wheel size NISSAN ALTIMA 2021 Owners Manual

∙ 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.

– When driving on roads where thetraveling lane merges or separates
or where there are temporary lane
markers because of road
construction
– When there is a lane closure due to road repairs
– When driving on a bumpy road sur- face, such as an uneven dirt road
– When driving on sharp curves or winding roads
– When driving on repeated uphill and downhill roads
∙ Do not use the Steering Assist under the following conditions because the
system will not operate properly:
– When driving with a tire that is not within normal tire conditions (for
example, tire wear, abnormal tire
pressure, installation of a spare
tire, tire chains, nonstandard
wheels)
– When the vehicle is equipped with non-original brake or suspension
parts – When an object such as a sticker or
cargo obstructs the camera
– When excessively heavy baggage is loaded in the rear seat or lug-
gage area of your vehicle
– When the vehicle load capacity is exceeded
– When towing a trailer or other vehicle
∙ Excessive noise will interfere with the warning chime sound, and the beep
may not be heard.
∙ For the ProPILOT Assist system to op- erate properly, the windshield in front
of the camera must be clean. Replace
worn wiper blades. The correct size
wiper blades must be used to help
make sure the windshield is kept
clean. Only use Genuine NISSAN wiper
blades, or equivalent wiper blades,
that are specifically designed for use
on your vehicle model and model
year. It is recommended that you visit
a NISSAN dealer for the correct parts
for your vehicle.Steering Assist temporary
standby
Automatic standby due to driving opera-
tion:
When the driver activates the turn signal,
the Steering Assist is temporarily placed in
a standby mode. (The Steering Assist re-
starts automatically when the operating
conditions are met again.)
Automatic standby:
In the following cases, a warning message
is displayed along with the chime, and the
Steering Assist is placed in a temporary
standby mode. (The Steering Assist re-
starts automatically when the operating
conditions are met again.)
∙ When lane markers on both sides are no longer detected
∙ When a vehicle ahead is no longer de- tected under approximately 37 mph
(60 km/h)
5-118Starting and driving

– When replacing tires, install thespecified size of tires on all four
wheels.
– When installing a spare tire, make sure that it is the proper size and
type as specified on the Tire and
Loading Information label. For ad-
ditional information, refer to “Tire
and Loading Information label” in
the “Technical and consumer infor-
mation” section of this manual.
– For additional information, refer to “Wheels and tires” in the “Do-it-
yourself ” section of this manual.
The ABS controls the brakes so the wheels
do not lock during hard braking or when
braking on slippery surfaces. The system
detects the rotation speed at each wheel
and varies the brake fluid pressure to pre-
vent each wheel from locking and sliding.
By preventing each wheel from locking, the
system helps the driver maintain steering
control and helps to minimize swerving
and spinning on slippery surfaces.
Using the system
Depress the brake pedal and hold it down.
Depress the brake pedal with firm steady
pressure, but do not pump the brakes. The Anti-lock Braking System will operate to
prevent the wheels from locking up. Steer
the vehicle to avoid obstacles.

DRAINING OF COOLANT WATER
If the vehicle is to be lef t outside without
antifreeze, drain the cooling system, includ-
ing the engine block. Refill before operating
the vehicle. For additional information, refer
to “Changing engine coolant” in the “Do-it-
yourself ” section of this manual.
TIRE EQUIPMENT
1. SUMMER tires have a tread designed toprovide superior performance on dry
pavement. However, the performance
of these tires will be substantially re-
duced in snowy and icy conditions. If
you operate your vehicle on snowy or
icy roads, NISSAN recommends the use
of MUD & SNOW or ALL SEASON TIRES
on all four wheels. It is recommended
that you visit a NISSAN dealer for the tire
type, size, speed rating and availability
information.
2. For additional traction on icy roads, studded tires may be used. However,
some U.S. states and Canadian prov-
inces prohibit their use. Check local,
state and provincial laws before install-
ing studded tires. Skid and traction capabilities of studded
snow tires on wet or dry surfaces may be
poorer than that of non-studded snow
tires.
3. Tire chains may be used. For additional information, refer to “Tire chains” in the
“Do-it-yourself ” section of this manual.
SPECIAL WINTER EQUIPMENT
It is recommended that the following items
be carried in the vehicle during winter:
∙ A scraper and stiff-bristled brush to re- move ice and snow from the windows
and wiper blades.
∙ A sturdy, flat board to be placed under the jack to give it firm support.
∙ A shovel to dig the vehicle out of snow- drif ts.
∙ Extra washer fluid to refill the windshield-washer fluid reservoir.
DRIVING ON SNOW OR ICE

