check engine NISSAN FRONTIER 2018 Owner´s Manual

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 sys-
tem may not be functioning properly. Have
the system checked. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
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.
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
emission control system. To reduce or
avoid emission control system dam-
age:
– 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.
2-22Instruments and controls

Turn signal/hazardindicator lights
The appropriate light flashes 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.
The VDC light also comes on when you turn
the ignition key to the ON position. The light
will turn off af ter about 2 seconds if the
system is operational. If the light stays on
or comes on along with the SLIP (
)
indicator light while you are driving, have the VDC system checked. It is recom-
mended that you visit a NISSAN dealer for
this service.
If the battery is removed or discharged, the
VDC system is disabled and the VDC indi-
cator light will not turn off af ter 2 seconds
when the ignition switch is turned to the
ON position. To reset the system, you must
perform the reset procedure. For addi-
tional information, refer to “Vehicle Dy-
namic Control (VDC) system” in the “Start-
ing and driving” section of this manual.
If the light does not go off af ter performing
the reset procedure, have the traction con-
trol system checked. It is recommended
that you visit a NISSAN dealer for this ser-
vice.
While the VDC system is operating, you
might feel slight vibration or hear the sys-
tem working when starting the vehicle or
accelerating, but this is normal.
The VDC system will be disabled and the
VDC light will illuminate when the elec-
tronic locking rear differential (E-lock) sys-
tem switch (if so equipped) is turned on
and the E-lock system is engaged. If the
E-lock system disengages or the switch is
turned off, the VDC system will be enabled
and the VDC light will turn off.
AUDIBLE REMINDERS
Brake pad wear warning
The disc brake pads have audible wear
warnings. When a disc brake pad requires
replacement, it makes a high pitched
scraping sound when the vehicle is in mo-
tion, whether or not the brake pedal is de-
pressed. Have the brakes checked as soon
as possible if the warning sound is heard.
Key reminder chime
A chime sounds if the driver’s door is
opened while the key is lef t in the ignition
switch. Remove the key and take it with you
when leaving the vehicle.
Light reminder chime
With the ignition switch placed in the OFF
position, a chime sounds when the driver’s
door is opened if the headlights or parking
lights are on.
Turn the headlight control switch off before
leaving the vehicle.
2-24Instruments and controls

∙ When cleaning the seat, never usegasoline, 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.
The vehicle should be driven with the VDC
system on for most driving conditions.
If the vehicle is stuck in mud or snow, the
VDC system reduces the engine output to
reduce wheel spin. The engine speed will
be reduced even if the accelerator is de-
pressed to the floor. If maximum engine
power is needed to free a stuck vehicle,
turn the VDC system off.
To turn off the VDC system, push the VDC
OFF switch. The
indicator will come
on. Push the VDC OFF switch again or restart
the engine to turn on the system. For addi-
tional information, refer to “Vehicle Dy-
namic Control (VDC) system” in the “Start-
ing and driving” section of this manual.
LIC3344
VEHICLE DYNAMIC CONTROL (VDC)
OFF SWITCH
Instruments and controls2-35

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

THREE-WAY CATALYST
The three-way catalyst is an emission con-
trol device installed in the exhaust system.
Exhaust gases in the three-way catalyst
are burned at high temperatures to help
reduce pollutants.
WARNING
∙ The exhaust gas and the exhaust sys-tem are very hot. Keep people, ani-
mals or flammable materials away
from the exhaust system
components.
∙ Do not stop or park the vehicle over flammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire.
CAUTION
∙ Do not use leaded gasoline. Depositsfrom leaded gasoline will seriously re-
duce the three-way catalyst’s ability
to help reduce exhaust pollutants. ∙ Keep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep
driving if the engine misfires, or if no-
ticeable loss of performance or other
unusual operating conditions are de-
tected. Have the vehicle inspected
promptly. It is recommended that you
visit a NISSAN dealer for this service.
∙ Avoid driving with an extremely low fuel level. Running out of fuel could
cause the engine to misfire, damag-
ing the three-way catalyst.
∙ Do not race the engine while warming it up.
∙ Do not push or tow your vehicle to start the engine.TIRE PRESSURE MONITORING
SYSTEM (TPMS)
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your vehicle
has been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates
a low tire pressure telltale when one or
more of your tires is significantly under-
inflated. Accordingly, when the low tire
pressure telltale illuminates, you should
stop and check your tires as soon as pos-
sible, and inflate them to the proper pres-
sure. Driving on a significantly under-
inflated tire causes the tire to overheat and
can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a substi-
tute for proper tire maintenance, and it is
the driver’s responsibility to maintain cor-
rect tire pressure, even if under-inflation
has not reached the level to trigger illumi-
nation of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
Starting and driving5-3

