TOYOTA PRIUS PHV 2012 Owners Manual

521
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
4
Maintenance and care
CAUTION
■
Replacing light bulbs
● Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights.
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. Failure 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.

522 4-3. Do-it-yourself maintenance
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When trouble arises5
523
PRIUS PHV_OM_OM47818U_(U)
5-1. Essential informationEmergency flashers ......... 524
If your vehicle needs to be towed ........................ 525
If you think something is wrong ......................... 532
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 533
If a warning message is displayed .................... 546
If you have a flat tire......... 566
If the hybrid system will not start .......................... 588
If you lose your keys ........ 590
If the electronic key does not operate properly....... 591
If the 12-volt battery is discharged ..................... 594
If your vehicle overheats ....................... 600
If the vehicle becomes stuck .............................. 605
If your vehicle has to be stopped in an
emergency ..................... 607

524
PRIUS PHV_OM_OM47818U_(U)
5-1. Essential information
Emergency flashers
■Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indi cator is not illuminated), the 12-volt
battery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Press the switch.
All the turn signal lights will
flash.
To turn them off, press the
switch once again.

5
When trouble arises
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5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer before towing.
● The hybrid system is operating but the vehicle will not move.
● The vehicle makes an abnormal sound.
If there is a malfunction in the P position control system, the smart
key system or the immobilizer system , or if the 12-volt battery is dis-
charged, the vehicle cannot be tow ed with the front wheels on the
ground, as the front wheels may be locked. In this case, transport the
vehicle with both front wheels or all four wheels lifted.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commerci al towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.

526 5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
Emergency towingIf a tow truck is not available in
an emergency, your vehicle may
be temporarily towed using a
cable or chain secured to the
emergency towing eyelet(s).
This should only be attempted
on hard surfaced roads for short
distances at under 18 mph
(30 km/h).
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.

5
When trouble arises
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5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
Installing towing eyelets
Remove the eyelet cover using a
flathead screwdriver.
To prevent damage, cover the tip
of the screwdriver with a rag.
Insert the towing eyelet into the
hole and tighten partially by
hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.
STEP 1
STEP 2
STEP 3

528 5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
Towing with a sling-type truckDo not tow with a sling-type truck
to prevent body damage.
Towing with a wheel-lift type truckFrom the front Release the parking brake.
From the rear Use a towing dolly under the
front wheels.

5
When trouble arises
529
5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
Using a flat bed truck
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.
■ Before emergency towing
Turn the “POWER” switch to ON mode.
Do not turn the “POWER” switch to ACCESSORY mode.
Shift the shift position to N.
Release the parking brake.
■ Emergency towing eyelet location
 P. 448
STEP 1
STEP 2
STEP 3

530 5-1. Essential information
PRIUS PHV_OM_OM47818U_(U)
CAUTION
■Caution while towing
● Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
● Do not turn the “POWER” switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.
● If the hybrid system is off, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■ Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing. This
may lead to accidents that cause serious injury or even death.