2021 INFINITI Q50 air suspension

1-56Safety — Seats, seat belts and supplemental restraint system
ger seat, the vehicle should be checked
as soon as possible. It is recommended
you visit an INFINITI retailer for this
service.
Other supplemental front-impact
air bag precautions
WARNING
.Do not place any objects on the
steering wheel pad or on the instru-
ment panel. Also, do not place any
objects between any occupant and
the steering wheel or instrument
panel. Such objects may become
dangerous projectiles and cause in-
jury if the front air bags inflate.
. Do not place objects with sharp edges
on the seat. Also, do not place heavy
objects on the seat that will leave
permanent impressions in the seat.
Such objects can damage the seat or
occupant classification sensors
(weight sensors). This can affect the
operation of the air bag system and
result in serious personal injury.
. Do not use water or acidic cleaners
(hot steam cleaners) on the seat. This
can damage the seat or occupant
classification sensors. This can also affect the operation of the air bag
system and result in serious personal
injury.
. Immediately after inflation, several
front air bag system components will
be hot. Do not touch them; you may
severely burn yourself.
. No unauthorized changes should be
made to any components or wiring of
the air bag system. This is to prevent
accidental inflation of the supple-
mental air bag or damage to the
supplemental air bag system.
. Do not make unauthorized changes
to your vehicle’s electrical system,
suspension system or front end struc-
ture. This could affect proper opera-
tion of the front air bag system.
. Tampering with the air bag system
may result in serious personal injury.
Tampering includes changes to the
steering wheel and the instrument
panel assembly by placing material
over the steering wheel pad and
above the instrument panel or by
installing additional trim material
around the air bag system.
. Removing or modifying the front
passenger seat may affect the func-
tion of the air bag system and result
in serious personal injury. .
Modifying or tampering with the
front passenger seat may result in
serious personal injury. For example,
do not change the front seats by
placing material on the seat cushion
or by installing additional trim mate-
rial, such as seat covers, on the seat
that is not specifically designed to
assure proper air bag operation.
Additionally, do not stow any objects
under the front passenger seat or the
seat cushion and seatback. Such
objects may interfere with the proper
operation of the occupant classifica-
tion sensors.
. No unauthorized changes should be
made to any components or wiring of
the seat belt system. This may affect
the front air bag system. Tampering
with the seat belt system may result
in serious personal injury.
. It is recommended you visit an
INFINITI retailer for work on and
around the front air bag. It is also
recommended you visit an INFINITI
retailer for installation of electrical
equipment. The Supplemental Re-
straint System (SRS) wiring har-
nesses* should not be modified or
disconnected. Unauthorized electrical
test equipment and probing devices
should not be used on the air bag

1-58Safety — Seats, seat belts and supplemental restraint system
other injuries. Side air bags and curtain air
bags do not provide restraint to the lower
body.
The seat belts should be correctly worn and
the driver and passenger seated upright as
far as practical away from the side air bag.
Rear seat passengers should be seated as far
away as practical from the door finishers
and side roof rails. The side air bags and
curtain air bags inflate quickly in order to
help protect the occupants. Because of this,
the force of the side air bags and curtain air
bags inflating can increase the risk of injury if
the occupant is too close to, or is against,
these air bag modules during inflation. The
side air bag will deflate quickly after the
collision is over.
The curtain air bag will remain inflated for a
short time.
The side air bags and curtain air bags
operate only when the ignition switch is in
the ON position.
After pushing the ignition switch to the ON
position, the supplemental air bag warning
light illuminates. The air bag warning light
will turn off after about 7 seconds if the
systems are operational.
WARNING
.Do not place any objects near the
seatback of the front seats. Also, do
not place any objects (an umbrella,
bag, etc.) between the front door
finisher and the front seat. Such
objects may become dangerous pro-
jectiles and cause injury if side air bag
inflates.
. Right after inflation, several side air
bags and curtain air bag system
components will be hot. Do not touch
them; you may severely burn your-
self.
. No unauthorized changes should be
made to any components or wiring of
side air bag and curtain air bags. This
is to prevent damage to or accidental
inflation of the side air bag and
curtain air bag systems.
. Do not make unauthorized changes
to your vehicle’s electrical system,
suspension system or side panel. This
could affect proper operation of the
side air bag and curtain air bag
systems.
. Tampering with the air bag system
may result in serious personal injury.
For example, do not change the front seats by placing material near the
seatback or by installing additional
trim material, such as seat covers,
around the side air bags.
. 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.

