the air cleaner filter off. Be
cautious working on the engine when the
air cleaner is off. ∙ Never pour fuel into the throttle body or
attempt to start the engine with the air
cleaner removed. Doing so could result in
serious injury.
To remove the filter from the air cleaner, push
the tabs
Aand pull the cover upward.
The viscous paper type filter element should
not be cleaned and reused. Replace it accord-
ing to the maintenance log shown in the
“Maintenance and schedules” section of this
manual.
When replacing the air filter, wipe the inside
of the air cleaner housing and the cover with
a damp cloth.
NOTE:
After installing a new air cleaner filter, make
sure the air cleaner cover is seated in the
housing and latch the clips
A.
IN-CABIN MICROFILTER
The in-cabin microfilter restricts the entry of
airborne dust and pollen particles and re-
duces some objectionable outside odors. The
filter is located behind the glove box. Refer to
the "Maintenance and schedules" section of
this manual for change intervals.
LDI3279
AIR CLEANER
8-16Do-it-yourself