2019 NISSAN TITAN coolant temperature

Do not attempt to start the engine by
pushing.
CAUTION
∙ Automatic transmission models can-not be push-started or tow-started.
Attempting to do so may cause trans-
mission damage.
∙ Three way catalyst equipped models should not be started by pushing
since the three way catalyst may be
damaged.
∙ Never try to start the vehicle by tow- ing it; when the engine starts, the for-
ward surge could cause the vehicle to
collide with the tow vehicle.
WARNING
∙ Do not continue to drive if your vehicleoverheats. Doing so could cause en-
gine damage or a vehicle fire.
∙ To avoid the danger of being scalded, never remove the radiator or coolant
reservoir cap while the engine is still
hot. When the radiator or coolant res-
ervoir cap is removed, pressurized hot
water will spurt out, possibly causing
serious injury.
∙ Do not open the hood if steam is com- ing out.
If your vehicle is overheating (indicated by
an extremely high temperature gauge
reading), or if you feel a lack of engine
power, detect abnormal noise, etc. take the
following steps: 1. Move the vehicle safely off the road, ap- ply the parking brake and move the
shif t lever to P (Park).
Do not stop the engine.
2. Turn off the air conditioner. Open all the windows, move the heater or air condi-
tioner temperature control to maxi-
mum hot and fan control to high
speed. 3. If engine overheating is caused by
climbing a long hill on a hot day, run the
engine at a fast idle (approximately
1,500 rpm) until the temperature gauge
indication returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. If
steam or coolant is escaping, turn off
the engine. Do not open the hood fur-
ther until no steam or coolant can be
seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or looseness. Also check if the cooling
fan is running. The radiator hoses and
radiator should not leak water. If cool-
ant is leaking, the water pump belt is
missing or loose, or the cooling fan
does not run, stop the engine.
PUSH STARTING IF YOUR VEHICLE OVERHEATS
6-16In case of emergency

Engine coolant must be disposed of prop-
erly. Check your local regulations.
For additional information on changing the
Cummins 5.0L engine coolant, refer to the
Titan Diesel Owner’s Manual.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface andapply the parking brake.
2. Start the engine and let it idle until it reaches operating temperature.
3. Turn off the engine. Wait more than
15 minutes for the oil to drain back
into the oil pan.
4. Remove the dipstick and wipe it clean. Reinsert it all the way. 5. Remove the dipstick again and check
the oil level. It should be between the H
(High) and L (Low) marksB. This is the
normal operating oil level range. If the
oil level is below the L (Low) mark
A,
remove the oil filler cap and pour rec-
ommended oil through the opening.
Do not overfill
C.
6. Recheck oil level with the dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
VK56VD engine
LDI2956
VK56VD engine
LDI0371
ENGINE OIL
Do-it-yourself8-7

