2023 INFINITI QX55 engine

Neutral hold mode function (if so
equipped)
This function enables you to get out of the
vehicle when it is in the N (Neutral) position,
while the engine is running. While this func-
tion is activated, the vehicle can be moved by
pushing with hand (when car washing). When
using this function, release the electronic
parking brake.
WARNING
• Use this function on a level surface only.
Failure to do so may cause the vehicle to
move accidentally and could result in a
collision or serious personal injury.
• Do not use this function for a purpose
other than car washing.
• Do not turn the engine off after neutral
hold mode function is activated, other-
wise the N (Neutral) position will not be
kept and the vehicle will automatically
be placed in the P (Park) position.
• If this function is not activated regard-
less of proper operation, transmission
may malfunction. It is recommended that
you visit an INFINITI retailer for this
service. To activate the Neutral hold mode, perform
the following operations:
1. Push the ignition switch to start the
engine.
2. Release the electronic parking brake.
3. Depress and hold the brake pedal.
4. Push the P (Park) button.
5. Slide the shift lever to the N (Neutral) position, and hold it for 0.5 second until
“N” appears in the vehicle information
display.
6. Slide the shift lever to the N (Neutral) position again, and hold it for 0.5 seconds,
until a message “Neutral Hold Mode has
been activated” appears in the vehicle in-
formation display. For additional informa-
tion, see “Neutral Hold Mode activated”
(P. 2-27).
7. The ignition switch has to be kept in the ON position. Otherwise Neutral hold
mode is canceled and the P (Park) position
is engaged automatically.
To exit the Neutral hold mode, place the shift
lever in any position other than the N (Neu-
tral) position.
NOTE:
• It is necessary to perform the steps 4
through 6 within approximately 5 seconds
to prevent incorrect operation.
• When the shifter is changed to the N (Neu-
tral) position, approximately 5 seconds
later, a message will appear in the vehicle
information display. For additional infor-
mation, see “Neutral Hold Mode guidance”
(P. 2-27).
• If the Neutral hold mode is unavailable, a
message will appear in the vehicle infor-
mation display. For additional informa-
tion, see “Neutral Hold Mode was not ac-
tivated” (P. 2-27). To activate the Neutral
hold mode, wait for a while without shift-
ing operation and then perform the opera-
tions again.
Starting and driving5-21

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 left side or right side paddle shifter
OAandOB. 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
follows:
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.
LSD4197
Manual shift gate
LSD2914
Paddle shifters
5-22Starting 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), engine power and, under some
conditions, vehicle speed will be decreased
automatically to reduce the chance of trans-
mission damage. Vehicle speed can be con-
trolled 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
seconds. Then place the ignition switch back
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 (red) is illu-
minated to confirm that the electronic
parking brake is applied. The electronic
parking brake indicator light (red) 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 position 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 position is shifted to the P (Park) position when the brake force is
maintained by the automatic brake hold
function, the electronic parking brake will
apply 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 brake force is applied by the auto- matic brake hold function for 3 minutes
or longer.
– The vehicle is in the P (Park) position.
– The electronic parking brake is applied manually.
– The driver’s seat belt is unfastened. – The ignition switch is placed in the OFF
position.
– 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).
Starting and driving5-25

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.
– 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. 2. When the automatic brake hold function
goes 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 vehicle is not in the P (Park) position.
• The vehicle is not parked on a steep hill.
NOTE:
The automatic brake hold function retains
the last state even if the engine is restarted.
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.
LSD2916
Starting and driving5-27

