2014 INFINITI QX50 check engine

8-16Maintenance and do-it-yourself
SDI1480C
1. Remove the cell plugs*A.
2. Add distilled water up to the UPPER LEVEL
*1line.
If the side of the battery is not clear,
check the distilled water level by
looking directly above the cell; the
condition
*1indicates OK and the
condition
*2needs more to be added.
3. Tighten cell plugs
*A.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
JUMP STARTING
If jump starting is necessary, see “Jump
starting” (P.6-8). If the engine does not
start by jump starting, the battery may
have to be replaced. Contact an INFINITI
retailer.CAUTION
. Do not ground accessories directly to the
battery terminal. Doing so will bypass
the variable voltage control system and
the vehicle battery may not charge
completely.
. Use electrical accessories with the en-
gine running to avoid discharging the
vehicle battery.
The variable voltage control system mea-
sures the amount of electrical discharge
from the battery and controls voltage
generated by the generator.
VARIABLE VOLTAGE CONTROL SYSTEM

SDI2119
VQ37VHR engine
1. Power steering fluid pump
2. Alternator
3. Crankshaft pulley
4. Air conditioner compressor
5. Drive belt auto-tensioner
WARNING
Be sure the ignition switch is in the OFF or
LOCK position before servicing drive belts.
The engine could rotate unexpectedly.
1. Visually inspect each belt for signs of
unusual wear, cuts, fraying or loosen- ess. If the belt is in poor condition or
loose, have it replaced or adjusted by
an INFINITI retailer.
2. Have the belts checked regularly for condition and tension in accordance
with the maintenance schedule in your
“INFINITI Service and Maintenance
Guide”.
WARNING
Be sure the engine and the ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to remove
the spark plugs. An incorrect socket can
damage the spark plugs.
Maintenance and do-it-yourself8-17
DRIVE BELTS SPARK PLUGS

8-22Maintenance and do-it-yourself
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is
normal and does not affect the function or
performance of the brake system.
Proper brake inspection intervals should
be followed.For additional information,
see the maintenance log section of your
“INFINITI Service and Maintenance Guide”
for maintenance intervals.
SDI1479A
ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher or lower
amperage rating than that specified on the
fuse box cover. This could damage the
electrical system or cause a fire.
If any electrical equipment does not
operate, check for an open fuse.
Be sure the ignition switch is pushed to the
OFF or LOCK position and the headlight
switch is turned to OFF. 1. Open the engine hood and remove the
battery cover.
2. Remove the fuse/fusible link holder cover.
3. Remove the fuse with the fuse puller.
FUSES

above symptoms are encountered, have
your vehicle checked at an INFINITI retailer
or other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
JVT0159X
1. API certification mark
2. API service symbol
ENGINE OIL AND OIL FILTER RE-
COMMENDATION
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see“Capacities and recommended fuel/
lubricants” (P.9-2). INFINITI recommends
the use of an energy conserving oil in
order to improve fuel economy.
Select only engine oils that meet the American Petroleum Institute (API) certifi-
cation or International Lubricant Standar-
dization and Approval Committee (ILSAC)
certification and SAE viscosity standard.
These oils have the API certification mark
on the front of the container. Oils which do
not have the specified quality label should
not be used as they could cause engine
damage.
Oil additives
INFINITI does not recommend the use of oil
additives. The use of an oil additive is not
necessary when the proper oil type is used
and maintenance intervals are followed.
Technical and consumer information9-5

