2015 TOYOTA 4RUNNER power steering

2404-5. Using the driving support systems
4RUNNER (U)_(OM35B18U)
If all wheels spin, the slip indicator
flashes to indicate that the active
traction control system has been
engaged.
■ When the rear differential is locked (vehicles with a rear differential lock
system)
The active traction control system is activated only when vehicle speed is
less than 4 mph (6 km/h).
■ Sounds and vibrations caused by the active traction 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 does not indicate
that a malfunction has occurred in the system.
● Vibrations may be felt through the vehicle body and steering. This may
occur when the system is operating.
■ If the brake system overheats
The system will cease operation and a buzzer will sound to alert the driver. At
this time, the “A-TRAC” indicator will go off and the “TRAC OFF” indicator will
come on. Stop the vehicle in a safe place. (There is no problem with continu-
ing normal driving.)
The system will be automatically restored after a short time.
When the active traction control system is operating
CAUTION
■The active traction control system may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the active traction control system is operat\
ing.
Do not drive the vehicle in conditions where stability and power may be lost.

3416-2. Maintenance
6
Maintenance and care
4RUNNER (U)_(OM35B18U)
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 “Owner’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 service shop for advice.
Engine compartment
ItemsCheck points
BatteryCheck the connections. (P. 359)
Brake fluidIs the brake fluid at the correct level? ( P. 356)
Engine coolantIs the engine coolant at the correct level? ( P. 354)
Engine oilIs the engine oil at the correct level? (P. 351)
Exhaust systemThere should not be any fumes or strange sounds.
Power steering fluidIs the power steering fluid at the correct level?
(P. 358)
Radiator/condenserThe radiator and condenser should be free from
foreign objects. ( P. 355)
Washer fluidIs there sufficient washer fluid? (P. 362)

3466-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B18U)
Fuses (P. 380)• Fuse with same amperage rating as original
Light bulbs (P. 383)
• Bulb with same number and wattage rating as
original
• Phillips-head screwdriver
• Flathead screwdriver• Wrench
Power steering fluid
level ( P. 358)• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel• Clean funnel
Radiator and con-
denser (P. 355)
Tire inflation pressure
( P. 369)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 362)
• Water or washer fluid containing antifreeze (for
winter use)
• Funnel (used only for adding water or washerfluid)
ItemsParts and tools

3496-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35B18U)
Engine compartment
Washer fluid tank (P. 362)
Power steering fluid reservoir ( P. 358)
Engine oil level dipstick ( P. 351)
Engine coolant reservoir ( P. 354)
Engine oil filler cap ( P. 352) Brake fluid reservoir
( P. 356)
Fuse box ( P. 380)
Battery ( P. 359)
Condenser ( P. 355)
Radiator ( P. 355)1
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8
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10

3586-3. Do-it-yourself maintenance
4RUNNER (U)_(OM35B18U)■
Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 min- utes, or slightly longer in frigid temperatures. (Fluid tempera-
ture, 140°F - 175°F [60°C - 80°C]).
Cold: Engine has not been run fo r about 5 hours. (Room tempera-
ture, 50°F - 85°F [10°C - 30°C]).
■Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turn ing it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.
Power steering fluid
1
2
3
4
Fluid typeAutomatic transmission fluid DEXRON® II or III
ItemsRag or paper, clean funnel (only for adding fluid)
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3
4
5

3596-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)_(OM35B18U)
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
CAUTION
■When checking the reservoir
Take care as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■ After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or
damage.
Battery
1
2

4027-1. Essential information
4RUNNER (U)_(OM35B18U)
CAUTION
■If the engine has to be turned off while driving
● Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
● Vehicles without a smart key system:
Never attempt to remove the key, as doing so will lock the steering wheel.

4077-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B18U)
Part-time 4WD models:
Ty p e A
Shift the front-wheel drive control lever to H2.
Ty p e B
Push the “UNLOCK” button and turn the front-wheel drive control
switch to H2.
Full-time 4WD models: Push the “UNLOCK” button and turn the
four-wheel drive control switch to H4F. (The center differential is
unlocked.)
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 4 4 3
■While towing
If the engine is not running, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■ Wheel nut wrench
Wheel nut wrench is stored in the tool bag. ( P. 428)
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