2006 TOYOTA AVALON check engine

’06 AVALON_U (L/O 0508)
294
Smart key system warning light
SYSTEM FUNCTION REMINDERS
Follow the instructions described below if
any of the following warnings occur:(A) A warning buzzer sounds once from
the instrument cluster when the igni-
tion switch is turned on
This indicates that the driver has gotten
into the vehicle without the key. The smart
key system warning light on the instru-
ment panel will come on.
Operate the ignition switch only after tak-
ing care that the key is in the vehicle.
(B) A warning buzzer beeps repeatedly from the instrument cluster when
opening the driver ’s door
This indicates that the ignition switch is
not set at OFF although the transmission
selector lever has been set in the “P”
position.
Get out of the vehicle only after turning
off the engine by pressing the “ENGINE
START STOP” switch and checking that
the ignition switch indicator light has gone
off. (C) A warning buzzer sounds once from
the instrument cluster, accompanied
by three warning sounds from the
vehicle when the driver gets out of
the vehicle and closes the door
This indicates that the driver is attempting
to leave the vehicle carrying the key, ne-
glecting to follow the instructions for case
(B) above. In addition, the smart key sys-
tem warning light on the instrument panel
will come on.
Get out of the vehicle only after turning
off the engine by pressing the “ENGINE
START STOP” switch and checking that
the ignition switch indicator light has gone
off. If the driver returns to the vehicle
without carrying the key and begins driv-
ing, a warning buzzer will sound once
more.

’06 AVALON_U (L/O 0508)
295
(D) A warning buzzer sounds from thevehicle for two seconds after locking
the door with the door handle switch
This indicates that the driver is attempting
to lock the doors while carrying the key,
neglecting to follow the instructions for
cases (B) and (C) above.
Lock the doors only after turning off the
engine by pressing the “ENGINE START
STOP” switch and checking that the igni-
tion switch indicator light has gone off.
A warning buzzer that sounds even though
the engine has been turned off indicates
that you are attempting to lock the vehicle
with the keys still in the vehicle.
Leave the vehicle only after making sure
that you are carrying the key. (E) A warning buzzer sounds continu-
ously from the instrument cluster
when opening the driver ’s door
This indicates that the transmission selec-
tor lever is in a position other than “P”
and that the ignition switch is not set at
OFF.
Get out of the vehicle only after setting
the transmission selector lever in the “P”
position, turning off the engine by pressing
the “ENGINE START STOP” switch and
checking that the ignition switch indicator
light has gone off. (F) A warning buzzer sounds continu-
ously from the instrument cluster
and from the vehicle when closing
the door after getting out of the ve-
hicle
This indicates that the driver is attempting
to leave the vehicle carrying the key, ne-
glecting to follow the instructions for case
(E) above. The smart key system warning
light on the instrument panel will come on.
Get out of the vehicle only after setting
the transmission selector lever in the “P”
position, turning off the engine by pressing
the “ENGINE START STOP” switch and
checking that the ignition switch indicator
light has gone off.

’06 AVALON_U (L/O 0508)
296
(G) A warning buzzer sounds once fromthe instrument cluster and three
times from the vehicle when a pas-
senger is getting out of the vehicle
This indicates that the passenger is at-
tempting to leave the vehicle carrying the
key, without the ignition switch is not set
at OFF. The smart key system warning
light on the instrument panel will also
come on.
When passengers get out of the vehicle,
care should be taken to leave the key
with the driver. If the driver begins driving
after a passenger gets out of the vehicle
carrying the key, a warning buzzer will
sound once more.
(H) A warning buzzer sounds from the vehicle for two seconds when lock-
ing the vehicle from the outside with
the door handle switch
This indicates that the driver is attempting
to lock the door with the key still in the
vehicle.
Leave the vehicle only after making sure
that you are carrying the key. (I) A warning buzzer sounds once from
the instrument cluster when turning
off the ignition switch
This indicates that the key battery is low.
(This warning buzzer sounds only when
the engine has been on or the ignition
switch has been set at the ON for 20
minutes or more.)
Change the key battery ahead of time in
order to ensure that the smart key system
properly.
(J) A warning buzzer sounds continu- ously from the instrument cluster
when opening the driver’s door with
the ignition switch turned off.
This indicates that the steering wheel is
not locked. Turn the engine off and then
open the door in order to lock the steering
wheel. (K) The “ENGINE START STOP” switch
flashes green once every second.
This indicates that the steering lock is
stuck. To free it, rock the steering wheel
slightly while pressing the “ENGINE
START STOP” switch.
(L) The “ENGINE START STOP” switch flashes amber once every 2 seconds.
This indicates a problem with the push
button start function or the steering lock
function. Have your vehicle checked at a
Toyota dealer.

