2021 INFINITI QX50 fog lights

•The LDP system may activate if you
change lanes without first activating
your turn signal or, for example, if a con-
struction zone directs traffic to cross an
existing lane marker. If this occurs you
may need to apply corrective steering to
complete your lane change.
• Because the LDP may not activate under
the road, weather, and lane marker con-
ditions described in this section, it may
not activate every time your vehicle be-
gins to leave its lane and you will need to
apply corrective steering.
• The LDP system will not operate at
speeds below approximately 37 mph (60
km/h) or if it cannot detect lane markers.
• Do not use the LDP system under the
following conditions as it may not func-
tion properly:
– During bad weather (rain, fog, snow,
etc.).
– When driving on slippery roads, such
as on ice or snow.
– When driving on winding or uneven
roads.
– When there is a lane closure due to
road repairs.
– When driving in a makeshift or tem-
porary lane. –
When driving on roads where the lane
width is too narrow.
– When driving without normal tire
conditions (for example, tire wear,
low tire pressure, installation of
spare tire, tire chains, non-standard
wheels).
– When the vehicle is equipped with
nonoriginal brake parts or suspen-
sion parts.
– When you are towing a trailer or
other vehicle.
The system may not function properly un-
der the following conditions:
• On roads where there are multiple paral-
lel lane markers; lane markers that are
faded or not painted clearly; yellow
painted lane markers; non-standard lane
markers; or lane markers covered with
water, dirt, snow, etc.
• On roads where discontinued lane mark-
ers are still detectable.
• On roads where there are sharp curves.
• On roads where there are sharply con-
trasting objects, such as shadows, snow,
water, wheel ruts, seams or lines remain-
ing after road repairs. (The LDP system
could detect these items as lane markers.)
• On roads where the traveling lane
merges or separates.
• When the vehicle’s traveling direction
does not align with the lane marker.
• When traveling close to the vehicle in
front of you, which obstructs the lane
camera unit detection range.
• When rain, snow or dirt adheres to the
windshield in front of the lane camera
unit.
• When the headlights are not bright due
to dirt on the lens or if the aiming is not
adjusted properly.
• When strong light enters the lane cam-
era unit. (For example, the light directly
shines on the front of the vehicle at sun-
rise or sunset.)
• When a sudden change in brightness oc-
curs. (For example, when the vehicle en-
ters or exits a tunnel or under a bridge.)
While the LDP system is operating, you may
hear a sound of brake operation. This is nor-
mal and indicates that the LDP system is
operating properly.
Starting and driving5-43

8 Do-it-yourself
Maintenance precautions........................8-2
Engine compartment check locations .............8-3
Engine cooling system .......................... 8-4
Checking engine coolant level .................8-5
Changing engine coolant ......................8-5
Engine oil ........................................8-6
Checking engine oil level .......................8-6
Changing engine oil and oil filter ...............8-6
Continuously Variable Transmission (CVT)
fluid ........................................... 8-10
Brake fluid ..................................... 8-10
Windshield-washer fluid ......................... 8-11
Windshield-washer fluid reservoir .............8-11
Battery ........................................ 8-12
Jump starting ............................... 8-14
Variable voltage control system ................8-14
Drive belt ...................................... 8-15
Spark plugs .................................... 8-15
Replacing spark plugs ....................... 8-15
Air cleaner ..................................... 8-16
In-cabin microfilter .......................... 8-16Windshield wiper blades
........................ 8-17
Cleaning .................................... 8-17
Replacing ................................... 8-17
Brakes ......................................... 8-19
Fuses .......................................... 8-20
Engine compartment ........................ 8-20
Passenger compartment ....................8-21
Battery replacement ........................... 8-22
INFINITI Intelligent Key .....................8-22
Lights ......................................... 8-24
Headlights .................................. 8-24
Fog lights (if so equipped) ...................8-24
Exterior and interior lights ...................8-25
Replacement procedures ....................8-26
Wheels and tires ............................... 8-27
Tire pressure ................................ 8-27
Tire labeling ................................ 8-30
Types
of tires ............................... 8-33
Tire chains .................................. 8-36
Changing wheels and tires ...................8-36

