2012 TOYOTA 4RUNNER engine

304 2-5. Driving information
4RUNNER_U●
Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before mak-
ing turn.
● Note that when making a turn, th e trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a wider than normal turning radius.
● Slow down before making a turn, in cross winds, on wet or slippery
surfaces, etc.
Increasing vehicle speed c an destabilize the trailer.
● Take care when passing other v ehicles. Passing requires consider-
able distance. After passing a vehi cle, do not forget the length of
your trailer, and be sure you hav e plenty of room before changing
lanes.
● To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not put the transmission in
D.
● Instability happens more frequently when descending steep or long
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
brakes 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
overheat on hot days (at temper atures over 85°F [30°C]) when
driving up a long or steep grade. If the engine coolant temperature
gauge indicates overheating, immediately turn off the air condition-
ing (if in use), pull your vehicle off the road and stop in a safe spot.
(  P. 627)

305
2-5. Driving information
2
When driving
4RUNNER_U
●
Always place wheel blocks under both the vehicle’s and the
trailer’s wheels when parking. Ap ply the parking brake firmly, and
put the transmission in P. Avoid pa rking on a slope, but if unavoid-
able, do so only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blo cks under both the vehicle’s
and trailer’s wheels.
When the wheel blocks are in pl ace, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into P and turn off the engine.
● When restarting after parking on a slope:
With the transmission in P, start the engine. Be sure to keep
the brake pedal pressed.
Shift into a forward gear. If reversing, shift into R.
Release the parking brake and brake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3
STEP 4

307
2-5. Driving information
2
When driving
4RUNNER_U
■
Break-in schedule
If your vehicle is new or equipped with any new power train components
(such as an engine, transmission, differential or wheel bearing), Toyota rec-
ommends that you do not tow a trailer until the vehicle has been driven \
for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can s\
tart
towing. However, for the next 500 miles (800 km), drive the vehicle at a
speed of less than 45 mph (72 km/h) when towing a trailer, and avoid full
throttle acceleration.
■ Maintenance
● If you tow a trailer, your vehicle will require more frequent maintenance
due to the additional load. (See “Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.)
● Retighten the fixing bolts of the towing ball and bracket after approxi-
mately 600 miles (1000 km) of trailer towing.
■ If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.
● If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.
• Begin releasing the accelerator pedal immediately but very gradually to reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize.

319
3-1. Using the air conditioning system
and defogger
3
Interior features
4RUNNER_U
■Air conditioning odors
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

327
3-1. Using the air conditioning system
and defogger
3
Interior features
4RUNNER_U
■When outside air temperature is below 32°F (0°C)
The cooling and dehumidification function may not operate even when
is pressed.
■ When the indicator light on flashes
Press
to turn off the cooling and dehumidification function and turn it
on again. There may be a problem in the air conditioning system if the indi-
cator light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ Air conditioning odors
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic
mode.
CAUTION
■To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

329
3-1. Using the air conditioning system
and defogger
3
Interior features
4RUNNER_U
■The defoggers can be operated when
● Vehicles without a smart key system:
The engine switch is in the “ON” position.
Vehicles with a smart key system:
The “ENGINE START STOP” switch is in IGNITION ON mode.
● The back window is completely closed.
■ The outside rear view mirror defoggers
Turning the rear window defogger on will turn the outside rear view mirror
defoggers on.
CAUTION
■ When the outside rear view mirror defoggers are on
Do not touch outside surface of the rear view mirrors, as they can become
very hot and burn you.

330
3-1. Using the air conditioning system and defogger
4RUNNER_U
Windshield wiper de-icer
■The windshield wiper de-icer can be operated when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The “ENGINE START STOP” switch is in IGNITION ON mode.
CAUTION
■ When the windshield wiper de-icer is on
Do not touch the lower part of the windshield or the side of the front pillars,
as the surfaces can become very hot and burn you.
: If equipped
This feature is used to prevent ice from building up on the wind-
shield and wiper blades.
Turns the windshield wiper de-
icer on/off
The windshield wiper de-icer
will automatically turn off after
approximately 15 minutes.
CTH31AS020

337
3-2. Using the audio system
3
Interior features
4RUNNER_U
Co-location:
This transmitter must not be co-located or operated in conjunction with any
other antenna or transmitter.
CAUTION
■
For vehicles sold in the U.S.A. and Canada
● Part 15 of the FCC Rules and RSS-Gen of the IC Rules
FCC Warning:
Changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.\
● Laser products
• Do not take this unit apart or attempt to make any changes yourself.
This is an intricate unit that uses a laser pickup to retrieve information
from the surface of compact discs. The laser is carefully shielded so
that its rays remain inside the cabinet. Therefore, never try to disas-
semble the player or alter any of its parts since you may be exposed to
laser rays and dangerous voltages.
• This product utilizes a laser. Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation expo-
sure.
• The use of optical instruments with this product will increase eye haz- ard.
NOTICE
■To prevent battery discharge
Do not leave the audio system on longer than necessary with the engine o\
ff.
■ To avoid damaging the audio system
Take care not to spill drinks or other fluids over the audio system.