2019 NISSAN FRONTIER check engine

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

For additional information, refer to “Seat
belts” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
Supplemental air bagwarning light
When the ignition switch is placed in the ON
or START position, the supplemental air
bag warning light illuminates for about
7 seconds and then turns off. This means
the system is operational.
If any of the following conditions occur, the
front air bag, side air bag, curtain air bag,
and pretensioner seat belt systems need
servicing:
∙ The supplemental air bag warning light remains on af ter approximately 7 sec-
onds.
∙ The supplemental air bag warning light flashes intermittently.
∙ The supplemental air bag warning light does not come on at all.
It is recommended that you visit a NISSAN
dealer for these services.
Unless checked and repaired, the supple-
mental restraint system (air bag system)
and/or the pretensioner(s) may not func- tion properly. For additional information, re-
fer to “Supplemental Restraint System
(SRS)” in the “Safety—Seats, seat belts and
supplemental restraint system” section of
this manual.
WARNING
If the supplemental air bag warning
light is on, it could mean that the front
air bag, side air bag, curtain air bag
and/or pretensioner systems will not
operate in an accident. To help avoid
injury to yourself or others, have your
vehicle checked as soon as possible. It is
recommended that you visit a NISSAN
dealer for this service.
INDICATOR LIGHTS
This vehicle has various indicator lights
that may illuminate to indicate a system
status. For additional information, refer to
the specific light in this section.
4WD shif t indicator light
(
model)
The light should turn off within 1 second
af ter placing the ignition switch in the ON
position. While the engine is running, the 4WD shif t
indicator light will illuminate the position
selected by the 4WD shif t switch.
The 4WD shif t indicator light may blink
while shif ting from one drive mode to
the other.
Automatic transmission
position indicator light (if
so equipped)
For additional information, refer to “Driving
the vehicle” in the “Starting and driving” sec-
tion of this manual.
CRUISE indicator light
The light comes on when the cruise control
ON/OFF switch is pushed. The light goes
out when the ON/OFF switch is pushed
again. When the CRUISE indicator light
comes on, the cruise control system is op-
erational. For additional information, refer
to “Cruise control” in the “Starting and driv-
ing” section of this manual.
2-20Instruments and controls

Electronic locking reardifferential (E-Lock) system
ON indicator light (if so
equipped)
This light comes on when the electronic
locking rear differential (E-Lock) system
clutch is fully engaged.
The indicator light flashes when the sys-
tem is first turned on. When the system fully
engages, the light remains on. If the switch
is on and the indicator light continues to
flash, the system is not engaged.
For additional information, refer to “Electronic
locking rear differential (E-Lock) system
switch” in this section and “Electronic locking
rear differential (E-Lock) system” in the “Start-
ing and driving” section of this manual.
Front passenger air bagstatus light
The front passenger air bag status
light
will be lit and the passenger front
air bag will be off depending on how the
front passenger seat is being used.
For additional information, refer to “Front
passenger air bag and status light” in the
“Safety — Seats, seat belts and supplemen-
tal restraint system” section of this manual.
High beam indicator light
(blue)
This blue light comes on when the head-
light high beams are on and goes out when
the low beams are selected.
The high beam indicator light also comes
on when the passing signal is activated.
Hill descent control systemON indicator light (if so
equipped)
When the ignition switch is placed in the ON
position, this light comes on briefly and
then turns off.
The light comes on when the hill descent
control system is activated.
If the hill descent control switch is on and
the indicator light blinks, the system is not
engaged.
If the indicator light does not come on when
the hill descent switch is on, the system may
not be functioning properly. Have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
For additional information, refer to “Hill de-
scent control switch” in this section and “Hill descent control system” in the “Starting
and driving” section of this manual.
Malfunction Indicator Light
(MIL)
If this indicator light comes on steady or
blinks while the engine is running, it may
indicate a potential emission control mal-
function.
The MIL may also come on steady if the
fuel-filler cap is loose or missing, or if the
vehicle runs out of fuel. Check to make sure
the fuel-filler cap is installed and closed
tightly, and that the vehicle has at least
3 gal (11.4 L) of fuel in the fuel tank.
Af ter a few driving trips, the
light
should turn off if no other potential emis-
sion control system malfunction exists.
If this indicator light comes on steady for
20 seconds and then blinks for 10 seconds
when the engine is not running, it indicates
that the vehicle is not ready for an emission
control system inspection/maintenance
test. For additional information, refer to
“Readiness for inspection/maintenance
(I/M) test” in the “Technical and consumer
information” section of this manual.
Instruments and controls2-21

