ignition INFINITI QX50 2021 Manual Online

• If the engine is very hard to start be-cause it is flooded, depress the accel-
erator pedal all the way to the floor and
hold it. Push the ignition switch to the
ON position to start cranking the en-
gine. After 5 or 6 seconds, stop cranking
by pushing the ignition switch to the
LOCK position. After cranking the en-
gine, release the accelerator pedal.
Crank the engine with your foot off the
accelerator pedal by depressing the
brake pedal and pushing the ignition
switch to start the engine. If the engine
starts, but fails to run, repeat the above
procedure.
CAUTION
Do not operate the starter for more than
15 seconds at a time. If the engine does not
start, push the ignition switch to the OFF
position and wait 10 seconds before crank-
ing again, otherwise the starter could be
damaged. 4.
Warm-up:
Allow the engine to idle for at least 30
seconds after starting. Do not race the
engine while warming it up. Drive at a
moderate speed for a short distance first,
especially in cold weather. In cold
weather, keep the engine running for a
minimum of2-3minutes before shutting
it off. Starting and stopping the engine
over a short period of time may make the
vehicle more difficult to start.
5. To stop the engine, place the shift lever in the P (Park) position and push the ignition
switch to the OFF position.NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electronic accessories that consume battery power
when the engine is not running (phone
chargers, GPS, DVD players, etc.).
2. The vehicle is not driven regularly and/or only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
REMOTE ENGINE START (if so
equipped)
Vehicles started with the Remote Engine
Start require the ignition switch to be placed
in the ON position before the shift lever can
be moved from the P (Park) position. To place
the ignition switch in the ON position, follow
these steps:
1. Make sure that the Intelligent Key is on you.
2. Apply the brake.
3. Push the ignition switch once to the ON position.
For additional information, see “INFINITI In-
telligent Key” (P. 3-2).
Starting and driving5-17

CONTINUOUSLY VARIABLE
TRANSMISSION (CVT)
WARNING
• Do not depress the accelerator pedal
while shifting from P (Park) or N (Neu-
tral) to R (Reverse), D (Drive), or M
(Manual shift mode). Always depress the
brake pedal until shifting is completed.
Failure to do so could cause you to lose
control and have an accident.
• Cold engine idle speed is high, so use cau-
tion when shifting into a forward or re-
verse gear before the engine has warmed
up.
• Do not downshift abruptly on slippery
roads. This may cause a loss of control.
• Never shift to either the P (Park) or R
(Reverse) position while the vehicle is
moving forward and P (Park) or D (Drive)
position while the vehicle is reversing.
This could cause an accident or damage
the transmission.
• Except in an emergency, do not shift to
the N (Neutral) position while driving.
Coasting with the transmission in the N
(Neutral) position may cause serious
damage to the transmission.
CAUTION
• To avoid possible damage to your ve-
hicle, when stopping the vehicle on an
uphill grade, do not hold the vehicle by
depressing the accelerator pedal. The
foot brake should be used for this
purpose.
• Do not hang items on the shift lever. This
may cause an accident due to a sudden
start.
The CVT in your vehicle is electronically con-
trolled to produce maximum power and
smooth operation.
The recommended operating procedures for
this transmission are shown on the following
pages. Follow these procedures for maxi-
mum vehicle performance and driving
enjoyment.
Engine power may be automatically reduced
to protect the CVT if the engine speed in-
creases quickly when driving on slippery
roads or while being tested on some
dynamometers.Starting the vehicle
1. After starting the engine, fully depress the foot brake pedal before moving the shift
lever out of the P (Park) position.
This Continuously Variable Transmission
is designed so that the foot brake pedal
must be depressed before shifting from P
(Park) to any driving position while the
ignition switch is in the ON position.
The shift lever cannot be moved out of
the P (Park) position and into any of the
other positions if the ignition switch is
placed in the OFF position.
2. Keep the foot brake pedal depressed and move the shift lever to a driving position.
3. Release the parking brake and foot brake pedal and then gradually start the vehicle
in motion.
WARNING
• Do not depress the accelerator pedal
while shifting from P (Park) or N (Neu-
tral) to R (Reverse), D (Drive), or M
(Manual shift mode). Always depress the
brake pedal until shifting is completed.
Failure to do so could cause you to lose
control and have an accident.
DRIVING THE VEHICLE
5-18Starting and driving

