Login- Download PDF Manual
-
Fluid leaks
Tires
Windshield wipers/rear window (if equipped)
wiper
WARNING
■If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation before performing maintenance checks.
PRIUS c_U (OM52E68U)
378
7-2. Maintenance
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system.
If the malfunction indicator lamp comes on The OBD system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the I/M test and may need to be repaired. Contact your Toyota dealer to service the vehicle.
Your vehicle may not pass the I/M test in the following situations: ● When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased. Also, depending on your driving habits, the readiness codes may not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary malfunction and your vehicle may not pass the I/M test.
When the malfunction indicator lamp still remains on after sev- eral driving trips The error code in the OBD system will not be cleared unless the vehi- cle is driven 40 or more times.
If your vehicle does not pass the I/M test Contact your Toyota dealer to prepare the vehicle for re-testing.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
379
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections.
Items
Check points
12-volt battery condition (P. 394)
• Grease • Conventional wrench
(for terminal clamp bolts)
Brake fluid level
(P. 391)
Engine/power unit coolant level
control
(P. 389)
Engine oil level
(P. 386)
Fuses
(P. 416)
Light bulbs
(P. 420)
fluid
• FMVSS No.116 DOT 3 or SAE J1703 brake
• Rag or paper towel • Funnel (used only for adding brake fluid) • “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol based non-sili- cate, non-amine, non-nitrite and non-borate coolant with long-life hybrid organic acid tech- nology For the U.S.A.: “Toyota Super Long Life Coolant” is pre-mixed with 50% coolant and 50% deionized water. For Canada: “Toyota Super Long Life Coolant” is pre-mixed with 55% coolant and 45% deionized water.
• Funnel (used only for adding coolant) • “Toyota Genuine Motor Oil” or equivalent • Rag or paper towel • Funnel (used only for adding engine oil) • Fuse with same amperage rating as original • Bulb with same number and wattage rating as
original
• Phillips-head screwdriver • Flathead screwdriver • Wrench
Radiator and condenser (P. 391) Tire inflation pressure (P. 406)
• Tire pressure gauge • Compressed air source
PRIUS c_U (OM52E68U)
380
7-3. Do-it-yourself maintenance
Items
Check points
• Water or washer fluid containing antifreeze
• Funnel (used only for adding water or washer
(for winter use)
fluid)
Washer fluid (P. 393)
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To avoid death or serious injury, observe the following precautions:
■When working on the engine compartment
●Vehicles without a smart key system: Make sure that the engine switch is
in the “LOCK” position and the “READY” indicator is off. Vehicles with a smart key system: Make sure that the indicator on the “POWER” switch and the “READY” indicator are both off.
●Keep hands, clothing and tools away from the moving fan and engine
drive belt.
●Be careful not to touch the engine, power control unit, radiator, exhaust manifold, etc. right after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■When working near the electric cooling fan or radiator grille
Vehicles without a smart key system: The electric cooling fan may keep rotating for about 3 minutes even after the engine switch is turned to the “LOCK” position. With the engine switch in the “ON” position, the electric cooling fan may automatically start to run if the air conditioning is on and/or the coolant tem- perature is high. Be sure the engine switch is in the “LOCK” position when working near the electric cooling fan or radiator grille. Vehicles with a smart key system: The electric cooling fan may keep rotat- ing for about 3 minutes even after the “POWER” switch is off. With the “POWER” switch in ON mode, the electric cooling fan may auto- matically start to run if the air conditioning is on and/or the coolant tempera- ture is high. Be sure the “POWER” switch is off when working near the electric cooling fan or radiator grille.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
381
WARNING
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.
PRIUS c_U (OM52E68U)
382
7-3. Do-it-yourself maintenance
Hood
Release the lock from the inside of the vehicle to open the hood.
Pull the hood lock release lever. The hood will pop up slightly.
Pull up the auxiliary catch lever and lift the hood.
