2020 NISSAN ALTIMA maintenance

System maintenance........................ 5-38
Intelligent Lane Intervention (I-LI)
(if so equipped) ................................. 5-39
I-LI system operation ........................ 5-40
How to enable/disable the I-LI system .......5-41
I-LI system limitations .......................5-42
System temporarily unavailable .............5-43
System malfunction ......................... 5-44
System maintenance ........................ 5-44
Blind Spot Warning (BSW) (if so equipped) .......5-45
BSW system operation ......................5-46
How to enable/disable the BSW system .....5-48
BSW system limitations ......................5-48
BSW driving situations .......................5-49
System temporarily unavailable .............5-53
System maintenance ........................ 5-54
Rear Cross Traffic Alert (RCTA) (if so equipped) . . 5-55 RCTA system operation ......................5-56
How to enable/disable the RCTA
system ...................................... 5-58
RCTA system limitations .....................5-59
System temporarily unavailable .............5-61
System maintenance ........................ 5-62
Cruise control (if so equipped) ..................5-63Precautions on cruise control
................5-63
Cruise control operations ....................5-64
Intelligent Cruise Control (ICC) (for vehicles
without ProPILOT Assist) (if so equipped) ........5-66
How to select the cruise control mode ......5-68
Vehicle-to-vehicle distance control
mode ....................................... 5-68
Vehicle-to-vehicle distance control
mode operation ............................. 5-70
Vehicle-to-vehicle distance control
mode switches .............................. 5-71
Vehicle-to-vehicle distance control
mode limitations ............................ 5-78
System temporarily unavailable .............5-82
System maintenance ........................ 5-84
Conventional (fixed speed) cruise
c
ontrol mode ................................ 5-85
ProPILOT Assist (if so equipped) .................5-90
ProPILOT Assist system operation ...........5-92
Turning the conventional (fixed speed)
cruise control mode on ......................5-95
Operating ProPILOT Assist ...................5-96
How to enable/disable the Steering
Assist ...................................... 5-101

Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist)...........5-102
Steering Assist ............................. 5-113
Conventional (fixed speed) cruise
control mode ............................... 5-120
Rear Automatic Braking (RAB)
(if so equipped) ................................ 5-124
RAB system operation ......................5-125
Turning the RAB system on/off .............5-126
RAB system limitations .....................5-127
System malfunction ........................ 5-128
System maintenance ....................... 5-129
Automatic Emergency Braking (AEB) (if so
equipped) ..................................... 5-130
AEB system operation ......................5-131
Turning the AEB system on/off .............5-133
AEB system limitations .....................5-134
System temporarily unavailable ............5-135
System malfunction ........................ 5-136
System maintenance ....................... 5-136
Automatic Emergency Braking (AEB) with
Pedestrian Detection (if so equipped) ..........5-138
AEB with Pedestrian Detection system
operation ................................... 5-139Turning the AEB with Pedestrian
Detection system ON/OFF
.................5-141
AEB with Pedestrian Detection system
limitations .................................. 5-142
System temporarily unavailable ............5-144
System malfunction ........................ 5-145
System maintenance ....................... 5-146
Intelligent Forward Collision Warning (I-FCW) . . . 5-147 I-FCW system operation ....................5-150
Turning the I-FCW system on/off ...........5-151
I-FCW system limitations ...................5-152
System temporarily unavailable ............5-157
System malfunction ........................ 5-158
System maintenance ....................... 5-158
Intelligent Driver Alertness (I-DA) ...............5-159
Intelligent Driver Alertness system
operation ................................... 5-160
How

to enable/disable the Intelligent
Driver Alertness (I-DA) system ..............5-161
Intelligent Driver Alertness (I-DA)
system limitations .......................... 5-161
Break-in schedule ............................. 5-162
Fuel efficient driving tips .......................5-163
Increasing fuel economy ......................5-164

