steering INFINITI QX50 2019 Service Manual

CLIMATE SETTING SCREEN
Climate control settings can be changed on
the screen.
Available setting items may vary depending
on models and specifications.
Press the
CLIMATE button on the
lower display menu. The CLIMATE screen
will display on the lower display.
Heating (A/C off)
The air conditioner does not activate in this
mode. When you need to heat only, use this
mode. 1. Press the
CLIMATE button.
2. If the Climate system is off, press the ON-OFF button to turn the system on.
3. If the
A/C indicator is on, touch
the
A/C key to turn the A/C off.
4. Press the
temperature con-
trol buttons on the driver’s side to set the
desired temperature.
∙ When in AUTO mode, the temperature of the passenger compartment will be
maintained automatically. Air flow distri-
bution and fan speed are also controlled
automatically.
∙ Do not set the temperature lower than the outside air temperature or the system
may not work properly.
∙ This procedure is not recommended if windows fog up.
When the outside temperature decreases to
approximately 32°F (0°C), the A/C function
does not activate even if the
A/C indi-
cator light illuminates.
Air conditioning (A/C)
Touch theA/C key to turn the A/C
mode on or off. Turn on the A/C mode for effective cooling and dehumidifying. When
the A/C indicator light is on, the A/C mode is
on.
Sync mode setting
The driver’s, passenger’s and rear (if so
equipped) temperature setpoints can be syn-
chronized using the
SYNC key on the
lower display. When the key is touched, tem-
perature settings become synchronized and
the SYNC indicator turns on.
∙ If the driver’s side temperature buttons are pressed, the driver’s side, passenger’s
side, and rear (if so equipped) tempera-
ture settings will update simultaneously.
∙ If the passenger’s side or rear (if so equipped) temperature buttons are
pressed, Sync mode will exit, the indicator
light will go off, and the temperature will
update based on the button pressed.
Driver’s side temperature will remain the
same until manually changed.
Steering wheel heater (if so
equipped)
Touch theSteering Heater key on the
CLIMATE screen on the lower display to turn
the steering wheel heater on or off. When the
steering wheel heater is on, the indicator light
is on.
LHA4579
4-40Monitor, climate, audio, phone and voice recognition systems

Heater and air conditioner settings can be
changed on the screen.1. Press the
MENU button on the
lower display menu.
2. Using the arrow, tab over to the next screen and touch the Settings key. Touch
the arrow again to get to the next screen
and touch Other.
3. Touch the CLIMATE key.
Available setting items may vary depending
on models and specifications. Available settings
∙ Steering Wheel Heater
Touch to turn the steering wheel heater
on and off.
∙ Auto Steering Wheel Heater
The automatic control mode for the
steering-wheel heating can be turned on
and off. When the item is turned on, the
steering-wheel heating will turn on auto-
matically if the temperature inside the
vehicle compartment is low at the time
when the ignition switch is turned on.
Regardless of the temperature, the
steering-wheel heating will turn off after
30 minutes. If the steering-wheel heater
is turned on or off manually by
touchingon the CLIMATE screen,
the automatic steering-wheel heating
control mode will be canceled and will
return to the manual mode.
∙ If the surface temperature of the steering-wheel is above the tempera-
ture within which the system is de-
signed to operate, the system will not
heat the steering-wheel. This is not a
malfunction. The air conditioner system in your INFINITI
vehicle is charged with a refrigerant designed
with the environment in mind.
This refrigerant does not harm the earth’s
ozone layer.
Special charging equipment and lubricant is
required when servicing your INFINITI air
conditioner. Using improper refrigerants or
lubricants will cause severe damage to your
air conditioner system. For additional infor-
mation, refer to “Air conditioner system re-
frigerant and oil recommendations” in the
“Technical and consumer information” sec-
tion of this manual.
It is recommended that you visit an INFINITI
retailer for servicing your “environmentally
friendly” air conditioning system.WARNING
The air conditioner system contains refrig-
erant under high pressure. To avoid per-
sonal injury, any air conditioner service
should be done only by an experienced
technician with proper equipment.
LHA4583
HEATER AND AIR CONDITIONER
SETTINGS
SERVICING AIR CONDITIONER
Monitor, climate, audio, phone and voice recognition systems4-43