Note: Changes or modifications not ex-
pressly approved by the party responsible
for compliance could void the user’s author-
ity to operate the equipment.
For Canada:
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation
is subject to the following two conditions: (1)
this device may not cause interference, and
(2) this device must accept any interference,
including interference that may cause unde-
sired operation of the device.HEADLIGHTS
For additional information on headlight bulb
replacement, refer to the instructions out-
lined in this section.
Replacing the LED headlight bulb
If LED headlight bulb replacement is re-
quired, it is recommended that you visit an
INFINITI retailer for this service.
FOG LIGHTS (if so equipped)
For additional information on fog light bulb
replacement, refer to the instructions out-
lined in this section.
Replacing the LED fog light bulb
If LED fog light bulb replacement is required,
it is recommended that you visit an INFINITI
retailer for this service.
LIGHTS
8-24Do-it-yourself

EXTERIOR AND INTERIOR LIGHTS
ItemWattage (W)Bulb No.
Headlight assembly* High/Low ——
Park/Daytime running ——
Turn ——
Side marker ——
Fog light (if so equipped) ——
Door mirror turn signal light* ——
Map light assembly* Dome lights* ——
Map lights* ——
Courtesy light (if so equipped)* ——
Vanity mirror light* 2—
Footwell light* ——
Welcome light* ——
Personal light* ——
Glove box light* 1—
Front step lights* 5168
Rear step lights (if so equipped)* 5168
Cargo lights* 5—
High-mounted stop light* ——
Rear combination light Tail* ——
Stop* ——
Turn* ——
Backup (reversing) assembly* Tail* ——
Turn* ——
Backup* ——
License plate light* ——
* It is recommended that you visit an INFINITI retailer for replacement.
Always check with the Parts Department at an INFINITI retailer for the latest parts
information.
Do-it-yourself8-25

1. Headlight assembly
2. Map light assembly
3. Personal light
4. Door mirror turn signal light
5. High-mounted stop light
6. Cargo light
7. License plate light
8. Backup (reversing) assembly
9. Rear combination light
10. Rear step light (if so equipped)
11. Front step light
12. Welcome light
13. Fog light (if so equipped)
REPLACEMENT PROCEDURES
All other lights are either type A, B, C or D. When
replacing a bulb, first remove the lens, light
and/or cover using a cloth and suitable tool.
Indicates bulb removal
Indicates bulb installation
LDI3204
WDI0263
8-26Do-it-yourself

Engine coolant................8-4Engine oil.................. .8-6Windshield-washer fluid.........8-11Fog light switch................2-42Forward Emergency Braking (FEB) with
Pedestrian Detection system. . .2-13, 5-123Front air bag system
(See supplemental restraint system). . . .1-48Front and rear sonar system........5-160Front and rear sonar system switch. . . .2-45Front power seat adjustment.........1-3Front seats................... .1-2Front-door pocket..............2-50Fuel
Capacities and recommended
fuel/lubricants
.............. .10-2Fuel economy...............5-145Fuel gauge................. .2-7Fuel octane rating.............10-5Fuel recommendation...........10-3Fuel-filler door and cap..........3-28Loose fuel cap warning..........2-22Fuel efficient driving tips..........5-144Fuel gauge................... .2-7Fuel-filler door.................3-28Fuses..................... .8-20Fusible links..................8-21
G
Garage door opener, HomeLink® Universal
Transceiver.......2-70, 2-72, 2-73, 2-74Gas cap.................... .3-28
Gauge
Engine coolant temperature gauge. . . .2-6Fuel gauge................. .2-7Odometer.................. .2-5Speedometer.................2-5Tachometer................. .2-6Trip odometer................2-5General maintenance..............9-2Glove box................... .2-52Glove box lock.................2-52Grocery hooks.................2-56
H
Hazard warning flasher switch........6-2Head restraints.................1-7Head Up Display (HUD)...........2-46Headlight aiming control...........2-40Headlight and turn signal switch......2-36Headlight switch.............. .2-36Headlights.................. .8-24Headlights, aiming control..........2-40Heated seats..................2-43Heater
Heater and air conditioner (automatic)
(if so equipped)
.............. .4-34Heater and air conditioner controls. . .4-35Heater operation..............4-36Heater and air conditioner (automatic). .4-34Heater and air conditioner settings.....4-41Hill start assist system...........5-159HomeLink® Universal
Transceiver.......2-70, 2-72, 2-73, 2-74
Hood..................... .3-21Hook
Luggage hook.............. .2-55Horn...................... .2-42
I
Ignition switch
Push-button ignition switch.......5-13Immobilizer system............. .5-16Important vehicle information label. . . .10-11In-cabin microfilter..............8-16Increasing fuel economy..........5-145Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders)
............... .2-9, 2-10INFINITI Drive Mode Selector.......5-28INFINITI Intelligent Key System. . . .3-2, 3-6INFINITI InTouch™ Owner's Manual. . . .4-2INFINITI Vehicle Immobilizer
System..............2-30, 3-4, 5-16Inside automatic anti-glare mirror. . . . .3-34Instrument brightness control........2-41Instrument panel.............0-6, 2-2Instrument panel dimmer switch......2-41Intelligent All-Wheel Drive (AWD). . . .5-146Intelligent Cruise Control (ICC)
(for vehicles with ProPILOT Assist). . . .5-87Intelligent Key system
Key operating range............ .3-8Key operation............... .3-9Mechanical key................3-3Remote keyless entry operation.....3-13
11-3

