2019 NISSAN ALTIMA ECU

8. Af ter attaching the child restraint, testit before you place the child in it. Push it
from side to side while holding the child
restraint near the seat belt path. The
child restraint should not move more
than 1 inch (25 mm), from side to side.
Try to tug it forward and check to see if
the belt holds the restraint in place. If
the restraint is not secure, tighten the
seat belt as necessary, or put the re-
straint in another seat and test it again.
You may need to try a different child
restraint. Not all child restraints fit in all
types of vehicles. 9. Check to make sure the child restraint
is properly secured prior to each use. If
the seat belt is not locked, repeat
steps 4 through 8.
10. If the child restraint is installed in thefront passenger seat, place the ignition
switch in the ON position. The front
passenger air bag status light
should illuminate. If this light is not illu-
minated, refer to “Front passenger air
bag and status light” in this section.
Move the child restraint to another
seating position. Have the system
checked. It is recommended that you
visit a NISSAN dealer for this service.
Af ter the child restraint is removed and the
seat belt is fully retracted, the ALR mode
(child restraint mode) is canceled.
Forward-facing – step 8WRS0698
Forward-facing – step 10
LRS3091
Safety—Seats, seat belts and supplemental restraint system1-41

1Top tether strap
2Anchor point
Installing top tether strap
The child restraint top tether strap must be
used when installing the child restraint with
seat belts.
First, secure the child restraint with the seat
belt.Rear bench seat
OUTBOARD SEATING POSITIONS
1. Remove the head restraint/headrest and store it in a secure place. Be sure to
reinstall the head restraint/headrest
when the child restraint is removed.
For additional information about head
restraint/headrest adjustment, re-
moval and installation, refer to "Head
restraints/headrests" in this section.
2. Position the top tether strap
1over
the seatback.
3. Secure the tether strap to the tether anchor point
2as shown.
4. Tighten the tether strap according to the manufacturer’s instructions to re-
move any slack.
CENTER SEATING POSITION 1. Position the top tether strap
1over the
seatback.
2. Secure the tether strap to the tether anchor point
2as shown.
3. Tighten the tether strap according to the manufacturer’s instructions to re-
move any slack. If you have any questions when install-
ing a top tether strap, it is recommended
that you visit a NISSAN dealer for this
service.
WARNING
Child restraint anchorages are de-
signed to withstand only those loads
imposed by correctly fitted child re-
straints. Under no circumstances are
they to be used to attach adult seat
belts, or other items or equipment to
the vehicle. Doing so could damage the
child restraint anchorages. The child re-
straint will not be properly installed us-
ing the damaged anchorage, and a
child could be seriously injured or killed
in a collision.
BOOSTER SEATS
For additional information on installing a
booster seat in your vehicle, follow the in-
structions outlined in this section.
Rear bench seat
LRS3176
1-42Safety—Seats, seat belts and supplemental restraint system

1.If you must install a booster seat in
the front seat, move the seat to the
rearmost position.
2. Position the booster seat on the seat. Only place it in a front-facing direction.
Always follow the booster seat manu-
facturer’s instructions. 3. The booster seat should be positioned
on the vehicle seat so that it is stable.
If necessary, adjust or remove the head
restraint/headrest to obtain the cor-
rect high back booster seat fit. If the
head restraint/headrest is removed,
store it in a secure place. Be sure to
reinstall the head restraint/headrest
when the booster seat is removed.
For additional information about head
restraint/headrest adjustment, re-
moval and installation, refer to "Head
restraints/headrests" in this section. If the seating position does not have
an adjustable head restraint/headrest
and it is interfering with the proper
booster seat fit, try another seating
position or a different booster seat.
4. Position the lap portion of the seat belt low and snug on the child’s hips. Be
sure to follow the booster seat manu-
facturer’s instructions for adjusting the
seat belt routing.
5. Pull the shoulder belt portion of the seat belt toward the retractor to take
up extra slack. Be sure the shoulder
belt is positioned across the top,
middle portion of the child’s shoulder.
Be sure to follow the booster seat
manufacturer’s instructions for adjust-
ing the seat belt routing.
6. Follow the warnings, cautions and in- structions for properly fastening a seat
belt shown in “Three-point type seat
belt with retractor” in this section.
WRS0699Front passenger position
LRS0454
Safety—Seats, seat belts and supplemental restraint system1-45

