check engine NISSAN FRONTIER 2012 Owner´s Manual

4WD shift indicator light(
model)
The light should turn off within 1 second after
placing the ignition switch in the ON position.
While the engine is running, the 4WD shift indi-
cator light will illuminate the position selected by
the 4WD shift switch.
The 4WD shift indicator light may blink
while shifting from one drive mode to the
other.
Front passenger air bag statuslight
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 front passenger air bag status light operation,
see “Front passenger air bag and status light” in
the “Safety — Seats, seat belts and supplemental
restraint system” section of this manual.
High beam indicator light
(blue)
This blue light comes on when the headlight 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 system onindicator 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 or blink
when the hill descent switch is on, the system
may not be functioning properly. Have the system
checked by a NISSAN dealer.
For additional information, see “Hill descent con-
trol switch” later in this section and “Hill descent
control system” in the “Starting and driving” sec-
tion 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 malfunction.
The Malfunction Indicator Light 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 gallons
(11.4 liters) of fuel in the fuel tank.
After a few driving trips, the
light should
turn off if no other potential emission 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 sys-
tem inspection/maintenance test. See “Readi-
ness for inspection/maintenance (I/M) test” in the
“Technical and consumer information” section of
this manual.
Instruments and controls2-21

Operation
The Malfunction Indicator Light will come on in
one of two ways:● Malfunction Indicator Light on steady — An
emission control system malfunction has
been detected. Check the fuel-filler cap if
the LOOSE FUEL CAP warning message is
displayed in the odometer. 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 after a few
driving trips. If the
light does not turn
off after a few driving trips, have the vehicle
inspected by a NISSAN dealer. You do not
need to have your vehicle towed to the
dealer.
● Malfunction Indicator Light blinking — An
engine misfire has been detected which may
damage the emission control system. To re-
duce or avoid emission control system dam-
age:
– do not drive at speeds above 45 MPH (72 km/h) .
– avoid hard acceleration or deceleration.
– avoid steep uphill grades.
– if possible, reduce the amount of cargo being hauled or towed. The Malfunction Indicator Light may stop blinking
and come on steady. Have the vehicle inspected
by a NISSAN dealer. You do not need to have
your vehicle towed to the dealer.
CAUTION
Continued vehicle operation without hav-
ing the emission control system checked
and repaired as necessary could lead to
poor driveability, reduced fuel economy,
and possible damage to the emission con-
trol system.
Overdrive off indicator light
(A/T models only)
This light comes on when the overdrive function
is OFF.
The automatic transmission overdrive function is
controlled by the overdrive switch.
See “Driving the vehicle” in the “Starting and
driving” section of this manual.
Security indicator light (if soequipped)
This light blinks when the ignition switch is in the
OFF, LOCK or ACC position. The blinking secu-
rity indicator light indicates that the security sys-
tems equipped on the vehicle are operational. For additional information, see “Security sys-
tems” later in this section.
Slip indicator light for models
with ABLS
This indicator light comes on if the active brake
limited slip is activated. If activated, the system
will apply braking to the slipping drive wheel(s) ,
giving the non-slipping wheel(s) more traction.
Slip indicator light for modelswith VDC
This indicator will blink when the VDC system or
the traction control system is operating, thus
alerting that the vehicle is nearing its traction
limits. The road surface may be slippery.
Transfer 4LO position indicatorlight (
model)
The light should turn off within 1 second after
turning the ignition switch to ON.
This light comes on when the 4WD shift switch is
set in the 4LO position with the ignition switch in
the ON position.
The transfer case may be damaged if you shift the
switch while driving.
2-22Instruments and controls

