2020 INFINITI Q50 key battery

9-8Maintenance and schedules
STANDARD MAINTENANCEAbbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OPERA-
TION
Perform at number of miles,
kilometers or months, which-
ever 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 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
Air cleaner filter NOTE (1) RR R R
Automatic transmission fluid NOTE (2)
Brake fluid$ RR R R R R
Brake lines and cables IIII I I I II II I
Brake pads and rotors$ IIIIIIIIIIII
Drive belts NOTE (3) I* I* I*I*I* I*I*I* I*
Engine coolant* NOTE (4)
(5)
Engine oil & oil filter NOTE (6) R R R R R R RR R RR R
EVAP vapor lines & Fuel lines I*I* I* I* I* I*
Exhaust system$ II I I I I
Fuel filter NOTE (2)
In-cabin microfilter RRR R R R R R
Intake & exhaust valve clear-
ance NOTE
(7)
Intelligent Key battery IR R R R R R R
Propeller shaft & drive shaft
boots (AWD models)$ IIIIIIIIIIII
Spark plugs NOTE (8) Replace every 105,000 miles (168,000 km)
Steering gear and linkage, axle
and suspension parts$ II I I I I
Stop lamp switch and brake
pedal position switch NOTE (9) I
III I I I II II I
Tire rotation NOTE
(10)
Transfer fluid & differential
gear oil NOTE
(11) IIIIIIIIIIII

11 Index
A
ABS (Anti-lock Braking System) ................... 5-127
Active Lane Control ............................................ 5-25
Active noise cancellation ................................. 5-138
Active sound enhancement ............................ 5-138
Active trace control ......................................... 5-130
Air bag systemFront-seat mounted side-impact
supplemental air bag system ..................... 1-55
Roof-mounted curtain side-impact
supplemental air bag system ..................... 1-55
Air bag warning labels ....................................... 1-58
Air bag warning light .............................. 1-58, 2-15
Air cleaner housing filter ................................... 8-15
Air conditioner
Air conditioner operation ............................ 4-36
Air conditioner service ................................ 4-42
Air conditioner specification label ......... 10-13
Air conditioning system refrigerant
and lubricant recommendations .... 4-42, 10-7
Automatic air conditioner ........................... 4-37
DUAL mode setting ..................................... 4-40
Heater and air conditioner .......................... 4-36
Servicing air conditioner ............................. 4-42
Air deflectors ...................................................... 10-15
Alarm How to stop alarm (see vehicle
security system) ............................................ 2-30
Alcohol, drugs and driving ................................ 5-10 Antenna .................................................................. 4-43
Anti-lock Braking System (ABS) ................... 5-127
Appearance care
Exterior appearance care ............................... 7-2
Interior appearance care ................................ 7-5
Armrest ...................................................................... 1-7
Around View
®Monitor ...................................... 4-11
Audible reminders ................................................. 2-17
Autolight system .................................................. 2-35
Automatic Automatic air conditioner ........................... 4-37
Automatic Transmission Fluid (ATF) ......... 8-9
Driving with automatic transmission ....... 5-16
Automatic door locks ............................................ 3-5
Automatic drive positioner ............................... 3-32
Automatic seat positioner ................................ 3-32
Avoiding collision and rollover ............................ 5-9
B
Back-up Collision Intervention (BCI) .............. 5-61
Battery .................................................................... 8-11
Battery replacement, Intelligent Key ......... 3-2
Battery saver system .................................... 2-38
Intelligent Key ................................................. 8-19
Variable voltage control system ............... 8-13
Before starting the engine ................................ 5-14
Belts (See drive belts) ......................................... 8-13
Blind Spot Intervention
®(BSI) ......................... 5-48
Blind Spot Warning (BSW) .............................. 5-40 Brake
Anti-lock Braking System (ABS) ............. 5-127
Brake fluid ...................................................... 8-10
Brake force distribution ............................. 5-129
Brake system ................................................ 5-126
Parking brake operation ............................. 5-20
Brake warning light .............................................. 2-11
Break-in schedule .............................................. 5-119
Bulb check/instrument panel ........................... 2-10
Bulb replacement ................................................. 8-22
C
Camera aiding sonar function ......................... 4-25
Capacities and
recommended fluids/lubricants ....................... 10-2
Car phone or CB radio ....................................... 4-43
Card holder ............................................................ 2-48
Catalytic converter Three-way catalyst ......................................... 5-5
Changing intercooler coolant ............................. 8-6
Chassis control ................................................... 5-132
Check tire pressure warning ............................. 2-21
Checking intercooler coolant level .................... 8-6
Child restraints ...................................................... 1-21 LATCH system ............................................... 1-23
Precautions on child restraints .................. 1-21
Child safety ............................................................ 1-19
Child safety rear door lock .................................. 3-6