All-Wheel Drive (AWD) (if so equipped)..........5-164
Parking/parking on hills .......................5-167
Power steering ................................ 5-168
Brake system .................................. 5-169
Brake precautions .......................... 5-169
Anti-lock Braking System (ABS) .............5-169
Brake Assist ................................ 5-170
Vehicle Dynamic Control (VDC) system .........5-171
Brake force distribution .....................5-173
Chassis Control ............................... 5-174
Intelligent Trace Control (I-TC) ...............5-174
Active Ride Control (ARC) ...................5-174
Hill start assist system ......................... 5-174
Rear Sonar System (RSS) (if so equipped) ......5-175
System operation .......................... 5-176
How to enable/disable the sonar
system ..................................... 5-178Sonar limitations
........................... 5-179
System temporarily unavailable ............5-179
System maintenance ....................... 5-180
Cold weather driving .......................... 5-180
Freeing a frozen door lock ..................5-180
Antifreeze .................................. 5-180
Battery..................................... 5-180
Draining of coolant water ...................5-181
Tire equipment ............................. 5-181
Special winter equipment ..................5-181
Driving on snow or ice ......................5-181
Engine block heater (if so equipped) ........5-182
Active noise cancellation/Active sound
enhancement (if so equipped) .................5-183
Active noise cancellation ...................5-183
Active sound enhancement ................5-183

∙ Do not stop or park the vehicle overflammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire.
CAUTION
∙ Do not use leaded gasoline. Depositsfrom leaded gasoline will seriously re-
duce 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 no-
ticeable loss of performance or other
unusual operating conditions are de-
tected. Have the vehicle inspected
promptly. It is recommended that you
visit a NISSAN dealer for this service.
∙ Avoid driving with an extremely low fuel level. Running out of fuel could
cause the engine to misfire, damag-
ing 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
Monitoring 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 pos-
sible, and inflate them to the proper pres-
sure. 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. Please note that the TPMS is not a substi-
tute for proper tire maintenance, and it is
the driver’s responsibility to maintain cor-
rect tire pressure, even if under-inflation
has not reached the level to trigger illumi-
nation 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 illu-
minated. This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists. When the malfunc-
tion 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, includ-
ing the installation of replacement or alter-
nate tires or wheels on the vehicle that
prevent the TPMS from functioning prop-
erly. Always check the TPMS malfunction
telltale af ter 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.
Starting and driving5-5

∙ Failure to operate this vehicle cor-rectly could result in loss of control
and/or a rollover accident.
∙ Always use tires of the same type, size, brand, construction (bias, bias-
belted, or radial), and tread pattern on
all four wheels. Install tire chains on
the front wheels when driving on slip-
pery roads and drive carefully.
∙ Be sure to check the brakes immedi- ately af ter driving in mud or water. For
additional information, refer to “Brake
precautions” in this section.
∙ Avoid parking your vehicle on steep hills. If you get out of the vehicle and it
rolls forward, backward or sideways,
you could be injured.
∙ Whenever you drive off-road through sand, mud or water as deep as the
wheel hub, more frequent mainte-
nance may be required. For additional
information, refer to “Maintenance
under severe operating conditions” in
the “Maintenance and schedules” sec-
tion of this manual.WARNING
Do not operate the push-button igni-
tion switch while driving the vehicle ex-
cept in an emergency. (The engine will
stop when the ignition switch is pushed
three consecutive times in quick suc-
cession or the ignition switch is pushed
and held for more than 2 seconds.) If the
engine stops while the vehicle is being
driven, this could lead to a crash and
serious injury.
When the ignition switch is pushed without
depressing the brake pedal, the ignition
switch will illuminate.
Push the ignition switch center:∙ Once to change to ON.
∙ Two times to change to OFF.
The ignition switch will automatically re-
turn to the LOCK position when any door is
either opened or closed with the switch in
the OFF position.
LSD2645
PUSH-BUTTON IGNITION SWITCH
Starting and driving5-13

