2020 TOYOTA 4RUNNER 420

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4RUNNER (U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 390
Cleaning and protecting the vehicle interior ........... 393
6-2. Maintenance Maintenance requirements ................... 396
General maintenance ........ 398
Emission inspection and maintenance (I/M)
programs ......................... 401
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 402
Hood.................................. 405
Engine compartment ......... 406
Tires .................................. 420
Tire inflation pressure........ 434
Wheels .............................. 437
Air conditioning filter .......... 440
Wireless remote control/ electronic key battery ...... 442
Checking and replacing fuses ............................... 445
Light bulbs ......................... 448 7-1. Essential information
Emergency flashers ........... 464
If your vehicle has to be stopped in
an emergency.................. 465
If the vehicle is trapped in rising water .................. 467
7-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 468
If you think something is wrong ........................... 475
Fuel pump shut off system ............................. 476
If a warning light turns on or a warning buzzer
sounds ............................. 477
If a warning message is displayed...................... 487
If you have a flat tire .......... 492
If the engine will not start ................................. 507
If you cannot operate back door opener ............ 509
If the electronic key does not operate
properly ........................... 510
If the vehicle battery is discharged ................... 513
If your vehicle overheats......................... 517
If the vehicle becomes stuck ................................ 520
6Maintenance and care7When trouble arises

15Pictorial index
4RUNNER (U)
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 530
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 330
Checking/rotation/tire pressur e warning system . . . . . . . . .P. 420
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 492
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 405
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 405
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 525
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 517
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 225
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Front turn signal/parking lights . . . . . . . . . . . . . . . . . . . . . . P. 225
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Stop/tail lights/rear side marker lights . . . . . . . . . . . . . . . . P. 225
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
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Light bulbs of the exterior lights for driving
(Replacing method: P. 448, Wattages: P. 531)
*: Vehicles with a smart key system
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389
Maintenance and care6
4RUNNER (U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 390
Cleaning and protecting the vehicle interior ........... 393
6-2. Maintenance Maintenance requirements ................... 396
General maintenance........ 398
Emission inspection and maintenance (I/M)
programs......................... 401
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 402
Hood ................................. 405
Engine compartment ......... 406
Tires .................................. 420
Tire inflation pressure ....... 434
Wheels .............................. 437
Air conditioning filter.......... 440
Wireless remote control/ electronic key battery ...... 442
Checking and replacing fuses ............................... 445
Light bulbs......................... 448

4206-3. Do-it-yourself maintenance
4RUNNER (U)
Check if the treadwear indicators are showing on the tires. Also check
the tires for uneven wear, such as excessive wear on one side o f the
tread.
Check the spare tire condition and pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is shown by a “TWI” or “ ” mark,
etc., molded into the s idewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.
Tires
Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.
Checking tires
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5358-1. Specifications
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Vehicle specifications
4RUNNER (U)
Tire size( P. 537)
Summer tires or all season tires ( P. 427)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S”
is a summer tire.
Uniform tire quality grading
For details, see “Uniform Tire Q uality Grading” that follows.
DOT and Tire Identification Number (TIN) ( P. 536)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the p lies in a tire.
Location of treadwear indicators ( P. 420)
Tire information
Typical tire symbols
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593Alphabetical index
4RUNNER (U)
Tachometer ................................ 88
Tail lights .................................. 225Light switch ........................... 225
Telephone switches
*
Theft deterrent system
Alarm ...................................... 79
Engine immobilizer system ..... 76
Tire inflation pressure ............. 434 Maintenance data ................. 530
Warning light ......................... 481
Tire information ....................... 535 Glossary................................ 541
Size ....................................... 537
Tire identification number ..... 536
Uniform Tire Quality Grading............................... 539
Tire pressure warning system .................................... 422 Function ................................ 422
Installing tire pressure warning
valves and transmitters ...... 423
Registering ID codes ............ 424
Warning light ......................... 481 Tires .......................................... 420
Chains .................................. 332
Checking............................... 420
If you have a flat tire ............. 492
Inflation pressure .................. 530
Information............................ 535
Replacing.............................. 492
Rotating tires ........................ 421
Size....................................... 530
Snow tires ............................. 333
Spare tire .............................. 492
Tire pressure warning
system .......... ...................... 422
Warning light......................... 481
Tools ......................................... 493
Top tether strap ......................... 66
Total load capacity .................. 191
Towing Dinghy towing ....................... 208
Emergency towing ................ 470
Trailer towing ........................ 192
Toyota Safety Sense P ............ 246 Automatic High Beam ........... 231
Dynamic radar cruise
control ................................ 273
LDA (Lane Departure Alert) ....... 265
PCS (Pre-Collision System) ....... 254
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.