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. 2-25)Multiple driving modes can be selected by
using the INFINITI Drive Mode Selector
switch: STANDARD, SPORT, ECO and
PERSONAL.
When the INFINITI Drive Mode Selector se-
lects a mode, the mode may not switch
quickly. This is not a malfunction.
NOTE:
• The mode list will be turned off in approxi-
mately 5 seconds after the mode is
selected.
• Select the STANDARD mode for normal driving. If the driving mode cannot be switched using
the INFINITI Drive Mode Selector when the
ignition switch is in the ON position, have the
system checked by an INFINITI retailer.
STANDARD MODE
STANDARD mode is recommended for nor-
mal driving. Push the INFINITI Drive Mode
Selector switch until “STANDARD” appears
in the vehicle information display. STAN-
DARD mode will also be displayed in the
upper display.
This mode will be selected first each time the
engine is started.
SPORT MODE
The SPORT mode adjusts the engine and
transmission to enhance performance. Push
the INFINITI Drive Mode Selector switch to
the SPORT position. “SPORT” appears in the
vehicle information display. SPORT mode will
also be displayed in the upper display.
NOTE:
In the SPORT mode, fuel economy may be
reduced.
LSD3922LSD2917
INFINITI Drive Mode Selector switch
INFINITI DRIVE MODE SELECTOR
Starting and driving5-29

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.
How to set the PERSONAL mode
Perform the following steps to set the PER-
SONAL mode:
1. Press the MENU button
O1and select
“INFINITI Drive Mode Selector” on the
lower display.
2. Select “Engine/Transmission,” “Steering,” “Active Trace Control” or “Active Engine
Brake” and select each item. (See later
about the feature of each item.)
3. Select “Back” or press the MENU button
O1to finish the PERSONAL mode setting. Engine/Transmission:
“Engine/Transmission” can be set to “Stan-
dard,” “Sport” or “Eco.”
Steering (models with Direct Adaptive
Steering®):
Multiple combinations of steering mode and
steering response can be set.
Mode
Response
Sport Dynamic+
Dynamic
Default
Standard Default
Steering (models without Direct Adaptive
Steering®):
“Steering” can be set to “Sport” or “Standard.”
Active Trace Control:
“Active Trace Control” can be set to ON (en-
abled) or OFF (disabled). For additional infor-
mation, see “Active Trace Control” (P. 5-144).
Active Engine Brake:
“Active Engine Brake” can be set to ON (en-
abled) or OFF (disabled). For additional infor-
mation, see “Active Engine Brake” (P. 5-145).LSD2982
5-30Starting and driving

Reset Drive Mode Settings to Default:
Touch to restore all the PERSONAL mode
settings to default. For additional informa-
tion, refer to the separate INFINITI InTouch™
Owner’s Manual.
ECO MODE
The ECO mode adjusts the engine and trans-
mission to enhance fuel economy.
NOTE:
Selecting this drive mode will not necessarily
improve fuel economy as many driving fac-
tors influence its effectiveness.
Operation
Push the Drive Mode Selector switch to the
ECO position. “ECO” appears in the vehicle
information display and the ECO drive indi-
cator light illuminates on the instrument
panel. ECO mode will also be displayed in the
upper display.
When the accelerator pedal is depressed
within the range of economy drive, the ECO
drive indicator light illuminates in green.
When the accelerator pedal is depressed
above the range of economy drive, the ECO
drive indicator light turns off.The ECO drive indicator light will not illumi-
nate in the following cases:
• When the shift lever is in the R (Reverse)
position.
• When the vehicle speed is below 3 mph (4.8 km/h) or over 90 mph (144 km/h).
• When the Intelligent Cruise Control system (if so equipped) is operated.
The TSR system provides the driver with in-
formation about the most recently detected
speed limit. The system captures the road
sign information with the multi-sensing front
camera unit
O1located on the windshield in
front of the inside rearview mirror and dis-
plays the detected signs in the vehicle infor-
mation display. For vehicles equipped with a
navigation system, the speed limit displayed
is based on a combination of navigation sys-
tem data and live camera recognition. TSR
information is always displayed at the top of
the vehicle information display, and option-
ally in the main central area of the display
screen.
LSD4091
TRAFFIC SIGN RECOGNITION (TSR)
(if so equipped)
Starting and driving5-31