2009 TOYOTA PRIUS lights

410 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
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.
■ High-intensity discharge (HID) headlights
● 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 death or serious injury by electric
shock.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

412
PRIUS_U_(OM47614U)
5-1. Essential information
Emergency flashers
NOTICE
■To prevent 12 volt battery discharge
Do not leave the emergency flashers on longer than necessary when the
hybrid system is not operating.
Use the emergency flashers if th e vehicle malfunctions or is
involved in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, push the switch once
again.

5
When trouble arises
423
PRIUS_U_(OM47614U)
5-2. Steps to take in an emergency
If a war ning light turns on or a war ning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*:Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details

(U.S.A.)

(Canada)
Brake system warning ligh t and warning buzzer* (red
indictor)
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

430 5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
■If the malfunction indicator lamp comes on while driving
First check the following:
● Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Power steering warning light
When the voltage is low or drops, the power steering warning light may
come on.
■ SRS warning light
This warning light system monitors the following:
● The airbag sensor assembly
● Front airbag sensors
● The curtain shield airbag sensors
● The side and curtain shield airbag sensor assemblies
● The driver’s seat position sensor
● Driver’s seat belt buckle switch
● The front passenger occupant classification ECU
● The pressure sensor
● The belt tension sensor
● “AIR BAG ON” and “AIR BA G OFF” indicator lights
● Front passenger’s seat belt buckle switch
● The inflators
● The warning light
● The interconnecting wiring and power sources

446
5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
If the hybrid system will not start
If the hybrid system will not start even though correct starting proce-
dures are being followed (
P. 132), consider each of the following
points.
■ The hybrid system will not start even when the starter motor
operates normally.
One of the following may be the cause of the problem.
●The electronic key battery may be discharged. ( P. 448)
● The hybrid system may be flooded.
Try to restart the hybrid system once more following correct
starting procedures. (P. 132)
● There may be a malfunction in the immobilizer system.
( P. 8 2 )
■ 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. 449)
● The 12 volt battery terminal c onnections may be loose or cor-
roded.
■ 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 battery terminals may be discon-
nected.
● The 12 volt battery may be discharged. ( P. 449)
Contact your Toyota dealer if the problem cannot be repaired,
or if repair procedures are unknown.

5
When trouble arises
451
5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
■
Starting the hybrid system when the battery is discharged
The hybrid system cannot be started by push-starting.
■ Avoiding a discharged 12 volt battery
● Turn off the headlights and the audio system while the hybrid system is
turned off.
● Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic, etc.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately
five minutes to recharge the 12 volt battery of your vehicle.
Open and close any of the doors with the “POWER” switch
OFF.
Maintain the engine speed on the second vehicle and turn
the “POWER” switch to the ON mode, then start the vehi-
cle’s hybrid system.
Make sure the “READY” light comes on. If the “READY”
light will not come on and the hybrid system will not start
after you recharge the battery, do the following procedure.
Turn the hybrid system off. Open and close the driver’s
door. Then push the “POWER” switch briefly and firmly. If
the light does not come on, contact your Toyota dealer.
Once the vehicle’s hybrid syst em has started, remove the
jumper cables in the exact reverse order in which they were
connected.
Once the hybrid system starts, have the vehicle checked at your
Toyota dealer as soon as possible.STEP4
STEP5
STEP6
STEP7
STEP8

466 6-1. Specifications
PRIUS_U_(OM47614U)
Electrical system
Transmission
12 volt battery
Open voltage at
68F (20 C): 12.6 
12.8 V Fully charged
12.2  12.4 V Half charged
11 . 5  11.9 V Discharged
(Voltage is checked 20 minutes after
the hybrid system and all lights are
turned off.)
Charging rates 3.5 A max.
Fluid capacity
Drain and refill3.8 qt. (3.6 L, 3.2 lmp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by
vibration, and ultimately damage the transmission of your vehicle.

469
6-1. Specifications
6
Vehicle specifications
PRIUS_U_(OM47614U)
Light bulbs
A: D4R discharge bulbs
B: HB2 halogen bulbs
C: HB4 halogen bulbs
D: Wedge base bulbs
E: Double end bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights
Discharge bulbs
Halogen bulbs 
35
60/55 A
B
Front fog lights 9006 51 C
Parking/front side marker
lights 
5D
Front turn signal lights 21 D
Rear turn signal lights 21 D
Back-up lights 7440 21 D
Tail lights/rear side marker
lights 
5D
License plate lights 5D
InteriorInterior lights
8E
Personal lights 5D
Door courtesy lights 5D
Vanity lights 5E
Luggage compartment light 5E