Make sure the transfer 4LO position indicator
light turns on when you shift the 4WD shift switch
to 4LO.
The indicator light may blink while shifting
from one drive mode to the other.
The 4LO indicator light must stop blinking and
remain illuminated or turn off before shifting the
transmission into gear. If the shift selector is
shifted from the N (Neutral) position to any other
gear when the 4LO indicator light is blinking, the
vehicle may move unexpectedly.
When you shift between 4H and 4LO, follow the
instructions below:● For automatic transmission models, stop the
vehicle and shift the shift selector to the N
(Neutral) position with the brake pedal de-
pressed, then depress and turn the 4WD
shift switch to 4LO or 4H.
● For manual transmission models, stop the
vehicle and shift the shift selector to the N
(Neutral) position with the clutch pedal de-
pressed, then depress and turn the 4WD
shift switch to 4LO or 4H.
You cannot move the transfer 4WD shift switch
between 4H and 4LO unless you stop the vehicle
and shift the shift selector to the N position with
the brake pedal (A/T models) or clutch pedal
(M/T models) depressed.Turn signal/hazard indicator 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 Vehicle
Dynamic Control off switch is pushed to OFF, the
transfer case is in the 4LO position (
model) , or when the Vehicle Dynamic Control
system is not functioning properly. This indicates
the Vehicle Dynamic Control system is not oper-
ating.
Push the Vehicle Dynamic Control off switch
again or restart the engine and the system will
operate normally. See “Vehicle Dynamic Control
(VDC) system” in the “Starting and driving” sec-
tion of this manual.
The Vehicle Dynamic Control light also comes on
when you turn the ignition key to the ON position.
The light will turn off after 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 Vehicle Dynamic
Control system checked by a NISSAN dealer.
If the battery is removed or discharged, the Ve-
hicle Dynamic Control system is disabled and the
VDC indicator light will not turn off after 2 sec-
onds when the ignition switch is turned to the ON
position. To reset the system, you must perform
the reset procedure. Refer to “Vehicle Dynamic
Control (VDC) system” in the “Starting and driv-
ing” section of this manual.
If the light does not go off after performing the
reset procedure, have the traction control system
checked by a NISSAN dealer.
While the Vehicle Dynamic Control system is
operating, you might feel slight vibration or hear
the system 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 electronic locking
rear differential (E-lock) system 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.
Instruments and controls2-23

Keyfob operation:
●Push the
button on the keyfob.
All doors lock. The hazard lights flash
twice and the horn beeps once to indicate
all doors are locked.
● When the
button is pushed with
all doors locked, the hazard lights flash
twice and the horn beeps once as a re-
minder that the doors are already locked.
The horn may or may not beep. Refer to
“Silencing the horn beep feature” in the
“Pre-driving checks and adjustments” sec-
tion later in this manual.
4. Confirm that the
indicator light comes
on. The
light stays on for about 30
seconds. The vehicle security system is now
pre-armed. After about 30 seconds the ve-
hicle security system automatically shifts
into the armed phase. The
light begins
to flash once every 3 seconds. If, during the
30-second pre-arm time period, the driver’s
door is unlocked by the key or the keyfob, or
the ignition switch is placed in ACC or ON
position, the system will not arm. ●
If the key is turned slowly when locking
the driver’s door, the system may not
arm. Furthermore, if the key is turned
beyond the vertical position toward the
unlock position to remove the key, the
system may be disarmed when the key
is removed. If the indicator light fails to
glow for a period of time, unlock the
door once and lock it again.
● Even when the driver and/or passen-
gers are in the vehicle, the system will
arm with all doors closed and locked
with the ignition switch placed in the
OFF position.
Vehicle security system activation
The vehicle security system will give the following
alarm:
● The headlights blink and the horn sounds
intermittently.
● The alarm automatically turns off after a pe-
riod of time. However, the alarm reactivates if
the vehicle is tampered with again. The alarm
can be shut off by unlocking the driver’s door
with the key or by pressing the
button
on the keyfob. The alarm is activated by:
● opening a door without using the key or
keyfob (even if the door is unlocked by using
the inside lock knob or the power door lock
switch) .
How to stop an activated alarm
The alarm stops only by unlocking the driver’s
door with the key or by pressing the
button
on the keyfob.
NISSAN VEHICLE IMMOBILIZER
SYSTEM (if so equipped)
The NISSAN Vehicle Immobilizer System will not
allow the engine to start without the use of a
registered key.
If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device on the key
ring) , restart the engine using the following pro-
cedures:
1. Leave the ignition switch in the ON position for approximately 5 seconds.
2. Turn the ignition switch to the OFF or LOCK position, and wait approximately 10 sec-
onds.
Instruments and controls2-25