LOG-IN FUNCTION
After setting up the user information, the
system will automatically recognize the user
upon turning on the vehicle.
There will be a personalized welcome greet-
ing and screen prompt to log-in.
This feature allows 4 drivers to use their
own registration, drive mode, driving posi-
tion, air conditioner, and auto settings and
memorizes these custom settings.
The log-in user can be changed on the
welcome greeting screen or the User Profiles
screen. For more details, see the INFINITI
InTouch
TMOwner’s Manual.
The log-in function is linked to the following
items:
. Meter
. Audio
. Navigation system display (if so
equipped)
. Navigation settings (if so equipped)
. Air conditioner
. Memory seat (if so equipped)
. Engine/Transmission
. Steering
. Suspension (if so equipped)
. Active trace control system .
Driver assistance* (if so equipped)
. Vehicle settings
*: except for the Forward Emergency Brak-
ing (FEB) system
WARNING
The Intelligent Key transmits radio
waves when the buttons are pushed.
The FAA advises that the radio waves
may affect aircraft navigation and com-
munication systems. Do not operate the
Intelligent Key while on an airplane.
Make sure the buttons are not operated
unintentionally when the unit is stored
during a flight.
It is possible to lock/unlock all doors and
fuel-filler door, open the trunk lid, activate
the panic alarm and open the windows by
pushing the buttons on the Intelligent Key
from outside the vehicle.
Before locking the doors, make sure the
Intelligent Key is not left in the vehicle.
The remote keyless entry function can
operate at a distance of approximately 33
ft (10 m) from the vehicle. (The effective
distance depends upon the conditions
around the vehicle.)
As many as 4 Intelligent Keys can be used
with one vehicle. For information concerning
the purchase and use of additional Intelli-
gent Keys, contact an INFINITI retailer.
The buttons on the Intelligent Key will not
Pre-driving checks and adjustments3-15
REMOTE KEYLESS ENTRY SYSTEM

JVS0246X
HOW TO ENABLE/DISABLE THE
LDP SYSTEM (if so equipped)
Perform the following steps to enable or
disable the LDP system.
1. Push the MENU button
and touch
[Driver Assistance] on the lower display.
2. Touch [Lane Assist].
3. Touch [Lane Departure Prevention] to enable or disable the system.
The displayed keys on the lower display may
vary depending on models, specifications
and software versions.
LDW/LDP SYSTEM LIMITATIONS
WARNING
Listed below are the system limitations
for the LDW and LDP systems. Failure to
operate the vehicle in accordance with
these system limitations could result in
serious injury or death.
. The system will not operate at speeds
below 45 MPH (70 km/h) or if it
cannot detect lane markers.
. The LDP system is primarily intended
for use on well-developed freeways
or highways. It may not detect the
lane markers in certain roads, weath-
er or driving conditions.
. Do not use the LDP system under the
following conditions as it may not
function properly:
— During bad weather (rain, fog, snow, etc.).
— When driving on slippery roads, such as on ice or snow, etc.
— When driving on winding or un- even roads.
— When there is a lane closure due to road repairs. — When driving in a makeshift or
temporary lane.
— When driving on roads where the lane width is too narrow.
— When driving without normal tire conditions (for example, tire wear,
low tire pressure, installation of
spare tire, tire chains, non-stan-
dard wheels).
— When the vehicle is equipped with non-original steering parts, brake
parts or suspension parts.
. The camera may not detect lane
markers in the following situations
and the LDW and LDP systems may
not operate properly.
— On roads where there are multi- ple parallel lane markers; lane
markers that are faded or not
painted clearly; yellow painted
lane markers; non-standard lane
markers; or lane markers covered
with water, dirt, snow, etc.
— On roads where discontinued lane markers are still detectable.
— On roads where there are sharp curves.
— On roads where there are sharply contrasting objects, such as sha-
Starting and driving5-37

