check engine TOYOTA PRIUS 2009 2.G User Guide

366 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
CAUTION
■Used engine oil
● Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation or skin cancer, so care should
be taken to avoid prolonged and repeated contact. To remove used engine
oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call your Toyota dealer, service station or auto parts store for information
concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on regular basis.
■ When replacing the engine oil
● Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly retightened.

368 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap,
drain cock and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.
■ Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Enabled: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 F [-42C])
For more details about engine coolant, contact your Toyota dealer.
CAUTION
■ When the coolant is hot
Do not remove the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing burns or other injuries.
NOTICE
■When adding the coolant
Coolant is neither plain water not straight antifreeze. The correct mixture of
water and anti freeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it damage to parts or paint.

369
4-3. Do-it-yourself maintenance
4
Maintenance and care
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Radiator and condenser
Check the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of
their condition, have your vehicl e checked by your Toyota dealer.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
■ Adding fluid
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be
burned.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel

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4-3. Do-it-yourself maintenance
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Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch to OFF mode.
Remove the engine compartment cover if necessary.
P. 361
Open the fuse box cover.
Engine compartment
Push the tabs in and lift the lid
off.
Driver’s side instrument panel Remove the lid.STEP1
STEP2
STEP3

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4-3. Do-it-yourself maintenance
4
Maintenance and care
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Light bulbs
You may replace the following bulbs yourself. For more information
about replacing other light bulbs, contact your Toyota dealer.
■Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. ( P. 469)
■ Remove the engine compartment cover if necessary.
 P. 3 6 1
■ Front bulb locations
■ Rear bulb locations
ITY43P038
Parking and front
side marker lights
Headlight
Front turn signal light
ITY43P039
Rear turn signal light
Back-up light Licence plate lights
Tail and rear side
marker lights

5
When trouble arises
427
5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
*1: This warning light is di
splayed on the touch screen.
*2: Open door warning buzzer:

(U.S.A.)
Engine oil replacement
reminder light
Illuminates for about 3 sec-
onds and then flasher for
about 15 seconds:
Engine oil is scheduled to
be changed. Check and the engine oil,
and change if necessary.
Comes on and remains:
Engine oil should be
changed. Check and change the
engine oil.

*1
Hybrid battery warning
light
The hybrid battery voltage
drops when the transmis-
sion is left in “N” position. Push the “P” position
switch.
The hybrid battery is dis-
charged. If this light comes on with
the “READY” light on in this
case, have the system
checked by your Toyota
dealer.

*1
High coolant temperature
warning light Indicates high engine cool-
ant temperature P. 454
Master warning light A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning system
has detected a malfunc-
tion. Take appropriate action in
accordance with the mes-
sage displayed on the touch
screen.
Warning lightWarning light/DetailsCorrection procedure

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

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5-2. Steps to take in an emergency
PRIUS_U_(OM47614U)
If your vehicle overheats
Correction proceduresStop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam: Leave the hybrid system operating and carefully lift the
hood.
Remove the engine compartment cover. ( P. 361)
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the engine coolant temperature gauge begins to
fall and then stop the hybrid system.
If the fan is not operating: Stop the hybrid system immediately and call your local Toy-
ota dealer.
The following may indicate that your vehicle is overheating:
The high engine coolant temperature warning light comes on:
The hybrid system may be overheating.
Follow the correction procedure as described blow.
STEP1
STEP2
STEP3
STEP4

500 Alphabetical index
PRIUS_U_(OM47614U)
Engine compartment cover..... 361
Engine/inverter coolantCapacity ................................465
Checking ............................... 367
Preparing and checking before winter ....................... 173
Engine oil Capacity ................................464
Checking ............................... 361
Preparing and checking before winter ....................... 173
Engine oil maintenance
data ......................................... 365
Enhanced VSC (Vehicle Stability Control).................... 166
Event data recorder .................421
Floor mats.................................332
Fluid Brake .....................................369
Washer .................................. 374
Fog lights Switch.................................... 155
Wattage .................................469
Front passenger occupant classification system ............101
Front passenger’s seat belt
reminder light.........................426
Front seats Adjustment .............................. 57
Front turn signal lights Wattage .................................469
Fuel
Capacity ................................462
Fuel gauge ............................ 145
Gas station information .........508
Information ............................ 470
Refueling ................................. 79
Type ......................................470
Fuel door.....................................79
Fuel filler door ............................ 79
Fuses......................................... 394 Garage door opener ................ 336
Gas station information .......... 508
Gauges...................................... 145
Glove box ................................. 320
Hands-free system
(for cellular phone) ................ 269
Hazard lights
Switch ................................... 412
Head restraints........................... 62
Headlights Discharge headlights precautions ......................... 410
Replacing light bulbs ............. 403
Switch ................................... 152
Wattage................................. 469
Heaters
Side mirror ............................ 213
Hood.......................................... 357
Hooks Cargo .................................... 333
Horn .......................................... 144
Hybrid system Emergency shut off system..... 27
Energy monitor /
consumption screen ............. 27
High-voltage components ....... 26
Power switch ......................... 132
Illuminated entry system......... 315
Immobilizer system ................... 82
I/M test ...................................... 352
Identification Engine ................................... 461
Vehicle .................................. 461
Ignition switch.......................... 132
Indicator lights ......................... 148
Initialization Items to initialize ................... 489
Inside rear view mirror .............. 72
Instrument panel light control .................................... 146
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