2019 NISSAN FRONTIER ECU

Follow these steps to install a booster seat
in the rear seat or in the front passenger
seat: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 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 ad-
ditional information, refer to “Head
restraints/headrests” in this section.
WRS0699Front passenger position
LRS0454
1-70Safety—Seats, seat belts and supplemental restraint system

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 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 ad-
ditional information, refer to “Head
restraint/headrest” 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.
PRECAUTIONS ON SRS
This SRS section contains important infor-
mation concerning the following systems:
∙ Driver and front passenger supplemen- tal front-impact air bag (NISSAN Ad-
vanced Air Bag System)
∙ Front seat-mounted side-impact supplemental air bag
∙ Roof-mounted curtain side-impact and rollover supplemental air bag
∙ Seat belt with pretensioner(s) (front seats)
Supplemental front-impact air bag system
The NISSAN Advanced Air Bag System can
help cushion the impact force to the head
and chest of the driver and front passenger
in certain frontal collisions.
Front seat-mounted side-impact
supplemental air bag system
This system can help cushion the impact
force to the chest area of the driver and
front passenger in certain side-impact col-
lisions. The side air bags are designed to
inflate on the side where the vehicle is im-
pacted.
LRS0539
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS)
Safety—Seats, seat belts and supplemental restraint system1-73

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.
One sensor used is the occupant classifi-
cation sensor (pressure sensor). It is in the
bottom of the front passenger seat cush-
ion and is designed to detect an occupant
and objects on the seat by weight. It works
together with seat belt sensors described
in this section. 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 causethe air bag to turn OFF. Occupant classifi-
cation sensor operation can vary depend-
ing on the front passenger seat belt sen-
sors.
The front passenger seat belt sensors are
designed to detect if the seat belt is buck-
led and the amount of tension on the seat
belt, such as when it is in the Automatic
Locking Retractor (ALR) mode (child re-
straint mode). Based on the weight on the
seat detected by the occupant classifica-
tion sensor and the belt tension detected
on the seat belt, the NISSAN Advanced Air
Bag System determines whether the front
passenger air bag should be automatically
turned OFF as required by the regulations.
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 to be
automatically turned OFF. For small adults
it may be turned OFF, however, if the occu-
pant does not sit in the seat properly (for
example, 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. In addition, if the
occupant improperly uses the seat belt in
the ALR mode, this could cause the air bag
to be turned OFF. Always be sure to beseated 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 and seat belt sensors are de-
signed to operate as described above to
turn the front passenger 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 inflating in a crash
instead of being OFF. For additional infor-
mation, refer to “Child restraints” in this sec-
tion.
If the front passenger seat is not occupied,
the front passenger air bag is 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 de-
tected by the occupant classification sen-
sor. Other conditions could also result in air
bag inflation, such as if a child is standing
on the seat, or if two children are on the
1-84Safety—Seats, seat belts and supplemental restraint system

2 Instruments and controls
Instrument panel................................2-2
Meters and gauges ..............................2-3
Speedometer and odometer .................2-4
Tachometer ..................................2-6
Engine coolant temperature gauge ..........2-6
Fuel gauge ................................... 2-7
Distance To Empty (DTE) ...................... 2-7
Engine oil pressure gauge
(if so equipped) ...............................2-8
Voltmeter (if so equipped) ....................2-9
Trip computer (if so equipped) ................2-9
Compass and outside temperature display
(if so equipped) ................................. 2-10
Outside temperature display .................2-11
Compass ..................................... 2-11
Warning lights, indicator lights and audible
reminders ...................................... 2-14
Checking lights .............................. 2-15
Warning lights ............................... 2-15
Indicator lights .............................. 2-20Audible reminders
........................... 2-24
Security systems (if so equipped) ...............2-24
Vehicle security system (if so equipped) .....2-24
NISSAN Vehicle Immobilizer System
(if so equipped) .............................. 2-26
Wiper and washer switch .......................2-27
Switch operation ............................ 2-27
Rear window or outside mirror defroster
switch (if so equipped) .......................... 2-28
Headlight and turn signal switch ...............2-29
Headlight control switch .....................2-29
Daytime Running Lights (DRL) system
(if so equipped) .............................. 2-31
Instrument brightness control ...............2-32
Turn signal switch ........................... 2-32
Fog light switch (if so equipped) .............2-32
Horn ........................................... 2-33
Cargo lamp switch ............................. 2-33
Heated seat switches (if so equipped) ..........2-34
Vehicle Dynamic Control (VDC) OFF switch ......2-35