condition”. Before taking the I/M test,
check the vehicle’ s inspection/mainte-
nance test readiness condition. Place the
ignition switch in the ON position without
starting the engine. If the Malfunction
Indicator Light (MIL) comes on steady for
20 seconds and then blinks for 10
seconds, the I/M test condition is “not
ready”. If the MIL does not blink after 20
seconds, the I/M test condition is “ready”.
Contact an INFINITI retailer to set the
“ready condition” or to prepare the vehicle
for testing. This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an
EDR is to record, in certain crash or near
crash-like situations, such as an air bag
deployment or hitting a road obstacle, data
that will assist in understanding how a
vehicle’s systems performed. The EDR is
designed to record data related to vehicle
dynamics and safety systems for a short
period of time, typically 30 seconds or
less. The EDR in this vehicle is designed to
record such data as:
. How various systems in your vehicle
were operating;
. Whether or not the driver and passen-
ger safety belts were buckled/fastened;
. How far (if at all) the driver was
depressing the accelerator and/or
brake pedal; and,
. How fast the vehicle was traveling.
. Sounds are not recorded.
These data can help provide a better
understanding of the circumstances in
which crashes and injuries occur.
NOTE: EDR data are recorded by your
vehicle only if a nontrivial crash situation
occurs; no data are recorded by the EDR
under normal driving conditions and no
personal data (e.g. name, gender, age and crash location) are recorded. However,
other parties, such as law enforcement,
could combine the EDR data with the type
of personally identifying data routinely
acquired during a crash investigation.
To read data recorded by an EDR, special
equipment is required and access to the
vehicle or the EDR is needed. In addition to
the vehicle manufacturer and INFINITI
retailer, other parties, such as law enforce-
ment, that have the special equipment, can
read the information if they have access to
the vehicle or the EDR. EDR data will only
be accessed with the consent of the vehicle
owner or lessee or as otherwise required or
permitted by law.
Technical and consumer information9-21
EVENT DATA RECORDERS (EDR)

10 Index
A
ABS (Anti-lock Braking System) ......................... 5-86
Adaptive front lighting system (AFS) .................. 2-37
Advanced air bag system .................................. 1-42
Aiming control, Adaptive front lighting
system (AFS) ..................................................... 2-37
Air bag systemAdvanced air bag system ............................. 1-42
Front passenger air bag and status light ...... 1-44
Front-seat mounted side-impact supplemental
air bag system ............................................. 1-47
Roof-mounted curtain side-impact
supplemental air bag system ....................... 1-47
Air bag warning labels ...................................... 1-50
Air bag warning light ............................... 1-50, 2-15
Air cleaner housing filter ................................... 8-18
Air conditioner
Air conditioner service ................................. 4-53
Air conditioner specification label ................ 9-12
Air conditioning system refrigerant and
lubricant recommendations .................. 4-53, 9-6
Automatic climate control ............................ 4-44
In-cabin microfilter ....................................... 4-52
Alarm, How to stop alarm (see vehicle
security system) ................................................ 2-29
Alcohol, drugs and driving .................................. 5-8
All-wheel drive (AWD) ........................................ 5-80
All-wheel drive (AWD) warning light .................. 2-11
Antenna ............................................................ 4-89
Anti-lock Braking System (ABS) ......................... 5-86 Anti-lock braking system (ABS) warning light .... 2-11
Appearance care
Exterior appearance care ................................ 7-2
Interior appearance care ................................ 7-4
Armrest ............................................................. 1-10
Around view monitor ......................................... 4-31
Audible reminders ............................................ 2-19
Audio operation precautions ............................. 4-53
Audio system .................................................... 4-53 Steering wheel audio controls ...................... 4-88
Autolight system ............................................... 2-34
Automatic Automatic climate control .................. 4-46, 4-48
Automatic transmission fluid (ATF) ............... 8-12
Climate control ............................................ 4-44
Door locks ..................................................... 3-5
Drive positioner ........................................... 3-26
Driving with automatic transmission ............ 5-14
Moonroof ..................................................... 2-53
Seat positioner ............................................ 3-26
Average fuel consumption and speed ................ 2-26
Avoiding collision and rollover ............................ 5-6
B
Back door (See lift gate) ................................... 3-18
Battery .............................................................. 8-15 Battery saver system ................................... 2-36
Intelligent Key .............................................. 8-24
Variable voltage control system ................... 8-16 Before starting the engine ................................ 5-12
Belts (See drive belts) ....................................... 8-17
Blind Spot Warning (BSW) system ..................... 5-27
Blind Spot Warning (BSW) system
warning light .................................................... 2-11
Bluetooth
®hands-free phone system
(models with navigation system) ....................... 4-91
Bluetooth
®hands-free phone system
(models without navigation system) ................ 4-102
Bluetooth
®streaming audio ............................. 4-80
Booster seats .................................................... 1-33
Brake Anti-lock Braking System (ABS) .................... 5-86
Brake fluid ................................................... 8-13
Brake system ............................................... 5-83
Parking brake operation ............................... 5-18
Warning light ............................................... 2-11
Break-in schedule ............................................. 5-78
Brightness control Display ON/OFF button ................................ 4-10
Instrument panel ......................................... 2-38
Bulb check/instrument panel ............................ 2-10
Bulb replacement .............................................. 8-26
C
Cabin air filter ................................................... 4-52
Capacities and recommended fuel/lubricants ...... 9-2
Car phone or CB radio ...................................... 4-90
Card holder ....................................................... 2-47

