check engine light INFINITI Q50 HYBRID 2014 User Guide

8 Maintenance and do-it-yourself
Maintenance requirement.................................... 8-2
Scheduled maintenance .................................. 8-2
General maintenance....................................... 8-2
Where to go for service ................................... 8-2
General maintenance ........................................... 8-2 Explanation of maintenance items ................... 8-2
Maintenance precautions ..................................... 8-5
Engine compartment check locations ................... 8-7 VQ35HR engine ............................................... 8-7
Engine cooling system ......................................... 8-9
Checking engine coolant level ....................... 8-10
Changing engine coolant ............................... 8-10
Inverter cooling system...................................... 8-11
Checking inverter coolant level ...................... 8-12
Changing inverter coolant.............................. 8-12
Engine oil .......................................................... 8-12
Checking engine oil level............................... 8-12
Changing engine oil and filter ....................... 8-13
Automatic transmission fluid ............................. 8-15
Brake fluid......................................................... 8-15
Window washer fluid ......................................... 8-16
12-volt battery ................................................... 8-17 Checking battery fluid level ........................... 8-18
Jump starting ................................................ 8-18 Spark plugs ...................................................... 8-19
Replacing spark plugs ................................. 8-19
Air cleaner ........................................................ 8-20
Windshield wiper blades ................................... 8-21 Cleaning ...................................................... 8-21
Replacing..................................................... 8-21
Brakes .............................................................. 8-22 Self-adjusting brakes ................................... 8-22
Brake pad wear warning .............................. 8-22
Fuses ................................................................ 8-23
Engine compartment and trunk .................... 8-23
Passenger compartment............................... 8-24
Intelligent Key battery replacement ................... 8-25
Lights................................................................ 8-27 Exterior and interior lights ........................... 8-28
Wheels and tires ............................................... 8-30
Tire pressure ............................................... 8-30
Tire labeling ................................................ 8-33
Types of tires............................................... 8-35
Tire chains ................................................... 8-37
Changing wheels and tires........................... 8-38
Jacking up the vehicle and replacing tires .... 8-40

8-4Maintenance and do-it-yourself
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and that all
latches lock securely in every position.
Check that the head restraints 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).
12-volt 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 condition
require frequent checks of the battery fluid
level.
NOTE:
Care should be taken to avoid situations
that can lead to potential 12-volt battery
discharge and potential no-start condi-
tions such as:
1.
Installation or extended use of electro-
nic accessories that consume 12-volt
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 12-volt battery may
need to be charged to maintain 12-volt
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 INFINITI Direct Response
Hybrid
®System. 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”
(P.5-3).)
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.
Inverter coolant lebel: Check the coolant
level when the inverter is cold.
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
exposed to corrosive substances such as

8-14Maintenance and do-it-yourself
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 with
clean 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
(14.7 to 20.5 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” (P.9-2) for drain and
refill capacity. The drain and refill
capacity depends on the oil tempera-
ture and drain time. Use these specifi-
cations for reference only. Always 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
dipstick. Add engine oil if necessary.
After the operation
1. Install the engine undercover into
position as the following steps.
a. Pull the center of the small plasticclip out.
b. Hold the engine undercover into position.
c. Insert the clip through the under- cover into the hole in the frame, then
push the center of the clip in to lock
the clip in place.
d. Install the other bolts that hold the undercover in place. Be careful not

8-16Maintenance and do-it-yourself
JVM0053X
Check the fluid level in the reservoir. If the
fluid is below the MIN line
*2or the brake
warning light comes on, add Genuine
NISSAN Super Heavy Duty Brake Fluid or
equivalent DOT 3fluid up to the MAX line
*1. If fluid must be added frequently, the
system should be checked by an INFINITI
retailer.
JVM0253X
WARNING
Antifreeze is poisonous and should be
stored carefully in marked containers out
of the reach of children.
Fill the window washer fluid reservoir
periodically. Add window washer fluid
when the low window washer fluid warning
appears in the vehicle information display.
To fill the window washer fluid reservoir,
lift the cap off the reservoir and pour the
window washer fluid into the reservoir
opening. To check the window washer fluid level,
use your finger to plug the hole
*1of the
cap/tube assembly, then remove it from
the reservoir. If there is no fluid in the tube,
add fluid.
Add a washer solvent to the washer for
better cleaning. In the winter season, add a
windshield washer antifreeze. Follow the
manufacturer’s instructions for the mixture
ratio.
Refill the reservoir more frequently when
driving conditions require an increased
amount of window washer fluid.
Recommended fluid is Genuine NISSAN
Windshield Washer Concentrate Cleaner &
Antifreeze or equivalent.
CAUTION
. Do not substitute engine anti-freeze
coolant for window washer solution. This
may result in damage to the paint.
. Do not fill the window washer reservoir
with washer fluid concentrates at full
strength. Some methyl alcohol based
washer fluid concentrates may perma-
nently stain the grille if spilled while
filling the window washer reservoir.
WINDOW WASHER FLUID

