overheating TOYOTA 4RUNNER 2019 Owners Manual (in English)

822. Instrument cluster
4RUNNER (U)
The brightness of the instrument panel lights can be adjusted.
Brighter
Darker
■ The meters and display illuminate when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
■ The brightness of the instrument panel lights
When the headlight switch is turned to on, the brightness will be reduced
slightly unless the control dial is turned fully upward.
Instrument panel light control
1
2
NOTICE
■ To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 457)

1674-1. Before driving
4
Driving
4RUNNER (U)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift
lever or depress the accelerator pedal, this could cause an acc ident or fire
due to engine overheating. Additionally, if the vehicle is park ed in a poorly
ventilated area, exhaust gases may collect and enter the vehicl e, leading to
death or a serious health hazard.
■ When braking
● When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this ma y cause
one side of the vehicle to brake differently than the other sid e. Also, the
parking brake may not securely hold the vehicle.
● If the brake booster device does not operate, do not follow oth er vehicles
closely and avoid hills or shar p turns that require braking.
In this case, braking is still possible, but the brake pedal sh ould be
depressed more firmly than usual. Also, the braking distance wi ll increase.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems; if one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking dist ance will
increase.
If this happens, do not continue to drive the vehicle. Have you r brakes
fixed immediately.

1864-1. Before driving
4RUNNER (U)
●Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before maki ng
turn.
● Note that when making a turn, the trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by mak ing
a wider than normal turning radius.
● Slow down before making a turn, in cross winds, on wet or slipp ery
surfaces, etc.
Increasing vehicle speed can destabilize the trailer.
● Take care when passing other vehicles. Passing requires consider-
able distance. After passing a vehicle, do not forget the lengt h of
your trailer, and be sure you have plenty of room before changi ng
lanes.
● To maintain engine braking efficiency and charging system perfo r-
mance when using engine braking, do not put the transmission in
D.
● Instability happens more frequently when descending steep or lo ng
downhill grades. Before descending, slow down and downshift. Do
not make sudden downshifts while descending steep or long down-
hill grades.
● Avoid holding the brake pedal down too long or applying the bra kes
too frequently. This could cause the brakes to overheat and result in
reduced braking efficiency.
● Due to the added load of the trailer, your vehicle’s engine may over-
heat on hot days (at temperatures over 85°F [30°C]) when drivin g
up a long or steep grade. If the engine coolant temperature gau ge
indicates overheating, immediately turn off the air conditionin g (if in
use), pull your vehicle off the road and stop in a safe spot.
(  P. 457)

1994-2. Driving procedures
4
Driving
4RUNNER (U)■
When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from operating the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■ When the engine switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the electronic key battery is depleted
P. 383
■ Operation of the engine switch
If the switch is not pressed shortly and firmly, the engine swi tch mode may
not change or the engine may not start. The green indicator light on the engine
switch will flash. Press the engine switch
again while turning the steering wheel left
and right.

2074-2. Driving procedures
4
Driving
4RUNNER (U)
To set the parking brake, fully
depress the parking brake pedal
with your left foot while depress-
ing the brake pedal with your right
foot.
(Depressing the pedal again
releases the parking brake.)
■Parking the vehicle
P. 160
■ Usage in winter time
P. 273
Parking brake
U.S.A.Canada
NOTICE
■Before driving
Fully release the parking brake.
Driving the vehicle with the parking brake set will lead to bra ke components
overheating, which may affect braking performance and increase brake
wear.