•The following operations are not allowed
because excessive force would be ap-
plied to the transmission and this may
result in damage to the vehicle:
– Moving the shift lever to the R (Re-
verse) position when driving forward.
– Moving the shift lever to the D (Drive)
position when reversing.
If these operations are attempted, a chime
sounds and the vehicle shifts to the N (Neu-
tral) position.
P (Park)
CAUTION
• To prevent transmission damage, use the
P (Park) position only when the vehicle is
completely stopped.
• Do not slide the shift lever while pressing
the Park button. This may damage the
shift control system.
Use this position when the vehicle is parked
or starting the engine. Always make sure that
the vehicle is completely stopped before
pressing the Park button
O1to engage the P
(Park) position. For maximum safety, the
brake pedal must be depressed before en-
gaging the P (Park) position. Use this position
together with the parking brake. When park- ing on a hill, first depress the brake pedal,
apply the parking brake and then engage the
P (Park) position. The parking lock should not
be used as a brake when parking. In order to
secure the vehicle, always apply the elec-
tronic parking brake in addition to the parking
lock.
In the event of a malfunction of the vehicle’s
electronics, the transmission may lock in the
P (Park) position. Have the vehicle’s electron-
ics checked immediately. It is recommended
that you visit an INFINITI retailer for this
service.
The P (Park) position is automatically en-
gaged if:
• You switch off the ignition switch.
• You unfasten the driver’s seat belt and
open the driver’s door when the vehicle is
stationary or driving at a very low speed
and the transmission is in the D (Drive) po-
sition or R (Reverse) position.
R (Reverse)
CAUTION
To prevent transmission damage, use the R
(Reverse) position only when the vehicle is
completely stopped. Use the R (Reverse) position to back up. Make
sure the vehicle is completely stopped before
selecting the R (Reverse) position.
The brake
pedal must be depressed and the shift lever
button pressed to move the shift lever from
the idle position to R (Reverse).
If the vehicle is placed in the R (Reverse)
position while forwarding, the chime will
sound and the vehicle will switch into the N
(Neutral) position.
N (Neutral)
Neither forward nor reverse gear is engaged.
The engine can be started in this position. You
may shift to N (Neutral) and restart a stalled
engine while the vehicle is moving. You can
select this position by holding the shift lever
at this position for 0.5 seconds.
D (Drive)
Use this position for all normal forward driv-
ing. The CVT changes gears automatically. All
forward gears are available. If the vehicle is
placed in the D (Drive) position while revers-
ing, the chime will sound and the vehicle will
switch into the N (Neutral) position.
5-20Starting and driving

• Remember not to drive at high speeds forextended periods of time in lower than 8th
gear. This reduces fuel economy.
When shifting up
Use the + (up) side paddle shifter
OB. (Shifts to
higher range.)
When shifting down
Use the − (down) side paddle shifter
OA.
(Shifts to lower range.)
• The transmission will automatically down- shift the gears. (For example, if you select
the 3rd range, the transmission will shift
down between the 3rd and 1st gears.)
• Moving the shift lever rapidly to the same side twice will shift the ranges in
succession.
When canceling the manual shift mode
Move the shift lever to the D (Drive) position
to return the transmission to the normal driv-
ing mode.
• In the manual shift mode, the transmission
may not shift to the selected gear. This
helps maintain driving performance and
reduces the chance of vehicle damage or
loss of control. •
When this situation occurs, the Continu-
ously Variable Transmission (CVT) posi-
tion indicator will blink and the chime will
sound.
• In the manual shift mode, the transmission
may shift up automatically to a higher
range than selected if the engine speed is
too high. When the vehicle speed de-
creases, the transmission automatically
shifts down and shifts to 1st gear before
the vehicle comes to a stop.
• CVT operation is limited to automatic drive mode when CVT fluid temperature is ex-
tremely low even if manual shift mode is
selected. This is not a malfunction. When
CVT fluid warms up, manual mode can be
selected.
• When the CVT fluid temperature is high, the shift range may upshift in lower rpm
than usual. This is not a malfunction.
Accelerator downshift
— in D (Drive) position —
For passing or hill climbing, depress the ac-
celerator pedal to the floor. This shifts the
transmission down into a lower gear, de-
pending on the vehicle speed.
High fluid temperature protection
mode
This transmission has a high fluid tempera-
ture protection mode. If the fluid temperature
becomes too high (for example, when climb-
ing steep grades in high temperatures with
heavy loads, such as when towing a trailer),
engine power and, under some conditions,
vehicle speed will be decreased automatically
to reduce the chance of transmission dam-
age. Vehicle speed can be controlled with the
accelerator pedal, but the engine and vehicle
speed may be limited.
Fail-safe
When the fail-safe operation occurs, the
Continuously Variable Transmission will not
be shifted into the selected driving position.
If the vehicle is driven under extreme condi-
tions, such as excessive wheel spinning and
subsequent hard braking, the fail-safe sys-
tem may be activated. The Malfunction Indi-
cator Light (MIL) may come on to indicate
the fail-safe mode is activated. For addi-
tional information, see “Malfunction Indica-
tor Light (MIL)” (P. 2-15). This will occur
even if all electrical circuits are functioning
properly. In this case, place the ignition
switch in the OFF position and wait for 10
5-22Starting and driving