∙ Make sure the area around the vehicle isclear.
∙ 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.
∙ If the engine is very hard to start in extremely cold weather or when re-
starting, depress the accelerator
pedal a little (approximately 1/3 to the
floor) and hold it and then crank the
engine. Release the key and the ac-
celerator pedal when the engine
starts.
∙ If the engine is very hard to start be- cause it is flooded, depress the accel-
erator pedal all the way to the floor
and hold it. Crank the engine for
5-6 seconds. Af ter cranking the en-
gine, release the accelerator pedal.
Crank the engine with your foot off
the accelerator pedal by placing the
ignition in the START position. Re-
lease 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

Shif t lock release
If the battery is discharged, the shif t lever
may not be moved from the P (Park) posi-
tion even with the brake pedal depressed.
To move the shif t lever, release the shif t
lock. The shif t lever can be moved to N
(Neutral). However, the steering wheel will
be locked unless the ignition switch is
placed in the ON position (for models with a
steering lock mechanism). This allows the
vehicle to be moved if the battery is dis-
charged.To push the shif t lock release, complete the
following procedure:
1. Place the ignition switch in the LOCK position and remove the key.
2. Apply the parking brake.
3. Remove the shif t lock release cover as shown.
4. Use a protective cloth on the tip of a small screwdriver before inserting it in
the shif t lock release slot and pushing
down.
5. Move the shif t lever to the N (Neutral) position while holding down the shif t
lock release.
6. Place the ignition switch in the ON po- sition to unlock the steering wheel (for
models with a steering lock mecha-
nism).
7. Now the vehicle may be moved to the desired location.
If the shif t lever cannot be moved out of P
(Park), have the automatic transmission
system checked as soon as possible. It is
recommended that you visit a NISSAN
dealer for this service.
WARNING
If the shif t lever cannot be moved from
the P (Park) position while the engine is
running and the brake pedal is de-
pressed, the stop lights may not work.
Malfunctioning stop lights could cause
an accident injuring yourself and
others.
Accelerator downshif t
— in D (Drive) position —
For passing or hill climbing, depress the
accelerator pedal to the floor. This shif ts
the transmission down into a lower gear,
depending on the vehicle speed.
LSD0141
Starting and driving5-17

PRECAUTIONS ON CRUISE
CONTROL
1. ACCEL•RES switch
2. COAST•SET switch
3. CANCEL switch
4. ON•OFF switch∙ If the cruise control system malfunc- tions, it cancels automatically. The SET
indicator light in the instrument panel
then blinks to warn the driver. ∙ If the SET indicator light blinks, turn the
ON•OFF switch off and have the system
checked. It is recommended that you
visit a NISSAN dealer for this service.
∙ The SET indicator light may blink when the ON•OFF switch is turned on while
pushing the ACCEL•RES, COAST•SET, or
CANCEL switch (located on the steering
wheel). To properly set the cruise con-
trol system, use the following proce-
dures.
WARNING
Do not use the cruise control when driv-
ing under the following conditions:
∙ When it is not possible to keep thevehicle at a set speed.
∙ In heavy traffic or in traffic that varies in speed.
∙ On winding or hilly roads.
∙ On slippery roads (rain, snow, ice, etc.).
∙ In very windy areas.
Doing so could cause a loss of vehicle
control and result in an accident.
CAUTION
On manual transmission models, do not
shif t into N (Neutral) without depress-
ing the clutch pedal when the cruise
control is set. Should this occur, depress
the clutch pedal and turn the ON•OFF
switch off immediately. Failure to do so
may cause engine damage.
CRUISE CONTROL OPERATIONS
The cruise control allows driving at a speed
between 25 - 89 mph (40 - 144 km/h) with-
out keeping your foot on the accelerator
pedal.
To turn on the cruise control, push the
ON•OFF switch. The CRUISE indicator light
in the instrument panel comes on.
To set cruising speed, accelerate the ve-
hicle to the desired speed, push the COAST-
•SET switch and release it. The SET indica-
tor light in the instrument panel comes on.
Take your foot off the accelerator pedal.
Your vehicle maintains the set speed.
∙ To pass another vehicle, depress the
accelerator pedal. When you release the
pedal, the vehicle returns to the previ-
ously set speed.
LSD2753
CRUISE CONTROL
5-22Starting and driving

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 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 youvisit 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