Vehicle-to-vehicle distance control mode
switches.................................... 5-89
Vehicle-to-vehicle distance control mode
limitations .................................. 5-96
System temporarily unavailable .............5-100
System maintenance ....................... 5-102
Conventional (fixed speed) cruise control
mode ...................................... 5-103
ProPILOT Assist (if so equipped) ...............5-108
ProPILOT Assist system operation ..........5-109
Turning the conventional (fixed speed)
cruise control mode on .....................5-112
Operating ProPILOT Assist .................5-113
How to enable/disable the Steering
Assist ...................................... 5-117
Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist) .........5-118
Steering Assist ............................. 5-128
Conventional (fixed speed) cruise control
mode ...................................... 5-135
Distance Control Assist (DCA) (if so equipped) . . 5-138 DCA system operation .....................5-140
How to enable/disable the DCA system .....5-143
DCA system limitations .....................5-145DCA driving situations
...................... 5-146
System temporarily unavailable .............5-147
System maintenance ....................... 5-148
Forward Emergency Braking (FEB) with
Pedestrian Detection system ..................5-149
System operation .......................... 5-151
Turning the FEB with Pedestrian
Detection system on/off ...................5-152
FEB with Pedestrian Detection system
limitations ................................. 5-153
System temporarily unavailable .............5-156
System malfunction ........................ 5-157
System maintenance ....................... 5-158
Predictive Forward Collision Warning (PFCW) . . 5-159 PFCW system operation ...................5-161
Turning the PFCW system on/off ..........5-162
PFCW system limitations ...................5-164
System temporarily unavailable .............5-168
System

malfunction ........................ 5-169
System maintenance ....................... 5-169
Break-in schedule ............................. 5-170
Fuel efficient driving tips .......................5-171
Increasing fuel economy .......................5-172

Intelligent All-Wheel Drive (AWD)
(if so equipped)................................ 5-172
Parking/parking on hills .......................5-175
Power steering ................................ 5-176
Electric power steering type ................5-176
Direct Adaptive Steering® type .............5-176
Park with Easy Steering (if so equipped) .....5-178
Brake system ................................. 5-179
Brake precautions .......................... 5-179
Anti-lock Braking System (ABS) .............5-180
Brake Assist ............................... 5-181
Vehicle Dynamic Control (VDC) system .........5-181
Brake force distribution .....................5-183
Chassis Control ............................... 5-184
Active Trace Control ....................... 5-184
Active Engine Brake ........................ 5-184
Active Ride Control ......................... 5-185
Hill start assist system ......................... 5-186
Front and rear sonar system (if so equipped) ....5-186 System operation
.......................... 5-187
How to enable/disable the sonar system ....5-189
Sonar limitations ........................... 5-189
System temporarily unavailable .............5-190
System maintenance ....................... 5-190
Cold weather driving .......................... 5-191
Freeing a frozen door lock ..................5-191
Antifreeze ................................. 5-191
Battery .................................... 5-191
Draining of coolant water ..................5-191
Tire equipment ............................. 5-191
Special winter equipment ...................5-192
Driving on snow or ice ...................... 5-192
Engine block heater (if so equipped) .........5-192
Active noise cancellation/Active sound
enhancement ................................. 5-193
Active noise cancellation ....................5-193
Active
sound enhancement .................5-194

