2021 INFINITI QX50 ABS

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 accel-
erating 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 correctly.
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. This procedure is described in the INFINITI
Service Manual. It is recommended that you
visit an INFINITI retailer for this service.
ANTI-LOCK BRAKING SYSTEM
(ABS)
WARNING
• The ABS is a sophisticated device, but it
cannot prevent accidents resulting from
careless or dangerous driving tech-
niques. It can help maintain vehicle con-
trol during braking on slippery surfaces.
Remember that stopping distances on
slippery surfaces will be longer than on
normal surfaces even with ABS. Stop-
ping distances may also be longer on
rough, gravel or snow covered roads, or
if you are using tire chains. Always main-
tain a safe distance from the vehicle in
front of you. Ultimately, the driver is re-
sponsible for safety.
• Tire type and condition may also affect
braking effectiveness.
– When replacing tires, install the
specified size of tires on all four
wheels.
BRAKE SYSTEM
5-152Starting and driving

–When installing a spare tire, make
sure that it is the proper size and type
as specified on the Tire and Loading
Information label. For additional in-
formation, see “Tire and Loading In-
formation label” (P. 8-28).
– For additional information, see
“Wheels and tires” (P. 8-27).
The ABS controls the brakes so the wheels do
not lock during hard braking or when braking
on slippery surfaces. The system detects the
rotation speed at each wheel and varies the
brake fluid pressure to prevent each wheel
from locking and sliding. By preventing each
wheel from locking, the system helps the
driver maintain steering control and helps to
minimize swerving and spinning on slippery
surfaces.
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, but do not pump the brakes. The
Anti-lock Braking System will operate to pre-
vent the wheels from locking up. Steer the
vehicle to avoid obstacles.
WARNING
Do not pump the brake pedal. Doing so may
result in increased stopping distances.
Self-test feature
The Anti-lock Braking System (ABS) includes
electronic sensors, electric pumps, hydraulic
solenoids and a computer. The computer has
a built-in diagnostic feature that tests the
system each time you start the engine and
move the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may
hear a “clunk” noise and/or feel a pulsation in
the brake pedal. This is normal and does not
indicate a malfunction. If the computer
senses a malfunction, it switches the ABS off
and illuminates the ABS warning light on the
instrument panel. The brake system then op-
erates normally but without anti-lock
assistance.
If the ABS warning light illuminates during
the self-test or while driving, have the vehicle
checked. It is recommended that you visit an
INFINITI retailer for this service.
Normal operation
The Anti-lock Braking System (ABS) operates
at speeds above3-6mph(5-10km/h). The
speed varies according to road conditions.
When the ABS senses that one or more
wheels are close to locking up, the actuator
rapidly applies and releases hydraulic pres-
sure. This action is similar to pumping the
brakes very quickly. You may feel a pulsation
in the brake pedal and hear a noise from
under the hood or feel a vibration from the
actuator when it is operating. This is normal
and indicates that the ABS is operating prop-
erly. However, the pulsation may indicate
that road conditions are hazardous and extra
care is required while driving.
BRAKE ASSIST
When the force applied to the brake pedal
exceeds a certain level, the Brake Assist is
activated generating greater braking force
than a conventional brake booster even with
light pedal force.
Starting and driving5-153

LEATHER CLEANING KIT (if so
equipped)
Spray onto leather cleaning cloth, then gently
wipe the surface of the leather. Use a dry
towel to absorb any excess moisture.
Clean light-colored leather more frequently
because soiling on such surfaces is much
more visible.
Always follow the manufacturer’s instruc-
tions supplied with the leather cleaning kit.
You can obtain the leather cleaning kit from
an INFINITI retailer or other authorized repair
shop.
CAUTION
Do not leave the leather cleaning kit inside
the vehicle. The leather cleaning kit left in a
closed vehicle can become very hot.
AIR FRESHENERS
Most air fresheners use a solvent that could
affect the vehicle interior. If you use an air
freshener, take the following precautions:
• Hanging-type air fresheners can cause per- manent discoloration when they contact
vehicle interior surfaces. Place the air fresh-
ener in a location that allows it to hang free
and not contact an interior surface. • Liquid-type air fresheners typically clip on
the vents. These products can cause imme-
diate damage and discoloration when
spilled on interior surfaces.
Carefully read and follow the manufacturer's
instructions before using the air fresheners.
POWER MOONROOF (if so
equipped)
The sunshade is made from a tricot material.
CAUTION
To help prevent damaging the moonroof
while cleaning:
• Do not rub the material with a cloth. Do-
ing so can damage the surface of the ma-
terial or cause a stain to spread.
• Never use benzine, thinner or any similar
chemical to clean the sunshade. This may
discolor the moonroof and damage the
surface.
• Clean water based stains by patting the
surface with a clean soft cloth dampened
in warm water. Press a clean dry cloth
onto the surface to remove as much
dampness as possible and then let air dry. •
Clean oil based stains by patting the sur-
face with a clean soft cloth dampened in
warm water. Press a clean dry cloth onto
the surface to remove as much dampness
as possible and then let air dry.
Appearance and care7-5

If any electrical equipment does not operate,
check for an open fuse.
Fuses are used in the passenger and engine
compartment. Spare fuses are provided and
can be found in the passenger compartment
fuse box.
When installing a fuse make sure the fuse is
installed in the fuse box securely.ENGINE COMPARTMENT
WARNING
Never use a fuse of higher or lower amper-
age rating than that specified on the fuse
box cover. This could damage the electrical
system or electronic control units or cause
a fire. If any electrical equipment does not come on,
check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open the engine hood.
3. Remove the fuse box cover by pushing the tabs and lifting the cover up.
4. Remove the fuse with the fuse puller. The fuse puller is located in the fuse block in
the passenger compartment.
LDI2997LDI3174
FUSES
8-20Do-it-yourself

