2018 INFINITI Q50 HYBRID boot

Hybrid System-4Hybrid System Overview
delivered to an INFINITI retailer to
have the Li-ion battery pack and high
voltage parts such as the inverter,
including the wiring harness, re-
moved prior to painting. Li-ion bat-
tery packs exposed to heat in the
paint booth will experience capacity
loss. Damaged Li-ion battery packs
may also pose safety risks to un-
trained mechanics and repair person-
nel.The emergency shut-off system is activated
and the high-voltage system automatically
turns off in the following conditions:
.
Front and side collisions in which the air
bags are deployed.
. Certain rear collisions.
. Certain INFINITI Direct Response Hy-
brid
®System malfunctions
For the above collisions and the certain
hybrid system malfunctions, the READY to
drive indicator light will turn off. See “Warn-
ing lights, indicator lights and audible re-
minders” (P.2-9).
The emergency shut-off activates for the
above collisions to minimize risk of an event
that could cause injury or an accident. If the
emergency shut-off system activates, the
hybrid system may not switch to READY to
drive position. If this occurs, it is recom-
mended that you contact an INFINITI re-
tailer. Even if the ignition switch is switched
to READY to drive position, the system may
shut-off suddenly. Therefore, drive cau-
tiously to the nearest INFINITI retailer or
contact an INFINITI retailer as soon as
possible. To start the INFINITI Direct Response
Hybrid
®System:
1. Depress the brake pedal and place the ignition switch in the ON position when
the transmission is in the P (Park) or N
(Neutral) position (P is recommended).
(For more details, see “Push-button
ignition switch” (P.5-11).)
2. The READY to drive indicator light
flashes, then turns illuminated. (The
hybrid system switched to the READY
to drive mode when the indicator light
illuminates.)
When the READY to drive indicator light
illuminates, the vehicle can be driven,
even if the gasoline engine is not running.
NOTE:
The gasoline engine starts and stops auto-
matically. It may stop during low speed
driving, deceleration or when the vehicle is
stopped.
The gasoline engine may automatically run
in the following conditions:
. The level of remaining charge in the
Lithium ion (Li-ion) battery is low. The
engine runs to charge the Li-ion battery
and to provide power to the drive the
vehicle.
. The temperature of the engine coolant is
low.
EMERGENCY SHUT-OFF SYSTEMOPERATION OF THE INFINITI DIRECT
RESPONSE HYBRID®SYSTEM

9-6Maintenance and schedules
CHASSIS AND BODY MAINTE-
NANCE
Brake lines and cables:
Visually inspect for proper installation.
Check for chafing, cracks, deterioration,
and signs of leaking. Replace any deterio-
rated or damaged parts immediately.
Brake pads, rotors, drums and linings:
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or damaged
parts immediately.
Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deterioration,
and damage. Tighten connections or replace
parts as necessary.
In-cabin microfilter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
replace the filter more frequently.
Propeller shaft(s):
Check for damage, looseness, and grease
leakage. (4WD/AWD/RWD)
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots:
Check for damage, looseness, and leakage
of oil or grease. Under severe driving condi-
tions, inspect more frequently.Tire rotation:
Tires should be rotated every 5,000 miles
(8,000 km) according to the instructions
under “Explanation of general maintenance
items” (P.9-2). When rotating tires, check for
damage and uneven wear. Replace if neces-
sary.
Transmission fluid/oil, differential oil and
transfer case oil:
Visually inspect for signs of leakage at
specified intervals.
To help ensure smooth, safe and economical
driving, INFINITI provides two maintenance
schedules that may be used, depending upon
the conditions in which you usually drive.
These schedules contain both distance and
time intervals, up to 120,000 miles
(192,000 km)/144 months. For most peo-
ple, the odometer reading will indicate when
service is needed. However, if you drive very
little, your vehicle should be serviced at the
regular time intervals shown in the schedule.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the same
mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe
operating conditions
should be performed
on vehicles that are driven under especially
demanding conditions. Additional mainte-
nance items should be performed if you
primarily operate your vehicle under the
following conditions:
. Repeated short trips of less than 5 miles
(8 km).
. Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
MAINTENANCE SCHEDULES

CHASSIS AND BODY MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OP-
ERATION
Perform at of miles,
kilometers or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Brake lines and cables II I I I I
Brake pads and rotors$ II I I I I
Brake fluid$ RR R
Automatic transmission
fluid See NOTE (1)
Transfer fluid and dif-
ferential gear oil See NOTE (2)
II I I I I
Steering gear and link-
age, axle and suspension
parts$ II I
Tire rotation See NOTE (3)
Propeller shaft and drive
shaft boots (AWD mod-
els)$ II I I I I
Exhaust system$ II I
In-cabin microfilter RR R R
Intelligent Key battery RR R R
Maintenance and schedules9-11

9-12Maintenance and schedules
MAINTENANCE OP-
ERATION
Perform at of miles, kilo-
meters or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Brake lines & cables IIII I I
Brake pads & rotors$ IIII I I
Brake fluid$ RR R
Automatic transmission
fluid See NOTE (1)
Transfer fluid & differen-
tial gear oil See NOTE (2)
IIII I I
Steering gear & linkage,
axle & suspension parts$ II I
Tire rotation See NOTE (3)
Propeller shaft & drive
shaft boots (AWD mod-
els)$ IIII I I
Exhaust system$ II I
In-cabin microfilter RRR R
Intelligent Key battery RRR R
NOTE:
Maintenance items with “$ ” should be
performed more frequently according to
“Maintenance under severe driving condi-
tions” (P.9-13).
(1) Periodic maintenance is not required.
(2) If using a car-top carrier, or driving on
rough or muddy roads, change (not just inspect) oil at every 20,000 miles (32,000
km) or 24 months.
(3) Refer to “Tire rotation” under “General
maintenance” (P.9-2).

The maintenance intervals shown on the
preceding pages are for normal operating
conditions. If the vehicle is mainly operated
under severe driving conditions as shown
below, more frequent maintenance must be
performed on the following items as shown
in the table.
Severe driving conditions
.Repeated short trips of less than 5 miles
(8 km).
. Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
. Operating in hot weather in stop-and-go
“rush hour” traffic.
. Extensive idling and/or low speed driving
for long distances, such as police, taxi or
door-to-door delivery use.
. Driving in dusty conditions.
. Driving on rough, muddy, or salt spread
roads.
. Using a car-top carrier.
Maintenance operation: Inspect = Inspect
and correct or replace as necessary.Maintenance item Maintenance operation Maintenance interval
Brake fluid ReplaceEvery 10,000 miles (16,000 km) or 12
months
Brake pads & rotors InspectEvery 5,000 miles (8,000 km) or 6
months
Steering gear & linkage, axle &
suspension parts Inspect
Every 5,000 miles (8,000 km) or 6
months
Propeller shaft & drive shaft
boots (AWD models) Inspect
Every 5,000 miles (8,000 km) or 6
months
Exhaust system InspectEvery 5,000 miles (8,000 km) or 6
months
Maintenance and schedules9-13
MAINTENANCE UNDER SEVERE
DRIVING CONDITIONS