Page 384 of 564
384 4-2. Maintenance
AVALON_U (OM41428U)
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven pedal
effort or catching)?
Automatic transmission
“Park” mechanism• Can the vehicle be hold securely on an
incline with the shift lever in “P”?
Brake pedal• Moves smoothly?
• Does it have appropriate clearance and
correct amount of free play?
Brakes• Pulls to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints • Move smoothly and lock securely?
Indicators/buzzers • Function properly?
Lights• Do all the lights come on?
• Headlights aimed correctly? (P. 441)
Parking brake• Moves smoothly?
• Can hold the vehicle securely on an
incline?
Seat belts• Does the seat belt system operate
smoothly?
• Are the belts undamaged?
Seats • Do the seat controls operate properly?
Steering wheel• Moves smoothly?
• Has correct free play?
• No strange noises?
Page 434 of 564
434 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1 RR DEF 50 ARear window defogger, outside
rear view mirror defogger
2 ABS/VSC No.2 30 AAnti-lock brake system, vehicle
stability control system
3 RDI FAN 50 A Electric cooling fan
4 ABS/VSC No.1 50 AAnti-lock brake system, vehicle
stability control system
5 HEATER 50 A Air conditioning system
6 ST/AM2 30 A Starter system
7 MAIN 40 A Headlights
8ALT140 A
or
120 ACharging system, RR DEF, ABS/
VSC No.2, HEATER, ABS/VSC
No.1, RDI FAN, WASHER,
S-HORN
Page 441 of 564
441
4-3. Do-it-yourself maintenance
4
Maintenance and care
AVALON_U (OM41428U)
Headlight aim (with discharge headlights)
■Vertical movement bolts
Adjustment bolt A
Adjustment bolt B
■Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area
around the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
Page 453 of 564

4
Maintenance and care
453 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Toyota
dealer replace it.
●Headlights (discharge bulb)
●Side turn signal lights
●Tail lights
●High mounted stoplight
■Condensation build-up on the inside of the lens
Contact your Toyota dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
■LED light bulbs
The side turn signal lights, tail lights and high mounted stoplights consist of a
number of LEDs. If any of the LEDs burn out, take your vehicle to your
Toyota dealer to have the light replaced.
If two or more LEDs in a stoplight burn out, your vehicle may not conform to
local laws (SAE).
■High-intensity discharge (HID) headlights (if equipped)
If voltage to the high-intensity discharge bulbs is insufficient, the light may
not come on, or may go out temporarily. The high-intensity discharge bulbs
will come on when normal power is restored.
Page 454 of 564
454 4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
●Do not take apart or repair the low beam discharge headlight bulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.
Page 455 of 564
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
Page 489 of 564

5
When trouble arises
489
5-2. Steps to take in an emergency
AVALON_U (OM41428U)
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed (
P. 149, P. 153), consider each of the following
points.
■The engine will not start even when the starter motor oper-
ates normally
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
●The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (P. 149)
●There may be a malfunction in the engine immobilizer system.
(P. 9 1 )
■The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume
One of the following may be the cause of the problem.
●The battery may be discharged. (P. 496)
●The battery terminal connections may be loose or corroded.
■The starter motor does not turn over (vehicles with smart
key system).
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(P. 149)
Page 490 of 564

490 5-2. Steps to take in an emergency
AVALON_U (OM41428U)
Emergency start function (vehicles with smart key system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally.
Set the parking brake.
Shift the shift lever to “P”.
Set the “ENGINE START STOP” switch to the ACC mode.
Push and hold the “ENGINE START STOP” switch about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle checked by your Toyota
dealer.
■The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound
One of the following may be the cause of the problem.
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (P. 496)
●There may be a malfunction in the steering lock system (vehi-
cles with smart key system).
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.