2624-5. Using the driving support systems
4RUNNER (U)
■Multi-terrain Select is temporarily canceled when
The front-wheel drive control lever is shifted to H4 when Multi -terrain Select is
in ROCK, MOGUL or LOOSE ROCK mode. The mode indicator will flas h until
the lever is shifted back to L4.
■ If the Multi-terrain Select indicator continues to flash
This may indicate a malfunction in the Multi-terrain Select system.
In this case, Multi-terrain Select is automatically canceled. Have your vehicle
inspected by your Toyota dealer.
■ If the Multi-terrain Select indicator goes off while Multi-terr ain Select is
operating
● One of the vehicle systems related to Multi-terrain Select may be malfunc-
tioning.
Have your vehicle inspected by your Toyota dealer.
●
The brake actuator may be at risk of overheating.
A buzzer will sound, the “A-TRAC” indicator will go off and the “TRAC OFF”
indicator will come on. Stop the vehicle in a safe place. Refra in from using
Multi-terrain Select until the “A-TRAC” indicator comes back on and the
“TRAC OFF” indicator goes off. (The vehicle can still be driven , even if Multi-
terrain Select is inoperative.)
In the above cases, Multi-terrain Select is automatically cance led.
CAUTION
■Before driving
To avoid an accident, observe the precautions relating to off-r oad driving.
( P. 276)
■ When using Multi-terrain Select
● Do not use the Multi-terrain Select system for normal (on-road) driving.
The Multi-terrain Select system is designed for off-road use on ly.
● Do not overly rely on Multi-terrain Select. This function does not extend
the vehicle’s performance limitations. Always check the terrain thoroughly
and drive safely.
● The recommended modes for the listed terrains ( P. 257) are only a refer-
ence. The selected mode may not be suitable to actual off-road conditions
due to factors such as the type or unevenness of the terrain or the degree
of incline. Check the actual terrain thoroughly and drive safel y.
● After selecting a mode, make sure that the Multi-terrain Select indicator
and the selected mode indicator come on. If any related indicator flashes,
the vehicle is not under Multi-terrain Select control.

4577-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
●The needle of the engine coolant temperature gauge ( P. 8 1 )
enters the red zone o r a loss of engine power is experienced.
(For example, the vehicle speed does not increase.)
● Steam comes out f rom under the hood.
Stop the vehicle in a safe place and turn off the air condition ing sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks. Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The coolant level is satisfactory
if it is between the “F” and “L”
lines on the reservoir.Reservoir
“F” line
“L” line
Radiator cap
If your vehicle overheats
The following may indicate that your vehicle is overheating:
Correction procedures
1
2
3
1
2
4
1
2
3
4

518Alphabetical index
4RUNNER (U)
Bottle holders .......................... 306
BrakeFluid ...................................... 360
Parking brake........................ 207
Warning light ......................... 417
Brake assist ............................. 263
Break-in tips ............................. 161
Brightness control Instrument panel light control................................... 82
Care................................... 338, 341 Aluminum wheels.................. 339
Exterior ................................. 338
Interior................................... 341
Seat belts .............................. 342
Cargo capacity ......................... 175
Cargo hooks............................. 307
Cargo net hooks ...................... 308
Center differential lock............ 239
Chains....................................... 274
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 Child safety ................................ 52
Airbag precautions.................. 37
Back door precautions .......... 117
Battery precautions....... 364, 456
Child restraint system ............. 53
How your child should
wear the seat belt ................. 31
Installing child restraints ......... 57
Moon roof precautions .......... 157
Power window lock switch .... 146
Power window precautions ... 149
Rear door child-protectors .... 100
Removed electronic key battery precautions ...... 385
Seat belt extender precautions........................... 34
Seat belt precautions .............. 56
Seat heater precautions ....... 295
Child-protectors ...................... 100
Cleaning ........................... 338, 341 Aluminum wheels ................. 339
Exterior ................................. 338
Interior .................................. 341
Seat belts.............................. 342
Clock......................................... 313
Compass .................................... 85
Condenser................................ 360
Console box ............................. 301
Cooling system Engine overheating............... 457
Crawl Control ........................... 253
Cruise control .......................... 225
Cup holders ............................. 302
Curtain shield airbags............... 35
Customizable features ............ 489
C

