heater INFINITI Q50 HYBRID 2018 User Guide

until it reaches normal operating tempera-
ture. Add coolant up to the MAX level.
Tighten the cap securely after adding engine
coolant.
If the cooling system requires coolant fre-
quently, have it checked. It is recommended
you visit an INFINITI retailer for this
service.
CHANGING ENGINE COOLANT
It is recommended that major cooling system
repairs be performed by an INFINITI retailer.
The service procedures can be found in the
appropriate INFINITI Service Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
. To avoid the danger of being scalded,
never change the coolant when the
engine is hot.
. Never remove the radiator cap when
the engine is hot. Serious burns could
be caused by high pressure fluid
escaping from the radiator.
. Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner as soon as possible.
. Keep coolant out of reach of children
and pets.
Engine coolant must be disposed of prop-
erly. Check your local regulations. The inverter cooling system is filled at the
factory with a pre-diluted mixture of 50%
Genuine NISSAN Long Life Antifreeze/
Coolant (blue) and 50% water to provide
year-round anti-freeze and coolant protec-
tion. The antifreeze solution contains rust
and corrosion inhibitors. Additional inverter
cooling system additives are not necessary.
WARNING
.
Never remove the inverter coolant
reservoir cap when the engine and
inverter are hot. Wait until the engine
and inverter cool down. Serious burns
could be caused by high pressure fluid
escaping from the coolant reservoir.
. The inverter coolant reservoir is
equipped with a pressure type cap.
To prevent engine and inverter da-
mage, use only a genuine NISSAN
inverter reservoir cap.
CAUTION
.Never use any additives in the cool-
ant such as radiator sealer in the
cooling system. This may cause da-
mage to electrical equipment such as
the motor and inverter, and also to
Do-it-yourself8-7
INVERTER COOLING SYSTEM

9-4Maintenance and schedules
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 tem-
peratures 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 discharge
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 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 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, immediately have
the exhaust system inspected. It is recom-
mended you visit an INFINITI retailer for this
service. (See “Precautions when starting and
driving” (P.5-4).)
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 level*: 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, defor-
mation, rot or loose connections.
Underbody: The underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances, otherwise rust will form on the
floor pan, frame, fuel lines and around the
exhaust system. At the end of winter, the
underbody should be thoroughly flushed
with plain water, being careful to clean
those areas where mud and dirt may accu-
mulate. For additional information, see
“Cleaning exterior” (P.7-2).
Windshield washer fluid*: Check that there
is adequate fluid in the reservoir.

11-2
Precautions on child restraints .................. 1-18
Child safety ............................................................ 1-16
Child safety rear door lock .................................. 3-6
Chimes Audible reminders .......................................... 2-17
Seat belt warning light and chime ............ 2-14
Circuit breaker
Fusible link ...................................................... 8-20
Cleaning exterior and interior .................... 7-2, 7-5
Clock ........................................................................\
2-30
Coat hooks ............................................................ 2-51
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-135
Console box ........................................................... 2-50
Coolant Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-7
Checking engine coolant level ...................... 8-6
Corrosion protection ............................................. 7-8
Courtesy light ....................................................... 2-59
Cruise control ....................................................... 5-70 Fixed speed cruise control (on
ICC system) ..................................................... 5-89
Intelligent Cruise Control (ICC) ................. 5-72
Cruise indicator .................................................... 2-23
Cup holders ........................................................... 2-47
Current fuel consumption ................................. 2-28D
Daytime running light system .......................... 2-40
Defroster switch Rear window and outside mirror
defroster switch ............................................. 2-36
Dimensions ............................................................ 10-9
Direct Adaptive Steering ................................. 5-126
Direct Response Hybrid
®System warning
light (hybrid system warning light) .................. 2-11
Distance Control Assist (DCA) ........................ 5-93
Distance to empty ............................................... 2-29
Drive positioner .................................................... 3-30
Driver assist system indicator .......................... 2-24
Driving Cold weather driving .................................. 5-135
Driving with automatic transmission ....... 5-15
Precautions when starting and driving ..... 5-4
Driving aids ............................................................ 2-29
E
ECO drive indicator light ................................... 2-15
ECO mode ............................................................. 5-21
ECO pedal system ............................................... 5-22
Economy Fuel .................................................................. 5-122
Efficient use of your vehicle ...... Hybrid System-8
Elapsed time ......................................................... 2-29
Elapsed time and trip odometer ..................... 2-29
Emergency shut-off system ...... Hybrid System-4
Emission control information label ............... 10-11 Emission control system maintenance ............ 9-8
Emission control system warranty ............... 10-19
Energy flow .................................... Hybrid System-6
Energy monitor .................................................... 2-27
Energy monitors ........................... Hybrid System-5
engine
Break-in schedule ........................................ 5-121
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ............................... 8-7
Changing engine oil and oil filter ............. 8-10
Checking engine coolant level ...................... 8-6
Checking engine oil level ............................... 8-9
Emergency hybrid system shut off .......... 5-13
Engine block heater ................................... 5-136
Engine compartment check locations ........ 8-3
Engine cooling system ................................... 8-5
Engine oil ........................................................... 8-9
Engine oil and filter
replacement indicator ................................... 2-25
Engine oil and oil
filter recommendation .................................. 10-6
Engine oil viscosity ........................................ 10-7
Engine serial number .................................. 10-11
Engine specifications ................................... 10-8
If your vehicle overheats ............................... 6-8
Remote engine start indicator ................... 2-21
Engine coolant temperature gauge ................ 2-29
Entry/exit function Automatic drive positioner ........................ 3-30