seconds. Then place the ignition switch back
in the ON position. The vehicle should return
to its normal operating condition. If it does
not return to its normal operating condition,
have the transmission checked and repaired,
if necessary. It is recommended that you visit
an INFINITI retailer for this service.
WARNING
When the high fluid temperature protec-
tion mode or fail-safe operation occurs, ve-
hicle speed may be gradually reduced. The
reduced speed may be lower than other
traffic, which could increase the chance of
a collision. Be especially careful when driv-
ing. If necessary, pull to the side of the road
at a safe place and allow the transmission
to return to normal operation, or have it
repaired if necessary.
WARNING
• Be sure the parking brake is fully re-
leased before driving. Failure to do so
can cause brake failure and lead to an
accident.
• Do not release the parking brake from
outside the vehicle.
• Do not use the shift lever in place of the
parking brake. When parking, be sure the
parking brake is fully engaged. •
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.
The electronic parking brake can be applied
or released automatically or by operating the
parking brake switch.
AUTOMATIC OPERATION
The electronic parking brake will apply auto-
matically if the ignition switch is placed in the
OFF position when the brake force is main-
tained by the automatic brake hold function.
The electronic parking brake is automatically
released as soon as the vehicle starts and the
accelerator pedal is depressed.
The driver’s seat belt needs to be fastened.
LSD2915
ELECTRONIC PARKING BRAKE
Starting and driving5-23

WARNING
• The electronic parking brake will not be
automatically applied when the engine is
stopped without using the ignition
switch (for example, by engine stalling).
Without the vehicle stationary, the elec-
tronic parking brake will not be auto-
matically applied even if the engine is
turned off with the ignition switch.
• Before leaving the vehicle, press the Park
button to place the vehicle in the P (Park)
position and check that the electronic
parking brake indicator light is illumi-
nated to confirm that the electronic
parking brake is applied. The electronic
parking brake indicator light will remain
on for a period of time after the driver’s
door is locked.
CAUTION
When parking in an area where the outside
temperature is below 32°F (0°C), the park-
ing brake, if applied, may freeze in place
and may be difficult to release.
For safe parking, it is recommended that
you place the shift lever in the P (Park)
position and securely block the wheels.
NOTE:
• If a malfunction occurs in the electronic parking brake system (for example, due to
battery discharge), it is recommended that
you visit an INFINITI retailer.
• If the shift lever is moved to the P (Park) position when the brake force is main-
tained by the automatic brake hold func-
tion, the electronic parking brake will ap-
ply automatically.
• If the driver’s seat belt is unfastened when the brake force is maintained by the auto-
matic brake hold function, the electronic
parking brake will apply automatically.
• If the ignition switch is placed in the OFF position when the brake force is main-
tained by the automatic brake hold func-
tion, the electronic parking brake will ap-
ply automatically.
• Under the following conditions, the elec- tronic parking brake will automatically be
applied and the brake force of the auto-
matic brake hold will be released:
– The braking force is applied by the auto- matic brake hold function for 3 minutes
or longer.
– The vehicle is placed in the “P” (Park) position.
– The driver’s seat belt is unfastened. – The ignition switch is placed in the
“OFF” position.
– The electronic parking brake is applied.
– If a malfunction occurs in the automatic brake hold function.
MANUAL OPERATION
The electronic parking brake will not be auto-
matically applied if the engine is stopped
without using the ignition switch (for ex-
ample, by engine stalling). In such a case, you
have to apply the parking brake manually.
To apply: Pull the switch up
O1. The indicator
light
OAwill illuminate.
To release: With the ignition switch in the ON
position, depress the brake pedal and push
the switch down
O2. The indicator lightOAwill turn off.
Before driving, check that the electronic
parking brake indicator light (red) (if so
equipped)
orgoes out. For addi-
tional information, see “Warning lights, indi-
cator lights and audible reminders” (P. 2-9).
NOTE:
• A buzzer will sound if the vehicle is driven without releasing the parking brake. For
additional information, see “Warning
lights, indicator lights and audible remind-
ers” (P. 2-9).
5-24Starting and driving

