2014 NISSAN PATHFINDER HYBRID engine control

13.Use D (Drive)
● Use the D (Drive) and drive with the Over
Drive on as much as possible
● Driving with the Over Drive OFF or in the
L (Low) position may cause the engine to
run longer than necessary and reduce
fuel economy
This system uses microphones
1located inside
the vehicle to detect engine booming sound. The
system then automatically produces a muted en-
gine booming sound through the speakers and
woofer (if so equipped) to reduce engine boom-
ing sound.
NOTE:
To operate the active noise control system
properly:
● Do not cover the speakers or woofer (if so
equipped) .
● Do not cover the microphones.
Front Microphone
LSD2157
Rear Microphone
LSD2158
ACTIVE NOISE CONTROL
5-6Starting and driving

●Do not change or modify speakers including
the woofer and any audio related compo-
nents such as the amplifier.
● Do not make any modification including
sound deadening or modifications around
the microphones or speakers.WARNING
Your brake system may not be working
properly if the hydraulic brake warning
light and the electronically controlled
brake system warning light is on. Driving
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 driving it could be
dangerous.
BRAKE PRECAUTIONS
Vacuum-assisted brakes
The brake booster aids braking by using engine
vacuum. If the hybrid system is turned off, you can
stop the vehicle by depressing the brake pedal.
However, greater foot pressure on the brake
pedal will be required to stop the vehicle and
stopping distance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brake pads faster, and reduce gas mileage. To help reduce brake wear and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result in
loss of vehicle control.
When applying the brakes, you may hear a sound
coming from the braking system. This is normal.
WARNING
While driving on a slippery surface, be
careful when braking, accelerating or
downshifting. Abrupt braking or acceler-
ating could cause the wheels to skid and
result in an accident.
BRAKE SYSTEM
Starting and driving5-7

CAUTION
If the green READY light does not come
on, press the START button to turn the
hybrid system OFF. Carefully disconnect
the negative cable then the positive cable.
Have vehicle taken to dealership for
repair.9. After the green READY light in the meter display comes ON, carefully disconnect the
negative cable and then the positive cable.
10. Replace the vent caps (if so equipped) . Be sure to dispose of the cloth used to cover
the vent holes as it may be contaminated
with corrosive acid.
WARNING
●Do not continue to drive if your vehicle
overheats. Doing so could cause engine
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 reser-
voir 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 and
the illumination of the engine oil pressure/engine
coolant temperature high indicator light) , 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, apply the parking brake and move the shift lever to
P (Park) .
Do not turn the NISSAN PUREDRIVE™
Hybrid System off. 2. Turn off the air conditioner. Open all the
windows, move the heater or air conditioner
temperature control to maximum hot and fan
control to high speed.
3. Get out of the vehicle. Look and listen for steam or coolant escaping from the radiator
before opening the hood. (If steam or cool-
ant is escaping, turn off the engine.) Do not
open the hood further until no steam or
coolant can be seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the en-
gine, stand clear to prevent getting
burned.
5. Also check if the cooling fan is running. The radiator hoses and radiator should not leak
water. If the coolant is leaking or the cooling
fan does not run, stop the hybrid system.
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 coolant is leaking,
the water pump belt is missing or loose, or
the cooling fan does not run, stop the en-
gine.
IF YOUR VEHICLE OVERHEATS
In case of emergency6-5

8 Maintenance and do-it-yourself
Explanation of general maintenance items.........8-2
Engine compartment check locations ................8-4
QR25DER engine ..............................8-4
Inverter cooling system .............................8-5
Checking inverter coolant level ...................8-6
Changing inverter coolant .......................8-6
Engine oil .........................................8-6
Checking engine oil level ........................8-6 Changing engine oil
............................8-7
Changing engine oil filter ........................8-8
12-Volt Battery ....................................8-9
Variable-voltage control system ....................8-10
Drive belt ........................................ 8-11
Engine compartment ........................... 8-12
Exterior and interior lights .......................8-13

Parking brakeCheck the parking brake opera-
tion regularly. The vehicle should be securely held
on a fairly steep hill with only the parking brake
applied. If the parking brake needs adjustment,
see a NISSAN dealer.
Seats Check seat position controls such as seat
adjusters, seatback recliner, etc. to ensure they
operate smoothly and all latches lock securely in
every position. Check that the head
restraints/headrests move up and down
smoothly and the locks (if so equipped) hold
securely in all latched positions.
Seat belts Check that all parts of the seat belt
system (for example, buckles, anchors, adjusters
and retractors) operate properly and smoothly,
and are installed securely. Check the belt web-
bing for cuts, fraying, wear or damage.
Steering wheel Check for changes in the steer-
ing system, such as excessive freeplay, hard
steering or strange noises.
Warning lights and chimes Make sure all
warning lights and chimes are operating properly.
Windshield wiper and washer* Check that
the wipers and washer operate properly and that
the wipers do not streak. Windshield defroster
Check that the air
comes out of the defroster outlets properly and in
sufficient quantity when operating the heater or
air conditioner.
Under the hood and vehicle
The maintenance items listed here should be
checked periodically (for example, each time you
check the engine oil or refuel) .
12–volt Battery* Except for maintenance-free
battery, check the fluid level in each cell. It should
be between the MAX and MIN lines. Vehicles
operated in high temperatures or under severe
conditions require frequent checks of the battery
fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electronic
accessories that consume battery power
when the engine is not running (Phone
chargers, GPS, DVD players, etc.) .
2. Vehicle is not driven regularly and/or
only driven short distances. In these cases,
the battery may need to be charged to
maintain battery health. Brake fluid level*
Make sure that the brake fluid
level is between the MIN and MAX lines on the
reservoir.
Engine coolant level* Check the coolant level
when the engine is cold. Make sure that the
coolant level is
between the MAXandMIN lines on the reser-
voir.
Inverter coolant level* Check the coolant level
when the inverter is cold. Make sure the coolant
level is between the “MAX” and “MIN” lines on the
reservoir.
Engine drive belts* Make sure the drive belts
are not frayed, worn, cracked or oily.
Engine oil level* Check the level after parking
the vehicle on a level surface with the engine off.
Wait more than 10 minutes for the oil to drain
back into the oil pan.
Exhaust system Make sure there are no loose
supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of
exhaust fumes, immediately have the exhaust
system inspected by a NISSAN dealer. See the
carbon monoxide warning in the “Starting and
driving” section of this manual.
Maintenance and do-it-yourself8-3

