Shift INFINITI QX50 2021 Repair Manual

When the SET- switch is pushed under the
following conditions, the ProPILOT Assist
system cannot be set and the set vehicle
speed indicator
O1blinks for approximately 2
seconds:
• When traveling below 20 mph (30 km/h) and the vehicle ahead is not detected
• When the shift lever is not in the D (Drive) position or manual shift mode
• When the electronic parking brake is applied
• When the brakes are operated by the driver • When the VDC system is off. For additional
information, see “Vehicle Dynamic Control
(VDC) system” (P. 5-154).
• When the VDC system (including the trac- tion control system) is operating
• When a wheel is slipping
• When any door is open
• When the driver’s seat belt is not fastened
How to change the set vehicle
speed
The set vehicle speed can be adjusted.
To change to a faster cruising speed:
• Push and hold the RES+ switch. The set vehicle speed increases by approximately
5 mph (5 km/h).
• Push, then quickly release, the RES+ switch. Each time you do this, the set speed in-
creases by approximately 1 mph (1 km/h).
LSD3617LSD2948
Starting and driving5-83

NOTE:
• When the Cruise screen is displayed on thevehicle information display, press the OK
button on the steering wheel to call up the
“Driving Aids” setting display in the upper
display.
• When enabling/disabling the system through the lower display, the system re-
tains the current settings even if the en-
gine is restarted.
How to cancel the ProPILOT Assist
system
To cancel the ProPILOT Assist system, use
one of the following methods:
• Push the CANCEL switch.
• Tap the brake pedal (except at a standstill).
• Push the ProPILOT Assist switch to turnthe system off. The ProPILOT Assist status
indicator will go out.
When the ProPILOT Assist system is can-
celed while the vehicle is stopped, the elec-
tronic parking brake is automatically
activated.
WARNING
To prevent the vehicle from moving or roll-
ing unexpectedly, which could result in se-
rious personal injury or property damage,
before exiting the vehicle make sure to
push the ProPILOT Assist switch to turn
the system off, place the shift lever in the P
(Park) position, and turn the engine off.
INTELLIGENT CRUISE CONTROL
(ICC) (for vehicles with ProPILOT
Assist)
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the ICC system
could result in serious injury or death.
• The ICC system is only an aid to assist the
driver and is not a collision warning or
avoidance device. It is recommended for
highway use only and it is not intended
for city driving. It is the driver’s respon-
sibility to stay alert, drive safely, and be
in control of the vehicle at all times. •
There are limitations to the ICC system
capability. The ICC system does not
function in all driving, traffic, weather,
and road conditions. It is the driver’s re-
sponsibility to stay alert, drive safely,
keep the vehicle in the traveling lane, and
be in control of the vehicle at all times.
• Always observe posted speed limits and
do not set the speed over them.
• The ICC system does not react to sta-
tionary and slow moving vehicles.
• Always drive carefully and attentively
when using the ICC system. Read and
understand the Owner’s Manual thor-
oughly before using the ICC system. To
avoid serious injury or death, do not rely
on the system to prevent accidents or to
control the vehicle’s speed in emergency
situations. Do not use the ICC system
except in appropriate road and traffic
conditions.
ICC system operation
The ICC system is designed to maintain a
selected distance from the vehicle in front of
you and can reduce the speed to match a
slower vehicle ahead. The system decelerates
the vehicle as necessary and if the vehicle
Starting and driving5-87

When driving on some roads, such as wind-
ing, hilly, curved, narrow roads, or roads
which are under construction, the radar sen-
sor may detect vehicles in a different lane, or
may temporarily not detect a vehicle traveling
ahead. This may cause the radar system to
decelerate or accelerate the vehicle.
The detection of vehicles may also be af-
fected by vehicle operation (steering maneu-
ver or traveling position in the lane, etc.) or
vehicle condition.If this occurs, the ICC system may warn you
by blinking the system indicator and sounding
the chime unexpectedly. You will have to
manually control the proper distance away
from the vehicle traveling ahead.
Automatic cancellation
The following are conditions in which the ICC
system may be temporarily unavailable. In
these instances, the ICC system may not can-
cel and may not be able to maintain the se-
lected following distance from the vehicle
ahead.Condition A
Under the following conditions, the ICC sys-
tem is automatically canceled. A chime will
sound and the system will not be able to be
set:
• Any door is open.
• The driver’s seat belt is not fastened.
• The vehicle ahead is not detected and your
vehicle is traveling below the speed of 15
mph (25 km/h).
• Your vehicle has been stopped by the ICC system for approximately 3 minutes or
longer.
• The shift lever is not in the D (Drive) position or manual shift mode.
• The electronic parking brake is applied.
• The VDC system is turned off.
• The Forward Emergency Braking with Pe- destrian Detection applies harder braking.
• VDC (including the traction control system) operates.
• A wheel slips.
• When distance measurement becomes im- paired due to adhesion of dirt or obstruc-
tion to the sensor.
• When the radar signal is temporarily interrupted.
SSD0253
Starting and driving5-95