Hold the hood open by inserting the supporting rod into the slot.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
383
WARNING
■Pre-driving check
Check that the hood is fully closed and locked. If the hood is not locked properly, it may open while the vehicle is in motion and cause an accident, which may result in death or serious injury.
■After installing the support rod into the slot
Make sure the rod supports the hood securely from falling down on to your head or body.
NOTICE
■When closing the hood
Be sure to return the support rod to its clip before closing the hood. Closing the hood with the support rod up could cause the hood to bend.
PRIUS c_U (OM52E68U)
384
7-3. Do-it-yourself maintenance
Positioning a floor jack
When using a floor jack, follow the instructions in the manual provided with the jack and perform the operation safely. When raising your vehicle with a floor jack, position the jack cor- rectly. Improper placement may damage your vehicle or cause injury.
◆ Front
◆ Rear
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
385
Engine compartment
unit (P. 389)
10
control
Engine/power coolant radiator Electric cooling fan Condenser Engine oil level dipstick
(P. 391)
(P. 386) (P. 393)
11
Washer fluid tank
Fuse boxes Engine oil filler cap
(P. 416)
(P. 387)
Engine coolant radiator cap Power control unit coolant reservoir Brake fluid reservoir
(P. 389)
(P. 391)
Engine coolant reservoir
(P. 389)
PRIUS c_U (OM52E68U)
386
7-3. Do-it-yourself maintenance
Engine oil With the engine at operating temperature and turned off, check the oil level on the dipstick. ■ Checking the engine oil
Park the vehicle on level ground. After warming up the engine and turning off the hybrid system, wait more than 5 minutes for the oil to drain back into the bottom of the engine. Holding a rag under the end, pull the dipstick out.
Wipe the dipstick clean. Reinsert the dipstick fully. Holding a rag under the end, pull the dipstick out and check the oil level.
Low Normal Excessive
The shape of the dipstick may differ depending on the type of vehicle or engine.
Wipe the dipstick and reinsert it fully.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
387
■ Adding engine oil
If the oil level is below or near the low level mark, add engine oil of the same type as that already in the engine.
Make sure to check the oil type and prepare the items needed before adding oil. Engine oil selection Oil quantity (Low Full) Item
1.6 qt. (1.5 L, 1.3 Imp. qt.)
Clean funnel
P. 493
Remove the oil filler cap by turning it counterclockwise. Add engine oil slowly, checking the dipstick. Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals. ●When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
●If low quality oil or oil of an inappropriate viscosity is used ●When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
PRIUS c_U (OM52E68U)
388
7-3. Do-it-yourself maintenance
WARNING
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and 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 a 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 tightened.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
389
Coolant Engine coolant reservoir The coolant level is satisfactory if it is between the “FULL” and “LOW” lines on the reservoir when the engine is cold.
Reservoir cap “FULL” line “LOW” line If the level is on or below the “LOW” line, add coolant up to the “FULL” line. (P. 483)
Power control unit coolant reservoir The coolant level is satisfactory if it is between the “F” and “L” lines on the reservoir when the hybrid system is cold.
Reservoir cap “F” line “L” line If the level is on or below the “L” line, add coolant up to the “F” line. (P. 483)
PRIUS c_U (OM52E68U)
390
7-3. Do-it-yourself maintenance
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a 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. (Minimum temperature: -31F [-35C]) Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44F [-42C])
For more details about coolant, contact your Toyota dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiators, hoses, engine/power control unit coolant reser- voir caps, drain cock and water pump. If you cannot find a leak, have your Toyota dealer test the cap and check for leaks in the cooling systems.
WARNING
■When the hybrid system is hot
Do not remove the engine coolant radiator cap and power control unit cool- ant reservoir cap. The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze 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 from damaging parts or paint.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
391
Radiator and condenser Check the radiator and condenser and clear away any foreign objects. If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Toyota dealer.
WARNING
■When the hybrid system is hot
Do not touch the radiators or condenser as they may be hot and cause seri- ous injuries, such as burns.
