Vehicle dynamic control INFINITI QX50 2020 User Guide

Switch operation:
The front seats are warmed by built-in heat-
ers. The switches are located on the center
console and can be operated independently
of each other.1. Place the ignition switch in the ON posi- tion.
2. Push the heated seat switch and select the desired heat range.
∙ For high heat, push the switch once.
∙ For medium heat, push the switch twice.
∙ For low heat, push the switch three times.
∙ The indicator light will illuminate when the heater is on.
3. To turn off the heater, push the heated seat switch again. Make sure that the
indicator light turns off.
The heater is controlled by a control
module, automatically turning the heater
on and off.
The indicator light will remain on as long
as the switch is on. When the seat is warmed, or before you
leave the vehicle, be sure to turn the
switch off.
Touch screen operation:
∙ Touch the
key on the lower display.
Select an item from High, Mid, Low, or
OFF.
NOTE:
For additional information, refer to “Heater
and air conditioner (automatic)” in the
“Monitor, climate, audio, phone and voice
recognition” section of this manual.
WARNING
When this switch is activated the following
systems (if so equipped) are turned off and
will not work.
∙ Distance Control Assist (DCA)
∙ Blind Spot Intervention® (BSI)
∙ Lane Departure Prevention (LDP)
The dynamic driver assistance switch is used
to turn on and off the following systems (Dis-
tance Control Assist (DCA) , Blind Spot Inter-
vention® (BSI), and Lane Departure Preven-
tion (LDP)) that are activated (if so equipped)
using the settings menu in the lower display.
LIC3828
DYNAMIC DRIVER ASSISTANCE
SWITCH (for vehicles without
ProPILOT Assist) (if so equipped)
Instruments and controls2-49

When the dynamic driver assistance switch is
turned off, the indicator on the switch is off.
The indicator will also be off if the system is
deactivated using the settings menu.
The DCA system brakes and moves the ac-
celerator pedal upward according to the dis-
tance from and the relative speed of the ve-
hicle ahead to help assist the driver in
maintaining a following distance. For addi-
tional information, refer to “Distance Control
Assist (DCA)” in the “Starting and driving”
section of this manual.
The BSI system helps alert the driver of other
vehicles in adjacent lanes when changing
lanes, and helps assist the driver to return the
vehicles to the center of the traveling lane.
For additional information, refer to “Blind
Spot Intervention® (BSI)” in the “Starting and
driving” section of this manual.
The LDP system warns the driver with a
warning indicator in the vehicle information
display and a steering wheel vibration, and
helps assist the driver to return the vehicle to
the center of the traveling lane by applying
the brakes to the left or right wheels individu-
ally (for a short period of time). For additional
information, refer to “Lane Departure Pre-
vention (LDP)” in the “Starting and driving”
section of this manualThe Steering Assist switch is used to turn on
and off the Steering Assist system that is
activated using the settings menu of the ve-
hicle information display.
The Steering Assist system controls the
steering system to help keep your vehicle
near the center of the lane when driving. For
additional information, refer to “ProPILOT
Assist” in the “Starting and driving” section of
this manual.
WARNING
∙ The front sonar system is a convenience
but it is not a substitute for proper
driving.
∙ The rear sonar system is a convenience but it is not a substitute for proper back-
ing. Always turn and check that it is safe
to do so before backing up. Always back
up slowly.
LIC3853LIC4270
STEERING ASSIST SWITCH (for
vehicles with ProPILOT Assist) (if so
equipped) FRONT AND REAR SONAR SYSTEM
SWITCH (if so equipped)
2-50Instruments and controls

Intelligent All-Wheel Drive (AWD)
(if so equipped)................................ 5-173
Parking/parking on hills .......................5-176
Power steering ................................ 5-177
Electric power steering type ................5-177
Direct Adaptive Steering® type .............5-178
Brake system ................................. 5-180
Brake precautions .......................... 5-180
Anti-lock Braking System (ABS) .............5-180
Brake Assist ............................... 5-181
Vehicle Dynamic Control (VDC) system .........5-182
Brake force distribution .....................5-183
Chassis Control ............................... 5-184
Active Trace Control ....................... 5-184
Active Engine Brake ........................ 5-185
Active Ride Control ......................... 5-186
Hill start assist system ......................... 5-186
Front and rear sonar system (if so equipped) ....5-187 System operation
.......................... 5-187
How to enable/disable the sonar system ....5-190
Sonar limitations ........................... 5-190
System temporarily unavailable .............5-190
System maintenance ....................... 5-191
Cold weather driving .......................... 5-191
Freeing a frozen door lock ..................5-191
Antifreeze ................................. 5-191
Battery .................................... 5-191
Draining of coolant water ..................5-192
Tire equipment ............................. 5-192
Special winter equipment ...................5-192
Driving on snow or ice ...................... 5-192
Engine block heater (if so equipped) .........5-193
Active noise cancellation/Active sound
enhancement ................................. 5-193
Active noise cancellation ....................5-194
Active sound enhancement .................5-194

