Vdc INFINITI Q50 2021 Owner's Guide

For details about the VDC system, see
“Vehicle Dynamic Control (VDC) system”
(P.5-128)
. When the VDC or ABS (including the
traction control system) operates
. When the INFINITI Drive Mode Selector
is turned to the SNOW mode (To use the
DCA system, turn the INFINITI Drive
Mode Selector to a mode other than the
SNOW mode, then turn on the dynamic
driver assistance switch
.) For details
about the INFINITI Drive Mode Selector,
see “INFINITI Drive Mode Selector” (P.5-
21)
. When the radar signal is temporarily
interrupted
Action to take:
When the conditions listed above are no
longer present, turn the DCA system back on
to use the system.
Condition B
Under the following conditions, making it
impossible to detect a vehicle ahead, the
DCA system is automatically canceled.
The chime will sound, the driver assist
system forward indicator (orange) and the
“front radar obstruction” warning message
will appear in the vehicle information display.
. When the radar sensor area of the front bumper is covered with dirt or is ob-
structed
Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
stop the vehicle in a safe place, place the
shift lever in the P (Park) position and turn
the engine off. When the radar signal is
temporarily interrupted, clean the sensor
area of the front bumper and restart the
engine. If the warning message continues to
be displayed, have the DCA system checked.
It is recommended 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 DCA system will resume automatically.SYSTEM MALFUNCTION
When the DCA system is not operating
properly, the chime sounds, the driver assist
system forward indicator (orange) and the
system “malfunction” warning message will
appear in the vehicle information display. Action to take:
If the driver assist system forward indicator
(orange) and the warning message appear,
stop the vehicle in a safe place and place the
shift lever in the P (Park) position. Turn the
engine off, restart the engine, and turn on
the DCA system again.
If it is not possible to set the system or the
indicator stays on, it may indicate that the
system is malfunctioning. Although the
vehicle is still driveable under normal con-
ditions, have the vehicle checked. It is
recommended you visit an INFINITI retailer
for this service.
SYSTEM MAINTENANCE
The sensor for the DCA system is common
with the Intelligent Cruise Control (ICC)
system and is located behind the lower grille
of the front bumper.
For the sensor maintenance, see “Intelligent
Cruise Control (ICC)” (P.5-71).
FCC Notice:
For USA:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1.
This device may not cause harmful
interference, and
Starting and driving5-101

5-124Starting and driving
have control of the vehicle, but the
steering will be harder to operate.
. If wheels or tires other than the
INFINITI recommended ones are
used, Direct Adaptive Steering may
not operate properly and the power
steering warning light may illumi-
nate.
. Do not modify the vehicle’s suspen-
sion. If suspension parts such as
shock absorbers, struts, springs, sta-
bilizer bars, bushings and wheels are
not INFINITI recommended for your
vehicle or are extremely deteriorated,
Direct Adaptive Steering may not
operate properly and the power
steering warning light may illumi-
nate.
. Do not modify the vehicle’s steering.
If steering parts are not INFINITI
recommended for your vehicle or are
extremely deteriorated, Direct Adap-
tive Steering may not operate prop-
erly and the power steering warning
light may illuminate.
. If the VDC warning light illuminates,
the power steering warning light may
also illuminate at the same time. Stop
the vehicle in a safe location, turn the
engine off and restart the engine. If
the power steering warning light continues to illuminate, have the
system checked. It is recommended
you visit an INFINITI retailer for this
service. For VDC system, see “Vehicle
Dynamic Control (VDC) system”
(P.5-128).
CAUTION
.
Do not place the ignition switch is in
the ON position while the steering
wheel or a tire is removed.
. Do not turn the steering wheel as
much as possible while the ignition
switch is in any position other than
the ON position.
. Installing an accessory on the steer-
ing wheel, or changing the steering
wheel, may reduce the steering per-
formance.
Direct Adaptive Steering is designed to
control the steering force and steering angle
according to the vehicle speed and amount
of turning of the steering wheel.
The steering characteristic can be selected
using the INFINITI Drive Mode Selector. See
“INFINITI Drive Mode Selector” (P.5-21).
If the VDC system is turned off, the setting of steering becomes standard mode.
If the power steering warning light illumi-
nates while the engine is running, it may
indicate that Direct Adaptive Steering is not
functioning properly and may need servicing.
It is recommended you have the system
checked by an INFINITI retailer. (See “Power
steering warning light” (P.2-16).)
When the power steering warning light
illuminates with the engine running, the
power assist for the steering will cease
operation. You will still have control of the
vehicle. However, greater steering effort will
be needed, especially in sharp turns and at
low speeds.
If Direct Adaptive Steering is malfunction-
ing, the steering wheel may turn slightly even
when driving on a straight road.
Under the following conditions, the steering
wheel may turn slightly even when driving on
a straight road. This is due to a protection
mechanism for Direct Adaptive Steering. The
steering wheel will return to the normal
position after the protection mechanism is
deactivated.
Condition A
.
When the engine is stalled or likely to be
stalled
. When the steering wheel is held in the full
lock position or when the front tire
touches an obstruction.