JVM0255X
Engine compartment
JVM0322X
Trunk
ENGINE COMPARTMENT AND TRUNK
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 tothe OFF or LOCK position and the
headlight switch is turned to OFF.
2. Open the engine hood or trunk lid and to access the cover on the fuse/fusible
link holder.
3. Remove the fuse/fusible link holder cover.
4. Remove the fuse with the fuse puller.
SDI1754
5. If the fuse is open*A, replace it with a
new fuse
*B. Spare fuses are stored in
the passenger compartment fuse box.
6. If a new fuse also opens, have the electrical system checked and repaired
by an INFINITI retailer.
Fusible links
If any electrical equipment does not
operate and fuses are in good condition,
check the fusible links. If any of these
fusible links are melted, replace only with
genuine INFINITI parts.
Maintenance and do-it-yourself8-23
FUSES

9-6Technical and consumer information
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.

9-22Technical and consumer information
online at:
https://wwwapps.tc.gc.ca/Saf-Sec-
Sur/7/PCDB-BDPP/Index.aspx.
Additional information concerning
motor vehicle safety may be obtained
from Transport Canada’s Road Safety
Information Centre at 1-800- 333-
0371 or online at www.tc.gc.ca/
roadsafety (English speakers) or
www.tc.gc.ca/securiteroutiere
(French speakers).
To notify INFINITI of any safety con-
cerns please contact our Consumer
Information Centre toll free at 1-800-
361-4792.WARNING
A vehicle equipped with Intelligent All-
Wheel Drive (AWD) should never be tested
using a two wheel dynamometer (such as
the dynamometers used by some states for
emissions testing), or similar equipment.
Make sure you inform test facility personnel
that your vehicle is equipped with AWD
before it is placed on a dynamometer. Using
the wrong test equipment may result in
transmission damage or unexpected vehicle
movement which could result in serious
vehicle damage or personal injury.
Due to legal requirements in some states/
areas, your vehicle may be required to be
in what is called the“ready condition”for
an Inspection/Maintenance (I/M) test of
the emission control system.
The vehicle is set to the “ready condition”
when it is driven through certain driving
patterns. Usually, the “ready condition”
can be obtained by ordinary usage of the
vehicle.
If a powertrain system component is
repaired or the 12-volt battery is discon-
nected, the vehicle may be reset to a “notready condition”. Before taking the I/M
test, check the vehicle’s inspection/main-
tenance 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.
READINESS FOR INSPECTION/
MAINTENANCE (I/M) TEST (US only)

10-2
LATCH system .............................................. 1-21
Precautions on child restraints ..................... 1-19
Child safety ...................................................... 1-17
Child safety rear door lock .................................. 3-6
Chimes Audible reminders ....................................... 2-20
Seat belt warning light and chime ............... 2-17
Circuit breaker Fusible link .................................................. 8-23
Cleaning exterior and interior ....................... 7-2, 7-5
Clock ................................................................ 2-34
Coat hooks ....................................................... 2-53
Cockpit ............................................................... 2-3
Cold weather driving ....................................... 5-113
Compass ............................................................. 2-9
Console box ...................................................... 2-52
Coolant Capacities and recommended
fuel/ lubricants .............................................. 9-2
Changing engine coolant ............................. 8-10
Checking engine coolant level ...................... 8-10
Corrosion protection ........................................... 7-8
Courtesy light ................................................... 2-61
Cruise control ................................................... 5-56 Fixed speed cruise control (on ICC system) ... 5-74
Intelligent Cruise Control (ICC) system .......... 5-58
Cruise indicator ................................................ 2-27 Cup holders ...................................................... 2-49
Current fuel consumption .................................. 2-33D
Daytime running light system ........................... 2-45
Defroster switch Rear window and outside mirror
defroster switch ........................................... 2-41
Dimensions ....................................................... 9-10
Direct adaptive steering .................................. 5-104
Direct Response Hybrid
®System warning light
(hybrid system warning light) ............................ 2-14
Distance Control Assist (DCA) system ................ 5-79
Distance to empty ............................................. 2-33
Drive positioner ................................................ 3-28
Driver assist system indicator ........................... 2-28
Driving Cold weather driving .................................. 5-113
Driving with automatic transmission ............ 5-14
Precautions when starting and driving ........... 5-3
Driving aids ...................................................... 2-34
E
ECO drive indicator light ................................... 2-18
ECO mode ......................................................... 5-21
ECO pedal system ............................................. 5-22
Economy Fuel ........................................................... 5-100
Efficient use of your vehicle ............ Hybrid System-8
Elapsed time ..................................................... 2-33
Elapsed time and trip odometer ........................ 2-33
Emergency shut-off system ............. Hybrid System-4
Emission control information label .................... 9-12 Emission control system warranty ..................... 9-20
Energy flow ..................................... Hybrid System-5
Energy monitor ................................................. 2-31
Energy monitors .............................. Hybrid System-5
Engine
Break-in schedule ........................................ 5-99
Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine coolant ............................. 8-10
Changing engine oil and filter ...................... 8-13
Checking engine coolant level ...................... 8-10
Checking engine oil level ............................. 8-12
Emergency hybrid system shut off ............... 5-12
Engine block heater ................................... 5-114
Engine compartment check locations ............. 8-7
Engine cooling system ................................... 8-9
Engine oil .................................................... 8-12
Engine oil and filter replacement indicator ... 2-29
Engine oil and oil filter recommendation ........ 9-6
Engine oil viscosity ........................................ 9-7
Engine serial number ................................... 9-12
Engine specifications ..................................... 9-8
If your vehicle overheats ................................ 6-7
Engine coolant temperature gauge .................... 2-33
Entry/exit function
Automatic drive positioner ........................... 3-28
EV mode odometer and twin trip odometer ....... 2-31
Event Data Recorders (EDR) ............................... 9-23
Exhaust gas (carbon monoxide) .......................... 5-3