∙ While going downhill, the weight of thetrailer pushing on the tow vehicle may
decrease overall stability. Therefore, to
maintain adequate control, reduce your
speed and shif t to a lower gear. Avoid
long or repeated use of the brakes
when descending a hill, as this reduces
their effectiveness and could cause
overheating. Shif ting to a lower gear in-
stead provides “engine braking” and re-
duces the need to brake as frequently.
∙ If the engine coolant temperature rises to a high temperature, refer to “If your
vehicle overheats” in the “In case of
emergency” section of this owner’s
manual.
∙ Trailer towing requires more fuel than normal circumstances.
∙ Avoid towing a trailer for your vehicle’s first 500 miles (805 km).
∙ For the first 500 miles (805 km) that you do tow, do not drive over 50 mph
(80 km/h).
∙ Have your vehicle serviced more of ten than at intervals specified. For addi-
tional information, refer to “Mainte-
nance schedules” in the “Maintenance
and schedule” section of this manual. ∙ When making a turn, your trailer wheels
will be closer to the inside of the turn
than your vehicle wheels. To compen-
sate for this, make a larger than normal
turning radius during the turn.
∙ Crosswinds and rough roads will ad- versely affect vehicle/trailer handling,
possibly causing vehicle sway. When
being passed by larger vehicles, be pre-
pared for possible changes in cross-
winds that could affect vehicle han-
dling.
Trailer Sway Assist :
To minimize trailer sway, your vehicle may
apply braking to individual wheels based
on input from your vehicle sensors and ve-
hicle speed. Trailer sway control is a func-
tion of the Vehicle Dynamic Control (VDC)
system and is active when the VDC func-
tion is enabled.
CAUTION
If the VDC-OFF switch is on (meaning
VDC system OFF), the Trailer Sway As-
sist is also disabled When Trailer Sway Assist is in operation, the
VDC warning light blinks. When vehicle con-
trol is regained, VDC warning light will turn
OFF.
For additional information about the VDC
system, refer to “Vehicle Dynamic Control
(VDC) OFF switch” in the “Instruments and
controls” section and “Vehicle Dynamic
Control (VDC) system” in the “Starting and
driving” section of this manual.
If Trailer Sway Assist activates, do the fol-
lowing:
1. Take your foot off the accelerator pedal to allow the vehicle to coast and steer
as straight ahead as the road condi-
tions allow. This combination will help
stabilize the vehicle
CAUTION
Do not try to correct trailer sway by
steering or applying the brakes.
2. When the trailer sway stops, gently ap- ply the brakes and pull to the side of the
road in a safe area.
3. Try to rearrange the trailer load so it is balanced. For additional information,
refer to “Pre-towing tips” in this section.
Technical and consumer information10-61

Top tether strap anchor point
locations...................1-31
Child safety rear door lock ..........3-10
Chimes, audible reminders .........2-25
Cleaningexteriorandinterior......7-2,7-4
Climatecontrolseatswitch.........2-55
C.M.V.S.S. certification label .........10-20
Coldweatherdriving.............5-68
Compass ....................2-12
Console light ..................2-88
Controls Heater and air conditioner controls . .4-39
Heater and air conditioner controls
(manual) ...................4-29
Coolant Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant .........8-6
Checking engine coolant level ......8-6
Engine coolant temperature gauge . .2-8
Corrosionprotection..............7-7
Cruisecontrol...........5-41,5-41,5-42
Cupholders...................2-78
Curtain side-impact and rollover air
bag........................1-78
D
Daytime Running Light System . . .2-52, 8-30
Diesel Particulate Filter (DPF) .........8-11
DigitalvideodiscDVD ............4-44
Dimensions and weights ..........10-12
Dimmer switch for instrument panel . . .2-53
Display......................2-26
Door locks ..................3-5,3-6 Door open warning light
...........2-19
Drivebelt ....................8-19
Drive positioner, Automatic ......3-43,3-45
Driving Cold weather driving ...........5-68
Driving with automatic
transmission ................5-17
Precautions when starting and
driving..................5-2,5-9
Drivingthevehicle...............5-17
E
Eco Drive Report ................5-53
Economy - fuel .................5-44
Electronic locking rear differential (E-Lock)
system ......................5-52
Electronic locking rear differential (E-Lock)
system switch .................2-62
Emergency engine shutoff .......5-13,6-2
Emission control information label . . . .10-20
Emission control system warranty . . . .10-65
Engine Before starting the engine ........5-15
Blockheater................5-70
Capacities and recommended
fuel/lubricants...............10-2
Changing engine coolant .........8-6
Changing engine oil ............8-8
Changing engine oil filter .........8-9
Checking engine coolant level ......8-6
Checking engine oil level .........8-7
Engine compartment check
locations...................8-3
Engine coolant temperature gauge . .2-8 Engine cooling system
..........8-5
Engine oil ...................8-7
Engine oil and oil filter
recommendation .............10-7
Engine oil pressure gauge .....2-10,2-11
Engine oil pressure warning light ....2-19
Engine oil viscosity ............10-8
Engine serial numbe r..........10-19
Engine specifications ..........10-10
Engine coolant temperature gauge ....2-8
Engine oil pressure gauge .......2-10,2-11
EventDatarecorders............10-67
Exhaust gas (Carbon monoxide) .......5-2
Explanation of maintenance items .....9-2
Explanation of scheduled maintenance
items .......................9-5
Extended storage switch ..........2-70
Eyeglasscase..................2-77
F
Flashers
(Seehazardwarningflasherswitch)....6-2
Flattire....................6-3,6-4
F lo