SYSTEM MAINTENANCE
The TSR system uses the same multi-
sensing front camera unit that is used by
the Lane Departure Warning (LDW) system,
located in front of the interior rearview mir-
ror. For additional information, refer to ”Sys-
tem maintenance” in the “Lane Departure
Warning (LDW)” section.
WARNING
Failure to follow the warnings and in-
structions for proper use of the LDW
system could result in serious injury or
death.
∙ This system is only a warning deviceto inform the driver of a potential un-
intended lane departure. It will not
steer the vehicle or prevent loss of
control. It is the driver’s responsibility
to stay alert, drive safely, keep the ve-
hicle in the traveling lane, and be in
control of the vehicle at all times. The LDW system will operate when the ve-
hicle is driven at speeds of approximately
37 mph (60 km/h) and above, and only
when the lane markings are clearly visible
on the road.
The LDW system monitors the lane mark-
ers on the traveling lane using the camera
unit
Alocated above the inside mirror.
The LDW system warns the driver that the
vehicle is beginning to leave the driving
lane with an indicator and a steering wheel
vibration. For additional information, refer
to “LDW system operation” in this section.
LSD3213
LANE DEPARTURE WARNING (LDW) (if
so equipped)
5-34Starting and driving

When the interior temperature is reduced,
the LDW system will resume operating au-
tomatically.
The LDW system is not designed to warn
under the following conditions:∙ When you operate the lane change sig- nal and change traveling lanes in the
direction of the signal. (The LDW system
will become operable again approxi-
mately 2 seconds af ter the lane change
signal is turned off.)
∙ When the vehicle speed lowers to less than approximately 37 mph (60 km/h).
Af ter the above conditions have finished
and the necessary operating conditions
are satisfied, the LDW functions will resume.
SYSTEM MALFUNCTION
If the LDW system malfunctions, it will can-
cel automatically and “Not Available Sys-
tem Malfunction” will appear in the vehicle
information display. If “Not Available Sys-
tem Malfunction” appears in the vehicle in-
formation display, pull off the road to a safe
location and stop the vehicle. Place the
shif t lever in the P (Park) position and the
ignition switch in the OFF position and re-
start the engine/motor. If “Not Available
System Malfunction” continues to appear in the vehicle information display, have the
system checked. It is recommended that
you visit a NISSAN dealer for this service.
SYSTEM MAINTENANCE
The lane camera unit1for the LDW sys-
tem is located above the inside mirror. To
keep the proper operation of the LDW sys-
tem and prevent a system malfunction, be
sure to observe the following:
∙ Always keep the windshield clean.
∙ Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit.
LSD3484
5-38Starting and driving

Temporary disabled status at high tem-
perature:
If the vehicle is parked in direct sunlight
under high temperature conditions (over
approximately 104°F [40°C]) and then the
I-LI system is turned on, the I-LI system
may be deactivated automatically and the
following message will appear on the ve-
hicle information display: “Unavailable: High
Cabin Temperature.” When the interior
temperature is reduced, the system will re-
sume operating automatically.
SYSTEM MALFUNCTION
If the I-LI system malfunctions, it will cancel
automatically. The LDW indicator (orange)
will illuminate in the display. If the LDW indi-
cator (orange) illuminates in the display,
pull off the road to a safe location and stop
the vehicle. Turn the engine/motor off and
restart the engine/motor. If the LDW indica-
tor (orange) continues to illuminate, have
the I-LI system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.SYSTEM MAINTENANCE
The lane camera unit1for the I-LI system
is located above the inside mirror. To keep
the proper operation of the I-LI system and
prevent a system malfunction, be sure to
observe the following:
∙ Always keep the windshield clean.
∙ Do not attach a sticker (including trans- parent material) or install an accessory
near the camera unit. ∙ Do not place reflective materials, such
as white paper or a mirror, on the instru-
ment panel. The reflection of sunlight
may adversely affect the camera unit’s
capability of detecting the lane mark-
ers.
∙ Do not strike or damage the areas around the camera unit. Do not touch
the camera lens or remove the screw
located on the camera unit. If the cam-
era unit is damaged due to an accident,
it is recommended that you visit a
NISSAN dealer.
LSD3484
5-44Starting and driving