2021 NISSAN ALTIMA service indicator

Brake warning
light (red)2
or
Electronic parking
brake warning
light (yellow) (if so
equipped)3
orBrake warning light (red)
orElectronic parking
brake warning light
(yellow) (if so equipped)
WARNING LIGHTS
orBrake warning
light (red)
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator (if so equipped)
When the ignition switch is placed in the ON
position, the light comes on when the park-
ing brake is applied.
Low brake fluid warning light
When the ignition switch is placed in the ON
position, the light warns of a low brake fluid
level. If the light comes on while the engine is
running with the parking brake not applied,
stop the vehicle and perform the following:
1. Check the brake fluid level. Add brake
fluid as necessary. For additional infor-
mation, refer to “Brake fluid” in the “Do-
it-yourself ” section of this manual.2. If the brake fluid level is correct, have
the warning system checked. It is rec-
ommended that you visit a NISSAN
dealer for this service.

Fail-safe
If the vehicle is driven under extreme
conditions, such as excessive wheel
spinning and subsequent hard braking,
the fail-safe system may be activated.
The Malfunction Indicator Light (MIL)
may come on to indicate the fail-safe
mode is activated. For additional infor-
mation, refer to “Malfunction Indicator
Light (MIL)” in the “Instruments and con-
trols” section of this manual. This will oc-
cur even if all electrical circuits are func-
tioning properly. In this case, place the
ignition switch in the OFF position and
wait for 10 seconds. Then push the
switch back to the ON position. The ve-
hicle should return to its normal operat-
ing condition. If it does not return to its
normal operating condition, have the
transmission checked. It is recom-
mended that you visit a NISSAN dealer
for this service.

If it is not possible to set or the indicator
stays on, it may indicate that the system
is malfunctioning. Although the vehicle
is still drivable under normal conditions,
have the vehicle checked. It is recom-
mended that you visit a NISSAN dealer
for this service.

∙ 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