5-128Starting and driving
The Vehicle Dynamic Control (VDC) system
uses various sensors to monitor driver inputs
and vehicle motion. Under certain driving
conditions, the VDC system helps to perform
the following functions.
.Controls brake pressure to reduce wheel
slip on one slipping drive wheel so power
is transferred to a non slipping drive
wheel on the same axle.
. Controls brake pressure and engine out-
put to reduce drive wheel slip based on
vehicle speed (traction control function).
. Controls brake pressure at individual
wheels and engine output to help the
driver maintain control of the vehicle in
the following conditions:
— understeer (vehicle tends to not follow the steered path despite increased
steering input)
— oversteer (vehicle tends to spin due to certain road or driving conditions).
The VDC system can help the driver to
maintain control of the vehicle, but it cannot
prevent loss of vehicle control in all driving
situations.
When the VDC system operates, the VDC
warning light
in the instrument panel
flashes so note the following:
. The road may be slippery or the system
may determine some action is required to
help keep the vehicle on the steered path. .
You may feel a pulsation in the brake
pedal and hear a noise or vibration from
under the hood. This is normal and
indicates that the VDC system is working
properly.
. Adjust your speed and driving to the road
conditions.
See “Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-17).
If a malfunction occurs in the system, the
VDC warning light
illuminates in the
instrument panel. The VDC system automa-
tically turns off.
The VDC OFF switch is used to turn off the
VDC system. The VDC off indicator light
illuminates to indicate the VDC system is off.
When the VDC switch is used to turn off the
system, the VDC system still operates to
prevent one drive wheel from slipping by
transferring power to a non slipping drive
wheel. The VDC warning light
flashes if
this occurs. All other VDC functions are off,
except for brake force distribution, and the
VDC warning light
will not flash. The
VDC system is automatically reset to on
when the ignition switch is placed in the off
position then back to the on position.
See “Vehicle Dynamic Control (VDC) warn-
ing light” (P.2-17) and “Vehicle Dynamic
Control (VDC) off indicator light” (P.2-16).
The computer has a built-in diagnostic feature that tests the system each time you
start the engine and move the vehicle
forward or in reverse at a slow speed. When
the self-test occurs, you may hear a “clunk”
noise and/or feel a pulsation in the brake
pedal. This is normal and is not an indication
of a malfunction.
VDC operation is reduced when the INFINITI
Drive Mode Selector is used to select the
SPORT+ mode (if so equipped). The VDC
system may not operate in the same circum-
stances when compared to operation in the
standard mode. To help prevent accidents
drive carefully, avoid careless or dangerous
driving techniques and be especially careful
when driving and cornering on slippery
surfaces.
BRAKE FORCE DISTRIBUTION
During braking while driving through turns,
the system optimizes the distribution of
force to each of the four wheels depending
on the radius of the turn.
WARNING
.
The VDC system is designed to help
the driver maintain stability but does
not prevent accidents due to abrupt
steering operation at high speeds or
by careless or dangerous driving
VEHICLE DYNAMIC CONTROL
(VDC) SYSTEM

