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338 4-3. Do-it-yourself maintenance
■Rear turn signal lights
Open the trunk lid and remove
the cover.
Turn the bulb bases counter-
clockwise.
Remove the light bulb.
STEP1
STEP2
STEP3
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340 4-3. Do-it-yourself maintenance
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.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.
Page 359 of 444
5
When trouble arises
359
5-2. Steps to take in an emergency
●
The following warning indicates the possibility of damage to the
vehicle that may lead to an accide nt. Immediately stop the vehicle
in a safe place and allow the power control unit and electric motor
(traction motor) to cool.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning messageDetails
Indicates that the temp
erature for the power
control unit coolant or electric motor (traction
motor) is too high. A buzzer also sounds.
Warning messageDetails
Indicates a malfunction in the steering lock sys-
tem.
A buzzer also sounds.
Indicates a malfunction in the TRAC and VSC
systems.
A buzzer also sounds.
Page 367 of 444
5
When trouble arises
367
5-2. Steps to take in an emergency
Once⎯
Indicates that a
door has been
opened or
closed and the
“POWER”
switch has been
turned twice to
ACCESSORY
mode the
“POWER”
switch OFF.Press the
“POWER”
switch while
depressing the
brake pedal.
Once⎯
Indicates that
the steering
lock has not
released within
3 seconds of
pressing the
“POWER”
switch. Press the
“POWER”
switch again
while turning
the steering
wheel with the
brake pedal
depressed.
Interior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure
Page 378 of 444

378
5-2. Steps to take in an emergency
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the
situation. Check the following a nd perform the appropriate proce-
dure:
■ The hybrid system will not start, even though the correct
starting procedure is being followed. ( →P. 131)
One of the following may be the cause of the problem.
● The electronic key may not be functioning properly. ( →P. 382)
● There may be a malfunction in the immobilizer system.
(→ P. 8 3 )
● There may be a malfunction in the steering lock system.
● The hybrid system may be malfun ctioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malf unction, an interim measure is
available to start the hybrid system. ( →P. 379)
■ The interior lights and headlight s 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 12-volt battery may be discharged. ( →P. 385)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.
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5
When trouble arises
379
5-2. Steps to take in an emergency
Emergency start function
When the hybrid system does not
start, the following steps can be
used as an interim measure to start the hybrid system if the
“POWER” switch is functioning normally.
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the hybrid sy stem can be started usi ng the above steps, the
system may be malfunctioning. Ha ve the vehicle checked by your
Toyota dealer.
■ 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 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( →P. 385)
● There may be a malfunction in the steering lock system.
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4
Page 380 of 444
380
5-2. Steps to take in an emergency
If the shift lever cannot be shifted from P
If the shift lever cannot be shifted with your foot on the brake, there
may be a problem with the shift lock system (a system to prevent
accidental operation of the shift l ever). Have the vehicle inspected by
your Toyota dealer.
The following steps may be used as an emergency measure to
ensure that the shift lever can be shifted.
Set the parking brake.
Turn the “POWER” switch to ACCESSORY mode.
Depress the brake pedal.
Pry the cover up with a flat-
head screwdriver or equiva-
lent.
Press the “POWER” switch and start the hybrid system. For
your safety, keep the brake pedal depressed. Press the shift lock override
button.
The shift lever can be shifted
while the button is pressed.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
Page 382 of 444
382
5-2. Steps to take in an emergency
If the electronic key does not operate properly
Locking and unlocking the doors and opening the trunk with the mechanical key
Doors
Locks all doors
Unlocks all doors
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
If communication between the elect ronic key and the vehicle is inter-
rupted ( →P. 40) or the electronic key cannot be used because the
battery is depleted, the smart key system and wireless remote con-
trol cannot be used. In such cases, the doors and trunk can be
opened or the hybrid system can be started by following the proce-
dure below.