WARNING
Do not use or allow occupants to use the
seat heater if you or the occupants cannot
monitor elevated seat temperatures 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 se-
rious injury.
CAUTION
●Do not use the seat heater for extended
periods or when no one is using the
seat.
● Do not put anything on the seat which
insulates heat, such as a blanket, cush-
ion, 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 damage 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 simi-
lar materials. ●
If any malfunctions are found or the
heated seat does not operate, turn the
switch off and have the system checked
by your NISSAN dealer.
● The battery could run down if the seat
heater is operated while the engine is
not running.
The vehicle should be driven with the Vehicle
Dynamic Control (VDC) system on for most driv-
ing 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 depressed 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. See “Vehicle Dy-
namic Control (VDC) system” in the “Starting and
driving” section.
LIC1548
VEHICLE DYNAMIC CONTROL (VDC)
OFF SWITCH
2-34Instruments and controls

WARNING
●Make sure the hood is completely
closed and latched before driving. Fail-
ure 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 and
highly explosive under certain condi-
tions. You could be burned or seriously
injured if it is misused or mishandled.
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
after 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 emis-
sion control system. An incorrect cap
can result in a serious malfunction and
possible injury. It could also cause
the
Malfunction Indicator 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.
LPD0263
FUEL-FILLER DOOR
Pre-driving checks and adjustments3-11

THREE-WAY CATALYST
The three-way catalyst is an emission control
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, animals
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. Deposits
from 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 driv-
ing if the engine misfires, or if notice-
able loss of performance or other un-
usual operating conditions are
detected. Have the vehicle inspected
promptly by a NISSAN dealer.
● Avoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging 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 in-
flated to the inflation pressure recommended 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 possible, and inflate
them to the proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire to over-
heat 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 substitute for
proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if under-inflation has not reached the level to
trigger illumination 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 mal-
function indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously
illuminated. This sequence will continue upon
Starting and driving5-3

●Before operating the vehicle, ensure
that the driver and all passengers have
their seat belts fastened.
● Always drive with the floor mats in
place as the floor may become hot.
● Lower your speed when encountering
strong crosswinds. With a higher center
of gravity, your NISSAN is more af-
fected by strong side winds. Slower
speeds ensure better vehicle control.
● Do not drive beyond the performance
capability of the tires, even with 4WD
engaged (if so equipped) .
● For 4WD equipped vehicles, do not at-
tempt to raise two wheels off the
ground and shift the transmission to
any drive or reverse position with the
engine running. Doing so may result in
drivetrain damage or unexpected ve-
hicle movement which could result in
serious vehicle damage or personal
injury. ●
Do not attempt to test a 4WD equipped
vehicle on a 2-wheel dynamometer
(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 facility personnel
that your vehicle is equipped with 4WD
before it is placed on a dynamometer.
Using the wrong test equipment may
result in drivetrain damage or unex-
pected vehicle movement which could
result in serious vehicle damage or per-
sonal injury.
● Accelerating quickly, sharp steering
maneuvers or sudden braking may
cause loss of control.
● If at all possible, avoid sharp turning
maneuvers, particularly at high speeds.
Your NISSAN four-wheel drive vehicle
has a higher center of gravity than a
passenger car. The vehicle is not de-
signed for cornering at the same
speeds as passenger cars. Failure to
operate this vehicle correctly could re-
sult in loss of control and/or a rollover
accident. ●
Always use tires of the same type, size,
brand, construction (bias, bias-belted,
or radial) , and tread pattern on all four
wheels. Install tire chains on the rear
wheels when driving on slippery roads
and drive carefully.
● Be sure to check the brakes immedi-
ately after driving in mud or water. See
“Brake system” later in this section for
“Wet brakes”.
● Avoid parking your vehicle on steep
hills. If you get out of the vehicle and it
rolls forward, backward or sideways,
you could be injured.
● Whenever you drive off-road through
sand, mud or water as deep as the
wheel hub, more frequent maintenance
may be required. See “Periodic mainte-
nance” in the “NISSAN Service and
Maintenance Guide.”
Starting and driving5-9