techniques. Reduce vehicle speed and
be especially careful when driving and
cornering on slippery surfaces and
always drive carefully.
. The brake force distribution system
may not be effective depending on
the driving condition. Always drive
carefully and attentively.
. Do not modify the vehicle’s suspen-
sion. If suspension parts such as
shock absorbers, struts, springs, sta-
bilizer bars, bushings and wheels are
not INFINITI recommended for your
vehicle or are extremely deteriorated,
the VDC system may not operate
properly. This could adversely affect
vehicle handling performance, and
the VDC warning light
may
illuminate.
. If brake related parts such as brake
pads, rotors and calipers are not
INFINITI recommended or are extre-
mely deteriorated, the VDC system
may not operate properly and the
VDC warning light
may illumi-
nate.
. If engine control related parts are not
INFINITI recommended or are extre-
mely deteriorated, the VDC warning
light
may illuminate. .
When driving on extremely inclined
surfaces such as higher banked cor-
ners, the VDC system may not oper-
ate properly and the VDC warning
light
may illuminate. Do not drive
on these types of roads.
. When driving on an unstable surface
such as a turntable, ferry, elevator or
ramp, the VDC warning light
may
illuminate. This is not a malfunction.
Restart the engine after driving onto
a stable surface.
. If wheels or tires other than the
INFINITI recommended ones are
used, the VDC system may not oper-
ate properly and the VDC warning
light
may illuminate.
. The VDC system is not a substitute
for winter tires or tire chains on a
snow covered road. This system senses driving based on the
driver’s steering and acceleration/braking
patterns, and controls brake pressure at
individual wheels to help smooth vehicle
response.
When the SPORT mode is selected by the
INFINITI Drive Mode Selector, the amount
of brake control provided by the active trace
control is reduced.
When the PERSONAL mode is selected, the
active trace control can be set to ON
(enabled) or OFF (disabled). See “INFINITI
Drive Mode Selector” (P.5-21).
When the VDC OFF switch is used to turn
off the VDC system, the active trace control
is also turned off.
Starting and driving5-129
ACTIVE TRACE CONTROL

designed specifically for vehicle recovery.
Always follow the manufacturer’s instruc-
tions for the recovery device.
Rocking a stuck vehicle
If your vehicle is stuck in sand, snow, mud,
etc., use the following procedure:
1. Turn off the Vehicle Dynamic Control(VDC) system.
2. Make sure the area in front and behind the vehicle is clear of obstructions.
3. Turn the steering wheel right and left to clear an area around the front tires.
4. Slowly rock the vehicle forward and backward.
.Shift back and forth between R (Re-verse) and D (Drive).
.Apply the accelerator as little aspossible to maintain the rocking mo-
tion.
.Release the accelerator pedal before shifting between R and D.
.Do not spin the tires above 35 MPH(55 km/h).
5. If the vehicle cannot be freed after a few tries, contact a professional towing
service to remove the vehicle.
WARNING
.Stand clear of a stuck vehicle.
. Do not spin your tires at high speed.
This could cause them to explode and
result in serious injury. Parts of your
vehicle could also overheat and be
damaged.
In case of emergency6-11

