differential TOYOTA 4RUNNER 2021 Owners Manual (in English)

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4RUNNER (U)4-1. Before driving
Driving the vehicle ............. 176
Cargo and luggage............ 186
Vehicle load limits ............. 191
Trailer towing..................... 192
Dinghy towing.................... 208
4-2. Driving procedures Engine (ignition) switch (vehicles without a
smart key system) ........... 209
Engine (ignition) switch (vehicles with a
smart key system) ........... 212
Automatic transmission ..... 218
Turn signal lever................ 223
Parking brake .................... 224
4-3. Operating the lights and wipers
Headlight switch ................ 225
Automatic High Beam ....... 230
Fog light switch ................. 234
Windshield wipers and washer ............................ 236
Rear window wiper and washer ............................ 239 4-4. Refueling
Opening the fuel tank cap................................... 242
4-5. Using the driving support systems
Toyota Safety Sense P ...... 245
PCS (Pre-Collision System) ........................... 254
LDA (Lane Departure Alert) ................................ 264
Dynamic radar cruise control.............................. 272
Intuitive parking assist ....... 285
Four-wheel drive system (part-time 4WD
models)............................ 292
Four-wheel drive system (full-time 4WD
models)............................ 296
Active traction control system ............................. 300
AUTO LSD system (2WD models) ................. 302
Rear differential lock system ............................. 304
Downhill assist control system ............................. 307
Crawl Control ..................... 310
Multi-terrain Select............. 313
Driving assist systems ....... 320
4-6. Driving tips Winter driving tips .............. 329
Off-road precautions .......... 333
4Driving

22Pictorial index
4RUNNER (U)Inside rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 158
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 372
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 372
Interior light
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 358
Personal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 358
Moon roof switches
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 170
“SOS” button
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 70
Garage door opener switches
*1. . . . . . . . . . . . . . . . . . . . . . P. 384
Microphone
*3
Assist grips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 383
Active traction control switch
*1. . . . . . . . . . . . . . . . . . . . . . P. 300
VSC off switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 322
DAC switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 307
Rear differential lock switch
*1 . . . . . . . . . . . . . . . . . . . . . . . P. 304
Crawl Control switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 10
Multi-terrain Select switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . P. 313
Auxiliary box
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 364
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832. Instrument cluster
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Instrument cluster
4RUNNER (U)
Warning lights inform the driver of malfunctions in the indicated vehi-
cle’s systems.
Warning lights
*1
(U.S.A.)
Brake system warning
light ( P. 474)*1
Slip indicator ( P. 475)
*1
(Canada)
Brake system warning
light (P. 474)*3
(if equipped)
Four-wheel drive indica-
tor light ( P. 476)
*5High coolant tempera-
ture warning light
(P. 474)*3
(if equipped)
Low speed four-wheel
drive indicator light
(P. 476)
*1
Charging system warn-
ing light ( P. 474)*3
(if equipped)
Rear differential lock
indicator light ( P. 475)
*1
(U.S.A.)
Malfunction indicator
lamp ( P. 475)*3
(if equipped)
Center differential lock
indicator light ( P. 476)
*1
(Canada)
Malfunction indicator
lamp ( P. 475)*2, 4, 5
(if equipped)
Multi-terrain Select indi-
cator light ( P. 476)
*1SRS warning light
(P. 475)*5Brake Override System/
Drive-Start Control/
warning light ( P. 477)
*1
(U.S.A.)
ABS warning light
(P. 475)
(U.S.A.)
Parking brake indicator
(P. 477)
*1
(Canada)
ABS warning light
(P. 475)
(Canada)
Parking brake indicator
(P. 477)

862. Instrument cluster
4RUNNER (U)
*1: These lights turn on when the engine switch is turned to the “ON” position
(vehicles without a smart key system) or the engine switch is turned to
IGNITION ON mode (vehicles with a smart key system) to indicate that a
system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or do not turn off. Have the vehicle inspected by
your Toyota dealer.
*2: This light flashes to indicate that the system is operating.
*3: This light does not turn on when the system is disabled.
*4: This light illuminates on the center panel.
*5: This light illuminates on the multi-information display.
*6: This light turns on when the system is off.
*5
(Green)
LDA indicator ( P. 264)
(if equipped)
“A-TRAC” indicator
(P. 300)
*2, 5
(Amber)
LDA indicator ( P. 264)
*1
(if equipped)
“AUTO LSD” indicator
(P. 302)
(if equipped)
Four-wheel drive indica-
tor ( P. 292)*5
(if equipped)
Multi-terrain Select indi-
cator ( P. 313)
*1
(if equipped)
Downhill assist control
system indicator
(P. 307)*5
(if equipped)
Crawl Control indicator
(P. 310)
(if equipped)
Low speed four-wheel
drive indicator
(P. 292, 296)
(if equipped)
Intuitive parking assist
indicator ( P. 285)
(if equipped)
Rear differential lock
indicator ( P. 304)*1, 2
(if equipped)
Automatic running
boards indicator
(P. 128)
(if equipped)
Center differential lock
indicator ( P. 296)