4WD warning light (model)Low windshield-washer fluid warning light
(if so equipped)Malfunction Indicator Light (MIL)
orAnti-lock Braking System
(ABS) warning lightSeat belt warning light and chimeOverdrive OFF indicator light
(if so equipped)
Automatic transmission oil temperature
warning light (if so equipped)Supplemental air bag warning lightSecurity indicator light (if so equipped)
Automatic transmission park warning
light (model)4WD shif t indicator light (model)SET indicator light
orBrake warning lightAutomatic transmission position
indicator light (if so equipped)Slip indicator light
Charge warning lightCRUISE indicator lightTransfer 4LO position indicator light
(model)
Door open warning lightElectronic locking rear differential (E-Lock)
system ON indicator light (if so equipped)Turn signal/hazard indicator lights
Engine oil pressure warning lightFront passenger air bag status lightVehicle Dynamic Control (VDC) OFF
indicator light
Low fuel warning lightHigh beam indicator light (blue)
Low tire pressure warning lightHill descent control system ON indicator
light (if so equipped)
WARNING LIGHTS, INDICATOR LIGHTS
AND AUDIBLE REMINDERS
2-14Instruments and controls

If the ABS warning light illuminates while
the engine is running or while driving, it
may indicate the ABS is not functioning
properly. Have the system checked. It is
recommended that you visit a NISSAN
dealer for this service.
If an ABS malfunction occurs, the anti-lock
function is turned off. The brake system
then operates normally but without anti-
lock assistance. For additional information,
refer to “Brake system” in the “Starting and
driving” section of this manual.
Automatic transmission oiltemperature warning light
(if so equipped)
This light comes on when the automatic
transmission oil temperature is too high. If
the light comes on while driving, reduce the
vehicle speed as soon as safely possible
until the light turns off.
CAUTION
Continued vehicle operation when the
A/T oil temperature warning light is on
may damage the automatic
transmission.
Automatic transmissionpark warning light (
model)
WARNING
∙ If the ATP light is ON, this indicates that the automatic transmission P
(Park) position will not function and
the transfer case is in neutral.
∙ When parking, always make sure that the 4WD shif t indicator light illumi-
nates and the parking brake is set.
Failure to engage the transfer posi-
tion in 2WD, 4H or 4LO could result in
the vehicle moving unexpectedly, re-
sulting in serious personal injury or
property damage.
∙ Shif t the 4WD switch into the 2WD, 4H or 4LO position again to turn off the
ATP warning light when the shif t lever
is in the P position and the ATP warn-
ing light is ON. (Before shif ting the
4WD switch into the 4LO position,
move the shif t lever into the N posi-
tion once, shif t the shif t lever into P
again and make sure the ATP warning
light is OFF.) This light indicates that the automatic
transmission parking function is not en-
gaged. If the transfer control is not secured
in any drive position while the shif t lever is
in the P (Park) position, the transmission will
disengage and the drive wheels will not
lock.orBrake warning
light
This light functions for both the parking
brake and the foot brake systems.
Parking brake indicator
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 ap-
plied, stop the vehicle and perform the fol-
lowing:
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.
2-16Instruments and controls