520Alphabetical index
4RUNNER (U)
EngineACCESSORY mode ............. 197
Compartment ........................ 354
Engine switch................ 193, 196
Hood ..................................... 353
How to start the
engine......................... 193, 196
Identification number ............ 463
If the engine will not start ...... 448
Ignition switch (engine switch) ........... 193, 196
Overheating .......................... 457
Engine coolant ......................... 358 Capacity ................................ 468
Checking ............................... 358
Preparing and checking before winter....................... 272
Engine coolant temperature gauge........................................ 81
Engine immobilizer system ...... 70
Engine oil ................................. 356
Capacity ................................ 465
Checking ............................... 356
Preparing and checking before winter....................... 272
Engine switch .................. 193, 196
Event data recorder (EDR) ........ 10
Flat tire...................................... 433
Floor mats .................................. 26
Fluid Automatic transmission......... 471
Brake .................................... 471
Power steering ...................... 472
Washer ................................. 366
Fog lights ................................. 214 Replacing light bulbs............. 389
Switch ................................... 214
Wattage ................................ 473
Four-wheel drive
system ............................ 235, 239 Front passenger occupant
classification system .............. 46
Front personal lights............... 298
Front seats ............................... 120 Adjustment............................ 120
Cleaning ............................... 341
Correct driving posture ........... 28
Driving position memory ....... 133
Head restraints ..................... 137
Seat heaters ......................... 295
Seat position memory ........... 133
Seat ventilators ..................... 295
Front side marker lights ......... 208 Light switch ........................... 208
Replacing light bulbs ............ 396
Wattage ................................ 473
Front turn signal lights ........... 206
Replacing light bulbs ............ 394
Turn signal lever ................... 206
Wattage ................................ 473
Fuel ........................................... 222 Capacity................................ 464
Fuel gauge.............................. 81
Fuel pump shut off system ... 416
Information............................ 474
Refueling .............................. 222
Type.............................. 222, 464
Warning light......................... 419
Fuel filler door ......................... 222 Refueling .............................. 222
Fuel pump shut off system..... 416
Fuses ........................................ 386
Garage door opener ................ 324
Gauges ....................................... 81
Glove box ................................. 301
Grocery bag hooks.................. 310
F
G

523Alphabetical index
4RUNNER (U)
Outer foot lights....................... 297
Outside rear view mirrors ....... 144Adjusting and folding ............ 144
Outside rear view mirror defoggers ......... 284, 290
Outside temperature display .................................... 314
Overhead console ................... 304
Overheating, Engine................ 457
Parking brake ........................... 207 Operation .............................. 207
Parking brake engaged
warning buzzer ................... 417
Parking lights ........................... 208
Light switch ........................... 208
Replacing light bulbs............. 394
Wattage ................................ 473
Pen holder ................................ 305
Personal lights ......................... 298
Power back window ................ 150 Jam protection function......... 152
Operation .............................. 150
Power outlets ................... 315, 320
Power steering
Fluid ...................................... 362
Warning light ......................... 419
Power windows........................ 146
Door lock linked window operation ............... 148
Jam protection function......... 147
Operation .............................. 146
Window lock switch............... 146 Radiator .................................... 360
Rear differential lock
system.................................... 247
Rear seats
Adjustment............................ 123
Folding down ........ 125, 127, 129
Rear step bumper .................... 116
Rear turn signal lights ............ 206
Replacing light bulbs ............ 400
Turn signal lever ................... 206
Wattage ................................ 473
Rear view mirror Inside rear view mirror .......... 142
Outside rear view mirrors ..... 144
Rear view monitor system
*
Rear window ............................ 150
Rear window defoggers....................... 284, 290
Rear window wiper .................. 219
Refueling .................................. 222
Capacity................................ 464
Fuel types ............................. 464
Opening the fuel tank cap..... 224
Replacing Fuses .................................... 386
Key battery ........................... 383
Light bulbs ............................ 389
Tires...................................... 433
Reporting safety defects
for U.S. owners...................... 498
Resetting the message indicating maintenance
is required.............................. 345
Roof luggage carrier ............... 170
P
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.