2019 NISSAN FRONTIER check engine light

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

If the engine fails to start using a registered
key (for example, when interference is
caused by another registered key, an auto-
mated toll road device or automatic pay-
ment device on the key ring), restart the
engine using the following procedures:1. Leave the ignition switch in the ON po- sition for approximately 5 seconds.
2. Place the ignition switch in the OFF or LOCK position, and wait approximately
10 seconds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device (which may have caused the in-
terference) separate from the regis-
tered key.
If the no start condition re-occurs, NISSAN
recommends placing the registered key on
a separate key ring to avoid interference
from other devices. ∙ Make sure the area around the vehicle is
clear.
∙ Check fluid levels such as engine oil, coolant, brake and clutch fluid (if so
equipped), and windshield-washer fluid
as frequently as possible, or at least
whenever you refuel.
∙ Check that all windows and lights are clean.
∙ Visually inspect tires for their appear- ance and condition. Also check tires for
proper inflation.
∙ Check that all doors are closed.
∙ Position seat and adjust head restraints/headrests.
∙ Adjust inside and outside mirrors.
∙ Fasten the seat belt and ask all passen- gers to do likewise.
∙ Check the operation of warning lights when the key is placed in the ON posi-
tion. For additional information, refer to
“Warning lights, indicator lights and au-
dible reminders” in the “Instruments
and controls” section of this manual. 1. Apply the parking brake.
2.
Automatic transmission:
Move the shif t lever to P (Park) or N
(Neutral). P (Park) is recommended.
The shif t lever cannot be moved out
of the P (Park) position and into any
of the other gear positions if the ig-
nition switch is placed in the OFF po-
sition or if the key is removed from
the ignition switch.
The starter is designed not to oper-
ate if the shif t lever is in any of the
driving positions.
Manual transmission:
Move the shif t lever to N (Neutral). De-
press the clutch pedal to the floor
while cranking the engine.
The starter is designed not to oper-
ate unless the clutch pedal is fully
depressed.
3. Crank the engine with your foot off
the accelerator pedal by placing the
ignition switch in the START position.
Release the key when the engine
starts. If the engine starts, but fails to
run, repeat the above procedure.
BEFORE STARTING THE ENGINE STARTING THE ENGINE
Starting and driving5-13

WARNING
∙ For 4WD equipped vehicles, do not at-tempt to raise two wheels off the
ground and shif t the transmission to
any drive or reverse position with the
engine running. Doing so may result
in drivetrain damage or unexpected
vehicle movement which could result
in serious vehicle damage or personal
injury.
∙ Do not attempt to test a 4WD equipped vehicle on a 2-wheel dyna-
mometer (such as the dynamometers
used by some states for emissions
testing), or similar equipment even if
the other two wheels are raised off the
ground. Make sure you inform test fa-
cility personnel that your vehicle is
equipped with 4WD before it is placed
on a dynamometer. Using the wrong
test equipment may result in drive-
train damage or unexpected vehicle
movement which could result in seri-
ous vehicle damage or personal
injury.
CAUTION
∙ Do not drive the vehicle in the 4H or4LO position on dry hard surface
roads. Driving on dry, hard surfaces in
4H or 4LO may cause unnecessary
noise, tire wear and increased fuel
consumption.
If the 4WD warning light turns on
when you are driving on dry hard sur-
face roads:
– In the 4H position, shif t the 4WD shif t switch to 2–Wheel Drive
(2WD).
– In the 4LO position for automatic transmission vehicles, stop the ve-
hicle and shif t the shif t lever to the
N (Neutral) position with the brake
pedal depressed and shif t the 4WD
shif t switch to 2WD.
– In the 4LO position for manual transmission vehicles, stop the ve-
hicle and shif t the shif t lever to the
N (Neutral) position with the clutch
pedal depressed and shif t the 4WD
shif t switch to 2WD. ∙ If the warning light is still on af ter the
above operation, have your vehicle
checked as soon as possible. It is rec-
ommended that you visit a NISSAN
dealer for this service.
TRANSFER CASE SHIFTING
PROCEDURES
The part-time 4WD system provides three
positions (2WD, 4H and 4LO), so you can
select the desired drive mode according to
the driving conditions.
USING 4–WHEEL DRIVE (4WD)
(if so equipped)
5-26Starting and driving

1. Turn off the engine by turning the ignition switch off.
2. Start the engine.
- Check that the 4WD warning light turns off. If the 4WD warning light illuminates, have the system checked. It is recommended that you
visit a NISSAN dealer for this service.
3. Apply the parking brake, for A/T vehicles, depress the brake pedal and move the shif t lever to N (Neutral) position. For M/T vehicles,
move the shif t lever to the N (Neutral) position.
4. With the brake pedal depressed on A/T vehicles or with the clutch pedal depressed on M/T vehicles, move the 4WD shif t switch to
the desired mode.
- Be sure to wait until the transfer gear change completes before shif ting the shif t lever from the N (Neutral) position.
*2: While changing in and out of 4LO, the ignition key must be on and the vehicle’s engine must be running for a shif t to take place and for the indicator lights (4WD shif t and 4LO position indicator) to be operable. Otherwise, the shif t will not take place and no indicator lights
will be on or flashing.
*3: Make sure the transfer 4LO position indicator light turns on when you shif t the 4WD shif t switch to 4LO. The
indicator light will also
turn on when 4LO is selected. For additional information, refer to “Vehicle Dynamic Control (VDC) system” in this section.
5-28Starting and driving