2. If the brake fluid level is correct, havethe warning system checked. It is rec-
ommended that you visit a NISSAN
dealer for this service.
WARNING
∙ Your brake system may not be work-ing properly if the warning light is on.
Driving could be dangerous. If you
judge it to be safe, drive carefully to
the nearest service station for repairs.
Otherwise, have your vehicle towed
because driving it could be
dangerous.
∙ Pressing the brake pedal with the en- gine stopped and/or a low brake fluid
level may increase your stopping dis-
tance and braking will require greater
pedal effort as well as pedal travel.
∙ If the brake fluid level is below the MINIMUM or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked. It is
recommended that you visit a NISSAN
dealer for this service.
Charge warning light
If this light comes on while the engine is
running, it may indicate the charging sys-
tem is not functioning properly. Turn the
engine off and check the generator belt. If
the belt is loose, broken, or missing, or if the
light remains on, have the system checked.
It is recommended that you visit a NISSAN
dealer for this service.
CAUTION
∙ Do not ground electrical accessoriesdirectly to the battery terminal. Doing
so will bypass the variable voltage
control system and the vehicle bat-
tery may not charge completely. For
additional information, refer to “Vari-
able voltage control system” in the
“Do-it-yourself ” section of this
manual.
∙ Do not continue driving if the genera- tor belt is loose, broken or missing.
Door open warning light
This light comes on when any of the doors
are not closed securely while the ignition
switch is in the ON position.
Engine oil pressure
warning light
This light warns of low engine oil pressure. If
the light flickers or comes on during nor-
mal driving, pull off the road in a safe area,
stop the engine immediatelyand call a
NISSAN dealer or other authorized repair
shop.
The engine oil pressure warning light is
not designed to indicate a low oil level.
Use the dipstick to check the oil level. For
additional information, refer to “Engine oil”
in the “Do-it-yourself ” section of this
manual.
CAUTION
Running the engine with the engine oil
pressure warning light on could cause
serious damage to the engine almost
immediately. Such damage is not cov-
ered by the NISSAN New Vehicle Limited
Warranty. Turn off the engine as soon as
it is safe to do so.
Instruments and controls2-17

∙If the light does not illuminate with the
ignition switch placed in the ON posi-
tion, have the vehicle checked as soon
as possible. It is recommended that you
visit a NISSAN dealer for this service.
∙If the light illuminates while driving,
avoid sudden 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 in-
crease the likelihood of tire failure. Se-
rious vehicle damage could occur and
may lead to an accident and could re-
sult in serious personal injury or death.
Check the tire pressure for all four tires.
Adjust the tire pressure to the recom-
mended COLD tire pressure show on
the Tire and Loading Information label
located in the driver’s door opening to
turn the low tire pressure warning light
off. If the light still illuminates while
driving af ter adjusting the tire pres-
sure, a tire may be flat or the TPMS may
be malfunctioning. If you have a flat
tire, replace it with a spare tire as soon
as possible. If no tire is flat and all tires
are properly inflated, have the vehicle
checked. It is recommended that you
visit a NISSAN dealer for this service.
∙ When replacing a wheel without theTPMS such as the spare tire, the TPMS
will not function and the low tire pres-
sure warning light will flash for ap-
proximately 1 minute. The light will re-
main on af ter 1 minute. Have your
tires replaced and/or TPMS system
reset as soon as possible. It is recom-
mended that you visit a NISSAN dealer
for these services.
∙ Replacing tires with those not origi- nally specified by NISSAN could affect
the proper operation of the TPMS.
CAUTION
∙ The TPMS is not a substitute for theregular tire pressure check. Be sure to
check the tire pressure regularly.
∙ If the vehicle is being driven at speeds of less than 16 mph (25 km/h), the
TPMS may not operate correctly.
∙ Be sure to install the specified size of tires to the four wheels correctly.
Low windshield-washer
fluid warning light (if so
equipped)
This light comes on when the windshield-
washer fluid is at a low level. Add
windshield-washer fluid as necessary. For
additional information, refer to “Windshield-
washer fluid” in the “Do-it-yourself ” section
of this manual.
Seat belt warning light andchime
The light and chime remind you to fasten
your seat belts. The light illuminates when-
ever the ignition switch is placed in the ON
or START position and remains illuminated
until the driver’s seat belt is fastened. At the
same time, the chime sounds for about
6 seconds unless the driver’s seat belt is
securely fastened.
The seat belt warning light may also illumi-
nate if the front passenger’s seat belt is not
fastened when the front passenger’s seat
is occupied. For 7 seconds af ter the ignition
switch is placed in the ON position, the sys-
tem does not activate the warning light for
the front passenger.
Instruments and controls2-19