10-2
Cargo cover....................................................... 2-48
Cargo light ........................................................ 2-57
Catalytic converter, Three way catalyst ................ 5-3
CD/CF/USB memory care and cleaning ............. 4-87
Center multi-function control panel ..................... 4-3
Child restraints ................................................. 1-19 Booster seats ............................................... 1-33
LATCH system .............................................. 1-21
Precautions on child restraints ..................... 1-20
Child safety ...................................................... 1-17
Child safety rear door locks ................................ 3-6
Chimes Audible reminders ....................................... 2-19
Seat belt warning light and chime ............... 2-15
Circuit breaker, Fusible link............................... 8-23
Cleaning exterior and interior ....................... 7-2, 7-4
Climate control, Automatic climate control ........ 4-44
Clock ................................................................ 2-43
Coat hooks ....................................................... 2-47
Cockpit ............................................................... 2-3
Cold weather driving ......................................... 5-89
Compact Disc (CD) player (See audio system) ... 4-70
Compact spare tire ........................................... 8-40
Console box ...................................................... 2-46
Controller, Center multi-function control panel .... 4-6
Controls Control panel button ...................................... 4-3
INFINITI Controller .......................................... 4-6
Coolant Capacities and
recommended fuel/lubricants ........................ 9-2 Changing engine coolant ............................... 8-9
Checking engine coolant level ........................ 8-8
Corrosion protection ........................................... 7-7
Cover, Cargo cover ............................................ 2-48
Cruise control ................................................... 5-34 Fixed speed cruise control (on ICC system) ... 5-55
Cup holders ...................................................... 2-44
Current fuel consumption .................................. 2-26
D
Daytime running light system ........................... 2-36
Defroster switch, Rear window and outside mirror
defroster switch ................................................ 2-33
Dimensions ......................................................... 9-9
Distance Control Assist (DCA) system ................ 5-59
Distance Control Assist (DCA) system
warning light .................................................... 2-12
Distance to empty ............................................. 2-26
Door/lift gate open warning .............................. 2-23
Dot matrix liquid crystal display ....................... 2-19
Drive belts ........................................................ 8-17
Drive positioner ................................................ 3-26
Driving All-wheel drive (AWD) ................................... 5-80
All-wheel drive (AWD) safety precautions ....... 5-9 Cold weather driving .................................... 5-89
Driving with automatic transmission ............ 5-14
On-pavement and off-road driving .................. 5-7
Precautions when starting and driving ........... 5-3
DS (Drive Sport) mode ...................................... 5-16
DVD player operation ........................................ 4-72
E
Economy, Fuel ................................................... 5-80
Elapsed time ..................................................... 2-26
Elapsed time and trip odometer ........................ 2-26
Emission control information label .................... 9-11
Emission control system warranty ..................... 9-19
Engine Before starting the engine ........................... 5-12
Break-in schedule ........................................ 5-78
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................... 8-9
Changing engine oil and filter ...................... 8-10
Checking engine coolant level ........................ 8-8
Checking engine oil level ............................... 8-9
Coolant temperature gauge ............................ 2-8
Emergency engine shut off ........................... 5-11
Engine block heater ..................................... 5-91
Engine compartment check locations ............. 8-7
Engine cooling system ................................... 8-7
Engine oil ...................................................... 8-9
Engine oil and oil filter recommendation ........ 9-5
Engine oil replacement indicator .................. 2-24
Engine oil viscosity ........................................ 9-6
Engine serial number ................................... 9-11
Engine specifications ..................................... 9-7
Engine start operation indicator ................... 2-22
If your vehicle overheats .............................. 6-10
Starting the engine ...................................... 5-13
Entry/exit function, Automatic drive positioner ... 3-26

