2012 NISSAN TITAN check engine

WARNING
●Your brake system may not be working
properly if the warning light is on. Driv-
ing 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 driv-
ing 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 at a
NISSAN dealer.
Anti-lock Braking System (ABS) warning
indicator
When the parking brake is released and the
brake fluid level is sufficient, if both the brake
warning light and the Anti-lock Braking System
(ABS) warning light illuminate, it may indicate the
ABS is not functioning properly. Have the brake
system checked, and if necessary, repaired by a
NISSAN dealer promptly. Avoid high-speed driv- ing and abrupt braking. (See “Anti-lock Braking
System (ABS) warning light” in this section.)Charge warning light
If this light comes on while the engine is running,
it may indicate the charging system is not func-
tioning properly. Turn the engine off and check
the generator belt. If the belt is loose, broken,
missing, or if the light remains on, see a NISSAN
dealer immediately.
CAUTION
●
Do not ground electrical accessories
directly to the battery terminal. Doing
so will bypass the variable control sys-
tem and the vehicle battery may not
charge completely. Refer to “Variable
voltage control system” in the “Mainte-
nance and do-it-yourself” section later
in this manual.
● Do not continue driving if the generator
belt is loose, broken or missing.
Engine oil pressure low/
Engine coolant temperature
high warning light
This light warns of low engine oil pressure or high
engine coolant temperature. If the light flickers or comes on during normal
driving, pull off the road in a safe area, stop the
engine and allow it to cool. If the light remains on
after checking the oil and coolant, stop the en-
gine
immediately and call a NISSAN dealer or
other authorized repair shop.
This light is not designed to indicate a low
oil or low coolant level. Check the oil level
with the dipstick and check the coolant level on
the reservoir. See “Engine oil” and “Checking
engine coolant level” in the “Maintenance and
do-it-yourself” section of this manual. Also see “If
your vehicle overheats” in the “In case of emer-
gency” 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 warranty. Turn off the engine as
soon as it is safe to do so.
Instruments and controls2-15
ProCarManuals.com

●If the gauge indicates engine coolant
temperature over the normal range,
stop the vehicle as soon as safely pos-
sible. If the engine is overheated, con-
tinued operation of the vehicle may se-
riously damage the engine. See “If your
vehicle overheats” in the “In case of
emergency” section for immediate ac-
tion required.
4WD warning light (
model)
The 4WD warning light comes on when the key
switch is turned to ON. It turns off soon after the
engine is started.
If the engine or vehicle is not functioning properly,
the warning light will either remain illuminated or
blink. See “4WD warning light” in the “Starting
and driving” section.
CAUTION
● If the warning light comes on or blinks
during operation, have your vehicle
checked by a NISSAN dealer as soon as
possible. ●
Do not drive on dry hard surface roads
in the 4H or 4LO position. If the 4WD
warning light turns on when you are
driving on dry hard surface roads:
– in the 4H position, shift the 4WD shift switch to 2WD.
– in the 4LO position, stop the vehicle, move the shift selector to the N posi-
tion with the brake pedal depressed,
and shift the 4WD shift switch to
2WD.
● If the warning light is still on after the
above operation, have your vehicle
checked by a NISSAN dealer as soon as
possible.
Low fuel warning light
This light comes on when the fuel level in the fuel
tank is getting low. Refuel as soon as it is conve-
nient, preferably before the fuel gauge reaches E
(Empty) . There will be a small reserve of fuel
in the tank when the fuel gauge needle
reaches E (Empty) .
Low tire pressure warning light
Your vehicle is equipped with a Tire Pressure
Monitoring System (TPMS) that monitors the tire
pressure of all tires except the spare. The low tire pressure warning light warns of low
tire pressure or indicates that the TPMS is not
functioning properly.
After the ignition switch is placed in the ON
position, this light illuminates for about 1 second
and turns off.
Low tire pressure warning:
If the vehicle is being driven with low tire
pressure, the warning light will illuminate.
A CHECK TIRE PRESSURE warning also
appears in the vehicle information display.
If you select the tire pressure information
in the display (if so equipped) , the LOW
PRESSURE warning message will be dis-
played. The tire pressure for each tire will
also be displayed.
When the low tire pressure warning light
illuminates, you should stop and adjust the
tire pressure of all 4 tires to the recom-
mended COLD tire pressure shown on the
Tire and Loading Information label located
in the driver’s door opening. The low tire
pressure warning light does not automati-
cally turn off when the tire pressure is ad-
justed. After the tire is inflated to the rec-
ommended pressure, the vehicle must be
driven at speeds above 16 MPH (25 km/h)
to activate the TPMS and turn off the low
2-16Instruments and controls
ProCarManuals.com

The indicator light flashes when the system 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, see “Electronic lock-
ing rear differential (E-Lock) system switch” later
in this section and “Electronic locking rear differ-
ential (E-Lock) system” in the “Starting and driv-
ing” section of this manual.
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.
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. 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 appears in
the vehicle information display. 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.
Instruments and controls2-19
ProCarManuals.com

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.
Security indicator light (if soequipped)
This light blinks whenever the ignition switch is in
the LOCK, OFF or ACC position. This function
indicates the security system equipped on the
vehicle is operational.
For additional information, see “Security sys-
tems” later in this section.
Slip indicator light
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.
Turn signal/hazard indicatorlights
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 place the ignition switch in the ON
position. The light will turn off after about 2 sec-
onds if the system is operational. If the light stays
on or comes on along with the
indicator light while you are driving, have the Vehicle Dy-
namic 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.
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 motion, whether or not the brake
pedal is depressed. 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 left in the ignition switch. Remove
the key and take it with you when leaving the
vehicle.
2-20Instruments and controls
ProCarManuals.com