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 trip computer. 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 recom-
mended 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.
Overdrive OFF indicator
light (if so equipped)
This light comes on when the overdrive
function is off.
The automatic transmission overdrive
function is controlled by the overdrive OFF
switch.
When the ignition switch is placed in the ON
position, the light comes on for about
2 seconds. If the light comes on at any
other time, it may indicate the automatic
transmission system is not functioning
properly. Have the system checked. It is
recommended that you visit a NISSAN
dealer for this service. For additional information, refer to “Driving
the vehicle” in the “Starting and driving” sec-
tion of this manual.
Security indicator light (if
so equipped)
This light blinks when the ignition switch is
in the OFF, LOCK or ACC position. This func-
tion indicates the security systems
equipped on the vehicle are operational.
For additional information, refer to “Security
systems” in this section.
SET indicator light
The light comes on while the vehicle speed
is controlled by the cruise control system. If
the light blinks while the engine is running,
it may indicate the cruise control system is
not functioning properly. Have the system
checked. It is recommended that you visit a
NISSAN dealer for this service.
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.
2-22Instruments and controls

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.
Transfer 4LO position
indicator light (
model)
This light comes on when the 4WD shif t
switch is set in the 4LO position with the
ignition switch in the ON position.
The transfer case may be damaged if you
shif t the switch while driving.
Make sure the transfer 4LO position indica-
tor light turns on when you shif t the 4WD
shif t switch to 4LO.
The indicator light may blink while shif t-
ing from one drive mode to the other. The 4LO indicator light must stop blinking
and remain illuminated or turn off before
shif ting the transmission into gear. If the
shif t lever is shif ted from the N (Neutral)
position to any other gear when the 4LO
indicator light is blinking, the vehicle may
move unexpectedly.
When you shif t between 4H and 4LO, follow
the instructions below:
∙ For automatic transmission (A/T) mod- els, stop the vehicle and shif t the shif t
lever to the N (Neutral) position with the
brake pedal depressed, then depress
and turn the 4WD shif t switch to 4LO or
4H.
∙ For manual transmission (M/T) models, stop the vehicle and shif t the shif t lever
to the N (Neutral) position with the
clutch pedal depressed, then depress
and turn the 4WD shif t switch to 4LO or
4H.
You cannot move the transfer 4WD shif t
switch between 4H and 4LO unless you
stop the vehicle and shif t the shif t lever to
the N position with the brake pedal (A/T
models) or clutch pedal (M/T models) de-
pressed.
Turn signal/hazard indicator lights
The appropriate light flashes when the turn
signal switch is activated.
NOTE:
In case of turn signal light bulb malfunc-
tion, the turn signal will flash at a higher
frequency when the turn signal switch is
activated.
Both lights flash when the hazard switch is
turned on.
Vehicle Dynamic Control(VDC) OFF indicator light
This indicator light comes on when the
VDC OFF switch is pushed to the OFF posi-
tion, the transfer case is in the 4LO position
(
model), or when the VDC system
is not functioning properly. This indicates
the VDC system is not operating.
Push the VDC OFF switch again or restart
the engine and the system will operate
normally. For additional information, refer
to “Vehicle Dynamic Control (VDC) system”
in the “Starting and driving” section of this
manual.
Instruments and controls2-23