∙ If the low tire pressure warning light illu-minates while driving, avoid sudden
steering maneuvers or abrupt braking,
reduce vehicle speed, pull off the road to
a safe location and stop the vehicle as
soon as possible. Driving with under-
inflated tires may permanently damage
the tires and increase the likelihood of
tire failure. Serious vehicle damage could
occur and may lead to an accident and
could result in serious personal injury.
Check the tire pressure for all four tires.
Adjust the tire pressure to the recom-
mended COLD tire pressure shown on
the Tire and Loading Information label to
turn the low tire pressure warning light
off. If you have a flat tire, replace it with a
replacement tire as soon as possible. (For
additional information, refer to “Flat
tire” in the “In case of emergency” section
for changing a flat tire.) ∙ When replacing a wheel without the
TPMS such as the spare tire, when a
spare tire is mounted or a wheel is re-
placed, tire pressure will not be indicated,
the TPMS will not function and the low
tire pressure warning light will flash for
approximately 1 minute. The light will re-
main on after 1 minute. Have your tires
replaced and/or TPMS system reset as
soon as possible. It is recommended that
you visit an INFINITI retailer for this
service.
∙ Replacing tires with those not originally specified by INFINITI could affect the
proper operation of the TPMS.
∙ Do not inject any tire liquid or aerosol tire sealant into the tires, as this may cause a
malfunction of the tire pressure sensors.
CAUTION
∙ The TPMS may not function properlywhen the wheels are equipped with tire
chains or the wheels are buried in snow.
∙ Do not place metalized film or any metal parts (antenna, etc.) on the windows.
This may cause poor reception of the sig-
nals from the tire pressure sensors, and
the TPMS will not function properly. Some devices and transmitters may tempo-
rarily interfere with the operation of the
TPMS and cause the low tire pressure warn-
ing light to illuminate.
Some examples are:
∙ Facilities or electric devices using similar radio frequencies are near the vehicle.
∙ If a transmitter set to similar frequencies is being used in or near the vehicle.
∙ If a computer (or similar equipment) or a DC/AC converter is being used in or near
the vehicle.
The low tire pressure warning light may illu-
minate in the following cases: ∙ If the vehicle is equipped with a wheel and tire without TPMS.
∙ If the TPMS has been replaced and the ID has not been registered.
∙ If the wheel is not originally specified by INFINITI.
Starting and driving5-7

ON-PAVEMENT AND OFF-ROAD
DRIVING PRECAUTIONS
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
They have higher ground clearance than pas-
senger cars to make them capable of per-
forming in a variety of on-pavement and off-
road applications. This gives them a higher
center of gravity than ordinary vehicles. An
advantage of higher ground clearance is a
better view of the road, allowing you to an-
ticipate problems. However, they are not de-
signed for cornering at the same speeds as
conventional 2-wheel drive vehicles any more
than low-slung sports cars are designed to
perform satisfactorily under off-road condi-
tions. If at all possible, avoid sharp turns at
high speeds. As with other vehicles of this
type, failure to operate this vehicle correctly
may result in loss of control or vehicle roll-
over. In a rollover crash, an unbelted person is
significantly more likely to die than a person
wearing a seat belt.
For additional information, refer to “Driving
safety precautions” in this section.
AVOIDING COLLISION AND
ROLLOVER
WARNING
Failure to operate this vehicle in a safe and
prudent manner may result in loss of con-
trol or an accident.
Be alert and drive defensively at all times.
Obey all traffic regulations. Avoid excessive
speed, high speed cornering, or sudden steer-
ing maneuvers, because these driving prac-
tices could cause you to lose control of your
vehicle.
As with any vehicle, loss of control could re-
sult in a collision with other vehicles or ob-
jects or cause the vehicle to roll over, par-
ticularly if the loss of control causes the
vehicle to slide sideways.
Be attentive at all times, and avoid driving
when tired. Never drive when under the influ-
ence of alcohol or drugs (including prescrip-
tion or over-the-counter drugs which may
cause drowsiness). Always wear your seat
belt as outlined in the “Safety – Seats, seat
belts and supplemental restraint system” sec-
tion of this manual, and also instruct your
passengers to do so. Seat belts help reduce the risk of injury in
collisions and rollovers.
In a rollover crash, an
unbelted or improperly belted person is sig-
nificantly more likely to be injured or killed
than a person properly wearing a seat belt.OFF-ROAD RECOVERY
While driving, the right side or left side wheels
may unintentionally leave the road surface. If
this occurs, maintain control of the vehicle by
following the procedure below. Please note
that this procedure is only a general guide.
The vehicle must be driven as appropriate
based on the conditions of the vehicle, road
and traffic.
1. Remain calm and do not overreact.
2. Do not apply the brakes.
3. Maintain a firm grip on the steering wheel with both hands and try to hold a
straight course.
4. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
5. If there is nothing in the way, steer the vehicle to follow the road while vehicle
speed is reduced. Do not attempt to
drive the vehicle back onto the road sur-
face until vehicle speed is reduced.
Starting and driving5-9

