2021 INFINITI Q50 Owner's Manual

5 Starting and driving
Precautions when starting and driving ...................... 5-4Exhaust gas (carbon monoxide) .............................. 5-4
Three-way catalyst ..................................................... 5-5
Tire Pressure Monitoring System (TPMS) ........... 5-5
Avoiding collision and rollover ................................. 5-9
Off-road recovery ....................................................... 5-9
Rapid air pressure loss ............................................... 5-9
Drinking alcohol/drugs and driving ..................... 5-10
Intelligent All-Wheel Drive (AWD) driving
safety precautions (AWD models) ....................... 5-10
Push-button ignition switch ........................................ 5-11 Operating range for engine start function ........ 5-12
Push-button ignition switch operation ............... 5-12
Push-button ignition switch positions ................ 5-13
Emergency engine shut off .................................... 5-13
Intelligent Key battery discharge .......................... 5-14
Before starting the engine ........................................... 5-14
Starting the engine ......................................................... 5-15 Remote engine start (if so equipped) .................. 5-15
Driving the vehicle .......................................................... 5-16
Automatic transmission ........................................... 5-16
Parking brake .................................................................. 5-20
INFINITI Drive Mode Selector .................................... 5-21
STANDARD mode .................................................... 5-22
SPORT+ mode (if so equipped) ............................. 5-22 SPORT mode ............................................................ 5-22
SNOW mode ............................................................ 5-22
ECO mode ................................................................. 5-22
PERSONAL mode ................................................... 5-24
Active Lane Control (if so equipped) ........................ 5-25 Active Lane Control operation ............................ 5-27
Turning Active Lane Control ON/OFF ............ 5-28
How to enable/disable Active
Lane Control ............................................................. 5-29
Active Lane Control limitations ......................... 5-30
System temporarily unavailable .......................... 5-31
System malfunction ................................................ 5-31
System maintenance .............................................. 5-32
Lane Departure Warning (LDW)/Lane Departure
Prevention (LDP) (if so equipped) ............................. 5-33 LDW system operation ......................................... 5-34
How to enable/disable the LDW system ........ 5-35
LDP system operation (if so equipped) ............ 5-35
Turning the LDP system ON/OFF (if
so equipped) ............................................................. 5-36
How to enable/disable the LDP system (if
so equipped) ............................................................. 5-37
LDW/LDP system limitations ............................. 5-37
System temporarily unavailable .......................... 5-38
System malfunction ................................................ 5-39

System maintenance ................................................ 5-39
Blind Spot Warning (BSW) (if so equipped) ........... 5-40 BSW system operation ............................................ 5-42
How to enable/disable the BSW system ........... 5-42
BSW system limitations .......................................... 5-42
BSW driving situations ............................................ 5-43
System temporarily unavailable ............................ 5-46
System malfunction .................................................. 5-46
System maintenance ................................................ 5-47
Blind Spot Intervention
®(BSI) (if so equipped) ..... 5-48
BSI system operation ............................................... 5-49
Turning the BSI system ON/OFF ........................ 5-51
How to enable/disable the BSI system .............. 5-51
BSI system limitations ............................................. 5-51
BSI driving situations ............................................... 5-53
System temporarily unavailable ............................ 5-58
System malfunction .................................................. 5-58
System maintenance ................................................ 5-59
Back-up Collision Intervention (BCI) (if
so equipped) .................................................................... 5-60 BCI system operation .............................................. 5-62
Turning the BCI system ON/OFF ........................ 5-65
BCI system limitations ............................................. 5-66
System temporarily unavailable ............................ 5-67
System malfunction .................................................. 5-68
System maintenance ................................................ 5-68
Cruise control (if so equipped) .................................... 5-69
Precautions on cruise control ................................ 5-69 Cruise control operations ..................................... 5-70
Intelligent Cruise Control (ICC) (if so equipped) .... 5-71 How to select the cruise control mode ............. 5-73
Vehicle-to-vehicle distance control mode ....... 5-73
Conventional (fixed speed) cruise
control mode ............................................................ 5-87
Distance Control Assist (DCA) (if so equipped) .... 5-91 DCA system operation .......................................... 5-93
Turning the DCA system ON/OFF .................... 5-96
How to enable/disable the DCA system ......... 5-97
DCA system display and indicators ................... 5-97
DCA system limitations ......................................... 5-98
System temporarily unavailable ....................... 5-100
System malfunction ............................................. 5-101
System maintenance ........................................... 5-101
Forward Emergency Braking (FEB) ....................... 5-102 FEB system operation ........................................ 5-103
Turning the FEB system ON/OFF ................. 5-105
FEB system limitations ....................................... 5-105
System temporarily unavailable ....................... 5-107
System malfunction ............................................. 5-108
System maintenance ........................................... 5-108
Predictive Forward Collision
Warning (PFCW) ......................................................... 5-109
PFCW system operation ..................................... 5-111
Turning the PFCW system ON/OFF .............. 5-112
PFCW system limitations ................................... 5-114
System temporarily unavailable ........................ 5-116
System malfunction .............................................. 5-117