Door open warning
This warning illuminates when a door has been
opened and the engine is running.
Low fuel warning
This warning illuminates when the fuel level in the
fuel tank is getting low. Refuel as soon as it is
convenient, preferably before the fuel gauge
reaches E (Empty) .There will be a small re-
serve of fuel in the tank when the fuel
gauge needle reaches E (Empty) .
Low windshield-washer fluid warning
This warning illuminates when the windshield-
washer fluid is at a low level. Add windshield-
washer fluid as necessary. See “Windshield-
washer fluid” in the “Maintenance and do-it-
yourself” section of this manual.
Parking brake warning
This warning illuminates when the parking brake
is set and the vehicle is driven.
Cruise main switch indicator (if so
equipped)
This indicator illuminates when the cruise control
main switch is pushed. The indicator turns off
when the main switch is pushed again. When the
cruise main switch indicator illuminates, the
cruise control system is operational. Cruise set switch indicator (if so
equipped)
This indicator illuminates while the vehicle speed
is controlled by the cruise control system. If the
indicator blinks while the engine is running, it may
indicate the cruise control system is not function-
ing properly. Have the system checked by a
NISSAN dealer.
Transfer 4LO position indicator (
model)
This indicator illuminates when the 4WD shift
switch is set in the 4LO position with the ignition
switch placed in the ON position.
If the 4WD shift switch is set in the 4LO position
and the indicator blinks, stop the vehicle, drive
slowly forward and the indicator will turn on.
When you shift between 4H and 4LO, stop the
vehicle, move the shift selector to the N (Neutral)
position, then depress and turn the 4WD shift
switch to 4LO or 4H.
The transfer case may be damaged if you shift the
switch while driving.
You cannot move the transfer 4WD shift switch
between 4H and 4LO unless you have first
stopped the vehicle and moved the shift selector
to N (Neutral) . Make sure the transfer 4LO posi-
tion indicator illuminates when you shift the 4WD
shift switch to 4LO.
The indicator may blink while shifting from
one drive mode to the other.
4WD shift indicator (
model)
While the engine is running, the 4WD shift indi-
cator will illuminate the position selected by the
4WD shift switch.
The 4WD shift indicator may blink while
shifting from one drive mode to the other.
Automatic transmission position indicator
When the ignition switch is placed in the ON
position, this indicator shows the shift selector
position. See “Driving the vehicle” in the “Starting
and driving” section of this manual.
Loose fuel cap warning
This warning appears when the fuel-filler cap is
not tightened correctly after the vehicle has been
refueled. See “Fuel-filler cap” in the “Pre-driving
checks and adjustments” section.
Check tire pressure warning
This warning appears when the low tire pressure
warning light in the meter illuminates and low tire
pressure is detected. If this warning appears,
stop the vehicle and adjust the tire pressure to
2-24Instruments and controls
ProCarManuals.com

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” (vehicles
without navigation system) in the “Pre-
driving checks and adjustments” section or
“Vehicle electronic systems” (vehicles with
navigation system) in the “Display screen,
heater, air conditioner, audio and phone sys-
tems” section.
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 door is
unlocked by the key or the keyfob, or the
ignition switch is placed to ACC or ON, the
system will not arm. ●
If the key is turned slowly when locking
the door, the system may not arm. Fur-
thermore, 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 re-
moved. 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 passengers
are in the vehicle, the system will arm
with all doors closed and locked with the
ignition switch in the OFF position.
● The lockable bedside storage com-
partment (if so equipped) is not pro-
tected by the vehicle security system.
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.
2-26Instruments and controls
ProCarManuals.com

1. Start the engine.
2. Push the LO or HI position of the switch, asdesired, depending on the temperature. The
indicator light in the switch will illuminate.
The heater is controlled by a thermostat,
automatically turning the heater on and off.
The indicator light will remain 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 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.
WIC1441
HEATED SEAT (if so equipped)
Instruments and controls2-35
ProCarManuals.com

●Use the E-Lock system only when free-
ing a stuck vehicle. Try the 4LO position
before using the E-Lock system. Never
use the E-Lock system on a slippery
road surface such as snow or ice sur-
face. Using the E-Lock system when
driving in these road conditions may
cause unexpected movement of the ve-
hicle during engine braking, accelerat-
ing or turning, which may result in an
accident and serious personal injury.
CAUTION
● After using the E-Lock system, turn the
switch OFF to prevent possible damage
to driveline components from extended
use.
● Do not drive over 12 MPH (20 km/h)
when the system is engaged. Doing so
could result in possible damage to the
driveline.
● Do not turn on the E-lock system while
the tires are spinning. Doing so could
damage drivetrain components.
WARNING
The rear sonar system is a convenience
but it is not a substitute for proper back-
ing. Always turn and check that it is safe to
do so before backing up. Always back up
slowly.
The rear sonar system is active when the ignition
switch is placed to the ON position and the shift
selector is in R (Reverse) .
When sensors detect obstacles within 5.9 ft (1.8
m) of the rear bumper, a beeping tone is emitted. The rear sonar system can be disabled by push-
ing the OFF switch. When the system is disabled,
the indicator light on the switch will illuminate.
Push the switch again to enable the system. The
indicator light will go off.
The system will automatically reset the next time
the ignition switch is turned on.
See “Rear sonar system” in the “Starting and
driving” section.
LIC0471
REAR SONAR SYSTEM OFF SWITCH
(if so equipped)
Instruments and controls2-37
ProCarManuals.com