and corrected as necessary. It is recom-
mended that you visit a NISSAN dealer for
this service.
All season tires
NISSAN specifies All Season tires on some
models to provide good performance all
year, including snowy and icy road condi-
tions. All Season tires are identified by ALL
SEASON and/or M&S on the tire sidewall.
Snow tires have better snow traction than
All Season tires and may be more appropri-
ate in some areas.
Summer tires
NISSAN specifies summer tires on some
models to provide superior performance
on dry roads. Summer tire performance is
substantially reduced in snow and ice.
Summer tires do not have the tire traction
rating “M&S” on the tire sidewall.
If you plan to operate your vehicle in snowy
or icy conditions, NISSAN recommends the
use of SNOW tires or ALL SEASON tires on all
four wheels.
Snow tires
If snow tires are needed, it is necessary to
select tires equivalent in size and load rat-
ing to the original equipment tires. If you donot, it can adversely affect the safety and
handling of your vehicle.
Generally, snow tires have lower speed rat-
ings than factory equipped tires and may
not match the potential maximum vehicle
speed. Never exceed the maximum speed
rating of the tire.
If you install snow tires, they must be the
same size, brand, construction and tread
pattern on all four wheels.
For additional traction on icy roads, stud-
ded tires may be used. However, some U.S.
states and Canadian provinces prohibit
their use. Check local, state and provincial
laws before installing studded tires. Skid
and traction capabilities of studded snow
tires on wet or dry surfaces may be poorer
than that of non-studded snow tires.
TIRE CHAINS

∙ The original tires have built-intread wear indicators. When the
wear indicators are visible, the
tire(s) should be replaced.
∙ Tires degrade with age and use. Have tires, including the spare,
over 6 years old checked by a
qualified technician because
some tire damage may not be
obvious. Replace the tires as
necessary to prevent tire failure
and possible personal injury.
∙ Improper service of the spare tire may result in serious per-
sonal injury. If it is necessary to
repair the spare tire, it is recom-
mended that you visit a NISSAN
dealer for this service.
∙ For additional information re- garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Information”
(Canada) in the Warranty Infor-
mation Booklet.
Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carry- ing capacity as originally equipped. For ad-
ditional information, refer to “Wheels and
tires” in the “Technical and consumer infor-
mation” section of this manual.

Armrests ...................1-7Automatic drive positioner. .3-32, 3-33, 3-34
Frontseats..................1-2
Manual front seat adjustment ......1-3
Rearseat...................1-5
Security indicator light ............2-17
Security system (NISSAN Vehicle Immobilizer
System), engine start ..........2-42,5-16
Security systems Vehicle security system .........2-40
Self-adjustingbrakes.............8-20
Service manual order form .........10-23
Servicing air conditioner ...........4-41
Shif ting Continuously Variable Transmission
(CVT) .....................5-21
Shiftleverlockrelease............5-23
Shoulder belt height adjustment ......1-19
Sonar Rear system ................5-175
Spark plug replacement ...........8-17
Spark plugs ...................8-17
Specifications ..................10-9
Speedometer ................2-4,2-5
Speedometer and odometer ........2-4
Spotlights(Seemaplight)..........2-66
SRS warning label ...............1-67
Stability control ................5-171
Standard maintenance . .9-10, 9-11, 9-14, 9-15
Starting Before starting the engine ........5-17
Jumpstarting.............6-9,8-15
Precautions when starting and
driving ..................5-4,5-11
Push starting ................6-11
Starting the engine ............5-17 Starting the engine
..............5-17
Steering Heated steering wheel ..........2-53
Powersteeringsystem.........5-168
Steering Assist switch
(forvehicleswithProPILOTAssist).....2-54
Steering wheel .................3-28
Stoplight....................8-26
Storage.....................2-58
Sunglasses case ................2-59
Sunglasses holder ..............2-59
Sunroof ......................7-5
Sunroof (see Moonroof ) ...........2-64
Sunvisors....................3-29
Supplemental air bag warning
light.................... .1-67, 2-15
Supplemental front impact air bag
system ..................... .1-54
Supplemental restraint system Information and warning labels . . . .1-67
Precautions on supplemental restraint
system ................... .1-46
Supplemental restraint system
(Supplemental air bag system) .......1-46
Switch Autolightswitch..............2-47
Automatic power window switch . . .2-63
Foglightswitch ..............2-51
Hazard warning flasher switch ......6-2
Headlight and turn signal switch ....2-45
Headlightcontrolswitch.........2-45
Instrument brightness control .....2-50
Power door lock switch ..........3-6
Rear window and outside mirror
defrosterswitch..............2-44
Turn signal switch .............2-50 T
Tachometer ...................2-6
Temperature gauge Engine coolant temperature gauge . .2-6
Thef t (NISSAN Vehicle Immobilizer System),
engine start ...............2-42,5-16
Three-waycatalyst...............5-4
Tilt T

