check engine light INFINITI QX80 2014 Service Manual

8-4Maintenance and do-it-yourself
fraying, wear or damage.
Seats:Check seat position controls such as
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head restraints/headrests
move up and down smoothly and that the
locks (if so equipped) hold securely in all
latched positions.
Steering wheel: Check for changes in the
steering conditions, such as excessive free
play, hard steering or strange noises.
Warning lights and chimes: Make sure that
all warning lights and chimes are operating
properly.
Windshield defroster: Check that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating
the heater or air conditioner.
Windshield wiper and washer*: Check that
the wipers and washer operate properly
and that the wipers do not streak.
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).
Battery*: Check the fluid level in each cell. It should be between the MAX and MIN
lines. Vehicles operated in high tempera-
tures or under severe condition require
frequent checks of the battery fluid level.
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1.
Installation or extended use of electro-
nic 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 MAX and
MIN lines on the reservoir.
Engine coolant level*: Check the coolant
level when the engine is cold.
Engine drive belts*: Make sure that no belt
is frayed, worn, cracked or oily.
Engine oil level*: Check the level after
parking the vehicle on a level spot and turning off the engine. Wait more than 15
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, im-
mediately have the exhaust system in-
spected by an INFINITI retailer. (See
“Precautions when starting and driving”
in the “5. Starting and driving” section for
exhaust gas (carbon monoxide).)
Fluid leaks: Check 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 immediately.
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.

SDI2528
Engine oil and filter
1. Place a large drain pan under the drainplug.
2. Remove the oil filler cap.
3. Remove the drain plug
*1with a
wrench and completely drain the oil.
CAUTION
Be careful not to burn yourself, as the
engine oil is hot.
.Waste oil must be disposed of
properly.
.Check your local regulations.
4. (Perform steps 4 to 7 only when the engine oil filter change is needed.)
Loosen the oil filter
*2with an oil filter
wrench. Remove the oil filter by turning
it by hand.
5. Wipe the engine oil filter mounting surface with a clean rag.
CAUTION
Be sure to remove any old rubber gasket
remaining on the mounting surface of the
engine. Failure to do so could lead to engine
damage.
6. Coat the gasket on the new filter withclean engine oil.
7. Screw in the oil filter clockwise until a slight resistance is felt, then tighten
additionally more than 2/3 turn.
Oil filter tightening torque:11 to 15 ft-lb
(15 to 21 N·m)
8. Clean and re-install the drain plug with a new washer. Securely tighten the
drain plug with a wrench. Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 N·m)
Do not use excessive force.
9. Refill engine with recommended oil and install the oil filler cap securely.
CAUTION
The dipstick must be inserted in place to
prevent oil spillage from the dipstick hole
while filling the engine with oil.
See “Capacities and recommended
fuel/lubricants” in the“9. Technical
and consumer information” section for
drain and refill capacity. The drain and
refill capacity depends on the oil
temperature and drain time. Use these
specifications for reference only. Al-
ways use the dipstick to determine the
proper amount of oil in the engine.
10. Start the engine and check for leakage around the drain plug and the oil filter.
Correct as required.
11. Turn the engine off and wait more than 15 minutes. Check the oil level with the
Maintenance and do-it-yourself8-11

8-22Maintenance and do-it-yourself
Contact an INFINITI retailer if checking or
replacement is required.If the brakes do not operate properly, have
the brakes checked by an INFINITI retailer.
SELF-ADJUSTING BRAKES
Your vehicle is equipped with self-adjust-
ing brakes.
The disc-type brakes self-adjust every time
the brake pedal is applied.
WARNING
See an INFINITI retailer for a brake system
check if the brake pedal height does not
return to normal.
BRAKE PAD WEAR WARNING
The disc brake pads have audible wear
warnings. When a brake pad requires
replacement, it will make a high pitched
scraping sound when the vehicle is in
motion. This scraping sound will first occur
only when the brake pedal is depressed.
After more wear of the brake pad, the
sound will always be heard even if the
brake pedal is not depressed. Have the
brakes checked as soon as possible if the
wear warning sound is heard.
Under some driving or climate conditions,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.
BRAKE BOOSTER
Check the brake booster function as
follows:
1. With the engine off, depress and release the foot brake pedal more than
20 times. When the foot brake pedal
movement (distance of travel) remains
the same from one pedal application to
the next, continue on to the next step.
2. While depressing the foot brake pedal, start the engine.
3. With the foot brake pedal depressed, stop the engine. Keep the pedal de-
pressed for about 30 seconds.
4. Run the engine for 1 minute without depressing the foot brake pedal, then
turn it off. Depress the foot brake pedal
REAR WINDOW WIPER BLADES BRAKES