6. When it is safe to do so, gradually turnthe steering wheel until both tires return
to the road surface. When all tires are on
the road surface, steer the vehicle to stay
in the appropriate driving lane.
∙ If you decide that it is not safe to return the vehicle to the road surface based
on vehicle, road or traffic conditions,
gradually slow the vehicle to a stop in a
safe place off the road.
RAPID AIR PRESSURE LOSS
Rapid air pressure loss or a “blow-out” can
occur if the tire is punctured or is damaged
due to hitting a curb or pothole. Rapid air
pressure loss can also be caused by driving on
under-inflated tires.
Rapid air pressure loss can affect the han-
dling and stability of the vehicle, especially at
highway speeds.
Help prevent rapid air pressure loss by main-
taining the correct air pressure and visually
inspecting the tires for wear and damage. For
additional information, refer to “Wheels and
tires” in the “Do-it-yourself” section of this
manual. If a tire rapidly loses air pressure or
“blows-out” while driving, maintain control of
the vehicle by following the procedure below.
Please note that this procedure is only a gen- eral guide. The vehicle must be driven as ap-
propriate based on the conditions of the ve-
hicle, road and traffic.
WARNING
The following actions can increase the
chance of losing control of the vehicle if
there is a sudden loss of tire air pressure.
Losing control of the vehicle may cause a
collision and result in personal injury.
∙ The vehicle generally moves or pulls in the
direction of the flat tire.
∙ Do not rapidly apply the brakes.
∙ Do not rapidly release the accelerator pedal.
∙ Do not rapidly turn the steering wheel.
1. Remain calm and do not overreact.
2. Maintain a firm grip on the steering wheel with both hands and try to hold a
straight course.
3. When appropriate, slowly release the accelerator pedal to gradually slow the
vehicle.
4. Gradually steer the vehicle to a safe lo- cation off the road and away from traf-
fic if possible. 5. Lightly apply the brake pedal to gradu-
ally stop the vehicle.
6. Turn on the hazard warning flashers and contact a roadside emergency service to
change the tire. For additional informa-
tion, refer to “Flat tire” in the “In case of
emergency section of this manual.
DRINKING ALCOHOL/DRUGS
AND DRIVING
WARNING
Never drive under the influence of alcohol
or drugs. Alcohol in the bloodstream re-
duces coordination, delays reaction time
and impairs judgement. Driving after drink-
ing alcohol increases the likelihood of being
involved in an accident injuring yourself and
others. Additionally, if you are injured in an
accident, alcohol can increase the severity
of the injury.
5-10Starting and driving

∙ Do not grip the inside or spokes of thesteering wheel when driving off-road.
The steering wheel could move suddenly
and injure your hands. Instead drive with
your fingers and thumbs on the outside of
the rim.
∙ Before operating the vehicle, ensure that the driver and all passengers have their
seat belts fastened.
∙ Always drive with the floor mats in place as the floor may become hot.
∙ Lower your speed when encountering strong crosswinds. With a higher center
of gravity, your INFINITI is more affected
by strong side winds. Slower speeds en-
sure better vehicle control.
∙ Do not drive beyond the performance ca- pability of the tires, even with AWD
engaged.
∙ For AWD equipped vehicles, do not at- tempt to raise two wheels off the ground
and shift the transmission to any drive or
reverse position with the engine running.
Doing so may result in drivetrain damage
or unexpected vehicle movement which
could result in serious vehicle damage or
personal injury. ∙ Do not attempt to test an AWD equipped
vehicle on a 2-wheel dynamometer (such
as the dynamometers used by some
states for emissions testing) or similar
equipment even if the other two wheels
are raised off the ground. Make sure you
inform test facility personnel that your
vehicle is equipped with AWD before it is
placed on a dynamometer. Using the
wrong test equipment may result in
drivetrain damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
∙ When a wheel is off the ground due to an unlevel surface, do not spin the wheel
excessively.
∙ Accelerating quickly, sharp steering ma- neuvers or sudden braking may cause loss
of control.
∙ If at all possible, avoid sharp turning ma- neuvers, particularly at high speeds. Your
INFINITI vehicle has a higher center of
gravity than a passenger car. The vehicle
is not designed for cornering at the same
speeds as passenger cars. Failure to op-
erate this vehicle correctly could result in
loss of control and/or a rollover accident. ∙ Always use tires of the same type, size,
brand, construction (bias, bias-belted, or
radial), and tread pattern on all four
wheels. Install tire chains on the front
wheels when driving on slippery roads
and drive carefully.
∙ Be sure to check the brakes immediately after driving in mud or water. For addi-
tional information, refer to “Brake pre-
cautions” in this section.
∙ Avoid parking your vehicle on steep hills. If you get out of the vehicle and it rolls
forward, backward or sideways, you
could be injured.
∙ Whenever you drive off-road through sand, mud or water as deep as the wheel
hub, more frequent maintenance may be
required. For additional information, re-
fer to “Maintenance under severe oper-
ating conditions” in the “Maintenance
and schedules” section of this manual.
5-12Starting and driving