• While the electronic parking brake is ap-plied or released, an operating sound is
heard from the lower side of the rear seat.
This is normal and does not indicate a
malfunction.
• When the electronic parking brake is fre- quently applied and released in a short pe-
riod of time, the parking brake may not
operate in order to prevent the parking
brake system from overheating. If this oc-
curs, operate the electronic parking brake
switch again after waiting approximately
1 minute.
• If the electronic parking brake must be ap- plied while driving in an emergency, pull up
and hold the parking brake switch. When
you release the parking brake switch, the
parking brake will be released.
• While pulling up the electronic parking brake switch during driving, the parking
brake is applied and a chime sounds. The
electronic parking brake indicator light
(red) in the meter and in the parking brake
switch illuminates. This does not indicate a
malfunction. The electronic parking brake
indicator light (red) in the meter and in the
parking brake switch turns off when the
parking brake is released. • When pulling the electronic parking brake
switch up with the ignition switch in the
OFF or AUTO ACC position, the parking
brake switch indicator light will continue
to illuminate for a short period of time.
WHEN TOWING A TRAILER
Depending on the weight of the vehicle and
trailer and the steepness of the slope, there
may be a tendency for the vehicle to move
backwards when starting from a standstill.
When this occurs, you can use the parking
brake switch in the same way as a conven-
tional lever type parking brake.
Before starting on sloping roads when tow-
ing a trailer, be sure to read the following to
prevent the vehicle from moving backwards
unintentionally.
• Release the parking brake switch as soonas the engine is delivering enough torque to
the wheels. The automatic brake hold function maintains
the braking force without the driver having to
depress the brake pedal when the vehicle is
stopped at a traffic light or intersection. As
soon as the driver depresses the accelerator
pedal again, the automatic brake hold func-
tion is deactivated and the braking force is
released. The operating status of the auto-
matic brake hold can be displayed on the
vehicle information display.
WARNING
• The automatic brake hold function is not
designed to hold the vehicle on a steep
hill or slippery road. Never use the auto-
matic brake hold when the vehicle is
stopped on a steep hill or slippery road.
Failure to do so may cause the vehicle to
move.
• The automatic brake hold function is de-
signed to operate on gradients between
—30% to +30%. Outside this range the
system may not operate. The automatic
brake hold warning may appear in the
Vehicle Information Display to request
that the driver retake control by de-
pressing the brake pedal.
AUTOMATIC BRAKE HOLD
Starting and driving5-25

•When the automatic brake hold function
is activated but fails to maintain the ve-
hicle at a standstill, depress the brake
pedal to stop the vehicle. If the vehicle
unexpectedly moves due to outside con-
ditions, the chime may sound and auto-
matic brake hold warning may illuminate
in the vehicle information display.
• Be sure to deactivate the automatic
brake hold function when using a car
wash or towing your vehicle.
• Make sure to place the shift lever in the P
(Park) position and apply the parking
brake when parking your vehicle, riding
on or off the vehicle, or loading luggage.
Failure to do so could cause the vehicle to
move or roll away unexpectedly and re-
sult in serious personal injury or property
damage.WARNING
• If any of the following conditions occur,
the automatic brake hold function may
not function. Have the system checked
promptly. It is recommended that you
visit an INFINITI retailer for this service.
Failure to operate the vehicle in accor-
dance with these conditions could cause
the vehicle to move or roll away unex-
pectedly and result in serious personal
injury or property damage.
– A warning message appears in the ve-
hicle information display.
– The indicator light on the automatic
brake hold switch does not illuminate
when the switch is pushed.
• The automatic brake hold function will
not be activated if the Slip indicator
light, electronic parking brake warning
light or master warning light illuminate
and the chassis control system fault
message appears in the vehicle informa-
tion display.
• To maintain the braking force to keep
the vehicle to a standstill, a noise may be
heard. This is not a malfunction.
HOW TO ACTIVATE/
DEACTIVATE THE AUTOMATIC
BRAKE HOLD FUNCTION
For additional information on activating and
deactivating the automatic brake hold func-
tion, refer to the instructions outlined in this
section.
How to activate the automatic
brake hold function
1. With the ignition switch in the ON posi- tion, push the automatic brake hold switch
O1. The indicator light on the automatic
brake hold switch
O2illuminates.
LSD2916
5-26Starting and driving