System maintenance .............................................. 5-117
Break-in schedule ......................................................... 5-118
Fuel Efficient Driving Tips .......................................... 5-118
Increasing fuel economy ............................................. 5-119
Intelligent All-Wheel Drive (AWD) (if
so equipped) .................................................................. 5-120
Parking/parking on hills .............................................. 5-122
Power steering .............................................................. 5-123 Electric power steering type ................................ 5-123
Direct Adaptive Steering type ............................. 5-123
Brake system .................................................................. 5-125
Braking precautions ................................................ 5-125
Parking brake break-in .......................................... 5-126
Brake assist .................................................................... 5-126
Brake assist ............................................................... 5-126
Anti-lock Braking System (ABS) ......................... 5-126
Vehicle Dynamic Control (VDC) system ................ 5-128 Brake force distribution ........................................ 5-128
Active trace control ...................................................... 5-129 Hill Start Assist system .............................................. 5-131
Chassis control .............................................................. 5-131
Sonar system (if so equipped) .................................. 5-132
Sonar system settings ......................................... 5-133
Sonar indicator ...................................................... 5-134
Cold weather driving .................................................. 5-134 Freeing a frozen door lock ................................ 5-134
Antifreeze ............................................................... 5-134
Battery .................................................................... 5-134
Draining of coolant water ................................. 5-134
Tire equipment ...................................................... 5-134
Special winter equipment ................................... 5-135
Driving on snow or ice ......................................... 5-135
Engine block heater (if so equipped) ............... 5-135
Active noise cancellation/Active
sound enhancement ................................................... 5-136 Active noise cancellation ..................................... 5-137
Active sound enhancement ................................ 5-137

5-4Starting and driving
WARNING
.Do not leave children or adults who
would normally require the support
of others alone in your vehicle. Pets
should not be left alone either. They
could accidentally injure themselves
or others through inadvertent opera-
tion of the vehicle. Also, on hot,
sunny days, temperatures in a closed
vehicle could quickly become high
enough to cause severe or possibly
fatal injuries to people or animals.
. Closely supervise children when they
are around cars to prevent them from
playing and becoming locked in the
trunk where they could be seriously
injured. Keep the car locked, with the
rear seatback and trunk lid securely
latched when not in use, and prevent
children’s access to car keys.
EXHAUST GAS (carbon monoxide)
WARNING
.Do not breathe exhaust gases; they
contain colorless and odorless carbon
monoxide. Carbon monoxide is dan-
gerous. It can cause unconsciousness
or death.
. If you suspect that exhaust fumes are
entering the vehicle, drive with all
windows fully open, and have the
vehicle inspected immediately.
. Do not run the engine in closed spaces
such as a garage.
. Do not park the vehicle with the
engine running for any extended
length of time.
. Keep the trunk lid closed while driv-
ing, otherwise exhaust gases could be
drawn into the passenger compart-
ment. If you must drive with the
trunk lid open, follow these precau-
tions:
1) Open all the windows.
2) Set the air recirculation to off and the fan control to high to circulate
the air. .
If electrical wiring or other cable
connections must pass to a trailer
through the seal on the trunk lid or
the body, follow the manufacturer’s
recommendation to prevent carbon
monoxide entry into the vehicle.
. The exhaust system and body should
be inspected by a qualified mechanic
whenever:
— The vehicle is raised for service.
— You suspect that exhaust fumes are entering into the passenger
compartment.
— You notice a change in the sound of the exhaust system.
— You have had an accident invol- ving damage to the exhaust sys-
tem, underbody, or rear of the
vehicle.
PRECAUTIONS WHEN STARTING
AND DRIVING