elescopicsteering............3-28
Tire Flattire..................6-3,6-4
Spare tire ...............6-5,8-40
Tire and Loading Information label . .10-13
Tire chains .................8-36
Tire pressure ................8-29
Tirerotation.................8-37
Types of tires ................8-35
Uniform tire quality grading ......10-18
Wheels and tires ..............8-29
Wheel/tire size ...............10-10
Tire pressure Low tire pressure warning light .....2-12
Tire Pressure Monitoring System
(TPMS)....................5-5,6-3
Towing 4-wheel drive models ...........6-14
Flattowing.................10-18
Trailertowing...............10-18
Towingatrailer................10-18
Towingyourvehicle..............6-12
Traffic Sign Recognition (TSR) ........5-31
Transceiver HomeLink® Universal Transceiver . . .2-67, 2-68, 2-69, 2-70, 2-70, 2-71
11-6

TransmissionContinuously Variable Transmission (CVT)
fluid......................8-12
Driving with Continuously Variable
Transmission (CVT) ............5-18
Transmission shif t lever lock release . . .5-23
Travel (See registering a vehicle in another
country) .....................10-11
Trip odometer ...............2-4,2-5
Trunk access through the rear
seat.................... .1-5, 3-24
Trunklid.....................3-23
Trunk lid lock opener lever ..........3-23
Trunklight....................2-67
Turn signal switch ...............2-50
U
Uniform tire quality grading ........10-18
USB/iPod® Charging Ports .........4-42
V
Vanitymirror..................3-29
Variable voltage control system ......8-16
Vehicle dimensions and weights .....10-10
Vehicle Dynamic Control (VDC)
system .....................5-171
Vehicle identification .............10-11
Vehicle identification number (VIN) . . . .10-11
Vehicle identification number (VIN)
(Chassis number) ...............10-11
Vehicle identification number (VIN)
plate.......................10-11 Vehicle immobilizer system
......2-42,5-16
Vehicleinformationdisplay.........2-19
Vehicle loading information ........10-14
Vehiclerecovery................6-14
Vehicle security system ...........2-40
Vehicle security system (NISSAN Vehicle
Immobilizer System), engine start . .2-42, 5-16
Ventilators ...................4-28
Visors ......................3-29
W
Warning Airbagwarninglight ........1-67, 2-15
Anti-lock brake warning light ......2-10
Battery charge warning light ......2-11
Brakewarninglight ............2-11
Engine oil pressure warning light ....2-12
Hazard warning flasher switch ......6-2
Loose fuel cap warning .........2-35
Lowfuelwarninglight.......2-14,2-35
Lowtirepressurewarninglight.....2-12
Low windshield-washer fluid warning
light......................2-35
Seatbeltwarninglight.......1-14, 2-15
Supplemental air bag warning
light.................. .1-67, 2-15
TPMS......................2-4
Vehicle security system .........2-40
Warning/indicator lights and audible
reminders ..................2-15
Warning labels (for SRS) ..........1-67
Warning/indicator lights and audible
reminders ....................2-15
Audible reminders .............2-15 Indicatorlights...............2-15
Warninglights ...............2-15
Warninglights ................ .2-15
Warning lights, indicator lights and audible
reminders ....................2-9
Weights
(See dimensions and weights) .......10-10
Wheels and tires ................8-29
Wheel/tire size .................10-10
When traveling or registering in another
country .....................10-11
Windows.....................2-61 Locking passengers' windows .....2-63
Powerrearwindows...........2-63
Powerwindows ..............2-61
Rearpowerwindows...........2-63
Windshield-washer fluid ...........8-13
Windshield wiper blades ...........8-19
Wiper Wiper blades ................8-19
Wiper and washer switch ..........2-43
11-7