engine TOYOTA AVALON 2006 XX30 / 3.G Service Manual

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Shift range positions
“5” (Fifth range):
The most suitable gear is selected au-
tomatically between first and overdrive
(fifth) gears according to the vehicle
speed or driving conditions.
“4” (Fourth range):
The most suitable gear is selected au-
tomatically between first and fourth
gears according to the vehicle speed
or driving conditions. Slight engine
braking will be obtained on a downhill
road. Smooth running with less shifting
will be obtained on an uphill road.
“3” (Third range):
The most suitable gear is selected au-
tomatically between first and third
gears according to the vehicle speed
or driving conditions. This range is to
be used when stronger engine braking
is necessary.
“2” (Second range):
First or second gear will be selected
automatically according to the vehicle
speed or driving conditions. This range
is to be used when engine braking
stronger than that of the “3” range
position is necessary.
“1” (First range):
The gear is fixed in first regardless of
vehicle speed or driving conditions.
This range is to be used when maxi-
mum engine braking is necessary.
If you attempt to downshift the transmis-
sion when it is not possible to downshift
due to high vehicle speed, a warning tone
sounds twice.
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speeds in each
range: range km/h (mph)1 59 (37)
2 106 (66)
3 165 (103)
NOTICE
Do not downshift if you are going
faster than the maximum allowable
speed for the next lower range.
When the “S” mode indicator light does
not come on even with the selector lever
moved to the sequential position, there
may be a problem somewhere in the
system. Have your vehicle checked/re-
paired by your Toyota dealer as soon as
possible. In this case, you can drive in
the same condition as in the “D” position.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
When driving in the “D” position—Shift the selector lever to sequential
position.
When driving in the “5” range within
the sequential position— Move the selector lever down to the
“− ” side to select the “4” range.
The transmission will downshift to
fourth range and engine braking will be
enabled.
Vehicles with cruise control or dynamic
laser cruise control—When the cruise
control is being used, engine braking
can not be enabled because the cruise
control is not cancelled.

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164
For ways to decrease the vehicle speed,
see “Cruise control” on page 169 or “Dy-
namic laser cruise control” on page 172
in this Section.
Move the selector lever down to the
“− ” side to select the “3” range. The
transmission will downshift to third
range when the vehicle speed drops
down to or lower than 147 km/h (91
mph), and stronger engine braking will
be enabled.
Move the selector lever down to the
“ − ” side to select the “2” range. The
transmission will downshift to second
range when the vehicle speed drops
down to or lower than 91 km/h (56
mph), and more powerful engine brak-
ing than that of the “3” range position
will be enabled.
Move the selector lever down to the
“ − ” side to select the “1” range. The
transmission will downshift to first
range when the vehicle speed drops
down to or lower than 39 km/h (24
mph), and maximum engine braking will
be enabled.
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to skid or
spin.
(e) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the selector lever to the
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(f) Parking
1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down, fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down, shift the selector lever to the “P” posi-
tion.
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.

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165
(g) Good driving practice
If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope,
shift the selector lever into sequential
position.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le-ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 325 in Section 4. The traction control system automatical-
ly helps prevent the spinning of front
wheels when the vehicle is started or
accelerated on slippery road surfaces.
When the ignition switch is set at ON, the
system automatically turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power against front wheels cannot be
maintained, even though the traction
control system is in operation. Do not
drive the vehicle under any speed or
maneuvering conditions which may
cause the vehicle to lose traction
control. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
Traction control system

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NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the trac-
tion control system is in the self−check
mode, but does not indicate a malfunction. When the traction control system is oper-
ating, the following conditions occur:
The system controls the spinning of the
front wheels. At this time, the slip indi-
cator light blinks.
You may feel vibration or noise in your
vehicle, caused by operation of the
brakes. This indicates the system is
functioning properly.
The slip indicator light comes on for a few
seconds when the ignition switch is set at
ON. If the indicator light does not come
on when the ignition is turned on, contact
your Toyota dealer.
“VSC” warning light
This light warns that there is a problem
somewhere in the traction control system
or the vehicle stability control system.
The light will come on when the ignition
switch is set at ON and will go off after
a few seconds.
If the light comes on while driving, the
system does not work. However, as con-
ventional braking operates when applied,
there is no problem to continue your driv-
ing.