Brake fluid ■ Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lines on the tank.
■ Adding fluid
Make sure to check the fluid type and prepare the necessary item. Fluid type Item
FMVSS No.116 DOT 3 or SAE J1703 brake fluid Clean funnel Slide and lift up the rubber strip and clips to partly remove it as shown.
PRIUS c_U (OM52E68U)
392
7-3. Do-it-yourself maintenance
Disconnect the claws and remove the service cover.
Remove the reservoir cap.
Add brake fluid slowly while checking the fluid level.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking effi- ciency. Use only newly opened brake fluid.
WARNING
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted surfaces. If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately. If you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or when the fluid level in the accumulator is high. If the reservoir needs frequent refilling, there may be a serious problem.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
393
Washer fluid If the amount of washer fluid is insufficient, add washer fluid.
WARNING
■When adding washer fluid
Add washer fluid after the hybrid system has been stopped and cooled down sufficiently. Washer fluid contains alcohol and may catch fire if spilled inside a hot engine compartment.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid. Doing so may cause streaking on the vehicle's painted surfaces.
■Diluting washer fluid
Dilute washer fluid with water as necessary. Refer to the freezing temperatures listed on the label of the washer fluid bot- tle.
PRIUS c_U (OM52E68U)
394
7-3. Do-it-yourself maintenance
12-volt battery
■ Location
The 12-volt battery is located under the rear right seat.
■ Removing the 12-volt battery cover
Remove the 2 clips
Push in the center part of the clips Remove the clips
Disengage the 3 clips and 3
guides on the back of the cover and remove the 12-volt battery cover.Guides Clips
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
395
■ Exterior
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
■ Installing the 12-volt battery cover
Install cover.
the 12-volt battery
Guides Clips Check if the clips and guides on the back of the cover are engaging properly if the cover cannot be installed.
Install the 2 clips.
Push out the center part of the clips Insert the clips Push in the center part of the clips
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam- mable and explosive. Therefore, observe the following precautions 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 connecting and dis-
connecting the charger cables to the 12-volt battery.
PRIUS c_U (OM52E68U)
396
7-3. Do-it-yourself maintenance
■When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first.
■After recharging/reconnecting the 12-volt battery (vehicles with a smart
key system) ●Unlocking the doors using the smart key system may not be possible 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 doors.
●Start the hybrid system with the “POWER” switch in ACCESSORY mode. The hybrid system may not start with the “POWER” switch turned off. How- ever, the hybrid system will operate normally from the second attempt.
●The “POWER” switch mode is recorded by the vehicle. If the 12-volt battery is reconnected, the vehicle will return the “POWER” switch mode to the sta- tus it was in before the 12-volt battery was disconnected. Make sure to turn off the power before disconnect the 12-volt battery. Take extra care when connecting the 12-volt battery if the “POWER” switch mode prior to dis- charge is unknown.
If the system will not start even after multiple attempts, contact your Toyota dealer.
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take the following precautions while working on or near the 12-volt battery: ●Do not cause sparks by touching the 12-volt battery terminals with tools. ●Do not smoke or light a match near the 12-volt battery. ●Avoid contact with eyes, skin and clothes. ●Never inhale or swallow electrolyte. ●Wear protective safety glasses when working near the 12-volt battery. ●Keep children away from the 12-volt battery. ■Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12- volt battery in a garage or closed room where there is insufficient ventila- tion.
■When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first. If the positive (+) terminal is disconnected first and touches a surrounding metal surface it may cause sparks resulting in a fire or it may result in an electric shock, death or seri- ous injury.
■How to recharge the 12-volt battery
Only perform a slow charge (3.5 A or less). The 12-volt battery may explode if charged at a quicker rate.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
397
WARNING
■Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi- ate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.
●If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.
●If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth- ing and follow the procedure above if necessary.
●If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention immediately.