several times. The pedal travel distance
will decrease gradually with each de-
pression as the hydraulic pressure
decreases.
If the brakes do not operate properly, have
the brakes checked by an INFINITI retailer.
SDI2518
SDI2532
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.
1. Be sure the ignition switch is pushed to the OFF or LOCK position and the
headlight switch is turned to OFF.
2. Open the engine hood and remove the cover on the battery.
3. Remove the fuse/fusible link holder cover
*1,*2or*3.
4. Remove the fuse with the fuse puller.
Maintenance and do-it-yourself8-23
FUSES

fuel is not covered by the INFINITI new
vehicle limited warranty.
. If a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It
should also contain a suitable amount
of appropriate cosolvents and corro-
sion inhibitors. If not properly formu-
lated with appropriate cosolvents and
corrosion inhibitors, such methanol
blends may cause fuel system damage
and/or vehicle performance problems.
At this time, sufficient data is not
available to ensure that all methanol
blends are suitable for use in INFINITI
vehicles.
If any undesirable driveability problems
such as engine stalling or hard hot starting
are experienced after using oxygenate-
blend fuels, immediately change to a
non-oxygenate fuel or a fuel with a low
blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygenates
can cause paint damage.
E-15 fuel
E-15 fuel is a mixture of approximately
15% fuel ethanol and 85% unleaded gasoline. E-15 can only be used in vehicles
designed to run on E-15 fuel. Do not use E-
15 in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified with small, square,
orange and black label with the common
abbreviation or the appropriate percentage
for that region.
E-85 fuel
E-85 fuel is a mixture of approximately
85% fuel ethanol and 15% unleaded
gasoline. E-85 can only be used in a
Flexible Fuel Vehicle (FFV). Do not use E-
85 fuel in your vehicle. U.S. government
regulations require fuel ethanol dispensing
pumps to be identified by a small, square,
orange and black label with the common
abbreviation or the appropriate percentage
for that region.
Aftermarket fuel additives
INFINITI does not recommend the use of
any aftermarket fuel additives (Example:
fuel injector cleaner, octane booster, intake
valve deposit removers, etc.) which are
sold commercially. Many of these additives
intended for gum, varnish or deposit
removal may contain active solvent or
similar ingredients that can be harmful tothe fuel system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than recommended above can
cause persistent, heavy spark knock.
(Spark knock is a metallic rapping noise.)
If severe, this can lead to engine damage.
If you detect a persistent heavy spark
knock even when using gasoline of the
stated octane rating, or if you hear steady
spark knock while holding a steady speed
on level roads, have an INFINITI retailer
correct the condition. Failure to correct the
condition is misuse of the vehicle, for
which INFINITI is not responsible.
Incorrect ignition timing will result in
knocking, after-run or overheating. This in
turn may cause excessive fuel consumption
or damage to the engine. If any of the
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
Technical and consumer information9-5

the vehicle may be reset to a“not ready
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 “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 information9-33
EVENT DATA RECORDERS (EDR)