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In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition switch is set at ON.
The warning light remains on after the
ignition switch is set at ON.
The warning light comes on while driv-
ing.The vehicle stability control system
helps provide integrated control of the
systems such as antilock brake sys-
tem, traction control, engine control,
etc. This system automatically controls
the brakes and engine to help prevent
the vehicle from skidding when corner-
ing on a slippery road surface or oper-
ating steering wheel abruptly.
This system will activate when your ve-
hicle speed reaches or exceeds 15 km/h
(9 mph), and will deactivate when the ve-
hicle speed reduces to below 15 km/h (9
mph).
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the sys-
tem is in the self
−check mode but does
not indicate a malfunction.
CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the vehicle stability control sys-
tem is operating, you must always
drive carefully and attentively to
avoid serious injury. Reckless driv-
ing will result in an unexpected ac-
cident. If the slip indicator light
flashes and an alarm sounds, spe-
cial care should be taken while
driving.
Only use tires of specified size. The
size, manufacture, brand and tread
pattern for all 4 tires should be the
same. If you use the tires other
than specified, different type or
size, the vehicle stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 357 in Section 72.)
In situations where the road surface
is covered with ice or snow, your
vehicle should be fitted with snow
tires or tire chains.
Vehicle stability control
system

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Ty p e A
Ty p e B
When parking, firmly apply the parking
brake to avoid inadvertent creeping.
To set: Fully depress the parking brake
pedal. For better holding power, first de-
press the brake pedal and hold it while
setting the parking brake.
To release: Depress the parking brake
pedal while depressing the brake pedal.
To remind you that the parking brake is
set, the parking brake reminder light in
the instrument panel remains on until you
release the parking brake.
CAUTION
Before driving, be sure the parking
brake is fully released and the park-
ing brake reminder light is off.
The cruise control allows you to cruise
the vehicle at a desired speed over 40
km/h (25 mph) with your foot off the
accelerator pedal.
Your cruising speed can be maintained
although a slight speed change may occur
when driving up or down gradient, within
the limits of engine performance. On
steeper hills, a greater speed change will
occur so it is better to drive without the
cruise control.
CAUTION
To help maintain maximum control
of your vehicle, do not use the
cruise control when driving in
heavy or varying traffic, or on slip-
pery (rainy, icy or snowcovered) or
winding roads.
Parking brakeCruise control

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170
Avoid vehicle speed increases when
driving downhill. If the vehicle
speed is too fast in relation to the
cruise control set speed, cancel the
cruise control then downshift the
transmission to use engine braking
to slow down.
TURNING THE SYSTEM ON
To operate the cruise control, push
“ON−OFF” button. This turns the system
on. The indicator light in the instrument
cluster shows that you can now set your
desired cruising speed. Another push will
turn the system completely off.
When the ignition key is turned off, the
system automatically turned off. To use
the cruise control again, push “ON −OFF”
button again to turn it on.
CAUTION
To avoid accidental cruise control en-
gagement, keep the cruise control
system off when not using the cruise
control.

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172
However, a faster way to reset is to de-
press the brake pedal and then push the
lever down in the “− SET” direction.
Even if you downshift the transmission
from the “D” position or “5” (fifth range)
to “4” (fourth range) in sequential mode
with the cruise control on, engine braking
will not be enabled because the cruise
control is not cancelled. To decrease the
vehicle speed, reset to a slower speed
with the cruise control lever or depress
the brake pedal. If you use the brake
pedal, cruise control is cancelled.
RESUMING THE PRESET SPEED
If the preset speed is cancelled by pulling
the control lever or by depressing the
brake pedal, pushing the lever up in the
“+ RES” direction will restore the speed
set prior to cancellation.
If the preset speed is cancelled when ve-
hicle speed falls below about 40 km/h (25
mph), the preset speed will be resumed
by pushing the control lever up in the “+
RES” direction when vehicle speed ex-
ceeds about 40 km/h (25 mph) again.CRUISE CONTROL FAILURE WARNING
If “CRUISE” indicator light in the instru-
ment cluster flashes when using the
cruise control, push “ON
−OFF” button to
turn the system off and then push it again
to turn it on.
If any of the following conditions then oc-
curs, there is some trouble in the cruise
control system.
The indicator light does not come on.
The indicator light flashes again.
The indicator light goes out after it
comes on.
If this is the case, contact your Toyota
dealer and have your vehicle inspected. Dynamic laser cruise control allows you
to drive at a selected cruising speed
over about 45 km/h (28 mph) with your
foot off the accelerator pedal, maintain-
ing an appropriate vehicletovehicle
distance.
CAUTION
Do not rely excessively on dynamic
laser cruise control in order to avoid
serious injury or death, or to prevent
accidents or to control the vehicle’s
speed in emergency situations. Do
not use cruise control except in ap-
propriate road and traffic conditions.
Always drive carefully and attentively.
Before using dynamic laser cruise
control, read and understand the fol-
lowing instructions.
Dynamic laser cruise control—