If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device on the key
ring) , restart the engine using the following pro-
cedures:1. Leave the ignition switch in the ON position for approximately 5 seconds.
2. Turn the ignition switch to the OFF or LOCK position, and wait approximately 10 sec-
onds.
3. Repeat steps 1 and 2.
4. Restart the engine while holding the device (which may have caused the interference)
separate from the registered key.
If the no start condition re-occurs, NISSAN rec-
ommends placing the registered key on a sepa-
rate key ring to avoid interference from other
devices. ●
Make sure the area around the vehicle is
clear.
● Check fluid levels such as engine oil, cool-
ant, 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 appearance
and condition. Also check tires for proper
inflation.
● Check that all doors are closed.
● Position seat and adjust head restraints.
● Adjust inside and outside mirrors.
● Fasten the seat belt and ask all passengers
to do likewise.
● Check the operation of warning lights when
the key is turned to the ON (3) position. See
“Warning/indicator lights and audible re-
minders” in the “Instruments and controls”
section of this manual. 1. Apply the parking brake.
2.
Automatic transmission:
Move the shift selector to P (Park) or N
(Neutral) . P (Park) is recommended.
The shift selector cannot be moved out
of the P (Park) position and into any of
the other gear positions if the ignition
switch is placed in the OFF position or
if the key is removed from the ignition
switch.
The starter is designed not to operate if
the shift selector is in any of the driving
positions.
Manual transmission:
Move the shift selector to N (Neutral) . De-
press the clutch pedal to the floor while
cranking the engine.
The starter is designed not to operate
unless the clutch pedal is fully de-
pressed.
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
5-12Starting and driving

Shift lock release
If the battery is discharged, the shift selector may
not be moved from the P (Park) position even with
the brake pedal depressed.
To move the shift selector, release the shift lock.
The shift selector can be moved to N (Neutral) .
However, the steering wheel will be locked un-
less the ignition switch is placed in the ON posi-
tion (for models with a steering lock mechanism) .
This allows the vehicle to be moved if the battery
is discharged.To push the shift lock release, complete the fol-
lowing procedure:
1. Place the ignition switch in the LOCK posi- tion and remove the key.
2. Apply the parking brake.
3. Remove the shift lock release cover as shown.
4. Use a protective cloth on the tip of a small screwdriver before inserting it in the shift
lock release slot and pushing down.
5. Move the shift selector to the N (Neutral) position while holding down the shift lock
release.
6. Place the ignition switch in the ON position to unlock the steering wheel (for models with
a steering lock mechanism) .
7. Now the vehicle may be moved to the de- sired location.
If the shift selector cannot be moved out of P
(Park) , have a NISSAN dealer check the auto-
matic transmission system as soon as possible.
WARNING
If the shift selector cannot be moved from
the P (Park) position while the engine is
running and the brake pedal is depressed,
the stop lights may not work. Malfunction-
ing stop lights could cause an accident
injuring yourself and others.
Accelerator downshift
— in D position —
For passing or hill climbing, depress the accel-
erator pedal to the floor. This shifts the transmis-
sion down into a lower gear, depending on the
vehicle speed.
LSD0141
5-16Starting and driving