2018 INFINITI QX80 service

1-48Safety — seats, seat belts and supplemental restraint system
SSS1073
3rd row bench seat
Installing top tether strap
WARNING
In the 3rd row bench seat, a child
restraint with a top tether strap can
only be used in the center position. Do
not place in an outboard seating position
and attempt to angle the tether strap to
the center position.
First, secure the child restraint with the seat
belt. 1. If necessary, raise or remove the head
restraint or headrest to position the top
tether strap over the top of the seatback.
If the head restraint or headrest is
removed, store it in a secure place. Be
sure to reinstall the head restraint or
headrest when the child restraint is
removed. See “Head restraints/head-
rests” (P.1-13) for head restraint or
headrest adjustment, removal and in-
stallation information.
2. Secure the tether strap to the tether anchor point on the back of each seat-
back (2nd row seat) or on the floor (3rd
row seat) behind the child restraint.
3. Tighten the tether strap according to the manufacturer’s instructions to remove
any slack. Make sure the head restraint
or headrest does not contact the top
tether strap.
If you have any questions when installing a
top tether strap on the rear seat, it is
recommended you visit an INFINITI retailer
for this service.
BOOSTER SEATS
Precautions on booster seats
WARNING
If a booster seat and seat belt are not
used properly, the risk of a child being
injured in a sudden stop or collision
greatly increases:
. Make sure the shoulder portion of
the belt is away from the child’s face
and neck and the lap portion of the
belt does not cross the stomach.
. Make sure the shoulder belt is not
behind the child or under the child’s
arm.
. A booster seat must only be installed
in a seating position that has a lap/
shoulder belt.

1-62Safety — seats, seat belts and supplemental restraint system
may or may not be illuminated, depending on
the size of the child and the type of child
restraint being used. If the front passenger
air bag status light is not illuminated (in-
dicating that the air bag might inflate in a
crash), it could be that the child restraint or
seat belt is not being used properly. Make
sure that the child restraint is installed
properly, the seat belt is used properly and
the occupant is positioned properly. If the
front passenger air bag status light is still not
illuminated, reposition the occupant or child
restraint in a rear seat.
If the front passenger air bag status light will
not illuminate even though you believe that
the child restraint, the seat belts and the
occupant are properly positioned, the sys-
tem may be sensing an unoccupied seat (in
which case the air bag is OFF). Your
INFINITI retailer can check that the system
is OFF by using a special tool. However, until
you have confirmed with your retailer that
your air bag is working properly, reposition
the occupant or child restraint in a rear seat.
The INFINITI Advanced Air Bag System and
front passenger air bag status light will take
a few seconds to register a change in the
passenger seat status. However, if the seat
becomes unoccupied, the front passenger air
bag status light will remain off.
If a malfunction occurs in the front passen-
ger air bag system, the supplemental air bagwarning light, located in the meter and
gauges area will blink. Have the system
checked. It is recommended you visit an
INFINITI retailer for this service.
Normal operation:
In order for the occupant classification
sensor system to classify the front passen-
ger based on weight, please follow the
precautions and steps outlined below:
Precautions:
. Make sure that there are no objects
weighing over 9.1 lbs (4 kg) hanging on
the seat or placed in the seatback pocket.
. Make sure that a child restraint or other
object is not pressing against the rear of
the seatback.
. Make sure that a rear passenger is not
pushing or pulling on the back of the
front passenger seat.
. Make sure that the front passenger seat
or seatback is not forced back against an
object on the seat or floor behind it.
. Make sure that there is no object placed
under the front passenger seat.
Steps:
1. Adjust the seat as outlined. (See “Seats” (P.1-3).) Sit upright, leaning against the
seatback, and centered on the seat
cushion with your feet comfortably ex-
tended to the floor. 2. Make sure there are no objects on your
lap.
3. Fasten the seat belt as outlined. (See “Seat belts” (P.1-18).)
4. Remain in this position for 30 seconds allowing the system to classify the front
passenger before the vehicle is put into
motion.
5. Ensure proper classification by checking the front passenger air bag status light.
NOTE:
This vehicle’s occupant classification sensor
system locks the classification during driv-
ing so it is important that you confirm that
the front passenger is properly classified
prior to driving. Also, the occupant classifi-
cation sensor system may recalculate the
weight of the occupant when the vehicle
comes to a stop (i.e. stop light, stop sign,
etc.), so the front passenger seat occupant
should continue to remain seated as out-
lined above.
Troubleshooting:
If you think the front passenger air bag
status light is incorrect: 1. If the light is ON with no front passenger and no objects on the front
passenger seat:
This may be due to the following conditions
that may be interfering with the weight