Action to take:
When the conditions listed above are no lon-
ger present, turn the system off using the
ProPILOT Assist switch. Turn the ProPILOT
Assist system back on to use the system.
NOTE:
When the ICC system is canceled under
the following conditions at a standstill,
the electronic parking brake is automati-
cally activated:
• Any door is open.
• The driver’s seat belt is not fastened.
• Your vehicle has been stopped by the ICCsystem for approximately 3 minutes or
longer.
• The shift lever is not in the D (Drive) posi- tion or manual shift mode.
• The VDC system is turned off.
• When distance measurement becomes im- paired due to adhesion of dirt or obstruc-
tion to the sensor.
• When the radar signal is temporarily interrupted.
Condition B
When the radar sensor of the front bumper is
covered with dirt or is obstructed, the ICC
system will automatically be canceled. The chime will sound and the “Unavailable:
Front Radar Blocked” warning message will
appear in the vehicle information display.
Action to take:
If the warning message appears, stop the
vehicle in a safe place, press the Park button
to place the vehicle in the P (Park) position,
and turn the engine off. When the radar sig-
nal is temporarily interrupted, clean the sen-
sor area of the front bumper and restart the
engine. If the “Unavailable: Front Radar
Blocked” warning message continues to be
displayed, have the system checked. It is rec-
ommended that you visit an INFINITI retailer
for this service.
Condition C
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next to
long walls), the system may illuminate the
system warning light and display the “Un-
available: Front Radar Blocked” message.
Action to take:
When the above driving conditions no longer
exist, turn the system back on.
ICC system malfunction
If the ICC system malfunctions, it will be
turned off automatically, a chime will sound,
and the speed control status warning (or-
ange) will illuminate.
Action to take:
If the warning light comes on, stop the vehicle
in a safe place. Turn the engine off, restart
the engine and set the ICC system again. If it
is not possible to set the ICC system or the
indicator stays on, it may be a malfunction.
Although the normal driving can be contin-
ued, the ICC system should be inspected. It is
recommended that you visit an INFINITI re-
tailer for this service.
ICC sensor maintenance
The radar sensor is located on the front of the
vehicle.
To keep the ICC system operating properly,
be sure to observe the following:
• Always keep the sensor area clean.
• Do not strike or damage the areas around
the sensor.
• Do not attach a sticker (including transpar- ent material) or install an accessory near
the sensor. This could cause failure or
malfunction.
5-96Starting and driving

RAB SYSTEM OPERATION
1RAB system warning light and RAB sys-
tem warning indicator
2Lower display buttons
3Center display (if so equipped) When the shift lever is in the R (Reverse)
position and the vehicle speed is less than
approximately 9 mph (15 km/h), the RAB
system operates.
If a risk of a collision with an obstacle is
detected when your vehicle is backing up, the
RAB system warning indicator will flash in the
vehicle information display, a red frame will
appear in the center display (for vehicles with
the Around View® Monitor system), and the
system will chime three times. The system will
then automatically apply the brakes. After
the automatic brake application, the driver
must depress the brake pedal to maintain
brake pressure.
NOTE:
• The brake lights of the vehicle come on
when braking is performed by the RAB
system.
• When the brakes operate, a noise may be heard. This is not a malfunction.
LSD3561
Starting and driving5-119

Condition B:
In the following conditions, the FEB with Pe-
destrian Detection system warning light will
illuminate, the system will be turned off au-
tomatically and the “Unavailable: Front Radar
Blocked” warning message will appear in the
vehicle information display.
• The sensor area of the front bumper iscovered with dirt or is obstructed.
Action to take
If the warning light (orange) comes on, stop
the vehicle in a safe place, place the shift lever
in the P (Park) position and turn the engine
off. Clean the radar sensor area of the front
bumper or the camera area of the windshield
with a soft cloth, and restart the engine. If the
warning light continues to illuminate, have
the FEB with Pedestrian Detection system
checked. It is recommended that you visit an
INFINITI retailer for this service.
When driving on roads with limited road
structures or buildings (for example, long
bridges, deserts, snow fields, driving next to
long walls).
Action to take
When the above conditions no longer exist,
the FEB with pedestrian detection system
will resume automatically.NOTE:
If the FEB with Pedestrian Detection system
stops working, the PFCW system (if so
equipped) will also stop working.
SYSTEM MALFUNCTION
If the FEB with Pedestrian Detection system
malfunctions, it will be turned off automati-
cally, a chime will sound, the FEB with Pedes-
trian Detection system warning light (orange)
will illuminate and the warning message
[Malfunction] will appear in the vehicle infor-
mation display.
Action to take
If the warning light (orange) comes on, stop
the vehicle in a safe location, turn the engine
off and restart the engine. If the warning light
continues to illuminate, have the FEB with
Pedestrian Detection system checked. It is
recommended that you visit an INFINITI re-
tailer for this service.
NOTE:
If the FEB with Pedestrian Detection system
stops working, the PFCW system (if so
equipped) will also stop working.
Starting and driving5-131