∙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. Fail-
ure to do so could cause the vehicle to move
or roll away unexpectedly and result in se-
rious personal injury or property damage.
CAUTION
∙ 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.
– 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 Vehicle Dynamic
Control (VDC) OFF indicator light, elec-
tronic parking brake warning light or
master warning light illuminate and the
chassis control system fault message ap-
pears in the vehicle information 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
1. The indicator light on the au-
tomatic brake hold switch
2illuminates. 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 shift lever is not in the P (Park) posi- tion.
∙ 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.
LSD2916
Starting and driving5-27

3. Select “Back” or press the MENU buttonto finish the PERSONAL mode setting.
Engine/Transmission:
“Engine/Transmission” can be set to “Stan-
dard,” “Sport” or “Eco.”
Steering (models with Direct Adaptive
Steering®):
Four 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, refer to “Active Trace Control” in this
section. Active Engine Brake:
“Active Engine Brake” can be set to ON (en-
abled) or OFF (disabled). For additional infor-
mation, refer to “Active Engine Brake” in this
section.
Reset Settings:
Select “Reset Settings” and select “OK” to
restore all the PERSONAL mode settings to
default.
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. For ECO pedal
system equipped models, refer to “ECO pedal
system” in this section.
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 sys- tem (if so equipped) is operated.
ECO pedal system (if so equipped)
The ECO pedal system helps assist the driver
to improve fuel economy by increasing the
reaction force of the accelerator pedal. When
the ECO drive indicator light is blinking or
turns off, the ECO pedal system increases
the reaction force of the accelerator pedal.
5-30Starting and driving

∙ When a sudden change in brightness oc-curs. (For example, when the vehicle en-
ters or exits a tunnel or under a bridge.)
While the LDP system is operating, you may
hear a sound of brake operation. This is nor-
mal and indicates that the LDP system is
operating properly.
SYSTEM TEMPORARILY
UNAVAILABLE
Condition A:
The warning and assist functions of the LDP
system are not designed to work under the
following conditions: ∙ When you operate the lane change signal and change the traveling lanes in the di-
rection of the signal. (The LDP system will
be deactivated for approximately 2 sec-
onds after the lane change signal is
turned off.)
∙ When the vehicle speed lowers to less than approximately 37 mph (60 km/h).
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the warning and assist functions will
resume. Condition B:
The assist function of the LDP system is not
designed to work under the following condi-
tions (warning is still functional):
∙ When the brake pedal is depressed.
∙ When the steering wheel is turned as far as necessary for the vehicle to change
lanes.
∙ When the vehicle is accelerated during LDP system operation.
∙ When the Intelligent Cruise Control (ICC) approach warning occurs.
∙ When the hazard warning flashers are operated.
∙ When driving on a curve at high speed.
After the above conditions have finished and
the necessary operating conditions are satis-
fied, the LDP system application of the
brakes will resume. Condition C:
If the following messages appear in the ve-
hicle information display the LDP system will
be turned off automatically:
∙ “Not Available Poor Road Conditions”: When the VDC system (except Traction
Control System [TCS] function) or ABS
operates.
∙ “Currently not available”: When the VDC system is turned off.
Action to take:
When the above conditions no longer exist,
turn off the LDP system. Push the dynamic
driver assistance switch (for vehicles without
ProPILOT Assist) or the ProPILOT Assist
switch (for vehicles with ProPILOT Assist) on
the steering wheel again to turn the LDP
system back on.
5-44Starting and driving

When the SET– switch is pushed under the
following conditions, the system cannot be
set.
A warning chime will sound and a message
will pop up:∙ When the VDC system is off (To use the ICC system, turn on the VDC system.
Push the ICC switch to turn off the ICC
system and reset the ICC switch by push-
ing the ICC switch again.)
For additional information about the
VDC system, refer to “Vehicle Dynamic
Control (VDC) system” in this section.
∙ When VDC is operating
∙ When a wheel is slipping (To use the ICC system, make sure the wheels are no lon-
ger slipping.)
1System set display with vehicle ahead
2System set display without vehicle ahead
The driver sets the desired vehicle speed
based on the road conditions. The ICC sys-
tem maintains the set vehicle speed, similar to
standard cruise control, as long as no vehicle
is detected in the lane ahead. The ICC system
displays the set speed.
Vehicle detected ahead
When a vehicle is detected in the lane ahead,
the ICC system decelerates the vehicle by
controlling the throttle and applying the
brakes to match the speed of a slower vehicle ahead. The system then controls the vehicle
speed based on the speed of the vehicle
ahead to maintain the driver selected dis-
tance.
NOTE:
∙ The stop lights of the vehicle come on
when braking is performed by the ICC
system.
∙ When the brake operates, a noise may be
heard. This is not a malfunction.
When a vehicle ahead is detected, the vehicle
ahead detection indicator comes on. The ICC
system will also display the set speed and
selected distance.
Vehicle ahead not detected
When a vehicle is no longer detected ahead,
the ICC system gradually accelerates your
vehicle to resume the previously set vehicle
speed. The ICC system then maintains the set
speed.
When a vehicle is no longer detected, the
vehicle ahead detection indicator turns off.
If a vehicle ahead appears during accelera-
tion to the set vehicle speed or any time the
ICC system is in operation, the system con-
trols the distance to that vehicle.
LSD2719
Starting and driving5-85