11-4
INFINITI Vehicle Immobilizer System ............ 2-30Engine start .................................................... 2-30
Inside mirror .......................................................... 3-29
Inspection/maintenance (I/M) test ............. 10-22
Instrument brightness control ......................... 2-40
Instrument panel ..................................................... 2-5
Intelligent All-Wheel Drive (AWD) ............... 5-121
Intelligent Cruise Control (ICC) ........................ 5-71
Intelligent Cruise Control (ICC) system
ON indicator ......................................................... 2-22
Intelligent Key .......................................................... 3-2
Intelligent Key system ........................................... 3-6 Battery replacement ..................................... 8-19
Key operating range ....................................... 3-8
Key operation ................................................... 3-9
Warning signals .............................................. 3-13
Intercooler cooling system .................................. 8-5
Interior light control switch .............................. 2-55
Interior light replacement .................................. 8-24
Interior lights ......................................................... 2-54
Interior trunk lid release .................................... 3-24
ISOFIX child restraint ......................................... 1-23
J
Jump starting ........................................................... 6-5
K
Keyless entry (See remote keyless
entry system) ........................................................ 3-15 Keys ........................................................................\
.... 3-2
For Intelligent Key system ............................ 3-6
L
Labels Air bag warning labels ................................. 1-58
Air conditioner specification label ......... 10-13
Emission control information label ........ 10-12
Engine serial number ................................. 10-12
F.M.V.S.S./C.M.V.S.S.
certification label ........................................ 10-12
Tire and Loading
information label ............................. 8-28, 10-13
Vehicle identification number (VIN) ....... 10-11
Lane Departure Warning (LDW)/Lane
Departure Prevention (LDP) ............................ 5-33
LATCH system ..................................................... 1-23
License plate
Installing front license plate .................... 10-14
Light
Air bag warning light .................................... 1-58
Bulb replacement ........................................... 8-22
Fog light switch ............................................. 2-41
Headlight switch ............................................ 2-34
Indicator lights ................................................ 2-15
Interior light control switch ........................ 2-55
Interior lights ................................................... 2-54
Map lights ........................................................ 2-54
Personal lights ................................................ 2-54
Replacement ................................................... 8-22
Trunk light ....................................................... 2-56 Vanity mirror lights ....................................... 2-56
Warning/indicator lights and
audible reminders .......................................... 2-10
Lights
Exterior and interior light replacement ... 8-24
Loading information (See vehicle
loading information) ......................................... 10-16
Lock
Automatic door locks ..................................... 3-5
Door locks .......................................................... 3-4
Power door lock ............................................... 3-4
Trunk lid ........................................................... 3-22
Locking with mechanical key ............................. 3-4
Log-in function .................................................... 3-15
Loose Fuel Cap warning ........................ 2-21, 3-27
Low fuel warning light ....................................... 2-12
Low outside temperature warning ................. 2-22
Low tire pressure warning light ...................... 2-12
Low tire pressure warning system
(See Tire Pressure Monitoring
System (TPMS)) ................................ 5-5, 6-3, 8-26
M
Maintenance
Battery .............................................................. 8-11
General maintenance ...................................... 9-2
Indicators for maintenance (vehicle
information display) ...................................... 2-23
Inside the vehicle ............................................. 9-3
Maintenance log ............................................ 9-11
Maintenance precautions .............................. 8-2