■When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause gas (hydrogen) to enter the passenger compartment, causing a fire or explosion. For replacement of the 12-volt battery, contact your Toyota dealer.
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating. Also, be sure all accessories are turned off.
PRIUS c_U (OM52E68U)
398
7-3. Do-it-yourself maintenance
Tires
Replace or rotate tires in accordance with maintenance sched- ules and treadwear.
Checking tires
New tread Treadwear indicator Worn tread The location of treadwear indica- tors is shown by the “TWI” or “” marks, etc., molded on the side- wall of each tire. Check spare tire condition and pressure if not rotated.
Tire rotation Rotate the shown.
tires
in
the order
To equalize tire wear and extend tire life, Toyota recommends that tire rotation is carried out at the same interval as tire inspection. Do not fail to initialize the tire pressure warning system after tire rotation.
Front
Tire pressure warning system Your vehicle is equipped with a tire pressure warning system that uses tire pressure warning valves and transmitters to detect low tire infla- tion pressure before serious problems arise. If the tire pressure drops below a predetermined level, the driver is warned by a warning light. (P. 444)
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
399
◆ Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warning computer and the tire pressure warning system must be initialized. Have tire pressure warning valve and transmitter ID codes registered by your Toyota dealer. (P. 400)
◆ Initializing the tire pressure warning system ■ The tire pressure warning system must be initialized in the fol-
lowing circumstances: ● When rotating front and rear tires which have different tire infla-
tion pressures
● When changing the tire size When the tire pressure warning system is initialized, the current tire inflation pressure is set as the benchmark pressure. ■ How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the engine switch (vehi- cles without a smart key system) or the “POWER” switch (vehi- cles with a smart key system) off. Initialization cannot be performed while the vehicle is moving. Adjust the tire inflation pressure to the specified cold tire inflation pressure level. (P. 497) Make sure to adjust the tire pressure to the specified cold tire infla- tion pressure level. The tire pressure warning system will operate based on this pressure level. Turn the engine switch to the “ON” position (vehicles without a smart key system) or “POWER” switch to ON mode (vehicles with a smart key system). Press and hold the tire pres- sure warning reset switch until the tire pressure warn- ing light blinks slowly 3 times.
PRIUS c_U (OM52E68U)
400
7-3. Do-it-yourself maintenance
Vehicles without a smart key system: Wait for a few minutes with the engine switch in the “ON” position and then turn the engine switch to the “ACC” or “LOCK” position. Vehicles with a smart key system: Wait for a few minutes with the “POWER” switch in ON mode and then turn the “POWER” switch off.
◆ Registering ID codes
The tire pressure warning valve and transmitter is equipped with a unique ID code. When replacing a tire pressure warning valve and transmitter, it is necessary to register the ID code. Have the ID code registered by your Toyota dealer.
■When to replace your vehicle's tires
Tires should be replaced if: ●You have tire damage such as cuts, splits, cracks deep enough to
expose the fabric, and bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size
or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not reg- istered, the tire pressure warning system will not work properly. After driv- ing for about 20 minutes, the tire pressure warning light blinks for 1
minute and stays on to indicate a system malfunction.■Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure checks. Make sure to check tire inflation pressure as part of your routine of daily vehicle checks.
■Low profile tires (vehicles with P195/50R16 tires)
Generally, low profile tires will wear more rapidly and tire grip perfor- mance will be reduced on snowy and/or icy roads when compared to standard tires. Be sure to use snow tires or tire chains on snowy and/or icy roads and drive carefully at a speed appropriate for road and weather conditions.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
401
■Maximum load of tire
Check that the maximum load of the replacement tire is greater than 1/2
of the Gross Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is greater. For the GAWR, see the Certification Label. For the maximum load of the tire, see the load limit at maximum cold tire inflation pressure mentioned on the sidewall of the tire. (P. 502)■Tire types
●Summer tires
Summer tires are high-speed performance tires best suited to highway driving under dry conditions. Since summer tires do not have the same traction performance as snow tires, summer tires are inadequate for driving on snow-covered or icy roads. For driving on snow-covered roads or icy roads, the use of snow tires is recommended. When install- ing snow tires, be sure to replace all four tires.
