traction control TOYOTA 4RUNNER 2021 (in English) User Guide

3134-5. Using the driving support systems
4
Driving
4RUNNER (U)
“ON/OFF” switch
Mode selector dial
Mode indicators
Multi-terrain Select indicator
Multi-information display
Displays status information including operating status and road type selec-
tion.
Multi-terrain Select
: If equipped
The Multi-terrain Select system has 4 terrain modes. When a ter -
rain mode is selected in accor dance with terrain conditions,
engine power and active traction control system is controlled t o
enhance off-road drivability.
Additionally, guidance messages such as transfer mode selec-
tion advice are displayed on the multi-information display to
assist the driver in ope rating the vehicle.
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3184-5. Using the driving support systems
4RUNNER (U)
“Operation not avail-
able while multi-terrain
select active”
(When pressing the
VSC off switch or “A-
TRAC” switch)Indicates that VSC and
active traction control
cannot be disabled
while Multi-terrain
Select is operating.
-
“Return the Four-Wheel
Drive Control Switch”
(When shifting the
front-wheel control
lever)
Indicates that the trans-
fer mode cannot be
changed to H4 or L4.Return the front-wheel
control lever to H4 or
L4.
“Cannot be Selected”
(When pressing the
“ON/OFF” switch)
Indicates that Multi-ter-
rain Select cannot be
operated because vehi-
cle speed exceeds
approximately 7 mph
(12 km/h).
Reduce vehicle speed.
“Operation Not Possi-
ble When Crawl Con-
trol Activated”
(When pressing the
“ON/OFF” switch)Indicates that Multi-ter-
rain Select cannot be
operated because
Crawl Control is operat-
ing.
Turn Crawl Control off.
“Multi-terrain select has
been cancelled”
(When pressing the
“ON/OFF” switch)Indicates, along with a
beep, that Multi-terrain
Select has been dis-
abled.
-
“Multi-terrain select not
available”
(When pressing the
“ON/OFF” switch)
Indicates that Multi-ter-
rain Select cannot be
operated because the
VSC and/or 4WD sys-
tem may be malfunc-
tioning.
Contact your Toyota
dealer.
MessageDetailsProcedure

3204-5. Using the driving support systems
4RUNNER (U)
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Multi Terrain ABS (Anti-lock Brake System) (if equipped)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road s urface,
or in off-road conditions (such as rough roads, sand and mud)
The Multi Terrain ABS operates in synchronization with the Multi-
terrain Select.
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing driving torque when
trailer sway is detected.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicl e or accelerating on slippery roads
Driving assist systems
To keep driving safety and perf ormance, the following systems
operate automatically in respon se to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heav ily when operating the vehi-
cle.

3214-5. Using the driving support systems
4
Driving
4RUNNER (U)
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when start-
ing on an uphill
◆LSD (Limited Slip Diff erential) (if equipped)
Transfers drive power to the rear tires when front tires spin, and
vice versa, in order to improve traction
◆KDSS (Kinetic Dynamic Susp ension System) (if equipped)
Enhances ride comfort and handli ng response by using a hydraulic
control system to control the su spension stabilizer bars in response
to road surface and driving conditions during cornering or off- road
driving
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control system s are operating.
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control/hill-start assist control
systems are operating.
A buzzer (intermittent) sounds
when the hill-start assist control
system is operating.
When the TRAC/VSC/Trailer Sway Control systems are operating
(2WD models)
When the TRAC/VSC/Trailer Sway C ontrol/hill-start assist control
systems are operating (4WD models)

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

5378-1. Specifications
8
Vehicle specifications
4RUNNER (U)
This information has been prepared in accordance with regulations
issued by the National Highway Tr affic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota
vehicles with info rmation on uniform ti re quality grading.
Your Toyota dealer will help answer any questions you may have as
you read this information.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requ ire-
ments in addition to these grades. Quality grades can be found
where applicable on the tire sidewall between tread shoulder an d
maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a s peci-
fied government t est course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2)
times as well on the governmen t course as a tire graded 100.
The relative performance of tires depends upon the actual condi -
tions of their use. Performance ma y differ significantly from the norm
due to variations in driving habits, service practices and diff erences
in road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C ,
and they represent the tire’s ability to stop on wet pavement a s
measured under controlled conditions on specified government te st
surfaces of asphalt and concrete.
A tire marked C may have p oor traction performance.
Warning: The traction grade assigned to this tire is based on b raking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
Uniform Tire Quality Grading

579
4RUNNER (U)
Alphabetical index
Alphabetical index
A/C .................................... 340, 347Air conditioning filter ............. 441
ABS (Anti-lock Brake System)...... 320
Function ................................ 320
Warning light ......................... 475
Active head restraints ............. 137
Active traction control ............ 300
Air conditioning filter .............. 441
Air conditioning
system ............................ 340, 347 Air conditioning filter ............. 441
Airbags ....................................... 35
Airbag operating conditions .... 42
Airbag precautions for your child ......................... 37
Airbag warning light .............. 475
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 42
Curtain shield airbag precautions ........................... 39
Front passenger occupant classification syst em............. 46
General airbag precautions .... 37
Locations of airbags................ 35
Modification and disposal of airbags.............................. 41
Side airbag operating
conditions ............................. 42
Side airbag precautions .......... 37
Side and curtain shield airbags operating conditions ............. 42
Side and curtain shield airbags precautions .............. 37
SRS airbags............................ 35 Alarm .......................................... 79
Alarm ...................................... 79
Warning buzzer .................... 474
Anchor brackets ........................ 57
Antennas (smart key system) ............... 118
Anti-lock Brake System (ABS) ...................................... 320
Function ................................ 320
Warning light......................... 475
Armrest..................................... 383
Assist grip ................................ 383
Audio system
*
AUTO LSD system................... 302
Automatic air conditioning
system.................................... 347
Automatic High Beam ............. 230
Automatic light control
system.................................... 225
Automatic running boards ..... 128
Automatic transmission ......... 218
If the shift lever cannot be shifted from P .... 221
S mode ................................. 219
AUX port
*
Auxiliary boxes ........................ 364
A
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

590Alphabetical index
4RUNNER (U)
Tires .......................................... 422Chains................................... 331
Checking ............................... 422
If you have a flat tire ............. 489
Inflation pressure .................. 528
Information ............................ 533
Replacing .............................. 489
Rotating tires......................... 423
Size ....................................... 528
Snow tires ............................. 332
Spare tire .............................. 489
Tire pressure warning
system ......... ....................... 424
Warning light ......................... 478
Tools ......................................... 490
Top tether strap ......................... 66
Total load capacity .................. 191
Towing Dinghy towing ....................... 208
Emergency towing ................ 469
Trailer towing ........................ 192
Toyota Safety Sense P ............ 245 Automatic High Beam ........... 230
Dynamic radar cruise
control................................. 272
LDA (Lane Departure Alert)........ 264
PCS (Pre-Collision System)........ 254 TRAC (Traction Control) ......... 320
Trailer Sway Control ............... 320
Transmission ........................... 218
Trip information ......................... 88
Trip meters ................................. 88
Turn signal lights .................... 223
Replacing light bulbs .... 452, 456
Turn signal lever ................... 223
Wattage ................................ 529
USB port
*
Valet key ................................... 102
Vanity lights ............................. 372 Wattage ................................ 529
Vanity mirrors .......................... 372
Vehicle data recordings .............. 9
Vehicle identification number ................................... 521
Vehicle Stability Control (VSC) ...................................... 320
Ventilators
(seat ventilators) ................... 355
VSC (Vehicle Stability Control) .... 320
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