M
MaintenanceBattery ......................................................... 8-17
General maintenance ..................................... 8-2
Indicators for maintenance (vehicle
information display) ..................................... 2-29
Inside the vehicle .......................................... 8-3
Maintenance precautions ............................... 8-5
Maintenance requirements ............................. 8-2
Outside the vehicle ........................................ 8-2
Seat belt maintenance ................................. 1-16
Under the hood and vehicle ........................... 8-4
Malfunction Indicator Light (MIL) ....................... 2-19
Map lights ........................................................ 2-58
Master warning light ......................................... 2-17
Mechanical key (Intelligent Key system) .............. 3-3
Memory storage Automatic drive positioner ........................... 3-29
Meter Trip computer .............................................. 2-31
Meters and gauges ............................................. 2-6
Instrument brightness control ...................... 2-46
Mirror
Inside mirror ................................................ 3-25
Outside mirrors ............................................ 3-26
Vanity mirror ................................................ 3-28
Moonroof .......................................................... 2-56
N
NAVI Shift Control ............................................. 5-19
New vehicle break-in ......................................... 5-99
Noise and vibration ...................... Hybrid System-12
O
Odometer............................................................ 2-7
Off-road recovery ................................................ 5-8
Oil Capacities and
recommended fuel/lubricants ........................ 9-2
Changing engine oil and filter ...................... 8-13
Checking engine oil level ............................. 8-12
Engine oil .................................................... 8-12
Engine oil viscosity ........................................ 9-7
One touch unlock sensor (See Intelligent
Key system) ........................................................ 3-9
Operation Indicators for operation ............................... 2-24
Operation of the INFINITI Direct Response
Hybrid
®System .............................. Hybrid System-4
Outside mirrors ................................................. 3-26
Overheat, If your vehicle overheats ..................... 6-7
Owner’s Manual/Service Manual
order information .............................................. 9-23
P
Panic alarm ...................................................... 3-16 Parking
Parking brake operation ............................... 5-20
Parking on hills ......................................... 5-103
Parking brake break-in .................................... 5-106
Personal lights .................................................. 2-59
PERSONAL mode ............................................... 5-23
Phone
Car phone or CB radio ................................... 4-3
Power Power door lock ............................................. 3-4
Power outlet ................................................ 2-48
Power steering system ............................... 5-104
Power windows ............................................ 2-54
Power steering warning light ............................. 2-17
Precautions Braking precautions ................................... 5-106
Child restraints ............................................ 1-19
Cruise control .............................................. 5-56
Maintenance .................................................. 8-5
Seat belt usage ........................................... 1-10Supplemental restraint system ..................... 1-37
When starting and driving .............................. 5-3
Pre-crash seat belts with comfort function ........ 1-12
Predictive forward collision warning system ...... 5-94
Push starting ...................................................... 6-7
Push-button ignition switch ..................... 5-10, 5-11
R
Radio Car phone or CB radio ................................... 4-3
Rain-sensing auto wiper system ........................ 2-40
10-5