seats by placing material near the
seatback or by installing additional
trim material, such as seat covers,
around the side air bags.
. Removing or modifying the front
passenger seat may affect the func-
tion of the air bag system and result
in serious personal injury.
. It is recommended you visit an
INFINITI retailer for work on and
around the side air bag and curtain
air bag. It is also recommended you
visit an INFINITI retailer for installa-
tion of electrical equipment. The
Supplemental Restraint System
(SRS) wiring harnesses* should not
be modified or disconnected. Un-
authorized electrical test equipment
and probing devices should not be
used on the side-impact air bag
system.
* The SRS wiring harness connectors are
yellow and orange for easy identifica-
tion.
When selling your vehicle, we request that
you inform the buyer about the side air bag
and curtain air bag systems and guide the
buyer to the appropriate sections in this
Owner’s Manual.SEAT BELTS WITH PRETEN-
SIONERS (front seats)
WARNING
. The pretensioners cannot be reused
after activation. They must be re-
placed together with the retractor
and buckle as a unit.
. If the vehicle becomes involved in a
collision but a pretensioner is not
activated, be sure to have the pre-
tensioner system checked and, if
necessary, replaced. It is recom-
mended you visit an INFINITI retailer
for this service.
. No unauthorized changes should be
made to any components or wiring of
the pretensioner system. This is to
prevent damage to or accidental
activation of the pretensioners. Tam-
pering with the pretensioner system
may result in serious personal injury.
. It is recommended you visit an
INFINITI retailer for work on and
around the pretensioner system. It is
also recommended you visit an
INFINITI retailer for installation of
electrical equipment. Unauthorized
electrical test equipment and probing devices should not be used on the
pretensioner system.
. If you need to dispose of a preten-
sioner or scrap the vehicle, it is
recommended you visit an INFINITI
retailer for this service. Correct pre-
tensioner disposal procedures are set
forth in the appropriate INFINITI
Service Manual. Incorrect disposal
procedures could cause personal in-
jury.
The pretensioner system may activate with
the supplemental air bag system in certain
types of collisions. Working with the seat
belt retractor, it helps tighten the seat belt
when the vehicle becomes involved in certain
types of collisions, helping to restrain front
seat occupants.
The pretensioner is encased with the seat
belt retractor and buckle anchor. These seat
belts are used the same way as conventional
seat belts.
When a pretensioner activates, smoke is
released and a loud noise may be heard. The
smoke is not harmful, and it does not
indicate a fire. Care should be taken not to
inhale it as it may cause irritation and
choking. Those with a history of a breathing
condition should get fresh air promptly.
Safety — seats, seat belts and supplemental restraint system1-67

1-68Safety — seats, seat belts and supplemental restraint system
After pretensioner activation, load limiters
allow the seat belt to release webbing (if
necessary) to reduce forces against the
chest.
The supplemental air bag warning light
is used to indicate malfunctions in the
pretensioner system. (See “Supplemental
air bag warning light” (P.1-69) for more
details.) If the operation of the supplemental
air bag warning light indicates there is a
malfunction, have the system checked. It is
recommended you visit an INFINITI retailer
for this service.
When selling your vehicle, we request that
you inform the buyer about the pretensioner
system and guide the buyer to the appro-
priate sections in this Owner’s Manual.
SSS1016
SUPPLEMENTAL AIR BAG
WARNING LABELS
Warning labels about the supplemental
front-impact air bag system are placed in
the vehicle as shown in the illustration.
SRS air bag
The warning labelsare located on the
surface of the sun visors.
WARNING
Do not use a rear-facing child restraint
on a seat protected by an air bag in front
of it. If the air bag deploys, it may cause serious injury or death.

SPA1097
SUPPLEMENTAL AIR BAG
WARNING LIGHT
The supplemental air bag warning light,
displayingin the instrument panel,
monitors the circuits for the air bag systems,
pretensioners and all related wiring.
When the ignition switch is in the ON
position, the supplemental air bag warning
light illuminates for about 7 seconds and
then turns off. This means the system is
operational.
If any of the following conditions occur, the
air bag and/or pretensioner systems need
servicing: .
The supplemental air bag warning light
remains on after approximately 7 sec-
onds.
. The supplemental air bag warning light
flashes intermittently.
. The supplemental air bag warning light
does not come on at all.
Under these conditions, the air bag and/or
pretensioner systems may not operate prop-
erly. They must be checked and repaired. It is
recommended you visit an INFINITI retailer
for this service.
WARNING
If the supplemental air bag warning light
is on, it could mean that the front air
bag, side air bag, curtain air bag and/or
pretensioner systems will not operate in
an accident. To help avoid injury to
yourself or others, have your vehicle
checked as soon as possible. It is recom-
mended you visit an INFINITI retailer for
this service.
REPAIR AND REPLACEMENT
PROCEDURE
The front air bags, side air bags, curtain air
bags and pretensioners are designed to
activate on a one-time-only basis. As a
reminder, unless it is damaged, the supple-
mental air bag warning light will remain
illuminated after inflation has occurred.
These systems should be repaired and/or
replaced as soon as possible. It is recom-
mended you visit an INFINITI retailer for this
service.
When maintenance work is required on the
vehicle, the front air bags, side air bags,
curtain air bags, pretensioners and related
parts should be pointed out to the person
conducting the maintenance. The ignition
switch should always be in the LOCK
position when working under the hood or
inside the vehicle.
WARNING
. Once a front air bag, side air bag or
curtain air bag has inflated, the air
bag module will not function again
and must be replaced. Additionally,
the activated pretensioner must also
be replaced. The air bag module and
pretensioner should be replaced. It is
Safety — seats, seat belts and supplemental restraint system1-69