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CAUTION
To avoid accidents, always keep the
laser radar sensor glass clean and
never allow it to be covered with
icicle or any substance, so it can de-
tect the vehicle in front. (See “LASER
RADAR SENSOR” on page 183.)
CAUTION
Do not rely excessively on dynamic
laser cruise control. Observe the fol-
lowing precautions in order to avoid
serious injury or death:
Under certain conditions where the
vehicle in front slows drastically, or
is stopped, the dynamic laser cruise
control will neither warn you nor
decelerate. You must depress the
brake pedal to slow down, ensuring
collision avoidance or that suffi-
cient vehicletovehicle distance is
maintained.
Do not use dynamic laser cruise
control in the following conditions:
In bad weather (such as rain, fog,
snow, sandstorms or direct sun-
light, or when raindrops or snow-
flakes get on the laser radar sensor
glass), the vehicletovehicle dis-
tance will not be measured accura-
tely.
When using the windshield wipers
at high or low speeds the dynamic
laser radar cruise control turns off.
On roads with heavy traffic or
sharp bends, an appropriate speed
cannot be maintained and an acci-
dent may occur.
On slippery road surfaces (icy or
snowcovered road surfaces), the
tires will race and you will be un-
able to control the vehicle.
When there is no vehicle detected
ahead on steep downhill slopes, the
preset speed will be easily exceed-
ed because of inefficient engine
braking. (In this case, automatic
braking will not work.) If there is a
vehicle detected ahead, the delay in
deceleration timing could cause se-
rious injury or death.
When the alarm sounds frequently
(because acceleration or decelera-
tion was repeated or sufficient ve-
hicletovehicle distance was not
maintained), an appropriate vehicle
speed cannot be attained and an
accident may occur.

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RESETTING TO A FASTER SPEED
Push the lever up in the “+ RES” direction
and hold it. The displayed speed will in-
crease in increments of 5 mph. Release
the lever when the desired speed is attai-
ned. The vehicle speed will gradually in-
crease to the display speed.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
lever down in the “− SET” direction.
CAUTION
When the vehicletovehicle distance
control is on, your cruising speed is
regulated in proportion to the speed
of the vehicle ahead, so increasing
the preset speed using the control
lever does not accelerate the vehicle.
However, if the vehicle ahead leaves
the lane, your cruising speed will in-
crease to the preset speed because
the preset speed has been set higher
using the control lever. Confirm the
setting on the display.
RESETTING TO A SLOWER SPEED
Push the lever down in the “− SET” direc-
tion and hold it. The displayed speed will
decrease in increments of 5 mph. Release
the lever when the desired speed is attai-
ned. The vehicle speed will gradually de-
crease to the display speed.
However, a faster way to reset is to de-
press the brake pedal and then push the
lever down in the “− SET” direction.
If the control lever is released when the
vehicle speed exceeds the upper limit of
the preset speed traveling downhill while
you are pushing the lever down, the sys-
tem will memorize the upper limit of the
preset speed as a preset speed.
Even if you downshift the transmission
from “D” position or “5” (fifth range) to “4”
(fourth range) in sequential mode in the
vehicle− to−vehicle distance control mode,
engine braking will not be enabled be-
cause this mode is not cancelled. To de-
crease the vehicle speed, reset to a slow-
er speed with the cruise control lever or
depress the brake pedal. If you use the
brake pedal, cruise control is cancelled. RESUMING THE PRESET SPEED
If the preset speed has been cancelled,
when you push the lever up in the
“+ RES” direction while the “READY” indi-
cator in the instrument cluster comes on
at a vehicle speed of more than 40 km/h
(25 mph), the speed set prior to cancella-
tion will be restored.
During follow
−up cruising, if there are no
vehicles ahead because they have
changed lanes, your vehicle will accelerate
gradually up to the preset speed. At this
time, pushing the lever up in the “+ RES”
direction will quickly speed up your ve-
hicle in vehicle −to −vehicle distance control
mode.