THREE-WAY CATALYST
The three-way catalyst is an emission con-
trol device installed in the exhaust system.
Exhaust gases in the three-way catalyst are
burned at high temperatures to help reduce
pollutants.
WARNING
.The exhaust gas and the exhaust
system are very hot. Keep people,
animals or flammable materials away
from the exhaust system compo-
nents.
. 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.
CAUTION
.Do not use leaded gasoline. Deposits
from leaded gasoline seriously reduce
the three-way catalyst’s ability to
help reduce exhaust pollutants.
. Keep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if
noticeable loss of performance or
other unusual operating conditions
are detected. Have the vehicle in-
spected promptly. It is recommended
you visit an INFINITI retailer for this
service.
. Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the three-way catalyst.
. Do not race the engine while warming
it up.
. Do not push or tow your vehicle to
start the engine.
TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.) As an added safety feature, your vehicle has
been equipped with a Tire Pressure Mon-
itoring System (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
For models with run-flat tires, if the vehicle
is being driven with one or more flat tires,
the low tire pressure warning light will
illuminate continuously and a chime will
sound for 10 seconds. The flat tire warning
will also appear in the vehicle information
display. The chime will only sound at the first
indication of a flat tire, and the warning light
will illuminate continuously. When the flat
tire warning is activated, it is recommended
you have the system reset and the tire
checked and replaced if necessary by an
INFINITI retailer. Even if the tire is inflated
to the specified COLD tire pressure, the
warning light will continue to illuminate until
the system is reset by an INFINITI retailer.
Your vehicle can be driven for a limited time
on a flat tire. See “Run-flat tires” (P.8-32).
Starting and driving5-5

5-6Starting and driving
Please note that the TPMS is not a sub-
stitute for proper tire maintenance, and it is
the driver’s responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously illumi-
nated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS
to continue to function properly.Additional information
.Since the spare tire (if so equipped) is not
equipped with the TPMS, the TPMS
does not monitor the tire pressure of
the spare tire.
. The TPMS will activate only when the
vehicle is driven at speeds above 16
MPH (25 km/h). Also, this system may
not detect a sudden drop in tire pressure
(for example a flat tire while driving).
. The low tire pressure warning light does
not automatically turn off when the tire
pressure is adjusted. After the tire is
inflated to the recommended pressure,
the vehicle must be driven at speeds
above 16 MPH (25 km/h) to activate the
TPMS and turn off the low tire pressure
warning light. Use a tire pressure gauge
to check the tire pressure.
. The “Tire Pressure Low - Add Air”
warning appears in the vehicle informa-
tion display when the low tire pressure
warning light is illuminated and low tire
pressure is detected. The “Tire Pressure
Low - Add Air” warning turns off when
the low tire pressure warning light turns
off.
The “Tire Pressure Low - Add Air”
warning does not appear if the low tire
pressure warning light illuminates to
indicate a TPMS malfunction. .
The “Flat Tire - Visit dealer” warning (if
so equipped) appears in the vehicle
information display when the low tire
pressure warning light is illuminated and
one or more flat tires are detected.
. Tire pressure rises and falls depending on
the heat caused by the vehicle’s opera-
tion and the outside temperature. Do not
reduce the tire pressure after driving
because the tire pressure rises after
driving. Low outside temperature can
lower the temperature of the air inside
the tire which can cause a lower tire
inflation pressure. This may cause the
low tire pressure warning light to illumi-
nate. If the warning light illuminates in
low ambient temperature, check the tire
pressure for all four tires.
. You can also check the pressure of all
tires (except the spare tire) in the vehicle
information display. (See “Vehicle infor-
mation display” (P.2-18).)
. After the ignition switch is placed in the
ON position, it may take a period of time
for the tire pressure to be displayed while
the vehicle is driven. Depending on the
radio wave circumstance, tire pressure
may not correctly be displayed.
For additional information, see “Low tire
pressure warning light” (P.2-13) and “Tire
Pressure Monitoring System (TPMS)” (P.6-
3).

