2018 INFINITI Q50 HYBRID heater

unnecessary electrical systems (light,
heater, air conditioner, etc.).
3. Connect jumper cables in the sequence as illustrated (
???).
CAUTION
.Always connect positive (+) to posi-
tive (+) and negative (−) to body
ground (as illustrated) − not to the
12-volt battery.
. Make sure the jumper cables do not
touch moving parts in the engine
compartment and that clamps do
not contact any other metal.
4. Start the engine of the booster vehicle
and let it run for a few minutes.
5. Start the hybrid system of the vehicle being jump started
.
CAUTION
If the hybrid system does not start right
away, push the ignition switch to the
OFF position and wait 10 seconds
before trying again. 6. After starting your hybrid system, care-
fully disconnect the negative cable and
then the positive cable (
???).
NOTE:
If it is not possible to turn the hybrid system
ON by following this procedure, it is
recommended that you contact an INFINITI
retailer immediately. Do not attempt to start the engine by
pushing.CAUTION
.
Automatic Transmission (AT) models
cannot be push-started or tow-
started. Attempting to do so may
cause transmission damage.
. Three-way catalyst equipped models
should not be started by pushing
since the three-way catalyst may be
damaged.
. Never try to start the vehicle by
towing it; when the engine starts,
the forward surge could cause the
vehicle to collide with the tow vehi-
cle.
. Hybrid models cannot be push-
started or tow-started. Attempting
to do so may cause electrical or
transmission damage.
In case of emergency6-7
PUSH STARTING

6-8In case of emergency
CAUTION
.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 cap while
the engine is still hot. When the
radiator cap is removed, pressurized
hot water will spurt out, possibly
causing serious injury.
. Do not open the hood if steam is
coming out.
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading),
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 the P (Park) position.
Do not turn the INFINITI Direct Re-
sponse Hybrid
®System off.
2. Turn off the climate control. Open all the windows, move the heater or air condi-
tioner temperature control to maximum
hot and fan control to high speed. 3. If engine overheating is caused by climb-
ing a long hill on a hot day, run the engine
at a fast idle (approximately 1,500 rpm)
until the temperature gauge indication
returns to normal.
4. Get out of the vehicle. Look and listen for steam or coolant escaping from the
radiator before opening the hood. (If
steam or coolant is escaping, turn off the
hybrid system.) Do not open the hood
further until no steam or coolant can be
seen.
5. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Also check if the cooling fan is running. The radiator hoses and radiator should
not leak water. If coolant is leaking or the
cooling fan does not run, stop the hybrid
system.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, the engine cooling
fan. The engine cooling fan can start at
any time.
7. After the engine cools down, check the coolant level in the reservoir tank with
the engine running. Add coolant to the
reservoir tank if necessary. Have your
vehicle repaired. It is recommended you
visit an INFINITI retailer for this service.
IF YOUR VEHICLE OVERHEATS

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