ormatpositioningaid...........7-5
Fluid Brakefluid..................8-13
Capacities and recommended
fuel/lubricants...............10-2
Engine coolant ...............8-5
Engine oil ...................8-7
Powersteeringfluid............8-12
Windshield-washer fluid .........8-13
F.M.V.S.S. certification label .........10-20
Foglightswitch................2-54
11-2

Front air bag system
(See supplemental restraint
system)..................1-60, 1-75
Front and rear sonar system ........5-63
Front-door pocket ...............2-71
Front power seat adjustment ........1-5
Frontseats....................1-2
Fuel Capacities and recommended
fuel/lubricants...............10-2
Fuel economy ...............5-44
Fuel gauge ..................2-9
Fueloctanerating.............10-7
Fuel recommendation ..........10-5
Loose fuel cap warning .........2-40
Fuel Cell Vehicle (FCV) System Tire pressure ................8-35
Fuelefficientdrivingtips...........5-43
Fuel-filler door .................3-27
Fuel gauge ....................2-9
Fuses .......................8-23
Fusiblelinks...................8-25
G
Garage door opener, HomeLink® Universal
Transceiver . .2-89, 2-90, 2-91, 2-92, 2-92, 2-93
Gauge Automatic transmission fluid
temperature gauge ............2-10
Engine coolant temperature gauge . .2-8
Engine oil pressure gauge .....2-10,2-11
Fuel gauge ..................2-9
Odometer ..................2-7
Speedometer ................2-7 Tachometer
.................2-8
Trip odometer ................2-7
Voltmeter ..................2-11
General maintenance .............9-2
Glovebox....................2-75
Grocery hooks .................2-81
H
Hazard warning flasher switch ........6-2
Headlightaimingcontrol ..........2-52
Headlight and turn signal switch ......2-49
Headlightcontrolswitch...........2-49
Headlights ...................8-29
Headlights,aimingcontrol..........2-52
Headrestraints................ .1-10
Heatedrearseats...............2-57
Heatedseats..................2-56
Heated steering wheel switch .......2-59
Heater Heater and air conditioner (automatic)
(if so equipped) ..............4-38
Heater and air conditioner controls . .4-39
Heater operation ..........4-31, 4-40
Heater and air conditioner (automatic) . .4-38
Hill descent control switch ..........2-61
Hill descent control system .........5-61
Hill start assist system ............5-62
HomeLink® Universal Transceiver . .2-89, 2-90, 2-91, 2-92, 2-92, 2-93
Hood .......................3-27
Hook Luggage hook ...............2-82
Horn.......................2-54 I
Ignition switch Push-button ignition switch .......5-11
Immobilizer system ..........2-44,5-14
Important vehicle information label . . .10-20
In-cabinmicrofilter ..............8-21
Increasing fuel economy ..........5-44
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .................2-17,2-23
Informationdisplay............. .2-26
Inside automatic anti-glare mirror .....3-34
Instrument brightness control .......2-53
Instrument panel .............0-8,2-4
Instrument paneldimmer

switch.....2-53
Intelligent Around View Monitor .......4-11
Intelligent Key system Key operating range ............3-12
Key operation ................3-13
Mechanical key ...............3-4
Remote keyless entry operation ....3-16
Troubleshooting guide ..........3-22
Warning signals ..............3-22
Interiorlight...................2-87
ISOFIX child restraints .............1-29
J
Jumpstarting..............6-14,8-18
K
Key.........................3-2
11-3