Front passenger air bag
The front passenger air bag is designed to
automatically turn OFF when the vehicle is
operated under some conditions as de-
scribed below in accordance with U.S. regu-
lations. If the front passenger air bag is OFF,
it will not inflate in a crash. The driver air bag
and other air bags in your vehicle are not
part of this system.
The purpose of the regulation is to help
reduce the risk of injury or death from an
inflating air bag to certain front passenger
seat occupants, such as children, by requir-
ing the air bag to be automatically turned
OFF. Certain sensors are used to meet the
requirements.
The occupant classification sensor in this
vehicle is a weight sensor. It is designed to
detect an occupant and objects on the
seat by weight. For example, if a child is in
the front passenger seat, the NISSAN Ad-
vanced Air Bag System is designed to turn
the front passenger air bag OFF in accor-
dance with the regulations. Also, if a child
restraint of the type specified in the regula-
tions is on the seat, its weight and the
child’s weight can be detected and cause
the air bag to turn OFF.Front passenger seat adult occupants who
are properly seated and using the seat belt
as outlined in this manual should not
cause the front passenger air bag and pas-
senger knee air bag to be automatically
turned OFF. For small adults it may be
turned OFF, however if the occupant takes
his/her weight off the seat cushion (for ex-
ample, by not sitting upright, by sitting on
an edge of the seat, or by otherwise being
out of position), this could cause the sensor
to turn the air bag OFF. Always be sure to be
seated and wearing the seat belt properly
for the most effective protection by the
seat belt and supplemental air bag.
NISSAN recommends that pre-teens and
children be properly restrained in a rear
seat. NISSAN also recommends that ap-
propriate child restraints and booster
seats be properly installed in a rear seat. If
this is not possible, the occupant classifica-
tion sensor is designed to operate as de-
scribed above to turn the front passenger
air bag and passenger knee air bag OFF for
specified child restraints as required by the
regulations. Failing to properly secure child
restraints and to use the ALR mode may
allow the restraint to tip or move in a colli-
sion or sudden stop. This can also result in
the passenger air bag and passenger knee
air bag inflating in a crash instead of beingOFF. For additional information about
proper use and installation, refer to “Child
restraints” in this section.
If the front passenger seat is not occupied,
the front passenger air bag and passenger
knee air bag are designed not to inflate in a
crash. However, heavy objects placed on
the seat could result in air bag inflation,
because of the object’s weight detected by
the occupant classification sensor. Other
conditions could also result in air bag infla-
tion, such as if a child is standing on the
seat, or if two children are on the seat, con-
trary to the instructions in this manual. Al-
ways be sure that you and all vehicle occu-
pants are seated and restrained properly.
Using the front passenger air bag status
light, you can monitor when the front pas-
senger air bag and passenger knee air bag
are automatically turned OFF.
If an adult occupant is in the seat but the
front passenger air bag status light is illu-
minated (indicating that the front passen-
ger air bag and passenger knee air bag are
OFF), it could be that the person is a small
adult, or is not sitting on the seat properly
or not using the seat belt properly.
If a child restraint must be used in the front
seat, the front passenger air bag status
Safety—Seats, seat belts and supplemental restraint system1-57

2 Instruments and controls
Instrument panel................................2-2
Meters and gauges ..............................2-4
Speedometer and odometer .................2-4
Tachometer ..................................2-6
Engine coolant temperature gauge ..........2-6
Fuel gauge ................................... 2-7
Distance To Empty (DTE) ...................... 2-7
Variable Compression Turbo
(if so equipped) ...............................2-8
Warning lights, indicator lights and audible
reminders .......................................2-9
Checking lights .............................. 2-10
Warning lights ............................... 2-10
Indicator lights .............................. 2-15
Audible reminders ........................... 2-18
Vehicle information display .....................2-19
How to use the vehicle information
display ...................................... 2-19
Startup display .............................. 2-20
Resetting the drive computer ................2-20
Oil control system (if so equipped) ...........2-21
Settings ..................................... 2-21
Vehicle information display indicators .......2-29
Vehicle information display warnings ........2-32 Security systems
............................... 2-39
Vehicle security system .....................2-39
NISSAN Vehicle Immobilizer System .........2-40
Wiper and washer switch .......................2-42
Switch operation ............................ 2-42
Rear window and outside mirror
(if so equipped) defroster switch ................2-43
Headlight and turn signal switch ...............2-43
Headlight control switch .....................2-43
Daytime Running Lights (DRL) system
(Type A) (if so equipped) .....................2-48
LED Daytime Running Lights (DRL)
system (Type B) (if so equipped) .............2-48
Instrument brightness control ...............2-49
Turn signal switch ........................... 2-49
Fog light switch (if so equipped) .............2-50
Horn ........................................... 2-50
He

ated seat switches (if so equipped) ..........2-51
Heated steering wheel switch (if so equipped) . . 2-52
Steering Assist switch (for vehicles with
ProPILOT Assist) (if so equipped) ................2-52
E-call (SOS) button (if so equipped) .............2-53
Rear Door Alert ................................. 2-53
Power outlet .................................... 2-54

orAnti-lock Braking System
(ABS) warning lightPower steering warning lightHigh Beam Assist indicator light (green)
(if so equipped)
Automatic Emergency Braking (AEB)
system warning light (if so equipped)Rear Automatic Braking (RAB) warning
light (if so equipped)High beam indicator light (blue)
Automatic Emergency Braking (AEB) with
Pedestrian Detection system warning
light (if so equipped)Seat belt warning light and chimeMalfunction Indicator Light (MIL)
orBrake warning lightSupplemental air bag warning lightSecurity indicator light
Charge warning lightAutomatic brake hold indicator light
(green) (if so equipped)Side light and headlight indicator light
(green)
Electronic parking brake warning light
(yellow) (if so equipped)Automatic brake hold indicator light
(white) (if so equipped)Slip indicator light
Engine oil pressure warning lightorElectronic parking brake
indicator light (red)
(if so equipped)Turn signal/hazard indicator lights
Low tire pressure warning lightFront fog light indicator light
(if so equipped)Vehicle Dynamic Control (VDC) OFF
indicator light
Master warning lightFront passenger air bag status light
WARNING LIGHTS, INDICATOR LIGHTS
AND AUDIBLE REMINDERS
Instruments and controls2-9