1-70Safety — seats, seat belts and supplemental restraint system
recommended you visit an INFINITI
retailer for this service. However, the
air bag module and pretensioner
system cannot be repaired.
. The front air bag, side air bag, curtain
air bag and the pretensioner should
be inspected if there is any damage to
the front end or side portion of the
vehicle. It is recommended you visit
an INFINITI retailer for this service.
. If you need to dispose of a supple-
mental air bag or pretensioner or
scrap the vehicle, it is recommended
you visit an INFINITI retailer. Correct
supplemental air bag and preten-
sioner system disposal procedures
are set forth in the appropriate
INFINITI Service Manual. Incorrect
disposal procedures could cause per-
sonal injury.
. If there is an impact to your vehicle
from any direction, your Occupant
Classification Sensor (OCS) should be
checked to verify it is still functioning
correctly. It is recommended that you
visit an INFINITI retailer for this
service. The OCS should be checked
even if no air bags deploy as a result
of the impact. Failure to verify proper
OCS function may result in an im-
proper air bag deployment resulting in injury or death.

SIC4374
FUEL GAUGE
The gauge indicates theapproximatefuel
level in the tank.
The gauge may move slightly during braking,
turning, acceleration, or going up or down
hills.
The gauge needle returns to 0 (Empty) after
the ignition switch is pushed to the OFF
position.
Refill the fuel tank before the gauge
registers “0” (Empty).
The low fuel warning
appears on the
vehicle information display when the fuel
tank is getting low. Refuel as soon as it is
convenient, preferably before the gauge reaches “0”. There will be a small reserve of
fuel in the tank when the fuel gauge needle
reaches “0”.
The
indicates that the fuel-filler door is
located on the driver’s side of the vehicle.
CAUTION
. If the vehicle runs out of fuel, themalfunction indicator light (MIL) may
come on. Refuel as soon as possible.
After a few driving trips, the
light should turn off. If the light
remains on after a few driving trips,
have the vehicle inspected. It is
recommended you visit an INFINITI
retailer for this service.
. For additional information, see “Mal-
function Indicator Light (MIL)” (P.2-
19).SIC4375
ENGINE OIL PRESSURE GAUGE
The gauge indicates the engine lubrication
system oil pressure while the engine is
running. When the engine speed is high, the
engine oil pressure is also high. When it is
low, the gauge indicates the low (L) oil
pressure.
The engine oil pressure is normal when the
gauge needle points within the zone
shown in the illustration.
CAUTION
.This gauge is not designed to indicate
low engine oil level. Use the dipstick
Instruments and controls2-9

2-10Instruments and controls
to check the oil level. (See “Engine oil”
(P.8-6).)
. If the gauge needle does not move
with the proper amount of engine oil,
have the vehicle checked. It is recom-
mended you visit an INFINITI retailer
for this service. Continued vehicle
operation in such a condition could
cause serious damage to the engine.
SIC4376
VOLTMETER
When the ignition switch is pushed to the
ON position, the volt meter indicates the
battery voltage. When the engine is running,
it indicates the generator voltage.
While cranking the engine, the volt drop
below the normal range. If the needle is not
in the normal range (10.5 to 15.5 volt) while
the engine is running, it may indicate that the
charging system is not functioning properly.
Have the system checked. It is recommended
you visit an INFINITI retailer for this service.
METER/RING ILLUMINATION
AND NEEDLE SWEEP
The ring illumination surrounding meters and
gauges illuminates when the driver’s door is
closed after getting into the vehicle with the
Intelligent Key carried in.
When the engine is started, the indicator
needles will sweep in the speedometer and
tachometer and the ring illumination will be
brightened gradually. This function can be
turned off. (See “Trip computer” (P.2-28).)