’06 AVALON_U (L/O 0508)
297
THEFT PREVENTION FUNCTION
When the engine is turned off, the en-
gine immobilizer system is automatical-
ly set. (See “Engine immobilizer sys-
tem” on page 16 in Section 1−2.)
When the driver ’s door is opened after
turning off the engine, the steering
wheel will lock.
When the vehicle’s battery is dis-
charged, the steering lock function may
not operate properly.
Always slow down in gusty crosswinds.
This will allow you much better control.
Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp −edged objects and
other road hazards. Failure to do so
can lead to severe tire damage such
as a tire burst.
Drive slowly when passing over bumps
or travelling on a bumpy road. Other-
wise, the impact could cause severe
damage to the tires and/or wheels.
When parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in “P”. If necessary, block the
wheels.
Washing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake applied. If they still do not
work safely, pull to the side of the road
and call a Toyota dealer for assistance.
CAUTION
Before driving off, make sure the
parking brake is fully released and
the parking brake reminder light is
off.
Do not leave your vehicle unat-
tended while the engine is running.
Do not rest your foot on the brake
pedal while driving. It can cause
dangerous overheating, needless
wear, and poor fuel economy.
To drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat and
not work properly.
Be careful when accelerating, up-
shifting, downshifting or braking on
a slippery surface. Sudden accelera-
tion or engine braking, could cause
the vehicle to skid or spin.
Tips for driving in various
conditions

’06 AVALON_U (L/O 0508)
298
Do not drive in excess of the speed
limit. Even if the legal speed limit
permits it, do not drive over 140
km/h (85 mph) unless your vehicle
has highspeed capability tires.
Driving over 140 km/h (85 mph) may
result in tire failure, loss of control
and possible injury. Be sure to con-
sult a tire dealer to determine
whether the tires on your vehicle
are highspeed capability tires or
not before driving at such speeds.
Do not continue normal driving
when the brakes are wet. If they are
wet, your vehicle will require a
longer stopping distance, and it
may pull to one side when the
brakes are applied. Also, the park-
ing brake will not hold the vehicle
securely.
Make sure you have a proper freeze
protection for engine coolant.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based non−silicate, non −amine, non −nitrite,
and non− borate coolant with long −life
hybrid organic acid technology. (Coolant
with long −life hybrid organic acid
technology is a combination of low
phosphates and organic acids.)
See “Checking the engine coolant level”
on page 352 in Section 7 −2 for details of
coolant type selection.
For the U.S.A.—“Toyota Super Long Life
Coolant” is a mixture of 50% coolant and
50% deionized water. This coolant pro-
vides protection down to about −35 C
( − 31 F).
For Canada—“Toyota Super Long Life
Coolant” is a mixture of 55% coolant and
45% deionized water. This coolant pro-
vides protection down to about −42 C
( − 44 F).
NOTICE
Do not use plain water alone.
Check the condition of the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape to
provide enough power for winter starting.
Section 7 −3 tells you how to visually in-
spect the battery. Your Toyota dealer and
most service stations will be pleased to
check the level of charge.
Make sure the engine oil viscosity is
suitable for the cold weather.
See page 351 in Section 7 −2 for recom-
mended viscosity. Leaving a heavy sum-
mer oil in your vehicle during winter
months may cause harder starting. If you
are not sure about which oil to use, call
your Toyota dealer—they will be pleased
to help.
Keep the door locks from freezing.
Squirt lock de −icer or glycerine into the
locks to keep them from freezing.
Use a washer fluid containing an anti-
freeze solution.
This product is available at your Toyota
dealer and most auto parts stores. Follow
the manufacturer ’s directions for how
much to mix with water.
Winter driving tips

’06 AVALON_U (L/O 0508)
299
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle’s paint.
Do not use your parking brake when
there is a possibility it could freeze.
When parking, put the transmission into
“P” and block the rear wheels. Do not use
the parking brake, or snow or water accu-
mulated in and around the parking brake
mechanism may freeze, making it hard to
release.
Keep ice and snow from accumulating
under the fenders.
Ice and snow built up under your fenders
can make steering difficult. During bad
winter driving, stop and check under the
fenders occasionally.
Depending on where you are driving,
we recommend you carry some emer-
gency equipment.
Some of the things you might put in the
vehicle are tire chains, window scraper,
bag of sand or salt, flares, small shovel,
jumper cables, etc.
Your vehicle is not designed to be
dinghy towed (with four wheels on the
ground) behind a motorhome.
NOTICE
Do not tow your vehicle with four
wheels on the ground. This may
cause serious damage to your vehicle.
Your vehicle is designed primarily as a
passenger−carrying vehicle. Towing a
trailer will have an adverse effect on
handling, performance, braking, durability
and driving economy (fuel consumption,
etc.). Your safety and satisfaction depend
on the proper use of correct equipment
and cautious driving habits. For your
safety and the safety of others, you must
not overload your vehicle or trailer. Toyota
warranties do not apply to damage or
malfunction caused by towing a trailer for
commercial purposes. Ask your local
Toyota dealer for further details before
towing.
NOTICE
When towing a trailer, be sure to con-
sult your Toyota dealer for further in-
formation on additional requirements
such as a towing kit, etc.
Dinghy towing Trailer towing