2. When the automatic brake hold functiongoes into standby, the automatic brake
hold indicator light (white) illuminates.
To use the automatic brake hold function, the
following conditions need to be met:
• The driver’s seat belt is fastened.
• The electronic parking brake is released.
• The shift lever is not in the P (Park) position.
• The vehicle is not parked on a steep hill
NOTE:
The automatic brake hold function resets to
OFF every time the ignition switch is
switched from the ON position to the OFF
position.
How to deactivate the automatic
brake hold function
While the automatic brake hold function is
activated, push the automatic brake hold
switch to turn off the automatic brake hold
indicator light and deactivate the automatic
brake hold function. To deactivate the auto-
matic brake hold function while the brake
force has been maintained by the automatic
brake hold function, depress the brake pedal
and push the automatic brake hold switch.
WARNING
Make sure to firmly depress and hold the
brake pedal when turning off the auto-
matic brake hold function while the brake
force is applied. When the automatic brake
hold function is deactivated, the brake
force will be released. This could cause the
vehicle to move or roll away unexpectedly.
Failure to prevent the vehicle from rolling
may result in serious personal injury or
property damage.
HOW TO USE THE AUTOMATIC
BRAKE HOLD FUNCTION
For additional information on using the auto-
matic brake hold function, refer to the in-
structions outlined in this section.
To maintain braking force
automatically
With the automatic brake hold function acti-
vated and the automatic brake hold indicator
light (white) illuminated on the meter, depress
the braking pedal to stop the vehicle. The
automatic brake hold indicator illuminates
green on the meter, the brake force is auto-
matically applied without your foot de-
pressed on the brake pedal. While the brake hold is maintained, the automatic brake hold
indicator light (green) illuminates on the
meter.
To start the vehicle from a standstill
With the shift lever not in the P (Park) or N
(Neutral) position, depress the accelerator
pedal while the brake force is maintained. The
brake force will automatically be released to
restart the vehicle.
The automatic brake hold indicator light
(white) on the meter illuminates and the au-
tomatic brake hold returns to standby.
Parking
When the shift lever is in the P (Park) position
with the brake force maintained by the auto-
matic brake hold function, the parking brake
will automatically be applied and the brake
force of the automatic brake hold will be
released. The automatic brake hold indicator
light turns off. When the parking brake is
applied with the brake force maintained by
the automatic brake hold function, the brake
force of the automatic brake hold will be
released. The automatic brake hold indicator
light turns off.
Starting and driving5-27

NOTE:
• Under the following conditions, the park-ing brake will automatically be applied and
the brake force of the automatic brake
hold will be released:– The braking force is applied by the auto- matic 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 automatic brake hold function
– When the P (Park) range is selected
– The electronic parking brake is applied by driver’s operation
• When the vehicle stops, but the brake force is not automatically applied, depress
the brake pedal firmly until the automatic
brake hold indicator light (green)
illuminates.
Automatic brake hold function
display
The automatic brake hold function status is
shown by color in the “Chassis Control” mode
in the vehicle information display. For addi-
tional information, see “Vehicle information
display” (P. 2-19).
Also depending on the driving situations,
some warnings or indicators may be dis-
played in the vehicle information display. For
additional information, see “Vehicle informa-
tion display warnings and indicators”
(P. 2-21) 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 se-
lects a mode, the mode may not switch
quickly. This is not a malfunction.
• Select the STANDARD mode center for normal driving.
LSD3922LSD2917
Drive Mode Selector switch
INFINITI DRIVE MODE SELECTOR
5-28Starting and driving