●All season tires
All season tires are designed to provide better traction in snow and to be adequate for driving in most winter conditions as well as for use year-round. All season tires, however, do not have adequate traction performance compared with snow tires in heavy or loose snow. Also, all season tires fall short in acceleration and handling performance com- pared with summer tires in highway driving.
●Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If you need snow tires, select tires of the same size, con- struction and load capacity as the originally installed tires. Since your vehicle has radial tires as original equipment, make sure your snow tires also have radial construction. Do not install studded tires without first checking local regulations for possible restrictions. Snow tires should be installed on all wheels. (P. 241)
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
PRIUS c_U (OM52E68U)
402
7-3. Do-it-yourself maintenance
■If the tire pressure warning system is not functioning
The tire pressure warning system will be disabled in the following condi- tions: (When the condition becomes normal, the system will work properly.) ●If tires not equipped with tire pressure warning valves and transmitters
are used
●If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher
The tire pressure warning system may be disabled in the following condi- tions: (When the condition becomes normal, the system will work properly.) ●If electronic devices or facilities using similar radio wave frequencies are
nearby
●If a radio set at a similar frequency is in use in the vehicle ●If a window tint that affects the radio wave signals is installed ●If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings
●If non-genuine Toyota wheels are used (Even if you use Toyota wheels, the tire pressure warning system may not work properly with some types of tires.)
●If tire chains are used
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pres-
sure. Also, make sure the tires are cold before carrying out initialization or tire inflation pressure adjustment.
●If you have accidentally turned the power switch to off during initializa- tion, it is not necessary to press the reset switch again as initialization will restart automatically when the power switch has been turned to the ON mode for the next time.
●If you accidentally press the reset switch when initialization is not neces- sary, adjust the tire inflation pressure to the specified level when the tires are cold, and conduct initialization again.
■When the initialization of the tire pressure warning system has failed Initialization can be completed in a few minutes. However, in the following cases, the settings have not been recorded and the system will not oper- ate properly. If repeated attempts to record tire inflation pressure settings are unsuccessful, have the vehicle inspected by your Toyota dealer. ●When operating the tire pressure warning reset switch, the tire pressure
warning light does not blink 3 times.
●After driving for a certain period of time since the initialization has been
completed, the warning light comes on after blinking for 1 minute.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
403
■Tire pressure warning system certification
U.S.A. FCC ID: PAXPMVC010
NOTE: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC WARNING: Changes or modifications not expressly approved by the party responsi- ble for compliance could void the user’s authority to operate the equip- ment. Canada NOTE: Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. NOTE: L’utilisation de ce dispositif est autorisée seulement aux deux conditions suivantes : (1) il ne doit pas produire de brouillage, et (2) l’utilisateur du dispositif doit être prêt à accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fonctionne- ment du dispositif.PRIUS c_U (OM52E68U)
404
7-3. Do-it-yourself maintenance
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so may cause damage to parts of the drive train as well as dangerous handling characteristics, which may lead to an accident resulting in death or serious injury. ●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota. ●Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires. ●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first adjusting the tire inflation pressure to the specified level. Otherwise, the tire pressure warning light may not come on even if the tire inflation pressure is low, or it may come on when the tire inflation pressure is actually normal.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
405
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves,
transmitters and tire valve caps ●When removing or fitting the wheels, tires or the tire pressure warning valves and transmitters, contact your Toyota dealer as the tire pres- sure warning valves and transmitters may be damaged if not handled correctly.
●When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmit-
ters When a tire is repaired with liquid sealants, the tire pressure warning valve and transmitter may not operate properly. If a liquid sealant is used, contact your Toyota dealer or other qualified service shop as soon as possible. Make sure to replace the tire pressure warning valve and transmitter when replacing the tire. (P. 399)
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or pot- holes. These conditions may cause losses in tire inflation pressure, reducing the cushioning ability of the tires. In addition, driving on rough roads may cause damage to the tires themselves, as well as the vehicle’s wheels and body.