• Check your hitch, trailer tire pressure, ve-hicle tire pressure, trailer light operation,
and trailer wheel lug nuts every time you
attach a trailer to the vehicle.
• Be certain your rearview mirrors conform to all federal, state or local regulations. If
not, install any mirrors required for towing
before driving the vehicle.
• Determine the overall height of the vehicle and trailer so the required clearance is
known.
Trailer towing tips
In order to gain skill and an understanding of
the vehicle's behavior, you should practice
turning, stopping and backing up in an area
which is free from traffic. Steering stability
and braking performance will be somewhat
different than under normal driving
conditions.
• Always secure items in the trailer to preventload shift while driving.
• Lock the trailer hitch coupler with a pin or lock to prevent the coupler from inadver-
tently becoming unlatched.
• Avoid abrupt starts, acceleration or stops.
• Avoid sharp turns or lane changes.
• Always drive your vehicle at a moderate speed. • When backing up, hold the bottom of the
steering wheel with one hand. Move your
hand in the direction in which you want the
trailer to go. Make small corrections and
back up slowly. If possible, have someone
guide you when you are backing up.
Always block the wheels on both vehicle and
trailer when parking. Parking on a slope is not
recommended; however, if you must do so:
CAUTION
If you move the shift selector to the P
(Park) position before blocking the wheels
and applying the parking brake, transmis-
sion damage could occur.
1. Apply and hold the brake pedal.
2. Have someone place blocks on the down- hill side of the vehicle and trailer wheels.
3. After the wheel blocks are in place, slowly release the brake pedal until the blocks
absorb the vehicle load.
4. Apply the parking brake.
5. Shift the transmission into P (Park).
6. Turn off the engine. To drive away:
1. Start the vehicle.
2. Apply and hold the brake pedal.
3. Shift the transmission into gear.
4. Release the parking brake.
5. Drive slowly until the vehicle and trailer
are clear from the blocks.
6. Apply and hold the brake pedal.
7. Have someone retrieve and store the blocks.
• While going downhill, the weight of the trailer pushing on the tow vehicle may de-
crease overall stability. Therefore, to main-
tain adequate control, reduce your speed
and shift to a lower gear. Avoid long or
repeated use of the brakes when descend-
ing a hill, as this reduces their effectiveness
and could cause overheating. Shifting to a
lower gear instead provides “engine brak-
ing” and reduces the need to brake as
frequently.
• If the engine coolant temperature rises to a high temperature, see “If your vehicle over-
heats” (P. 6-7).
• Trailer towing requires more fuel than nor- mal circumstances.
Technical and consumer information10-27

11 Index
2
2nd row bench seat adjustment.......1-4
A
Active Engine Brake............5-157Active noise cancellation
Active sound enhancement......5-167Active Ride Control........... .5-158Active Trace Control............5-156Aiming control, headlights.........2-40Air bag (See supplemental restraint
system).................... .1-41Air bag system
Front (See supplemental front impact air
bag system)
............... .1-48Air bag warning labels............1-60Air bag warning light.........1-61, 2-12Air bag warning light,
supplemental............ .1-61, 2-12Air cleaner.................. .8-16Air cleaner housing filter..........8-16Air conditioner
Air conditioner operation........4-35Air conditioner specification label. .10-12Air conditioner system refrigerant and
oil recommendations.......... .10-7Heater and air conditioner
(automatic) (if so equipped).......4-34
Heater and air conditioner controls. .4-35Servicing air conditioner.........4-42Alarm system (See vehicle security
system).................... .2-29Anchor point locations............1-27Antenna................... .4-43Anti-lock brake warning light. . . .2-10, 2-13Anti-lock Braking System (ABS).....5-152Antifreeze..................5-165Armrests.................... .1-5Around View® Monitor...........4-10Autolight switch.............. .2-36Automatic
Automatic power window switch. . .2-64Automatic anti-glare inside mirror.....3-34Automatic brake hold........... .5-25Automatic door locks............ .3-6Automatic Emergency Braking (AEB). . .2-16
B
Battery............... .5-165, 8-12Charge warning light...........2-11Battery replacement............ .8-22INFINITI Intelligent Key.........8-22Key fob.................. .8-22Before starting the engine.........5-16Belt (See drive belt).............8-15Blind Spot Intervention® (BSI).......5-54Blind Spot Warning (BSW).........5-45
Booster seats................ .1-38Brake
Anti-lock Braking System (ABS). . . .5-152Brake fluid................ .8-10Brake light (See stop light)........8-25Brake system...............5-152Brake warning light............2-10Brake wear indicators......2-18, 8-19Self-adjusting brakes...........8-19Brake Assist................ .5-153Brake fluid.................. .8-10Brake system................5-152Brakes.................... .8-19Break-in schedule.............5-144Brightness control
Instrument panel............ .2-41Bulb check/instrument panel........2-10Bulb replacement............. .8-25
C
C.M.V.S.S. certification label.......10-11Camera Aiding Sonar (parking sensor). .4-23Capacities and recommended
fuel/lubricants............... .10-2Car phone or CB radio...........4-43Cargo (See vehicle loading
information)................ .10-15Cargo area storage bin...........2-55Cargo cover................. .2-62