Troubleshooting guide..........3-16Warning signals..............3-16Interior light................. .2-68ISOFIX child restraints............1-24
J
Jump starting............. .6-5, 8-14
K
Key....................... .3-2Key fob battery replacement........8-22Keyless entry
With Intelligent Key system
(See Intelligent Key system)
.......3-13
L
LabelTire and Loading Information label. .10-12LabelsAir conditioner specification label. . .10-12C.M.V.S.S. certification label......10-11Emission control information label. . .10-11Engine serial number.......... .10-11F.M.V.S.S. certification label......10-11Tire and Loading Information label. .10-12Vehicle identification number (VIN). .10-10Vehicle identification number (VIN)
plate................... .10-10Warning labels (for SRS).........1-60
Lane Departure Prevention (LDP).....5-40Lane Departure Warning (LDW)......5-35LATCH (Lower Anchors and Tethers for
CHildren) System...............1-24LED Daytime Running Lights (DRL)
system.................... .2-40License plate
Installing the license plate........10-13Liftgate.................... .3-21Liftgate release................3-26Light
Air bag warning light........1-61, 2-12Brake light (See stop light)........8-25Bulb check/instrument panel......2-10Bulb replacement............ .8-25Charge warning light...........2-11Exterior and Interior lights........8-25Fog light switch............. .2-42Fog lights................. .8-24Headlight and turn signal switch. . . .2-36Headlights.................8-24Interior light.................2-68Light bulbs.................8-24Low tire pressure warning light.....2-13Low windshield-washer fluid warning
light.................... .2-22Personal lights...............2-69Security indicator light...........2-12Trunk light................. .2-69Warning/indicator lights and audible
reminders...............2-9, 2-10Lights..................... .8-24Map lights..................2-69
Lock
Child safety rear door lock.........3-6Door locks................. .3-4Glove box lock...............2-52Liftgate release..............3-26Power door locks..............3-5Loose fuel cap warning...........2-22Low fuel warning light. . . .2-12, 2-15, 2-22Low tire pressure warning light.......2-13Low windshield-washer fluid warning
light...................... .2-22Luggage (See vehicle loading
information).................10-15Luggage hook.................2-55Luggage rack (see roof rack). . . .2-56, 2-57
M
Maintenance
General maintenance........... .9-2Inside the vehicle.............. .9-3Maintenance precautions.........8-2Outside the vehicle.............9-2Seat belt maintenance...........1-19Under the hood and vehicle........9-4Maintenance requirements..........9-2Maintenance schedules.........9-7, 9-8Malfunction indicator light..........2-15Map lights.................. .2-69Memory seat.............3-36, 3-38Meters and gauges.............. .2-4Instrument brightness control......2-41
11-4