2023 TOYOTA 4RUNNER brake fluid

19Pictorial index
4RUNNER (U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 90
When the warning messages are displayed . . . . . . . . . . . . . . P. 488
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 332
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . P. 477, 488
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 212
Headlights/parking lights/tail lights/daytime running lights . .
. . P. 212
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 221
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . P. 223
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 223
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 425
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 466
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 149
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . P. 342, 349
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 342, 349
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 344, 351
Audio/Navigation system
*
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 376
*: Refer to “NAVIGATION AND MULT IMEDIA SYSTEM OWNER’S MANUAL”.
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1754-1. 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.

3144-5. Using the driving support systems
4RUNNER (U)■
Automatic system cancelation
In the following situations, the system will cease operation an d a buzzer will
sound to alert the driver. The Cr awl Control indicator will flash until the system
is turned off completely.
● When the shift lever is shifted to P or N
● When the front-wheel drive control lever or switch is shifted to H4
● When the driver’s door is opened
● When the system is malfunctioning
● When the brake system overheats
Stop the vehicle in a safe place. (There is no problem with continuing normal
driving.)
● When the automatic transmission system overheats
Stop the vehicle in a safe place until the automatic transmission fluid tem-
perature warning light goes off.
■ Sounds and vibrations caused by the Crawl Control system
● A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound do es not indicate
that a malfunction has occurred in Crawl Control system.
● Either of the following conditions may occur when the Crawl Control system
is operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■ When there is a malfunction in the system
Warning lights and/or warning messages will turn on. ( P. 477, 488)
WARNING
■When using Crawl Control
● Do not overly rely on Crawl Control. This function does not ext end the
vehicle’s performance limitations. Always check the terrain tho roughly and
drive safely.
● The recommended speed modes for the listed terrains ( P. 313) are only
a reference. The selected mode may not be suitable to actual off-road con-
ditions due to factors such as the type or unevenness of the te rrain or the
degree of incline. Check the actual terrain thoroughly and drive safely.
● After activating Crawl Control, make sure that the Crawl Control indicator
comes on. If the indicator flashes, the vehicle is not under system control.
■ Conditions under which the syst em may not operate correctly
When driving on the following surfaces, the system may not be able to
maintain a fixed low speed, which may result in an accident:
● Extremely steep inclines
● Extremely uneven surfaces
● Snow-covered roads, or other slippery surfaces

4056-2. Maintenance
6
Maintenance and care
4RUNNER (U)
General maintenance
Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Own er’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified s ervice shop for advice.
Engine compartment
ItemsCheck points
BatteryCheck the connections. (P. 422)
Brake fluidIs the brake fluid at the correct level? ( P. 419)
Engine coolantIs the engine coolant at the correct level? ( P. 417)
Engine oilIs the engine oil at the correct level? (P. 415)
Exhaust systemThere should not be any fumes or strange sounds.
Power steering fluidIs the power steering fluid at the correct level?
(P. 421)
Radiator/condenserThe radiator and condenser should be free from
foreign objects. ( P. 419)
Washer fluidIs there sufficient washer fluid? (P. 425)

409
6
Maintenance and care
4RUNNER (U)
6-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
Battery condition (P. 422)
• Warm water• Baking soda
•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(P. 419)
• FMVSS No.116 DOT 3 or SAE J1703 brake
fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant level (P. 417)
• “Toyota Super Long Life Coolant” or a similar
high quality ethylene glycol-based non-silicate,
non-amine, non-nitrite and non-borate coolant
with long-life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed
with 50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed
with 55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level (P. 415)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)

4136-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)
Engine compartment
Washer fluid tank (P. 425)
Power steering fluid reservoir ( P. 421)
Engine oil level dipstick ( P. 415)
Engine coolant reservoir ( P. 417)
Engine oil filler cap ( P. 416)Brake fluid reservoir
( P. 419)
Fuse box ( P. 450)
Battery ( P. 422)
Condenser ( P. 419)
Radiator ( P. 419)1
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9
10

4196-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dea l e r.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
“MAX” line
“MIN” line
■Adding fluid
Make sure to check the fluid ty pe and prepare the necessary ite m.
■Refilling brake fluid
Turn the engine switch off.
Depress the brake pedal more than 40 times.
Remove the reservoir cap by hand. Add brake fluid up to the
“MAX” line.
If you do not follow the procedure above, the reservoir may over-
flow.
Radiator and condenser
WARNING
■ When the engine is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.
Brake fluid
1
2
Fluid type FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items Clean funnel
1
2
3

4206-3. Do-it-yourself maintenance
4RUNNER (U)
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss o f braking effi-
ciency. Use only newly opened brake fluid.
WARNING
■ When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■ If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.