1. Vehicle information display
2. Lower display buttons
3. ProPILOT Assist switch (for vehicleswith ProPILOT Assist)
4. Dynamic driver assistance switch (for vehicles without ProPILOT Assist)
5. DCA ON indicator
DCA SYSTEM OPERATION
WARNING
Failure to follow the warnings and instruc-
tions for proper use of the DCA system
could result in serious personal injury or
death.
∙ When the vehicle ahead detection indica- tor light is not illuminated, the system
will not control the vehicle or warn the
driver.
∙ Never place your foot under the brake pedal. Your foot may be caught when the
system controls the brake.
∙ Depending on the position of the accel- erator pedal, the system may not be able
to assist the driver to release the accel-
erator pedal appropriately.
LSD3562
Starting and driving5-135

∙ When the VDC system is off (To use theDCA system, turn on the VDC, then push
the dynamic driver assistance switch [for
models without ProPILOT Assist] or the
ProPILOT Assist switch [for models with
ProPILOT Assist] on the steering wheel.)
For additional information about the
VDC system, refer to “Vehicle Dynamic
Control (VDC) system” in this section.
∙ When ABS or VDC (including the TCS) is operating
∙ When the radar signal is temporarily in- terrupted
Action to take:
When the conditions listed above are no lon-
ger present, turn the system off with the
dynamic driver assistance switch (for models
without ProPILOT Assist) or the ProPILOT
Assist switch (for models with ProPILOT As-
sist) on the steering wheel. Turn the DCA
system back on to use the system. Condition B:
When the radar sensor area is covered with
dirt or is obstructed, making it impossible to
detect a vehicle ahead, the DCA system is
automatically canceled.
The chime sounds and the DCA system
warning light (orange) will come on and the
“Unavailable: Front Radar Blocked” warning
will appear.Action to take:
If the warning light comes on, park 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 signal is tem-
porarily interrupted, clean the sensor area
and restart the engine. If the “Unavailable:
Front Radar Blocked” warning continues to
be displayed, have the DCA system checked.
It is recommended you visit and 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) the system may illuminate the sys-
tem warning light (orange) and display the
“Unavailable Front Radar Blocked” message.
Action to take:
When the above conditions no longer exist,
the DCA system will resume automatically.
Condition C:
When the DCA system is not operating prop-
erly, the chime sounds, the DCA system
warning light (orange) and the system “Mal-
function” warning message will appear in the
vehicle information display.
LSD2992
Starting and driving5-143

Follow these easy-to-use Fuel Efficient Driv-
ing Tips to help you achieve the most fuel
economy from your vehicle.1. Use Smooth Accelerator and Brake
Pedal Application
∙ Avoid rapid starts and stops.
∙ Use smooth, gentle accelerator and brake application whenever possible.
∙ Maintain constant speed while com- muting and coast whenever possible.
2. Maintain Constant Speed
∙ Look ahead to try and anticipate and minimize stops.
∙ Synchronizing your speed with traffic lights allows you to reduce your num-
ber of stops.
∙ Maintaining a steady speed can mini- mize red light stops and improve fuel
efficiency.
3. Use Air Conditioning (A/C) at Higher
Vehicle Speeds
∙ Below 40 mph (64 km/h), it is more efficient to open windows to cool the
vehicle due to reduced engine load. ∙ Above 40 mph (64 km/h), it is more
efficient to use A/C to cool the vehicle
due to increased aerodynamic drag.
∙ Recirculating the cool air in the cabin when the A/C is on reduces cooling
load.
4. Drive at Economical Speeds and Dis-
tances
∙ Observing the speed limit and not ex- ceeding 60 mph (97 km/h) (where le-
gally allowed) can improve fuel effi-
ciency due to reduced aerodynamic
drag.
∙ Maintaining a safe following distance behind other vehicles reduces unnec-
essary braking.
∙ Safely monitoring traffic to anticipate changes in speed permits reduced
braking and smooth acceleration
changes.
∙ Select a gear range suitable to road conditions.
5. Use Cruise Control
∙ Using cruise control during highway driving helps maintain a steady speed. ∙ Cruise control is particularly effective
in providing fuel savings when driving
on flat terrains.
6. Plan for the Shortest Route
∙ Utilize a map or navigation system to determine the best route to save time.
7. Avoid Idling
∙ Shutting off your engine when safe for stops exceeding 30–60 seconds saves
fuel and reduces emissions.
8. Buy an Automated Pass for Toll Roads
∙ Automated passes permit drivers to use special lanes to maintain cruising
speed through the toll and avoid stop-
ping and starting.
9. Winter Warm Up
∙ Limit idling time to minimize impact to fuel economy.
∙ Vehicles typically need no more than 30 seconds of idling at start-up to ef-
fectively circulate the engine oil before
driving.
∙ Your vehicle will reach its ideal operat- ing temperature more quickly while
driving versus idling.
FUEL EFFICIENT DRIVING TIPS
5-172Starting and driving