The front seats are warmed by built-in
heaters.1. Place the ignition switch in the ON or START position.
2. Push the LO or HI position of the switch, as desired, depending on the tempera-
ture. The indicator light in the switch
will illuminate.
The heater is controlled by a thermo-
stat, automatically turning the heater
on and off. The indicator light will re-
main on as long as the switch is on. 3. When the seat is warmed or before you
leave the vehicle, be sure to turn the
switch off.
WARNING
Do not use or allow occupants to use
the seat heater if you or the occupants
cannot monitor elevated seat tempera-
tures or have an inability to feel pain in
body parts that contact the seat. Use of
the seat heater by such people could
result in serious injury.
CAUTION
∙ Do not use the seat heater for ex-tended periods or when no one is us-
ing the seat.
∙ Do not put anything on the seat which insulates heat, such as a blanket,
cushion, seat cover, etc. Otherwise,
the seat may become overheated.
∙ Do not place anything hard or heavy on the seat or pierce it with a pin or
similar object. This may result in dam-
age to the heater.
∙ Any liquid spilled on the heated seat should be removed immediately with
a dry cloth. ∙ When cleaning the seat, never use
gasoline, benzine, thinner, or any
similar materials.
∙ If any malfunctions are found or the heated seat does not operate, turn
the switch off and have the system
checked. It is recommended that you
visit a NISSAN dealer for this service.
∙ The battery could run down if the seat heater is operated while the engine is
not running.LIC3762
HEATED SEAT SWITCHES (if so
equipped)
2-34Instruments and controls

WARNING
Pay special attention to your surround-
ings when using the clutch interlock
switch. The vehicle will move forward or
backward according to the gear
selected.
The clutch interlock (clutch start) switch
allows for starting the engine without de-
pressing the clutch pedal. This feature
helps you restart the engine if it stops un-
der difficult conditions. (For example, the
engine stops on a steep hill and a slight
movement forward or backward might be
dangerous.) To use the clutch interlock switch:
1. Set the parking brake.
2. Depress the brake pedal with your right foot.
3. Place your lef t foot on the brake pedal and release the parking brake.
4. Turn the ignition switch to the ON posi- tion.
5. Push and release the clutch interlock switch. The CANCEL light on the switch
will illuminate.
6. Turn the ignition to the START position to start the engine and, at the same
time, depress the accelerator pedal
with your right foot. As the vehicle be-
gins to move, take your lef t foot off the
brake. Once the engine has started, the
clutch interlock switch CANCEL light
shuts off. Do not use the interlock
switch to start the engine under nor-
mal driving conditions.
WARNING
The Rear Sonar System is a conve-
nience but it is not a substitute for
proper backing. Always turn and check
that it is safe to do so before backing up.
Always back up slowly.
The RSS (if so equipped) is active when the
ignition switch is placed in the ON position
and the shif t lever is in R (Reverse).
When sensors detect obstacles within 6 f t
(1.8 m) of the rear bumper, a beeping tone is
emitted.
WIC0817LIC0471
CLUTCH INTERLOCK (clutch start)
SWITCH (if so equipped) REAR SONAR SYSTEM (RSS) OFF
SWITCH (if so equipped)
2-38Instruments and controls

WARNING
∙ Make sure the hood is completelyclosed and latched before driving.
Failure to do so could cause the hood
to fly open and result in an accident.
∙ If you see steam or smoke coming from the engine compartment, to
avoid injury do not open the hood.
FUEL-FILLER CAP
WARNING
∙ Gasoline is extremely flammable andhighly explosive under certain condi-
tions. You could be burned or seri-
ously injured if it is misused or mis-
handled. Always stop the engine and
do not smoke or allow open flames or
sparks near the vehicle when
refueling. ∙ Do not attempt to top off the fuel tank
af ter the fuel pump nozzle shuts off
automatically. Continued refueling
may cause fuel overflow, resulting in
fuel spray and possibly a fire.
∙ Use only an original equipment type fuel-filler cap as a replacement. It has
a built-in safety valve needed for
proper operation of the fuel system
and emission control system. An in-
correct cap can result in a serious mal-
function and possible injury. It could
also cause the
Malfunction Indi-
cator Light (MIL) to come on.
∙ Never pour fuel into the throttle body to attempt to start your vehicle.
∙ Do not fill a portable fuel container in the vehicle or trailer. Static electricity
can cause an explosion of flammable
liquid, vapor or gas in any vehicle or
trailer. To reduce the risk of serious
injury or death when filling portable
fuel containers:
– Always place the container on the ground when filling.
– Do not use electronic devices when filling.
LPD2698
FUEL-FILLER DOOR
Pre-driving checks and adjustments3-11