.Increase your following distance to allow
for increased stopping distances.
. Avoid sudden maneuvers, hard cornering
and hard braking.
WARNING
. Although you can continue driving
with a punctured run-flat tire, re-
member that vehicle handling stabi-
lity is reduced, which could lead to an
accident and personal injury. Also,
driving a long distance at high speeds
may damage the tire.
. Do not drive at speeds above 50
MPH (80 km/h) and do not drive
more than approximately 93 miles
(150 km) with a punctured run-flat
tire. The actual distance the vehicle
can be driven on a flat tire depends on
outside temperature, vehicle load,
road conditions and other factors.
. Drive safely at reduced speeds. Avoid
hard cornering or braking, which may
cause you to lose control of the
vehicle.
. If you detect any unusual sounds or
vibrations while driving with a punc-
tured run-flat tire, pull off the road
to a safe location and stop the vehicle as soon as possible. The tire may be
seriously damaged and need to be
replaced.
CAUTION
.
Never install tire chains on a punctu-
red run-flat tire, as this could damage
your vehicle.
. Avoid driving over any projection or
pothole, as the clearance between
the vehicle and the ground is smaller
than normal.
. Do not enter an automated car wash
with a punctured run-flat tire.
. It is recommended you have the
punctured tire inspected by an
INFINITI retailer or other authorized
repair shop. Replace the tire as soon
as possible if the tire is seriously
damaged.
TIRE CHAINS
CAUTION
Tire chains/cables should not be in-
stalled on 265/35RF19 tires. Doing so
will cause damage to the vehicle. If you
plan to use tire chains/cables, you
should install 245/40RF19 tires on your
vehicle.
Use of tire chains may be prohibited accord-
ing to location. Check the local laws before
installing tire chains. When installing tire
chains, make sure they are the proper size
for the tires on your vehicle and are installed
according to the chain manufacturer’s sug-
gestions. Use only SAE Class S chains. Class
“S” chains are used on vehicles with re-
stricted tire to vehicle clearance. Vehicles
that can use Class “S” chains are designed to
meet the SAE standard minimum clearances
between the tire and the closest vehicle
suspension or body component required to
accommodate the use of a winter traction
device (tire chains or cables). The minimum
clearances are determined using the factory
equipped tire size. Other types may damage
your vehicle. Use chain tensioners when
recommended by the tire chain manufac-
turer to ensure a tight fit. Loose end links of
Do-it-yourself8-33

9-10Maintenance and schedules
25,000 Miles/30 Months/40,000
Km
Standard maintenance:.Perform tire rotation (1)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
30,000 Miles/36 Months/48,000
Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect stop lamp switch and brake pedal
position switch (1)
.Inspect transfer fluid.Inspect differential gear oil.Replace air cleaner filter (2).Replace engine oil and filter (3).Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (4) Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid
(1) Inspect the clearance between the brake pedal
and the switches.
(2) If operating mainly in dusty conditions, more
frequent maintenance may be required.
(3) If the oil replacement indicator is displayed,
change the engine oil and filter as soon as
possible. After replacing the engine oil, reset the
display.
(4) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.

60,000 Miles/72 Months/96,000
Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect drive belts (1).Inspect EVAP vapor lines and fuel lines.Inspect exhaust system.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect stop lamp switch and brake pedal
position switch (2)
.Inspect transfer fluid.Inspect differential gear oil.Replace air cleaner filter (3).Replace brake fluid.Replace engine oil and filter (4).Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (5)Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid.Replace transfer fluid.Replace differential gear oil
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) If operating mainly in dusty conditions, more
frequent maintenance may be required.
(4) If the oil replacement indicator is displayed,
change the engine oil and filter within two weeks
or less than 500 miles (800 km).
(5) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
65,000 Miles/78 Months/104,000
Km
Standard maintenance:.Perform tire rotation (1)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
Maintenance and schedules9-13

Severe maintenance:.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Replace brake fluid.Replace transfer fluid.Replace differential gear oil
(1) Replace the drive belts if found damaged.
(2) Inspect the clearance between the brake pedal
and the switches.
(3) If the oil replacement indicator is displayed,
change the engine oil and filter as soon as
possible. After replacing the engine oil, reset the
display.
(4) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
85,000 Miles/102 Months/
136,000 Km
Standard maintenance:.Perform tire rotation (1)
Severe maintenance:
.Inspect brake pads and rotors.Inspect exhaust system.Inspect steering gear and linkage.Inspect axle and suspension parts.Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models)
(1) If your vehicle is equipped with different sized
tires in the front and rear, tires cannot be rotated.
90,000 Miles/108 Months/
144,000 Km
Standard maintenance:.Inspect brake lines and cables.Inspect brake pads and rotors.Inspect drive belts (1).Inspect propeller shaft (AWD models).Inspect drive shaft boots (AWD models).Inspect stop lamp switch and brake pedal
position switch (2)
.Inspect transfer fluid.Inspect differential gear oil.Replace air cleaner filter (3).Replace engine oil and filter (4).Replace In-cabin microfilter.Replace Intelligent Key battery.Perform tire rotation (5)
Maintenance and schedules9-15