Fluid leaksCheck under the vehicle for fuel, oil,
water or other fluid leaks after the vehicle has
been parked for a while. Water dripping from the
air conditioner after use is normal. If you should
notice any leaks or if gasoline fumes are evident,
check for the cause and have it corrected imme-
diately.
Power steering fluid level* and lines Check
the level when the fluid is cold, with the engine
off. Check the lines for proper attachment, leaks,
cracks, etc.
Radiator and hoses Check the front of the
radiator and clean off any dirt, insects, leaves,
etc., that may have accumulated. Make sure the
hoses have no cracks, deformation, rot or loose
connections.
Underbody The underbody is frequently ex-
posed to corrosive substances such as those
used on icy roads or to control dust. It is very
important to remove these substances from the
underbody, otherwise rust may form on the floor
pan, frame, fuel lines and exhaust system. At the
end of winter, the underbody should be thor-
oughly flushed with plain water, in those areas
where mud and dirt may have accumulated. See
the “Appearance and care” section of this
manual.
Windshield-washer fluid* Check that there is
adequate fluid in the reservoir.
QR25DER ENGINE
1. Power steering fluid reservoir
2. Engine coolant reservoir
3. Drive belt location
4. Fuse box 5. Engine oil filler cap
6. Inverter coolant reservoir
7. Brake fluid reservoir
8. Air cleaner
9. Fusible link box and remote positive
battery terminal
NJE0001
ENGINE COMPARTMENT CHECK
LOCATIONS
8-4Maintenance and do-it-yourself

NOTE:
Care should be taken to avoid situations
that can lead to potential battery discharge
and potential no-start conditions such as:
1. Installation or extended use of electronic
accessories that consume battery power
when the engine is not running (Phone
chargers, GPS, DVD players, etc.)
2. Vehicle is not driven regularly and/or
only driven short distances. In these cases,
the battery may need to be charged to
maintain battery health.
WARNING
●Do not expose the 12–volt battery to
flames, an electrical spark or a ciga-
rette. Hydrogen gas generated by the
12–volt battery is explosive. Explosive
gases can cause blindness or injury. Do
not allow battery fluid to contact your
skin, eyes, fabrics or painted surfaces.
Sulfuric acid can cause blindness or in-
jury. After touching a 12–volt battery or
battery cap, do not touch or rub your
eyes. Thoroughly wash your hands. If
the acid contacts your eyes, skin or
clothing, immediately flush with water
for at least 15 minutes and seek medical
attention. ●
If the 12-volt battery needs to be re-
placed, use a battery of the same de-
sign. Using the wrong battery can cause
hydrogen gas to build up in the vehicle ,
which could lead to explosion and per-
sonal injury.
● When working on or near a 12–volt bat-
tery, always wear suitable eye protec-
tion and remove all jewelry.
● Battery posts, terminals and related ac-
cessories contain lead and lead com-
pounds. Wash hands after handling.
● Keep 12–volt battery out of the reach of
children.CAUTION
● Do not ground accessories directly to
the battery terminal. Doing so will by-
pass the variable-voltage control sys-
tem and the vehicle battery may not
charge completely.
● Use electrical accessories with the en-
gine running to avoid discharging the
vehicle battery.
Your vehicle is equipped with a variable-voltage
control system. This system measures the
amount of electrical discharge from the battery
and controls voltage generated by the generator.
LDI2259
VARIABLE-VOLTAGE CONTROL
SYSTEM
8-10Maintenance and do-it-yourself

L
Light Brakelight(Seestoplight).........8-13
Bulb replacement ..............8-13
Chargewarninglight.............2-4
Warning/indicator lights and audible
reminders ...................2-3
Lowfuelwarninglight...............2-5
M
Maintenance Insidethevehicle...............8-2
Outsidethevehicle..............8-2
Under the hood and vehicle .........8-3
Meters and gauges ................2-2
O
Oil Capacities and recommended
fuel/lubricants .................9-2
Changing engine oil ..............8-7
Changing engine oil filter ...........8-8
Checking engine oil level ...........8-6
Engine oil ...................8-6
Engine oil and oil filter recommendation . . .9-4
P
Powermeter....................2-2 S
Starting Before starting the engine ..........5-3
Jump starting .................6-3
Starting the engine ..............5-4
Stoplight.....................8-13
T
Towing Towing load/specification ...........9-6
V
Variable voltage control system .........8-11
Vehicle does not start ...............6-2
W
Warning Anti-lock brake warning light .........2-3
Battery charge warning light .........2-4
Low fuel warning light .............2-5
Warning/indicator lights and audible
reminders ...................2-3
Warning lights ...................2-3
10-2