2021 TOYOTA 4RUNNER Front differential

3054-5. Using the driving support systems
4
Driving
4RUNNER (U)
Before using the rear differential lock system:
Stop the vehicle, shift the shift lever to N and shift the front-wheel
drive control lever into L4 to see if this is sufficient. If this has no
effect, additionally use the re ar differential lock system.
Be sure the wheels have stopped spinning.
Press the rear differential lock switch.
Gently depress the accelerator pedal.
After the rear differential is locked, the indicator will come on.
Unlock the rear differential as soon as the vehicle moves.
To unlock the rear different ial, press the switch again.
■Locking the rear differential
The following systems do not operate when the rear differential is locked. It is
normal operation for the ABS warning light and VSC OFF indicato r to be on at
this time.
•ABS
• Multi Terrain ABS
• Brake assist system
•VSC
• Hill-start assist control
■ The rear differential lock is disengaged when
The front-wheel drive control lever or switch is shifted to H2 or H4.
Never forget to turn off the switch after using this feature.
■ After unlocking the rear differential
Check that the indicator goes off.
■ If the rear differential lo ck indicator flashes rapidly
There may be a malfunction in the rear differential lock system . Have the
vehicle inspected by your Toyota dealer immediately.
Using the rear diffe rential lock system
1
2
3
4

3174-5. Using the driving support systems
4
Driving
4RUNNER (U)
Depending on switch operation,
one of the following messages
may appear on the multi-informa-
tion display to provide guidance
on transfer mode selection etc:
Messages displayed on the multi-information display
MessageDetailsProcedure
“Select 4WD”
(When selecting MUD
& SAND mode) Indicates that the trans-
fer mode needs to be
changed to H4 or L4.Shift the front-wheel
drive control lever to H4
or L4.
“Select L4”
(When selecting
LOOSE ROCK,
MOGUL or ROCK
mode)
Indicates that the trans-
fer mode needs to be
changed to L4.Shift the front-wheel
drive control lever to
L4.
“Stop the Vehicle. Shift
to N”
(When selecting any
mode)Indicates that the trans-
fer mode cannot be
changed to H4 or L4.Stop the vehicle com-
pletely and/or shift the
shift lever to N.
“Accelerate or Deceler-
ate”
(When shifting the
front-wheel control
lever to H4 or H2)
Indicates that the trans-
fer mode may not suc-
cessfully change.Drive straight ahead
while accelerating or
decelerating, or drive in
reverse.
“Drive the Vehicle a
Short Distance”
(When pressing the
rear differential lock
switch)
Indicates that the rear
differential is not
locked.Drive the vehicle for-
ward or backward a
short distance.

4757-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control sys-
tem
 Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system;or
• The seat belt pretensioner system
 Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada) ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Toyota dealer
immediately.
Slip indicator
Indicates a malfunction in:
• The VSC system;
• Trailer Sway Control system;
• The TRAC system;
• The active traction control system;
• The AUTO LSD system;
• The downhill assist control system;
• The hill-start assist control system; or
• The Crawl Control system
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes rapidly)
Rear differential lock indi cator light (if equipped)
Indicates a malfunction in the rear differential lock sys-
tem
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

520
4RUNNER (U)
8-1. Specifications
*1: Unladen vehicle
*2: Without rear differential lock system
*3: With rear differential lock system
*4: With 5 occupants
*5: With 7 occupants
Maintenance data (fuel, oil level, etc.)
Dimensions and weights
Overall length189.8 in. (4820 mm)
Overall width75.8 in. (1925 mm)
Overall height *170.1 in. (1780 mm)
Wheelbase109.8 in. (2790 mm)
TreadFront63.2 in. (1605 mm)
Rear63.2 in. (1605 mm)
Vehicle capacity weight
(Occupants + luggage)1165 lb. (525 kg) *2
880 lb. (395 kg) *3
Trailer weight rating
(trailer weight + cargo weight)5000 lb. (2270 kg)
Luggage compartment load
capacity970 lb. (445 kg) *4
670 lb. (309 kg) *5
Seating capacity
Seating capacity
Vehicle without third seatsVehicle with third seats
5 (Front 2, Rear 3) 7 (Front 2, Rear 5)