SeatsAdjustment ..................1-2
Automatic drive positioner ....3-43,3-45
Frontseats..................1-2
Heatedseats................2-56
Manual front seat adjustment ......1-4
Rearseat...................1-4
Security indicator light ............2-25
Security system (NISSAN Vehicle Immobilizer
System), engine start ..........2-44,5-14
Security systems Vehicle security system .........2-43
Self-adjustingbrakes.............8-22
Service manual order form ........10-68
Servicing air conditioner ...........4-43
Shif ting Automatic transmission .........5-19
Shoulder belt height adjustment ......1-22
Side air bag system
(See supplemental side air bag, curtain and
rollover air bag systems) ...........1-78
Snowplow...................10-63
Spark plug replacement ...........8-19
Spark plugs ...................8-19
Specifications .................10-10
Speedometer ..................2-7
Speedometer and odometer ........2-6
SRS warning label ...............1-80
Stability control ................5-59
Standard maintenance ............9-8
Starting Before starting the engine ........5-15
Jumpstarting............6-14,8-18
Precautions when starting and
driving ..................5-2,5-9
Push starting ................6-16 Starting the engine (diesel only)
......5-16
Starting the engine
(gasoline engine only) .............5-15
Steering Powersteeringfluid............8-12
Powersteeringsystem..........5-55
Steering wheel .................3-30
Stoplight....................8-32
Storage......................2-71
Storagetray...................2-75
Sunglasses case ................2-77
Sunglasses holder ...............2-77
Sunvisors....................3-32
Supplemental air bag warning labels . . .1-80
Supplemental air bag warning
light.....................1-81, 2-22
Supplemental front impact air bag
system ...................1-60, 1-75
Supplemental restraint system Information and warning labels . . . .1-80
Precautions on supplemental restraint
system .................1-53, 1-68
Supplemental restraint system
(Supplemental air bag system) .......1-53
Switch Autolightswitch..............2-50
Automatic power window switch . . .2-85
Electronic locking rear differential (E-Lock)
system switch ...............2-62
Foglightswitch..............2-54
Hazard warning flasher switch ......6-2
Headlightaimingcontrol ........2-52
Headlight and turn signal switch ....2-49
Headlightcontrolswitch.........2-49
Hill descent control switch ........2-61
Instrument brightness control .....2-53Power door lock switch
..........3-7
Powerinverterswitch ..........2-63
Rear sonar system OFF switch .....2-64
T ow

mode switch .............2-65
Turn signal switch .............2-53
T
Tachometer ...................2-8
Tailgate..................3-39, 3-39
Temperature gauge Engine coolant temperature gauge . .2-8
Thef t (NISSAN Vehicle Immobilizer System),
engine start ...............2-44,5-14
Three-waycatalyst...............5-2
Tie down hooks ................3-43
Tire Flattire..................6-3,6-4
Spare tire .............6-5,6-6,8-46
Tire and Loading Information label . .10-21
Tire chains .................8-42
Tire pressure ................8-35
Tirerotation ................8-43
Tires of 4-wheel drive ...........8-45
Types of tires ................8-41
Uniform tire quality grading ......10-64
Wheels and tires ..........8-35,10-11
Wheel/tire size ...............10-11
Tirepressure..................8-35 Low tire pressure warning light .....2-20
Tire Pressure Monitoring System
(TPMS)....................5-3,6-3
Towing 2-wheel drive models ...........6-19
Flattowing.................10-63
11-6