Sunglasses holder ................................................ 2-49
Supplemental air bag warning labels ............. 1-60
Supplemental air bag warning light ... 1-60, 2-12
Supplemental restraint system ........................ 1-42Precautions on supplemental
restraint system ............................................. 1-42
Switch
Autolight switch ............................................. 2-36
Emergency Call (SOS) button .................... 2-46
Fog light switch ............................................. 2-42
Hazard warning flasher switch .................... 6-2
Headlight switch ............................................ 2-35
Ignition switch ................................................ 5-16
Power door lock switch ................................. 3-5
Rear window and outside mirror
defroster switch ............................................. 2-35
Turn signal switch ......................................... 2-41
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42
T
Tachometer ............................................................. 2-8
Temperature gaugeEngine coolant temperature gauge ............ 2-8
Theft (INFINITI Vehicle Immobilizer System) Engine start ..................................................... 2-31
Thigh extension ....................................................... 1-5
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-27
Tire
Flat Tire - Visit dealer warning ................. 2-22 Run-flat tires .................................................... 6-4
Tire replacement indicator .......................... 2-25
Tire rotation ................................................... 8-34
Tire pressure
Low tire pressure warning light ................ 2-13
Tire Pressure Low - Add Air warning ........... 2-22
Tires
Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-25
Run-flat tires .................................................. 8-32
Tire and Loading
information label ............................. 8-27, 10-13
Tire chains ........................................................ 8-33
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-25
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-25
Types of tires .................................................. 8-31
Uniform tire quality grading .................... 10-20
Wheel/tire size ............................................... 10-9
Wheels and tires ............................................ 8-25
Towing Flat towing ................................................... 10-20
Tow truck towing ............................................ 6-8
Towing a trailer ........................................... 10-20
TPMS Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-25
TPMS, Tire pressure monitoring system TPMS with Tire Inflation Indicator ............ 5-8 Trailer towing .................................................... 10-20
Transceiver
HomeLink
®Universal Transceiver ............ 2-59
Transmission
Automatic Transmission Fluid (ATF) ......... 8-9
Driving with automatic transmission ....... 5-16
Transmission shift lever lock release ....... 5-19
Transmitter (See remote keyless
entry system) ........................................................ 3-15
Traveling or registering in
another country ................................................. 10-11
Trip computer ....................................................... 2-27
Trip odometer ....................................................... 2-27
Trunk Interior trunk lid release .............................. 3-24
Light .................................................................. 2-59
Pass-through ..................................................... 1-7
Trunk hooks .................................................... 2-51
Trunk lid ........................................................... 3-22
Trunk lid release switch ............................... 3-23
Trunk open request switch ......................... 3-23
Trunk release power cancel switch .......... 3-24
Turn signal switch ............................................... 2-41
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading .......................... 10-20
11-7

11-8
V
Vanity mirror ......................................................... 3-32
Vanity mirror lights ............................................. 2-58
Variable voltage control system ..................... 8-13
VehicleDimensions ................................................... 10-10
Recovery (freeing a stuck vehicle) ............ 6-10
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42
Vehicle dynamic control
(VDC) system ............................................... 5-128
Vehicle Dynamic Control (VDC)
warning light ................................................... 2-17
Vehicle identification number (VIN) ............. 10-11
Vehicle information display .............................. 2-18
Vehicle loading information ............................ 10-17
Vehicle security system ...................................... 2-30
Vehicle speedAverage speed ............................ 2-27
Ventilators ............................................................. 4-35
W
Warning Flat Tire - Visit dealer warning ................. 2-22
Hazard warning flasher switch .................... 6-2
Indicators for operation (vehicle
information display) ...................................... 2-21
Power steering warning light ..................... 2-16
Predictive Forward Collision
Warning (PFCW) ........................................ 5-109 Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-25
Vehicle information display ........................ 2-18
Warning lights, indicator lights and
audible reminders .......................................... 2-10
Warning labels
Air bag warning labels ................................. 1-60
Warning light Air bag warning light ........................ 1-60, 2-12
Anti-lock braking system (ABS)
warning light ................................................... 2-13
Brake warning light ....................................... 2-11
Forward Emergency Braking (FEB)
system warning light .................................... 2-13
Low fuel warning light ................................. 2-13
Low tire pressure warning light ................ 2-13
Seat belt warning light
and chime ............................................. 1-14, 2-12
Warranty
Emission control system warranty ........ 10-21
Washer switch
Wiper and washer switch ........................... 2-32
Washing .................................................................... 7-2
Waxing ....................................................................... 7-2
Welcome light and farewell light function .... 3-10
Wheel/tire size ..................................................... 10-9
Wheels and tires .................................................. 8-25 Care of wheels .................................................. 7-3
Cleaning aluminum alloy wheels .................. 7-3
Cleaning bright wheels .................................. 7-4
Window washer fluid ......................................... 8-10 Window(s)
Cleaning ............................................................... 7-3
Power windows ............................................. 2-52
Wiper
Rain-sensing auto wiper system ............... 2-34
Wiper and washer switch ........................... 2-32
Wiper blades ................................................... 8-15
Wiper and washer switch ................................. 2-32