’06 AVALON_U (L/O 0508)
302
BRAKES AND SAFETY CHAINS
Toyota recommends trailers with
brakes that conform to any applica-
ble federal and state/provincial regu-
lations.
A safety chain must always be used
between the towing vehicle and the
trailer. Leave sufficient slack in the
chain for turns. The chain should
cross under the trailer tongue to
prevent the tongue from dropping to
the ground in case it becomes dam-
aged or separated. For correct safety
chain procedures, follow the hitch or
trailer manufacturer ’s recommenda-
tions.
CAUTION
If the total trailer weight exceeds
454 kg (1000 lb.), trailer brakes are
required.
Never tap into your vehicle’s hy-
draulic system as it would lower its
braking effectiveness.
Never tow a trailer without using a
safety chain securely attached to
both the trailer and the vehicle. If
damage occurs to the coupling unit
or hitch ball, there is danger of the
trailer wandering over into another
lane.
TIRES
Ensure that your vehicle’s tires are
properly inflated. See Section 7−2 and
Section 8 for instructions.
The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.
TRAILER LIGHTS
Trailer lights must comply with federal,
state/provincial and local regulations.
See your local recreational vehicle
dealer or rental agency for the correct
type of wiring and relays for your trail-
er. Check for correct operation of the
turn signals and stop lights each time
you hitch up. Direct splicing may dam-
age your vehicle’s electrical system
and cause a malfunction of your lights. BREAKIN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearing, etc.) for the first
800 km (500 miles) of driving.
MAINTENANCE
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. For this informa-
tion, please refer to the scheduled
maintenance information in the “Sched-
uled Maintenance Guide” or “Owner ’s
Manual Supplement”.
Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.
PRETOWING SAFETY CHECK
Check that your vehicle remains level
when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has
an abnormal nose −up or nose −down
condition, and check for improper
tongue load, overload, worn suspension
or other possible causes.

’06 AVALON_U (L/O 0508)
308
Before making these checks, make sure
you have followed the correct starting
procedure given in “How to start the
engine” on page 290 in Section 3 and that
you have sufficient fuel. Also, check
whether the other keys will start the
engine. If they work, your key may be
broken. Have the key checked at your
Toyota dealer. If none of your keys work,
there may be a malfunction in the immobi-
lizer system. Call your Toyota dealer. (See
“Keys” on pages 12 or 14 in Section 1−2.)
If the engine is not turning over or is
turning over too slowly— 1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked, the battery
is discharged. You may try jump start-
ing. See “(c) Jump starting” on page
309 for further instructions.
4. With smart key system—If the engine does not start even after the battery
has been recharged or replace, see
“(d) Starting the engine after a battery
discharge” on page 311 for further in-
struction. If the light is O.K., but the engine still will
not start, it needs adjustment or repair.
Call a Toyota dealer or qualified repair
shop.
NOTICE
Do not pull or pushstart the ve-
hicle. Your vehicle may suddenly
move when the engine starts, and
may damage itself or cause a colli-
sion. Also the threeway catalytic
converter may overheat and become a
fire hazard.
If the engine turns over at its normal
speed but will not start—
1. Set the ignition switch to ACC or off and try starting the engine again.
2. If the engine will not start, the engine may be flooded because of repeated
cranking. See “(b) Starting a flooded
engine” on page 308 for further instruc-
tions.
3. If the engine still will not start, it needs adjustment or repair. Call a Toyota
dealer or qualified repair shop. If the engine will not start, your engine
may be flooded because of repeated
cranking.
With key cylindertype ignition switch—
If this happens, turn the key to “START”
with the accelerator pedal fully depressed.
Keep the key and accelerator pedal in
these positions for 15 seconds and re-
lease them. Then try starting the engine
with your foot off the accelerator pedal.
With smart key system—
If this happens, press the “ENGINE
START STOP” switch (engine switch) with
the brake pedal and the accelerator pedal
fully depressed, and hold the “ENGINE
START STOP” switch for about 30
seconds. Then the cranking hold function
stops cranking automatically, and you can
try starting the engine with your foot off
the accelerator pedal.
If the engine does not start, wait a few
minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call a Toyota dealer
or qualified repair shop for assistance.
If your vehicle will not start—
(a) Simple checks
(b) Starting a flooded engine