Operation
The MIL will come on in one of two ways:∙ MIL on steady — An emission control system malfunction has been de-
tected. Check the fuel-filler cap if the
Loose Fuel Cap warning appears in the
vehicle information display. If the fuel-
filler cap is loose or missing, tighten or
install the cap and continue to drive the
vehicle. The
light should turn off
af ter a few driving trips. If the
light
does not turn off af ter a few driving
trips, have the vehicle inspected. It is
recommended that you visit a NISSAN
dealer for this service. You do not need
to have your vehicle towed to the
dealer.
∙
MIL blinking — An engine misfire has been
detected which may damage the emis-
sion control system. To reduce or avoid
emission control system damage:
– do not drive at speeds above 45 mph (72 km/h).
– avoid hard acceleration or decelera- tion.
– avoid steep uphill grades. – if possible, reduce the amount of
cargo being hauled or towed.
The MIL may stop blinking and come on
steady. Have the vehicle inspected. It is rec-
ommended that you visit a NISSAN dealer
for this service. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without
having the emission control system
checked and repaired as necessary
could lead to poor driveability, reduced
fuel economy, and possible damage to
the emission control system.
Security indicator light
This light blinks when the ignition switch is
placed in the OFF, LOCK or AUTO ACC posi-
tion.
The blinking security indicator light indi-
cates that the security systems equipped
on the vehicle are operational.
For additional information, refer to “Security
systems” in this section.
Side light and headlight indicator light (green)
The side light and headlight indicator light
illuminates when the side light or headlight
position is selected. For additional informa-
tion, refer to “Headlight and turn signal
switch” in this section.
Slip indicator light
This indicator light will blink when the Ve-
hicle Dynamic Control (VDC) system is op-
erating, thus alerting the driver to the fact
that the road surface is slippery and the
vehicle is nearing its traction limits.
You may feel or hear the system working;
this is normal.
The light will blink for a few seconds af ter
the VDC system stops limiting wheel spin.
The
indicator light also comes on
when you place the ignition switch in the
ON position. The light will turn off af ter ap-
proximately 2 seconds if the system is op-
erational. If the light does not come on
have the system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
Instruments and controls2-17

AWD Error: See Owner’s Manual (if so
equipped)
This warning appears when the all-wheel
drive system is not functioning properly
while the engine is running.
AWD High Temp. Stop vehicle (if so
equipped)
This warning may appear while trying to
free a stuck vehicle due to increased oil
temperature. The driving mode may
change to 2-Wheel Drive (2WD). If this warn-
ing is displayed, stop the vehicle with the
engine idling, as soon as it is safe to do so.
Then if the warning turns off, you can con-
tinue driving.
AWD Tire Size Incorrect: See Owner’s
Manual (if so equipped)
This warning may appear if there is a large
difference between the diameters of the
front and rear wheels. Pull off the road in a
safe area, with the engine idling. Check that
all the tire sizes are the same, that the tire
pressure is correct and that the tires are
not excessively worn.Your vehicle may have two types of security
systems:
∙ Vehicle security system
∙ NISSAN Vehicle Immobilizer System
VEHICLE SECURITY SYSTEM
The vehicle security system provides visual
and audible alarm signals if someone
opens the doors or trunk when the system
is armed. It is not, however, a motion detec-
tion type system that activates when a ve-
hicle is moved or when a vibration occurs.
The system helps deter vehicle thef t but
cannot prevent it, nor can it prevent the thef t of interior or exterior vehicle compo-
nents in all situations. Always secure your
vehicle even if parking for a brief period.
Never leave your keys in the vehicle, and
always lock the vehicle when unattended.
Be aware of your surroundings, and park in
secure, well-lit areas whenever possible.
Many devices offering additional protec-
tion, such as component locks, identifica-
tion markers, and tracking systems, are
available at auto supply stores and spe-
cialty shops. A NISSAN dealer may also offer
such equipment. Check with your insur-
ance company to see if you may be eligible
for discounts for various thef t protection
features.
How to arm the vehicle security
system
1. Close all windows and the moonroof.
The system can be armed even if the
windows and moonroof are open.
2. Remove the Intelligent Key from the ve- hicle.
3. Close all doors, hood and trunk. Lock all doors. The doors can be locked with
the Intelligent Key, door handle request
switch, power door lock switch or me-
chanical key (if so equipped).
LIC0301
SECURITY SYSTEMS
Instruments and controls2-39