Low tire pressure warning system
(See tire pressure monitoring system (TPMS)) ..... 5-4
Low washer fluid warning ................................. 2-23
Luggage hooks ................................................. 2-48
M
MaintenanceBattery ......................................................... 8-15
General maintenance ..................................... 8-2
Indicators for maintenance ........................... 2-24
Inside the vehicle .......................................... 8-3
Maintenance precautions ............................... 8-5
Maintenance requirements ............................. 8-2
Outside the vehicle ........................................ 8-2
Seat belt maintenance ................................. 1-17
Malfunction indicator light (MIL) ....................... 2-17
Map lights ........................................................ 2-55
Master warning light ......................................... 2-15
Mechanical key (Intelligent Key system) .............. 3-3
Memory storage, Automatic drive positioner ..... 3-28
Meter Trip computer .............................................. 2-26
Meters and gauges ............................................. 2-6 Instrument brightness control ...................... 2-38
Mirror Inside mirror ................................................ 3-23
Outside mirrors ............................................ 3-24
Vanity mirror ................................................ 3-26
Monitor, Rearview monitor ................................ 4-24
Moonroof .......................................................... 2-53
N
New vehicle break-in ......................................... 5-78
No key warning ................................................. 2-22
O
Odometer............................................................ 2-7
Off-road recovery ................................................ 5-7
Oil Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine oil and filter ...................... 8-10
Checking engine oil level ............................... 8-9
Engine oil ...................................................... 8-9
Engine oil viscosity ........................................ 9-6
Oil filter replacement indicator ..................... 2-24
Operation, Indicators for operation ................... 2-22
Outside air temperature .................................... 2-27
Outside mirrors ................................................. 3-24
Overheat, If your vehicle overheats ................... 6-10
Owner’s Manual/Service Manual
order information .............................................. 9-22
P
Panic alarm ...................................................... 3-15
Parking Brake break-in ............................................. 5-83
Parking brake operation ............................... 5-18
Parking brake release warning ..................... 2-22 Parking on hills ........................................... 5-82
Personal lights .................................................. 2-56
Phone Bluetooth
®hands-free phone system
(models with navigation system) .................. 4-91
Bluetooth
®hands-free phone system
(models without navigation system) ........... 4-102
Car phone or CB radio ................................. 4-90
Power Front seat adjustment .................................... 1-3
Power door lock ............................................. 3-4
Power outlet ................................................ 2-43
Power steering fluid ..................................... 8-12
Power steering system ................................. 5-83
Power windows ............................................ 2-51
Precautions
All-wheel drive (AWD) driving safety ............... 5-9
Audio operation ........................................... 4-53
Braking precautions ..................................... 5-83
Child restraints ............................................ 1-20
Cruise control .............................................. 5-34
Lane departure warning (LDW) system ......... 5-20
Maintenance .................................................. 8-5
On-pavement and off-road driving .................. 5-7
Seat belt usage ........................................... 1-11 Supplemental restraint system ..................... 1-37
When starting and driving .............................. 5-3
Preview function ............................................... 5-84
Preview function (for Intelligent cruise
control system) ................................................. 5-58
Preview Function warning light .......................... 2-15
10-5