WARNING
• Do not drive beyond the performance ca-
pability of the tires. Accelerating quickly,
sharp steering maneuvers or sudden
braking may cause loss of control, even
with Intelligent 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 personal injury or
vehicle damage.
• Do not attempt to test an AWD
equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamometers
used by some states for emissions test-
ing) or similar equipment even if the
other two wheels are raised off the
ground. Make sure that you inform the
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 dam-
age or unexpected vehicle movement
which could result in serious personal in-
jury or vehicle damage.CAUTION
• Do not operate the engine on a free roller
when any of the wheels are raised.
• If you use the free roller, rotate four
wheels with the same speed without
raising any wheels.
• If an AWD warning message is displayed
while driving there may be a malfunction
in the AWD system. Reduce the vehicle
speed immediately and have your vehicle
checked as soon as possible. It is recom-
mended that you visit an INFINITI re-
tailer for this service.
• The powertrain may be damaged if you
continue driving when the AWD tem-
perature or tire size incorrect messages
are displayed.
• If the AWD high temperature message is
displayed while you are driving, pull off
the road in a safe area, and idle the en-
gine. The driving mode will change to
2WD to prevent the AWD system from
malfunctioning. If the warning message
turns off, you can drive again. •
If the tire size incorrect message is dis-
played while you are driving, pull off the
road in a safe area with the engine idling.
Check that all tire sizes are the same,
that the tire pressure is correct and that
the tires are not excessively worn.
• If a warning message continues to be dis-
played after the above operations, have
your vehicle checked as soon as possible.
It is recommended that you visit an
INFINITI retailer for this service.
Starting and driving5-147

WARNING
• Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite and
cause a fire.
• Safe parking procedures require that
both the parking brake be set and the
transmission placed into P (Park). Fail-
ure to do so could cause the vehicle to
move unexpectedly or roll away and re-
sult in an accident. Make sure the shift
lever has been pushed as far forward as it
can go and cannot be moved without de-
pressing the foot brake pedal. •
Never leave the engine running while the
vehicle is unattended.
• Do not leave children unattended inside
the vehicle. They could unknowingly ac-
tivate switches or controls or make the
vehicle move. Unattended children could
become involved in serious accidents. •
To help avoid risk of injury or death
through unintended operation of the ve-
hicle and/or its systems, do not leave
children, people who require the assis-
tance of others or pets unattended in
your vehicle. Additionally, the tempera-
ture inside a closed vehicle on a warm day
can quickly become high enough to cause
a significant risk of injury or death to
people and pets.
1. Apply the electronic parking brake.
2. Press the Park button to place the vehicle in the P (Park) position.
3. To help prevent the vehicle from rolling into traffic when parked on an incline, it is
a good practice to turn the wheels as
illustrated.
• HEADED DOWNHILL WITH CURB
OA:
Turn the wheels into the curb and move
the vehicle forward until the curb side
wheel gently touches the curb.
• HEADED UPHILL WITH CURB
OB:
Turn the wheels away from the curb and
move the vehicle back until the curb side
wheel gently touches the curb.
WSD0050
PARKING/PARKING ON HILLS
5-148Starting and driving

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

If the chassis control system error warning
message appears in the vehicle information
display, it may indicate that the Active Ride
Control is not functioning properly. Have the
system checked as soon as possible. It is rec-
ommended that you visit an INFINITI retailer
for this service.
When the Active Ride Control is operating,
you may hear noise and sense slight decel-
eration. This is normal and indicates that the
Active Ride Control is operating properly.
WARNING
• Never rely solely on the hill start assist
system to prevent the vehicle from mov-
ing backward on a hill. Always drive
carefully and attentively. Depress the
brake pedal when the vehicle is stopped
on a steep hill. Be especially careful when
stopped on a hill on frozen or muddy
roads. Failure to prevent the vehicle
from rolling backwards may result in a
loss of control of the vehicle and possible
serious injury or death.
• The hill start assist system is not de-
signed to hold the vehicle at a standstill
on a hill. Depress the brake pedal when
the vehicle is stopped on a steep hill. Fail-
ure to do so may cause the vehicle to roll
backwards and may result in a collision or
serious personal injury.
• The hill start assist system may not pre-
vent the vehicle from rolling backwards
on a hill under all load or road conditions.
Always be prepared to depress the brake
pedal to prevent the vehicle from rolling
backwards. Failure to do so may result in
a collision or serious personal injury. When the vehicle is stopped on a hill, the hill
start assist system automatically keeps the
brakes applied to help prevent the vehicle
from rolling backward in the time it takes the
driver to release the brake pedal and apply
the accelerator.
The hill start assist system will operate auto-
matically under the following conditions:
• The transmission is shifted to a forward or
reverse gear.
• The vehicle is stopped completely on a hill by applying the brake. The maximum hold-
ing time is 2 seconds. After 2 seconds the
vehicle will begin to roll back and the hill
start assist system will stop operating
completely.
The hill start assist system will not operate
when the shift lever is placed in the N (Neu-
tral), the Park button is pressed to place the
vehicle in the P (Park) position or on a flat and
level road.
The Hill Start Assist function status can be
checked in the “Chassis Control” mode in the
vehicle information display. For additional in-
formation, see “Vehicle information display”
(P. 2-19).
LSD3922
HILL START ASSIST SYSTEM
Starting and driving5-159