Manual shift mode
The transmission enters the manual shift
mode by moving the shift lever again to the D
(Drive) position when the vehicle is in the D
range.
You can select the manual shift range by
pulling the right side or left side paddle shifter
AandB. To cancel the manual shift mode,
move the shift lever to the D (Drive) position
again. The transmission returns to the auto-
matic drive mode.
When the shift lever is shifted from D (Drive)
to the manual shift mode with the vehicle stopped or while driving, the transmission
enters the manual shift mode. Shift ranges
can be selected manually. Shift ranges can
also be selected using the paddle shifters on
the steering wheel. When you pull the paddle
shifter while in the D (Drive) position, the
transmission will shift to the upper or lower
range temporarily. If the paddle shifters are
not used for about 5–10 seconds, the trans-
mission will automatically return to the D
(Drive) position. If you want to return to the D
(Drive) position manually, pull and hold either
paddle shifter for about 1.5 seconds.In the manual shift mode, the shift range is
displayed on the position indicator in the me-
ter. When moving the shift lever to the
manual shift mode, the position indicator dis-
plays 1 (1st) up to 8 (8th) depending on ve-
hicle speed.
Shift ranges up or down one by one as fol-
lows:
1⇔
2⇔ 3⇔ 4⇔ 5⇔ 6⇔ 7⇔ 8
8 (8th)
Use this position for all normal forward driv-
ing at highway speeds.
7 (7th), 6 (6th) and 5 (5th)
Use this position when driving up long slopes,
or for engine braking when driving down long
slopes.
4 (4th), 3 (3rd) and 2 (2nd)
Use these positions for hill climbing or engine
braking on downhill grades.
1 (1st)
Use this position when climbing steep hills
slowly or when driving slowly, or for maxi-
mum engine braking on steep downhill
grades.
Manual shift gate
LSD2822
Paddle shifters
LSD2914
5-22Starting and driving

–The braking force is applied by the
automatic brake hold function for
3 minutes or longer
– The driver’s seat belt is unfastened
– The ignition switch is placed in the
OFF position
– If a malfunction occurs in the auto-
matic brake hold function
∙ When the vehicle stops, but the brake
force is not automatically applied, de-
press the brake pedal firmly until the au-
tomatic brake hold indicator light
(green) illuminates.
Automatic brake hold function
display
The automatic brake hold function status can
be checked in the “Chassis Control” mode in
the vehicle information display. For additional
information, refer to “Vehicle information
display” in the “Instruments and controls” sec-
tion of this manual. Four driving modes can be selected by using
the Drive Mode Selector switch: STAN-
DARD, SPORT, ECO and PERSONAL.
NOTE:
∙ When the Drive Mode Selector switch
selects a mode, the mode may not switch
quickly. This is not a malfunction.
∙ Select the STANDARD mode center for
normal driving.
STANDARD MODE
STANDARD mode is recommended for nor-
mal driving. Push the Drive Mode Selector
switch until “STANDARD” appears in the ve-
hicle information display. STANDARD mode
will also be displayed in the upper display.
SPORT MODE
The SPORT mode adjusts the engine and
transmission to enhance performance. Push
the Drive Mode Selector switch to the
SPORT position. “SPORT” appears in the ve-
hicle information display. SPORT mode will
also be displayed in the upper display.
NOTE:
In the SPORT mode, fuel economy may be
reduced.
PERSONAL MODE
PERSONAL mode is used for adjusting the
steering mode and drive modes. Turn the
PERSONAL mode off for normal driving.
Push the Drive Mode Selector switch until
“PERSONAL” appears in the vehicle informa-
tion display. PERSONAL mode will also be
displayed in the upper display. For additional
information, refer to the INFINITI InTouch™
Owner’s Manual.
Drive Mode Selector switch
LSD2917
INFINITI DRIVE MODE SELECTOR
Starting and driving5-29