Preventive maintenance is the easiest and
least expensive type of maintenance. Keep
records of regularly scheduled mainte-
nance and follow the maintenance sched-
ule recommendations outlined in the Titan
Owner’s Manual.
Use the correct fuel, lubricating oil, and
coolant in your engine. Blending engine oil
with fuel is prohibited for engines with an
af tertreatment system. For additional in-
formation, refer to the “Capacities and
specifications” section of this manual.
A NISSAN dealership knows your vehicle.
When you require any service or have any
questions, they will be glad to assist you
with the extensive resources available to
them.
DIESEL ENGINE OPERATION
The operation of the diesel engine in your
new vehicle varies from the operation of
traditional gasoline engines found in other
vehicles. Reading this supplement will fa-
miliarize you and other operators of the
vehicle with the unique maintenance and
operating procedures that will prolong the
life of the diesel engine and related sys-
tems.
ENGINE BREAK-IN
RECOMMENDATIONS
∙ Warm up the engine before operating itunder load
∙ Do not operate the engine at idle for extended periods
∙ Prevent engine lugging by selecting the appropriate transmission gear
∙ Monitor the vehicle oil pressure and temperature gauges
∙ Check fluid levels frequently (Oil & Cool- ant)
∙ Vary the throttle position at highway speeds when carrying weight or towing
NOTE:
Extended light or no load operation will
extend the time before the engine
reaches its full efficiency. If the engine is
operated in this manner, reduced fuel
economy and power may be observed.
The aforementioned procedure should be
observed for the first 6,000 miles. The en-
gine run-in is improved by operating the
vehicle under load.
DIESEL FUEL SYSTEM
The diesel engine fuel system is a pressur-
ized two-stage filtration system and con-
sists of: ∙ A frame-mounted primary (stage 1) fuel filter containing water/fuel separator,
electric fuel pump, and water in fuel
drain valve
∙ An engine-mounted secondary (stage 2) fuel filter
∙ A fuel injector for each cylinder (8 total)
∙ A high-pressure fuel pump
∙ A high-pressure fuel rail for each cylin- der bank (2 total)
∙ High-pressure fuel lines from the high- pressure fuel pump to the right bank
fuel rail, right bank fuel rail to the lef t
bank fuel rail, and fuel rails to fuel injec-
tors.
GENERAL INFORMATION
1-2Introduction

The stage 1 fuel filter separates water and
filters impurities from the fuel. The stage 2
fuel filter filters finer impurities from the
diesel fuel. The stage 1 and stage 2 fuel
filters should be changed at the recom-
mended service interval or when indicated
by the information display. For additional
information, refer to “Maintenance and
schedules” and “Instruments and controls”
sections of the Titan Owner’s Manual.
The water/fuel separator should be
drained when indicated by illumination of
the water in fuel warning light.
NOTE:
Proper fuel filter maintenance and
prompt water draining when the water
in the fuel filter warning light illuminates
is essential to prevent damage to fuel
injection system components. Ignoring
the water in fuel warning light can cause
your vehicle to go into a reduced power
mode and has the potential for fuel sys-
tem damage.ENGINE PROTECTION MODE
The diesel engine in this vehicle is equipped
with electronically controlled fuel and
emission systems. Both systems monitor
engine temperatures and pressures, and
then modif y engine operation accordingly.
It is normal for the diesel engine to operate
under these modified conditions for short
durations of time. If the engine operates
under the modified conditions for ex-
tended periods of time, and the service en-
gine soon light is illuminated, have the sys-
tem checked. It is recommended that you
visit a NISSAN dealer for this service as
soon as possible.
LUBRICATION SYSTEM
It is important to change the engine oil at
the recommended service intervals to
maintain oil viscosity. Extending the oil and
filter change interval beyond the recom-
mended interval can negatively affect en-
gine performance, fuel economy and en-
gine life. For additional information, refer to
the “Do-it-yourself ” section of this manual.
GLOW PLUGS
The diesel engine glow plug system con-
sists of:∙ Eight Glow Plugs (one per cylinder)
∙ Glow Plug Control Module - Uses input from the Engine Coolant Temperature
Sensor
The glow plugs are energized momentarily
when the ignition is first turned on. The
length of time that the glow plugs are en-
ergized varies depending on engine and
environmental conditions. The required
time for the glow plugs to be energized
decreases as coolant temperature in-
creases. For additional information, refer to
the “Starting and stopping the engine” sec-
tion of this manual.
Introduction1-3