■Low profile tires (vehicles with P195/50R16 tires)
Low profile tires may cause greater damage than usual to the tire wheel when sustaining impact from the road surface. Therefore, pay attention to the following: ●Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.
●Avoid potholes, uneven pavement, curbs and other road hazards. Fail-
ure to do so may lead to severe tire and wheel damage.
■If tire inflation pressure of each tire becomes low while driving Do not continue driving, or your tires and/or wheels may be ruined.
PRIUS c_U (OM52E68U)
406
7-3. Do-it-yourself maintenance
Tire inflation pressure
Tire inflation pressure The recommended cold tire infla- tion pressure and tire size are dis- played on the tire and loading information label. (P. 497)
Inspection and adjustment procedure
Tire valve Tire pressure gauge
Remove the tire valve cap. Press the tip of the tire pressure gauge onto the tire valve. Read the pressure using the gauge gradations. If the tire inflation pressure is not at the recommended level, adjust the pressure. If you add too much air, press the center of the valve to deflate.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
407
After completing the tire inflation pressure measurement and adjustment, apply soapy water to the valve and check for leakage. Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least once a month. Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following: ●Reduced fuel economy ●Reduced driving comfort and poor handling ●Reduced tire life due to wear ●Reduced safety ●Damage to the drive train If a tire needs frequent inflating, have it checked by your Toyota dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following: ●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure reading.
●Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its appear- ance.
●It is normal for the tire inflation pressure to be higher after driving as heat is generated in the tire. Do not reduce tire inflation pressure after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is balanced.
PRIUS c_U (OM52E68U)
408
7-3. Do-it-yourself maintenance
WARNING
■Proper inflation is critical to save tire performance
Keep your tires properly inflated. If the tires are not properly inflated, the following conditions may occur which could lead to an accident resulting in death or serious injury: ●Excessive wear ●Uneven wear ●Poor handling ●Possibility of blowouts resulting from overheated tires ●Air leaking from between tire and wheel ●Wheel deformation and/or tire damage ●Greater possibility of tire damage while driving (due to road hazards,
expansion joints, sharp edges in the road, etc.)
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on. If a valve cap is not installed, dirt or moisture may get into the valve and cause an air leak, resulting in decreased tire inflation pressure.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
409
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced. Otherwise, the tire may separate from the wheel or cause a loss of handling control.
Wheel selection When replacing wheels, care should be taken to ensure that they are equivalent to those removed in load capacity, diameter, rim width and inset*. Replacement wheels are available at your Toyota dealer. *: Conventionally referred to as “offset”. Toyota does not recommend using the following: ● Wheels of different sizes or types ● Used wheels ● Bent wheels that have been straightened
Aluminum wheel precautions (if equipped) ● Use only Toyota wheel nuts and wrenches designed for use with
your aluminum wheels.
● When rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
● Be careful not to damage the aluminum wheels when using tire
chains.
● Use only Toyota genuine balance weights or equivalent and use a
plastic or rubber hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmitters that allow the tire pressure warning system to provide advance warning in the event of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning valves and trans- mitters must be installed. (P. 399)
PRIUS c_U (OM52E68U)
410
7-3. Do-it-yourself maintenance
WARNING
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner's Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing so may result in an accident, causing death or seri- ous injury.
■When installing the wheel nuts
facing
tapered ends
●Be sure to install the wheel nuts with the inward. Installing the nuts with the tapered ends facing outward can cause the wheel to break and eventually cause the wheel to come off while driving, which could to an accident resulting in death or serious injury.
lead
Tapered portion
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened, leading to bolt or disc wheel damage. In addition, the oil or grease can cause the wheel nuts to loosen and the wheel may fall off, causing an accident and resulting in death or serious injury. Remove any oil or grease from the wheel bolts or wheel nuts.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warn- ing valves and transmitters, make sure to have tires serviced by your Toyota dealer or other qualified service shop. In addition, make sure to purchase your tire pressure warning valves and transmitters at your Toyota dealer.
●Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-genuine wheels.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
411
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air conditioning efficiency.
Replacement method
Vehicles without a smart key system: Turn the engine switch to the “LOCK” position. Vehicles with a smart key system: Turn the “POWER” switch off. Open the glove box. Slide off the damper.
Push in each side of the glove box to disconnect the upper claws.
Pull out the glove box and dis- connect the lower claws.
PRIUS c_U (OM52E68U)
412
7-3. Do-it-yourself maintenance
Remove the filter cover.
Remove the air conditioning fil- ter and replace it with a new one. The “UP” mark shown on the filter should be pointing up.
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance schedule. In dusty areas or areas with heavy traffic flow, more frequent clean- ing or early replacement may be required. (For scheduled maintenance infor- mation, please refer to the “Scheduled Maintenance Guide” or “Owner's Manual Supplement”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the air conditioning system Make sure that a filter is always installed. Using the air conditioning system without a filter may cause damage to the system.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
413
Wireless remote control/electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items: ● Flathead screwdriver ● Small flathead screwdriver ● Lithium battery CR2016 (vehicles without a smart key system), or
CR2032 (vehicles with a smart key system)
Replacing the battery (vehicles without a smart key system)
Remove the cover. To prevent damage to the key, cover the tip of the screwdriver with a rag. To prevent the buttons from being disassembled, face the button sur- face downward.
Remove the module.
Open the case cover using a coin protected with tape etc. and remove the depleted bat- tery using a small flathead screwdriver. Insert a new battery with the “+” terminal facing up.
PRIUS c_U (OM52E68U)
414
7-3. Do-it-yourself maintenance
Replacing the battery (vehicles with a smart key system)
Take out the mechanical key.
Remove the cover. To prevent damage to the key, cover the tip of the screwdriver with a rag.
the cover,
Remove the depleted battery using a small flathead screw- driver. When removing the electronic module may stick to the cover and the battery may not be visible. In this case, remove the electronic module to remove the battery. Insert a new battery with the “+” terminal facing up.
in order
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
415
■Use a CR2016 (vehicles without a smart key system) or CR2032 (vehicles
with a smart key system) 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 (if equipped) and wireless remote control will not
function properly.
●The operational range will be reduced.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away from children. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents: ●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control. ●Do not bend either of the battery terminals.
PRIUS c_U (OM52E68U)
416
7-3. Do-it-yourself maintenance
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 nec- essary.
Vehicles without a smart key system: Turn the engine switch off. Vehicles with a smart key system: Turn the “POWER” switch off.
Engine compartment
Push the tab in and lift the cover off. Type A fuse box
Type B fuse box
Under the instrument panel
Remove the cover.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
417
Remove the fuse with the pull- out tool. Only type A fuse can be removed using the pullout tool.
PRIUS c_U (OM52E68U)
418
7-3. Do-it-yourself maintenance
Check if the fuse is blown. Type A
Type B
Type C
Type D
Type E
Normal fuse Blown fuse
Type A, B, C and D: Replace the blown fuse with a new fuse of an appropriate amperage rat- ing. The amperage rating can be found on the fuse box lid. Type E: Contact your Toyota dealer.
PRIUS c_U (OM52E68U)
7-3. Do-it-yourself maintenance
419
■After a fuse is replaced
need replacement. (P. 420)
●If the lights do not turn on even after the fuse has been replaced, a bulb may
●If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions. Failure to do so may cause damage to the vehicle, and possibly a fire or injury. ●Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
●Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes. ■Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near the fuse box. Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toyota dealer as soon as possible.
PRIUS c_U (OM52E68U)
420
7-3. Do-it-yourself maintenance
