2012 TOYOTA 4RUNNER run flat

546 4-3. Do-it-yourself maintenance
4RUNNER_U
CAUTION
■Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions
may occur and result in an accident causing death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resu lting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
Without the valve caps, dirt or mo isture could get into the valve and
cause air leakage, which could result in an accident. If the caps are lost,
replace them as soon as possible.

548 4-3. Do-it-yourself maintenance
4RUNNER_U
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves
and transmitters that allow the tire pressure warning system to provide
advanced warning in the event of a loss in tire inflation pressure. Whenever
wheels are replaced, the tire pressure warning valves and transmitters must
be installed. ( P. 538)
CAUTION
■When replacing wheels
● Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
● Never use an inner tube in a leaking wheel which is designed for a tube-
less tire. Doing so may result in an accident, causing death or serious
injury.
■ When installing the wheel nuts
●
Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.
●Be sure to install the wheel nuts with
the tapered end faci ng inward. Install-
ing the nuts with the tapered end fac-
ing outward can cause wheel to
break and eventually cause a wheel
to come off while driving, which could
lead to an accident resulting in death
or serious injury.
CTH43AS138
Ta p e r e d
portion

552
4-3. Do-it-yourself maintenance
4RUNNER_U
Wireless remote control/electronic key batter y
Replace the battery with a new one if it is depleted.
■You will need the following items:
●Flathead screwdriver
● Lithium battery CR2016 (vehicles without a smart key sys-
tem), or CR1632 (vehicles with a smart key system)
■ Replacing the battery (vehicles without a smart key system)
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
Remove the module.
Open the case cover using a
coin protected with tape etc.
and remove the depleted bat-
tery.
Insert a new battery with the
“+” terminal facing up.
STEP 1
STEP 2
STEP 3

572 4-3. Do-it-yourself maintenance
4RUNNER_U■
Stop/tail and rear side ma rker light and back-up light
Open the back door and remove
the cover.
Using a flathead screwdriver or
equivalent which is wrapped with
a cloth.
Turn the bulb base counterclock-
wise.
Stop/tail and rear side marker
light
Back-up light
Remove the light bulb. Stop/tail and rear side marker
light
Back-up light
CTH43AS042
STEP 1
CTH43AS043
STEP 2
CTH43AS044
STEP 3

573
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
■
Rear turn signal light
Open the back door and remove
the cover.
Using a flathead screwdriver or
equivalent which is wrapped with
a cloth.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
CTH43AS042
STEP 1
CTH43AS045
STEP 2
CTH43AS046
STEP 3

When trouble arises5
577
4RUNNER_U
5-1. Essential informationEmergency flashers ......... 578
If your vehicle needs to be towed ........................ 579
If you think something is wrong ............................. 585
Fuel pump shut off system ........................... 586
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 587
If you have a flat tire......... 603
If the engine will not start ................................ 616
If the shift lever cannot be shifted from P ............ 618
If you lose your keys ........ 619
If you cannot operate back door opener ........... 620
If the electronic key does not operate properly....... 621
If the vehicle battery is discharged ..................... 623
If your vehicle overheats ....................... 627
If the vehicle becomes stuck .............................. 630
If your vehicle has to be stopped in an
emergency ..................... 631

5
When trouble arises
579
5-1. Essential information
4RUNNER_U
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transmission. Contact
your Toyota dealer before towing.
● The engine is running but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available in
an emergency, your vehicle may
be temporarily towed using a
cable or chain secured to the
emergency towing eyelet(s).
This should only be attempted
on hard surfaced roads for short
distances at low speeds.
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commerci al towing service, using a lift-type
truck or flatbed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.
CTH51AS010

582 5-1. Essential information
4RUNNER_U
Using a flatbed truckIf you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.
CTH51AS011
■ Before emergency towing
Vehicles without a smart key system: Turn the engine switch to the
“ACC” (engine off) or “ON” position.
Vehicles with a smart key system: Turn the “ENGINE START STOP” switch to ACCESSORY (engine off) or IGNITION ON mode
(engine running).
Part-time 4WD models: Shift the front-wheel drive control lever to
H2.
Full-time 4WD models: Put the four-wheel drive control switch in
H4F. (The center differential is unlocked.)
Shift the shift lever to N.
Release the parking brake.
STEP 1
STEP 2
STEP 3
STEP 4