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Driving4
4RUNNER (U)4-1. Before driving
Driving the vehicle ............. 176
Cargo and luggage ........... 186
Vehicle load limits ............. 191
Trailer towing..................... 192
Dinghy towing ................... 208
4-2. Driving procedures Engine (ignition) switch (vehicles without a
smart key system) ........... 209
Engine (ignition) switch (vehicles with a
smart key system) ........... 212
Automatic transmission ..... 218
Turn signal lever................ 223
Parking brake .................... 224
4-3. Operating the lights and wipers
Headlight switch ................ 225
Automatic High Beam ....... 230
Fog light switch ................. 234
Windshield wipers and washer ............................ 236
Rear window wiper and washer ............................ 239 4-4. Refueling
Opening the fuel tank cap .................................. 242
4-5. Using the driving support systems
Toyota Safety Sense P ..... 245
PCS (Pre-Collision System)........................... 254
LDA (Lane Departure Alert) ............................... 264
Dynamic radar cruise control ............................. 272
Intuitive parking assist....... 285
Four-wheel drive system (part-time 4WD
models) ........................... 292
Four-wheel drive system (full-time 4WD
models) ........................... 296
Active traction control system ............................ 300
AUTO LSD system (2WD models) ................. 302
Rear differential lock system ............................ 304
Downhill assist control system ............................ 307
Crawl Control .................... 310
Multi-terrain Select ............ 313
Driving assist systems ...... 320
4-6. Driving tips Winter driving tips ............. 329
Off-road precautions ......... 333

1854-1. Before driving
4
Driving
4RUNNER (U)
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. D oing so may
cause the following serious damage to the vehicle:
● Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle i s flooded, be
sure to have your Toyota dealer check the following:
● Brake function
● Changes in quantity and quality of oil and fluid used for the engine, trans-
mission, transfer (4WD models), differentials, etc.
● Lubricant condition for the propeller shaft, bearings and suspe nsion joints
(where possible), and the function of all joints, bearings, etc .

2044-1. Before driving
4RUNNER (U)■
Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 528)
● Trailer tires are inflated according to the trailer manufacture r’s recommen-
dation.
● All trailer lights work as required by law.
● All lights work each time you connect them.
● The trailer ball is set at the proper height for the coupler on the trailer.
● The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for imprope r tongue weight,
overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors ap propriate for tow-
ing purposes.
■ Break-in schedule
If your vehicle is new or equipped with any new power train com ponents
(such as an engine, transmission, differential or wheel bearing ), Toyota rec-
ommends that you do not tow a trailer until the vehicle has bee n driven for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start
towing. However, for the next 500 miles (800 km), drive the veh icle at a speed
of less than 45 mph (72 km/h) when towing a trailer, and avoid full throttle
acceleration.
■ Maintenance
●If you tow a trailer, your vehicle will require more frequent m aintenance due
to the additional load. (See “Scheduled Maintenance Guide” or “ Owner’s
Manual Supplement”.)
● Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.
■ If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.
● If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering w heel.
• Begin releasing the accelerator pedal immediately but very gra dually to
reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize. (if enabled, Trailer Sway Control can also help to
stabilize the vehicle and trailer.)

2964-5. Using the driving support systems
4RUNNER (U)
H4F (high speed position)
Use this for normal driving on dry hard-surfaced roads. This po sition gives
greater economy, quietest ride and least wear.
H4L (high speed position, cent er differential locked)
Use this for driving only on tracks that permit the tires slide , like off-road,
icy or snow-covered roads.
L4L (low speed position, c enter differential locked)
Use this for maximum power and traction. Use “L4L” for climbing or
descending steep hills, off-road driving, and hard pulling in s and, mud or
deep snow.
Center differential lock indicator
Low speed four-whe el drive indicator
Four-wheel drive system (full-time 4WD
models)
Use the four-wheel drive contro l switch to select the following
transfer modes:
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2974-5. Using the driving support systems
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Driving
4RUNNER (U)
Push the “UNLOCK” button and
turn the four-wheel drive control
switch to H4L or H4F.
This can be done at any speed.
The center differential lock indica-
tor will turn on (H4L) or go off
(H4F).
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Shifting from H4L to L4L Stop the vehicle completely and continue to depress the brake
pedal.
Shift the shift lever to N.
Push the “UNLOCK” button
and then push and turn the
four-wheel drive control
switch to L4L.
Maintain this condition until the
low speed four-wheel drive indi-
cator turns on.
Shifting between H4F and H4L
Shifting between H4L and L4L
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2984-5. Using the driving support systems
4RUNNER (U)■
Shifting from L4L to H4L
Stop the vehicle completely and continue to depress the brake
pedal.
Shift the shift lever to N.
Push the “UNLOCK” button
and turn the four-wheel drive
control switch to H4L.
Maintain this condition until the
low speed four-wheel drive indi-
cator goes off.
■The four-wheel drive control sw itch can be operated when
The engine switch is in IGNITION ON mode.
■ When the four-wheel d rive control switch is turned to L4L
VSC and TRAC are automatically turned off.
■ If the center differential lock indicator flashes
Locking or unlocking of the center differential is not complete . Drive straight
ahead while accelerating or decelerating, or drive in reverse.
■ If the center differential lock indicator flashes and a buzzer sounds
Locking of the center differential is not complete. Stop the wh eels from slip-
ping or spinning and, if the indicator still flashes, operate the four-wheel drive
control switch again.
■ If the low speed four-wheel dri ve indicator continues to flash
The transfer mode may not successfully change. Operate the four -wheel
drive control switch again.
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