WARNING
.Radio waves could adversely affect
electric medical equipment. Those
who use a pacemaker should contact
the electric medical equipment man-
ufacturer for the possible influences
before use.
. If the low tire pressure warning light
illuminates while driving, avoid sud-
den steering maneuvers or abrupt
braking, reduce vehicle speed, pull
off the road to a safe location and
stop the vehicle as soon as possible.
Driving with under-inflated tires may
permanently damage the tires and
increase the likelihood of tire failure.
Serious vehicle damage could occur
and may lead to an accident and
could result in serious personal injury.
Check the tire pressure for all four
tires. Adjust the tire pressure to the
recommended COLD tire pressure
shown on the Tire and Loading
Information label to turn the low tire
pressure warning light OFF. If the
light still illuminates while driving
after adjusting the tire pressure, a
tire may be flat or the TPMS may be
malfunctioning. If you have a flat tire,
replace it with a spare tire (if so equipped) as soon as possible. If no
tire is flat and all tires are properly
inflated, it is recommended you con-
sult an INFINITI retailer.
. For models with run-flat tires,
although you can continue driving
with a punctured run-flat tire, re-
member that vehicle handling stabi-
lity is reduced, which could lead to an
accident and personal injury. Also,
driving a long distance at high speeds
may damage the tires.
— Do not drive at speeds above 50 MPH (80 km/h) and do not drive
more than approximately 93 miles
(150 km) with a punctured run-
flat tire. The actual distance the
vehicle can be driven on a flat tire
depends on outside temperature,
vehicle load, road conditions and
other factors.
— If you detect any unusual sounds or vibrations while driving with a
punctured run-flat tire, pull off
the road to a safe location and
stop the vehicle as soon as possi-
ble. The tire may be seriously
damaged and need to be replaced.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the TPMS will not function and the low
tire pressure warning light will flash
for approximately 1 minute. The light
will remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.
. Replacing tires with those not origin-
ally specified by INFINITI could affect
the proper operation of the TPMS.
. Do not inject any tire liquid or aerosol
tire sealant into the tires, as this may
cause a malfunction of the tire pres-
sure sensors.
CAUTION
.The TPMS may not function properly
when the wheels are equipped with
tire chains or the wheels are buried in
snow.
. Do not place metalized film or any
metal parts (antenna, etc.) on the
windows. This may cause poor recep-
tion of the signals from the tire
pressure sensors, and the TPMS will
not function properly.
Starting and driving5-7

5-8Starting and driving
Some devices and transmitters may tem-
porarily interfere with the operation of the
TPMS and cause the low tire pressure
warning light to illuminate. Some examples
are:
.Facilities or electric devices using similar
radio frequencies are near the vehicle.
. If a transmitter set to similar frequencies
is being used in or near the vehicle.
. If a computer (or similar equipment) or a
DC/AC converter is being used in or near
the vehicle.
Low tire pressure warning light may illumi-
nate in the following cases.
. If the vehicle is equipped with a wheel
and tire without TPMS.
. If the TPMS has been replaced and the ID
has not been registered.
. If the wheel is not originally specified by
INFINITI.
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 (2)
this device must accept any interference
received, including interference that may
cause undesired operation. NOTE:
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s authority
to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions:
1.
This device may not cause interference,
and
2. This device must accept any interfer-
ence, include interference that may
cause undesired operation of the device.
TPMS with Tire Inflation Indicator
When adding air to an under-inflated tire,
the TPMS with Tire Inflation Indicator
provides visual and audible signals outside
the vehicle to help you inflate the tires to the
recommended COLD tire pressure.
Vehicle set-up:
1. Park the vehicle in a safe and level place.
2. Apply the parking brake and place the
shift lever in the P (Park) position.
3. Place the ignition switch in the ON position. Do not start the engine. Operation:
1. Add air to the tire.
2. After a few seconds, the hazard indica- tors will start flashing.
3. When the designated pressure is reached, the horn beeps once and the
hazard indicators stop flashing.
4. Perform the above steps for each tire.
. If the tire is over-inflated more than
approximately 4 psi (30 kPa), the horn
beeps and the hazard indicators flash 3
times. To correct the pressure, push the
core of the valve stem on the tire briefly
to release pressure. When the pressure
reaches the designated pressure, the
horn beeps once.
. If the hazard indicator does not flash
within approximately 15 seconds after
starting to inflate the tire, it indicates
that the Tire Inflation Indicator is not
operating.
. The TPMS will not activate the Tire
Inflation Indicator under the following
conditions:
— If there is interference from an ex- ternal device or transmitter
— The air pressure from the inflation device such as those using a power
socket is not sufficient to inflate the
tire