10 Index
A
ABS (Anti-lock Braking System) ....................... 5-113
Adaptive front lighting system (AFS) .................. 2-41
Advanced air bag system .................................. 1-61
Aiming controlAdaptive front lighting system (AFS) ............. 2-41
Headlights ................................................... 2-41
Air bag system
Advanced air bag system ............................. 1-61
Front passenger air bag and status light ...... 1-63
Front-seat mounted side-impact supplemental
air bag system ............................................. 1-67
Roof-mounted curtain side-impact and rollover
supplemental air bag system ....................... 1-67
Air bag warning labels ...................................... 1-69
Air bag warning light ............................... 1-70, 2-17
Air cleaner housing filter ................................... 8-19
Air conditioner Advanced Climate Control System ............... 4-42
Air conditioner service ................................. 4-47
Air conditioner specification label ................ 9-13
Air conditioning system refrigerant and
lubricant recommendations .................. 4-47, 9-7
Automatic climate control .................. 4-39, 4-41
In-cabin microfilter ....................................... 4-46
Alarm, How to stop alarm (see vehicle
security system) ................................................ 2-32
Alcohol, drugs and driving .................................. 5-9
Antenna ............................................................ 4-82
Anti-lock Braking System (ABS) ....................... 5-113 Anti-lock braking system (ABS) warning light .... 2-12
Appearance care
Exterior appearance care ................................ 7-2
Interior appearance care ................................ 7-4
Armrest ............................................................. 1-18
Around View
TMMonitor ..................................... 4-21
Audible reminders ............................................ 2-21
Audio operation precautions ............................. 4-47
Audio system .................................................... 4-47 Steering wheel audio controls ...................... 4-81
Auto closure ..................................................... 3-24
Autolight system ............................................... 2-39
Automatic Automatic transmission fluid (ATF) ............... 8-12
Climate control .................................. 4-39, 4-41
Door locks ..................................................... 3-6
Drive positioner ........................................... 3-33
Driving with automatic transmission ............ 5-17
Moonroof ..................................................... 2-64
Seat positioner ............................................ 3-33
Average fuel consumption and speed ................ 2-29
Avoiding collision and rollover ............................ 5-7
B
Back door (See lift gate) ................................... 3-20
Back-up Collision Intervention (BCI) system ....... 5-31
Battery .............................................................. 8-16
Battery saver system ......................... 2-40, 2-65
Intelligent Key .............................................. 8-25 Variable voltage control system ................... 8-17
BCI system operation ........................................ 5-47
Before starting the engine ................................ 5-14
Belts (See drive belts) ....................................... 8-18
Blind Spot Intervention (BSI) ON
indicator light ................................................... 2-19
Blind Spot Intervention (BSI) system ................. 5-31
Blind Spot Warning (BSW) system ..................... 5-31
Blind Spot Warning (BSW)/Blind Spot Intervention
(BSI) system warning light ................................ 2-13
Bluetooth
®Hands-Free Phone System .............. 4-98
Bluetooth®streaming audio ............................. 4-72
Booster seats .................................................... 1-51
Brake
Anti-lock Braking System (ABS) .................. 5-113
Brake booster .............................................. 8-22
Brake fluid ......................................... 8-13, 8-14
Brake system ............................................. 5-110
Parking brake operation ............................... 5-21
Warning light ............................................... 2-13
Break-in schedule ............................................. 5-98
Brightness control Display ON/OFF button .................................. 4-7
Instrument panel ......................................... 2-43
Bulb check/instrument panel ............................ 2-12
Bulb replacement .............................................. 8-28

10-2
C
Cabin air filter ................................................... 4-46
Capacities and recommended fuel/lubricants ...... 9-2
Car phone or CB radio ...................................... 4-98
Cargo floor box ................................................. 2-60
Cargo light ........................................................ 2-68
Catalytic converter, Three way catalyst ................ 5-3
CD/CF/USB memory care and cleaning ............. 4-80
Center multi-function control panel ..................... 4-3
Child restraints ................................................. 1-34Booster seats ............................................... 1-51
LATCH system .............................................. 1-36
Precautions on child restraints ..................... 1-34
Top tether strap ........................................... 1-39
Child safety ...................................................... 1-32
Child safety rear door lock .................................. 3-6
Chimes Audible reminders ....................................... 2-21
Seat belt warning light and chime ............... 2-17
Circuit breaker, Fusible link............................... 8-24
Cleaning exterior and interior ....................... 7-2, 7-4
Climate control Automatic climate control .................. 4-39, 4-41
Clock ................................................................ 2-51
Coat hooks ....................................................... 2-59
Cockpit ............................................................... 2-3
Cold weather driving ....................................... 5-117
Compact Disc (CD) player (See audio system) ... 4-63
Console box ...................................................... 2-57
Controller, Center multi-function control panel .... 4-4 Controls
Control panel button ...................................... 4-3
INFINITI Controller .......................................... 4-4
Coolant
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................... 8-9
Checking engine coolant level ........................ 8-9
Corrosion protection ........................................... 7-7
Cruise control ................................................... 5-54
Fixed speed cruise control (on ICC system) ... 5-74
Intelligent cruise control (ICC) system .......... 5-56
Cup holders ...................................................... 2-54
D
Daytime running light system ........................... 2-41
Dimensions ....................................................... 9-10
Distance Control Assist (DCA) system ................ 5-78
Distance Control Assist (DCA) system
warning light .................................................... 2-14
Dot matrix liquid crystal display ....................... 2-22
Drive belts ........................................................ 8-18
Drive positioner ................................................ 3-33
Driving Cold weather driving .................................. 5-117
Driving with automatic transmission ............ 5-17
On-pavement and off-road driving .................. 5-8
Precautions when starting and driving ........... 5-3
Safety precautions ......................................... 5-9
Dual head restraint DVD system ........................ 4-83 DVD (Digital Versatile Disc) player operation ..... 4-64
E
Economy, Fuel ................................................. 5-100
Elapsed time ..................................................... 2-29
Emission control information label .................... 9-12
Emission control system warranty ..................... 9-31
Engine
Before starting the engine ........................... 5-14
Break-in schedule ........................................ 5-98
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................... 8-9
Changing engine oil and filter ...................... 8-10
Checking engine coolant level ........................ 8-9
Checking engine oil level ............................. 8-10
Coolant temperature gauge ............................ 2-8
Emergency engine shut off ........................... 5-13
Engine block heater ................................... 5-118
Engine compartment check locations ............. 8-7
Engine cooling system ................................... 8-8
Engine oil .................................................... 8-10
Engine oil and oil filter recommendation ........ 9-6
Engine oil replacement indicator .................. 2-27
Engine oil viscosity ........................................ 9-7
Engine serial number ................................... 9-12
Engine specifications ..................................... 9-8
Engine start operation indicator ................... 2-24
If your vehicle overheats .............................. 6-14
Oil pressure gauge ........................................ 2-9
Protection mode .......................................... 5-16

