Page 434 of 584

4346-3. Do-it-yourself maintenance
Make sure that the 12-volt battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■ Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautio ns before
recharging:
● If recharging with the 12-volt battery installed on the vehicle , be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connectin g and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
●Unlocking the doors using the smart key system may not be possi ble imme-
diately after reconnecting the 12-volt battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the do ors.
● Start the hybrid system with the power switch in ACCESSORY mode . The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-vol t battery is
reconnected, the vehicle will return the power switch mode to t he status it
was in before the 12-volt battery was disconnected. Make sure t o turn off
the power before disconnecting the 12-volt battery. Take extra care when
connecting the 12-volt battery if the power switch mode prior t o discharge is
unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
Exterior
1
2
Page 462 of 584

4626-3. Do-it-yourself maintenance
When installing the key cover and mechanical key, install by con-
ducting and with the directions reversed.
Operate the or switch and check that the doors can
be locked/unlocked.
■When replacing the key battery
Be careful not to lose the battery or any other small parts.
■ Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the key battery is depleted
The following symptoms may occur:
●The smart key system and wireless remote control will not funct ion properly.
● The operational range will be reduced.
WARNING
■ Battery precautions
Observe the following precautions.
Failure to do so may result in death or serious injury.
● Do not swallow the battery. Doing so may cause chemical burns.
● A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.
● Keep away new and removed batteries from children.
● If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact your
Toyota dealer.
● If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.
■ To prevent battery explosion or leakage of flammable liquid or gas
● Replace the battery with a new battery of the same type. If a w rong type of
battery is used, it may explode.
● Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
● Do not burn, break or cut a battery.
4
21
5
Page 507 of 584
5077-2. Steps to take in an emergency
7
When trouble arises
■Doors
Using the mechanical key (P.
139) in order to perform the fol-
lowing operations (driver’s door
only):
Locks all doors
Closes the windows and the
moon roof
*1 (turn and
hold)
*2
Unlocks the door
Turning the key rearward unlocks the driver's door. Turning the key once
again unlocks the other doors.
Opens the windows and the moon roof*1 (turn and hold)*2
*1: If equipped
*2: This setting must be customized at your Toyota dealer.
If the electronic key does not operate
properly
If communication between the electronic key and vehicle is
interrupted (P. 155) or the electronic key cannot be used
because the battery is depleted, the smart key system and wire-
less remote control cannot be used. In such cases, the doors
and trunk can be opened and the hybrid system can be started
by following the procedure below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
2
3
4
Page 513 of 584

5137-2. Steps to take in an emergency
7
When trouble arises
■Starting the hybrid system when the 12-volt battery is discharg ed
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid s ystem is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic .
■ When the 12-volt battery is removed or discharged
● Information stored in the ECU is cleared. When the 12-volt batt ery is
depleted, have the vehicle inspected at your Toyota dealer.
● Some systems may require initialization. ( P. 557)
■ When removing the 12-vo lt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact your
Toyota dealer.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gr adually even when
the vehicle is not in use, due to natural discharge and the dra ining effects of
certain electrical appliances. If the vehicle is left for a lon g time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
■ When recharging or replacing the 12-volt battery
●In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wire less remote
control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The power switch mode is memorized by the vehicle. When the 12- volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12 -volt battery.
Page 551 of 584
5518-2. Customization
8
Vehicle specifications
■Smart key system and wireless remote control
( P. 142, 148, 152)
■Smart key system ( P. 142, 148, 152)
FunctionDefault settingCustomized setting
Operating signal
(Buzzers)5Off to 7OO
Operation signal
(Emergency flashers) On Off O O
Time elapsed before
automatic door lock
function is activated if
door is not opened after
being unlocked 60 seconds
Off
OO
30 seconds
120 seconds
Open door warning
buzzerOnOff —O
12
FunctionDefault settingCustomized setting
Smart key systemOnOff—O
Time elapsed before
unlocking all the door
when gripping and hold-
ing the driver’s door han-
dle
2 secondsOff—O
Number of consecutive
door lock operations 2 times As many as desired — O
12
Page 552 of 584
5528-2. Customization
■Wireless remote control (P. 138, 142, 148)
■Power windows and moon roof* ( P. 177, 181)
*: If equipped
FunctionDefault settingCustomized setting
Wireless remote controlOnOff—O
Unlocking operation
Driver’s door
unlocked in one
step, all doors
unlocked in two steps
All doors unlocked in one stepOO
Trunk unlocking opera-
tionPress and hold (short)
One short press
—OPush twice
Press and hold (long)
Off
Panic functionOnOff—O
Reservation lockOnOffOO
12
FunctionDefault settingCustomized setting
Mechanical key linked
operationOffOn—O
Wireless remote control
linked operationOffOn (open only)—O
Wireless remote control
linked operation signal
(buzzer)
OnOff—O
12
Page 553 of 584
5538-2. Customization
8
Vehicle specifications
■Moon roof* ( P. 181)
*: If equipped
■
Driving position memory* ( P. 163)
*: If equipped
■
Automatic light control system ( P. 222)
FunctionDefault settingCustomized setting
Linked operation of com-
ponents when mechani-
cal key is used (open
only)
Slide onlyTilt only—O
Linked operation of com-
ponents when wireless
remote control is used
Slide onlyTilt only—O
12
FunctionDefault settingCustomized setting
Selecting doors linked to
the memory recall func-
tion
Driver’s doorAll doors—O
Driver’s seat movement
when exiting the vehicleStandardOffOOPartial
Steering wheel move-
ment Tilt onlyTelescopic only
OO
Tilt & telescopic
Off
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
OO60 seconds
90 seconds
12
Page 569 of 584

569Alphabetical index
Daytime running light system .................................... 223
Defogger Outside rear view mirrors...... 365
Rear window ......................... 365
Windshield ............................ 365
Dimensions .............................. 524
Dinghy towing .......................... 199
Display Dynamic radar cruise control
with full-speed range .......... 281
LTA (Lane Tracing Assist) .... 270
Multi-information display ....... 102
Warning messages ............... 488
Do-it-yourself maintenance .... 421
Door courtesy lights Location ................................ 374
Wattage ................................ 531
Door lock
Doors .................................... 142
Smart key system ................. 142
Wireless remote control ........ 142
Doors ........................................ 142 Automatic door locking and unlocking systems ....... 145
Door lock............................... 144
Outside rear view mirrors...... 174
Rear door child-protector ...... 145
Side doors............................. 142
Side windows ........................ 177 Drive-Start Control .................. 187
Sudden start restraint control ................................ 187
Driver’s seat belt reminder light ........................ 481
Driver’s seat position memory .................................. 163
Driving Break-in tips.......................... 188
Correct posture ....................... 26
Driving mode select switches ............................. 342
Hybrid vehicle driving tips ..... 351
Procedures ........................... 186
Winter drive tips .................... 354
Driving information ................. 106
Driving position memory ........ 163
Memory recall function ......... 166
Power easy access system .......... ...................... 163
DSC (Drive-Start Control) ....... 187 Sudden start restraint
control ................................ 187
Dynamic radar cruise control with full-speed range ............ 281
D
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.