2011 TOYOTA AVALON engine

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
AVALON_U (OM41428U)
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. (P. 515)
■Remove the engine compartment cover
P. 395
■Front bulb locations
Front side marker light
Front turn signal/parking light
Front fog light Headlight high beam and
daytime running light Auxiliary lightHeadlight low beam

4
Maintenance and care
455 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
CAUTION
■High-intensity discharge (HID) headlights (if equipped)
●Contact your Toyota dealer before replacing high-intensity discharge
headlights (including light bulbs).
●Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on. An extremely high voltage of 20000V
will be discharged and could result in serious injury or death by electric
shock.
■To prevent damage or fire
Make sure bulbs are fully seated and locked.
●Low beam metal back cover may be
very hot after operation of engine and/
or low beams. To avoid potential burn,
do not touch metal back cover under
these conditions.
When replacing the high beam lights
and parking lights, take care as you will
probably touch the low beam metal
back cover.
ITN43A085

When trouble arises5
457
AVALON_U (OM41428U)
5-1. Essential information
Emergency flashers ......... 458
If your vehicle needs
to be towed .................... 459
If you think something is
wrong ............................. 463
Fuel pump shut off
system ........................... 464
Event data recorder ......... 465
5-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ........................ 467
If you have a flat tire......... 479
If the engine will
not start .......................... 489
If the shift lever cannot
be shifted from P ............ 491
If you lose your keys ........ 492
If the electronic key does
not operate properly (with
smart key system) .......... 493
If the vehicle battery is
discharged ..................... 496
If your vehicle
overheats ....................... 500
If the vehicle becomes
stuck .............................. 503
If your vehicle has to be
stopped in an
emergency ..................... 504

458
AVALON_U (OM41428U)
5-1. Essential information
Emergency flashers
NOTICE
■To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
Use the emergency flashers if the vehicle malfunctions or is
involved in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.

5
When trouble arises
459
5-1. Essential information
AVALON_U (OM41428U)
If your vehicle needs to be towed
Before towing
The 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.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commercial towing service, using a lift-type
truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/pro-
vincial and local laws.
If towing from the front, the vehicle’s rear wheel and axles must be in
good condition. (P. 461)
If they are damaged, use a towing dolly or flat bed truck.

5
When trouble arises
463
5-1. Essential information
AVALON_U (OM41428U)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points
higher than normal
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

464
5-1. Essential information
AVALON_U (OM41428U)
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles with smart key system: Turn the “ENGINE START
STOP” switch OFF.
Vehicles without smart key system: Turn the engine switch to
the “ACC” or “LOCK” position.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an air-
bag inflates upon collision, the fuel pump shut off system stops sup-
plying fuel to the engine.

5
When trouble arises
465
5-1. Essential information
AVALON_U (OM41428U)
Event data recorder
In a crash or a near car crash event
The SRS airbag sensor assembly contains the EDR. In a crash or a
near car crash event, this device may record some or all of the follow-
ing information:
●Engine speed
●Whether the brake pedal was applied or not
●Vehicle speed
●To what extent the accelerator pedal was depressed
●Position of the transmission shift lever
●Whether the driver and front passenger wore seat belts or not
●Driver’s seat position
●Front passenger’s occupant classification
●SRS airbag deployment data
●SRS airbag system diagnostic data
The information above is intended to be used for the purpose of
improving vehicle safety performance. Unlike general data recorders,
the EDR does not record sound data such as conversation between
passengers.
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assist in driving and maintaining
optimal vehicle performance.
Besides storing data useful for troubleshooting, there is a system to
record data in a crash or a near car crash event. This is called an
Event Data Recorder (EDR).