Low tire pressure warning light ......................... 2-15
Low tire pressure warning system
(See tire pressure monitoring system (TPMS)) ..... 5-4
Luggage hooks ................................................. 2-59
M
MaintenanceBattery ......................................................... 8-16
General maintenance ..................................... 8-2
Inside the vehicle .......................................... 8-3
Maintenance indicators ................................ 2-27
Maintenance precautions ............................... 8-5
Maintenance requirements ............................. 8-2
Outside the vehicle ........................................ 8-2
Seat belt maintenance ................................. 1-31
Malfunction indicator light (MIL) ....................... 2-20
Map lights ........................................................ 2-66
Master warning light ......................................... 2-17
Mechanical key (Intelligent Key system) .............. 3-3
Memory storage, Automatic drive positioner ..... 3-34
Meter Trip computer .............................................. 2-28
Meters and gauges ............................................. 2-6 Instrument brightness control ...................... 2-43
Mirror Inside mirror ................................................ 3-30
Outside mirrors ............................................ 3-30
Vanity mirror ................................................ 3-32
Moonroof .......................................................... 2-63
Moving Object Detection (MOD) ........................ 4-32
N
New vehicle break-in ......................................... 5-98
O
Odometer............................................................ 2-7
Off-road recovery ................................................ 5-8
Oil
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine oil and filter ...................... 8-10
Checking engine oil level ............................. 8-10
Engine oil .................................................... 8-10
Engine oil pressure gauge .............................. 2-9
Engine oil viscosity ........................................ 9-7
Oil filter replacement indicator ..................... 2-27
Operation, operational indicators ...................... 2-24
Outside air temperature .................................... 2-29
Outside mirrors ................................................. 3-30
Overheat, If your vehicle overheats ................... 6-14
Owner’s Manual/Service Manual
order information .............................................. 9-34
P
Panic alarm ...................................................... 3-17
Parking Brake break-in ........................................... 5-110
Parking brake operation ............................... 5-21
Parking on hills ......................................... 5-108 Phone
Bluetooth
®Hands-Free Phone System ......... 4-98
Car phone or CB radio ................................. 4-98
Pocket .............................................................. 2-58
Power
Front seat adjustment .................................... 1-4
Power door lock ............................................. 3-4
Power outlet ................................................ 2-52
Power steering fluid ..................................... 8-13
Power steering system ............................... 5-110
Power windows ............................................ 2-61
Precautions Audio operation ........................................... 4-47
Braking precautions ................................... 5-110
Child restraints ............................................ 1-34
Cruise control .............................................. 5-54
Driving safety ................................................. 5-9
Lane departure warning (LDW) system ......... 5-22
Maintenance .................................................. 8-5
On-pavement and off-road driving .................. 5-8
Precautions on BCI system ........................... 5-51
Precautions on Blind Spot
Intervention system ..................................... 5-38
Seat belt usage ........................................... 1-21
Supplemental restraint system ..................... 1-55
When starting and driving .............................. 5-3
Preview function ............................................. 5-111
Preview Function warning light .......................... 2-17
Push starting .................................................... 6-13
Push-button ignition switch .............................. 5-11
10-5