EV mode odometer and twin
trip odometer ........................................................ 2-27
Event Data Recorders (EDR) ......................... 10-21
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
F
F.M.V.S.S./C.M.V.S.S. certification label .... 10-11
FilterAir cleaner housing filter ............................. 8-16
Changing engine oil and oil filter ............. 8-10
Flashers (See hazard warning
flasher switch) ......................................................... 6-2
Flat tire ...................................................................... 6-3
Flat Tire - Visit dealer warning ....................... 2-22
Flat towing ......................................................... 10-18
Floor mat cleaning ................................................. 7-6
Floor mat installation ............................................ 7-7
Fluid Automatic Transmission Fluid (ATF) ....... 8-12
Brake fluid ....................................................... 8-12
Capacities and
recommended fluids/lubricants ................. 10-2
Engine coolant .................................................. 8-5
Engine oil ........................................................... 8-9
Window washer fluid ................................... 8-13
Fog light switch ................................................... 2-43
Forward Emergency Braking (FEB) ............ 5-104
Forward Emergency Braking (FEB) system
warning light .......................................................... 2-11 Front passenger air bag and status light ..... 1-45
Front power seat adjustment ............................. 1-3
Front seat
Front seat adjustment .................................... 1-3
Fuel Capacities and
recommended fluids/lubricants ................. 10-2
Fuel economy ............................................... 5-122
Fuel octane rating ........................................ 10-4
Fuel recommendation .................................. 10-4
Fuel-filler cap .................................................. 3-24
Fuel-filler door ............................................... 3-24
Gauge ................................................................... 2-7
Fuel economy history .................. Hybrid System-7
Fuel Efficient Driving Tips .............................. 5-121
Fuses ....................................................................... 8-19
Fusible links ........................................................... 8-20
G
Garage door opener HomeLink®Universal Transceiver ............ 2-59
Gas cap ................................................................... 3-24
Gauge ........................................................................\
. 2-5 Engine coolant temperature gauge .......... 2-29
Fuel gauge .......................................................... 2-7
Odometer ........................................................... 2-6
Speedometer ..................................................... 2-6
Tachometer ........................................................ 2-7
Trip computer ................................................. 2-27
General maintenance ............................................. 9-2
Glove box ............................................................... 2-49
H
Hazard warning flasher switch ........................... 6-2
Head restraints/headrests .................................. 1-5
Headlights
Aiming control (See Adaptive Front
lighting System (AFS)) ................................. 2-41
Headlight switch ............................................ 2-36
Heated seats ......................................................... 2-44
Heated steering wheel ....................................... 2-45
Heater Engine block heater ................................... 5-136
High beam assist ................................................. 2-38
High temperature warning ............................... 2-22
High voltage cautions ................. Hybrid System-2
High voltage components ....... Hybrid System-10
Hill start assist system ..................................... 5-134
HomeLink
®Universal Transceiver .................. 2-59
Hood release ......................................................... 3-21
Hook Coat hooks ...................................................... 2-51
Trunk hooks .................................................... 2-51
Horn ........................................................................\
. 2-43
Hybrid system over heat warning .................. 2-22
Hybrid system start operation indicator ....... 2-20
Hybrid
vehicle characteristics ............... Hybrid System-11
Hybrid vehicle precautions ...... Hybrid System-10
11-3