5268-1. Specifications
4RUNNER (U)
*: Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” at
the factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or
an equivalent of matching quality to satisfy the above specific ation. Please
contact your Toyota dealer for further details.
*: Your Toyota vehicle is filled with “Toyota Genuine Differentia l Gear Oil” at
the factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or
an equivalent of matching quality to satisfy the above specific ation. Please
contact your Toyota dealer for further details.
Front differential (4WD models)
Oil capacity
Part-time 4WD models
1.6 qt. (1.55 L, 1.4 Imp. qt.)
Full-time 4WD models
1.5 qt. (1.40 L, 1.2 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Rear differential
Oil capacity
Vehicles without a rear differential lock
2.9 qt. (2.70 L, 2.4 Imp. qt.)
Vehicles with a rear differential lock
2.8 qt. (2.65 L, 2.3 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent

580Alphabetical index
4RUNNER (U)
Back doorBack door.............................. 131
Back window ......................... 166
Smart key system ................. 118
Wireless remote control ........ 110
Back window ............................ 166
Back-up lights Replacing light bulbs............. 457
Wattage ................................ 529
Battery ...................................... 417
Battery checking ................... 417
If the vehicle battery is discharged ...................... 510
Preparing and checking before winter....................... 329
Warning light ......................... 474
Bottle holders .......................... 366
Brake Fluid ...................................... 414
Parking brake........................ 224
Warning light ......................... 474
Brake assist ............................. 320
Brake override system ............ 177
Break-in tips ............................. 178
Brightness control Instrument panel light
control................................... 89 Care .................................. 392, 395
Exterior ................................. 392
Interior .................................. 395
Seat belts.............................. 396
Wheels and wheel ornaments .......................... 393
Cargo capacity......................... 191
Cargo hooks ............................ 367
Cargo net hooks ...................... 368
Center differential lock ........... 296
Chains ...................................... 331
Child restraint system............... 53 Booster seats, definition ......... 54
Booster seats, installation....... 65
Convertible seats, definition ... 54
Convertible seats,
installation ............................ 62
Front passenger occupant classification syst em ............ 46
Infant seats, definition............. 54
Infant seats, installation .......... 62
Installing CRS with LATCH anchors ............ 59
Installing CRS with seat belts...................................... 62
Installing CRS
with top tether strap.............. 66
BC

585Alphabetical index
4RUNNER (U)
LATCH anchors ......................... 59
LeverAuxiliary catch lever .............. 407
Hood lock release lever ........ 407
Shift lever .............................. 218
Turn signal lever ................... 223
Wiper lever.................... 236, 239
License plate lights ................. 225 Light switch ........................... 225
Replacing light bulbs............. 458
Wattage ................................ 529
Light bulbs Replacing .............................. 451
Wattage ................................ 529
Lights Automatic High Beam
system ......... ....................... 230
Fog light switch ..................... 234
Front Interior light.................. 358
Headlight switch.................... 225
Interior lights list .................... 357
Luggage compartment lights ................................... 133
Personal lights ...................... 358
Rear interior light .................. 358
Replacing light bulbs............. 451
Turn signal lever ................... 223
Vanity lights .......................... 372
Wattage ................................ 529
Limited slip differential ........... 321
Load capacity........................... 191
Lock steering column ........................... 210, 215
Luggage compartment features .................................. 367 Maintenance
Do-it-yourself maintenance... 404
General maintenance ........... 400
Maintenance data ................. 520
Maintenance requirements ... 398
Resetting the message indicating maintenance is
required .............................. 399
Malfunction indicator lamp..... 475
Manual air conditioning system.................................... 340
Master warning light ....... 478, 484
Meter ........................................... 88 Indicators ................................ 85
Instrument panel light control .................................. 89
Meters..................................... 88
Multi-information display ......... 90
Warning lights ......................... 83
Mirrors Inside rear view mirror .......... 158
Outside rear view mirror defoggers ................... 342, 349
Outside rear view mirrors ..... 160
Vanity mirrors ....................... 372
Moon roof ................................. 170
Door lock linked moon roof operation ........... 172
Jam protection function ........ 171
Operation .............................. 170
LM