Plug-in hybrid system
The illustration is an example for explanation and may differ from the actual item.
Front electric motor (traction motor) Rear electric motor (traction motor)
The plug-in hybrid system oper- ates in the following modes.
The multi-information display can be used to check which mode the plug-in hybrid system is currently being driven in. (P.160)
When in EV mode, the EV drive mode indicator illuminates.
*1: The amount of remaining charge can be checked on the SOC (State of Charge) gauge. (P.165)
*2: Depending on the situation, EV driving may be canceled and both gasoline engine and electric motor are used. (P.82)
When the vehicle is in a condi- tion where EV driving is possi- ble, EV mode and AUTO EV/HV mode can be switched by oper- ating the switch. (P.78)
When in AUTO EV/HV mode, the AUTO EV/HV mode indicator illumi- nates.
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engine and electric motor. (P.81)
When in HV mode, the HV drive mode indicator illuminates.
*: The EV driving range may reduce even after switching to HV mode.
When in the hybrid battery (traction battery) charge mode, the hybrid battery charge mode indicator illu- minates.
*: When in the hybrid battery (trac- tion battery) charge mode, the hybrid battery can be charged while driving. However, the gaso- line engine runs to charge the battery and fuel consumption becomes higher compared with driving in HV mode.
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Plug-in hybrid system operation mode selection switches |
Press the AUTO EV/HV mode switch or EV/HV mode selection switch to change modes as the following table shows.
When in EV mode, the EV drive mode indicator illuminates.
When in AUTO EV/HV mode, the AUTO EV/HV mode indicator illumi- nates.
When in HV mode, the HV drive mode indicator illuminates.
*: If there is not enough charge remaining in the hybrid battery (traction battery) to allow EV driv- ing, AUTO EV/HV mode will not be selectable.
*: If there is not enough charge remaining in the hybrid battery (traction battery) to allow EV driv- ing, EV mode will not be select- able.
Take your hand off the switch once the hybrid battery charge mode indicator starts to blink.
The hybrid battery charge mode indicator illuminates when the switch to hybrid battery (traction battery) charge mode is complete.
When the hybrid battery (traction battery) is fully charged*, the hybrid battery (traction battery) charge mode is automatically canceled and the operation mode will be switched to HV mode.
The hybrid battery (traction bat- tery) charge mode will be canceled by pressing AUTO EV/HV mode switch or EV/HV mode selection switch.
*: The maximum charge amount in the hybrid battery (traction bat- tery) charge mode is approxi- mately 80% of the fully charged capacity for the charging from an
external power source.
In the following situations, the plug- in hybrid system operation mode cannot be changed even if the AUTO EV/HV mode switch or EV/HV mode selection switch is pressed. (In this case, the warning message is displayed on the multi- information display when the switch is pressed.)
When the power switch is turned off, operation mode switching is can- celed and the system returns to EV mode the next time the vehicle is started.*
*: If there is not enough charge remaining in the hybrid battery (traction battery) to allow EV driv- ing, the system switches to HV mode.
the system, etc.
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When using the hybrid bat- tery (traction battery) charge mode
Observe the following precautions when using the hybrid battery (traction battery) charge mode while parking. Failure to do so may lead to death or serious health hazard, as the gasoline engine operates when in the hybrid battery (traction bat- tery) charge mode. Do not stop the vehicle near flammable materials.
Do not use the hybrid battery (traction battery) charge mode in a closed area where ventila- tion is insufficient, such as in a garage or area with snow buildup.
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WARNING|
Control when driving in each mode |
using only the electric motor)* is possible. However, depending on the situation, EV driving may be canceled and both gasoline engine and electric motor are used (P.82). Also, if a little electricity is remaining in the hybrid battery (traction battery), HV mode is automatically selected. To drive in EV mode long, observe the followings.
*: The EV driving range can be checked using the multi-informa- tion display. (P.172)
Also, when the hybrid battery (traction battery) level is low, the mode switches to HV mode
automatically the same as in EV mode.
AUTO EV/HV mode is suitable for driving conditions when more power is required, such as for driving uphill or accelerating suddenly. However, because the gasoline engine will start more easily, it is recommended to drive in EV mode usually.
*: The EV driving range can be checked using the multi-informa- tion display. (P.172)
In HV mode, controls are pri- marily carried out as follows in accordance with the driving con- ditions.
*: When the hybrid battery (traction battery) requires charging or the engine is warming up, etc., the gasoline engine will not automati- cally stop. (P.83)
The EV driving range can be extended by actively using this regenerative braking to store electricity in the hybrid battery (traction battery).
Moreover, as fuel consumption is also reduced when in HV mode, the regenerative braking system can be used effectively.
In the following situations, kinetic energy is converted to electric energy and deceleration force can be obtained in conjunction with the recharging of the hybrid battery (traction battery).
on the multi-information display. (P.172)
The EV indicator comes on when the vehicle is driven using only the electric motor (traction motor) or the gasoline engine is stopped.
The on/off operation of the EV indi- cator can be changed. (P.177)
If the hybrid battery (traction battery) is regenerated by driving continu- ously down a long slope, the EV driving range etc. will be displayed on the multi-information display and EV mode will be automatically switched to.
If EV mode is not switched to even though EV driving range is being displayed, EV mode can be switched to by pressing the EV/HV mode selection switch.
Even if there is a sufficient amount of electricity remaining in the hybrid battery (traction battery) and EV
driving range (P.172) is being dis- played on the multi-information dis- play, EV driving (driving using only the electric motor) may be canceled and both gasoline engine and elec- tric motor are used depending on the situation (EV driving will be returned to automatically after EV driving becomes possible again).
EV driving may be canceled auto- matically in the following circum- stances*1:
The vehicle has been left in the sun, driven on a hill, driven at high speeds, etc.
*1: The gasoline engine may also operate in circumstances other than those listed above, depend- ing on conditions.
*2: When driving in AUTO EV/HV mode. Even in EV mode, the gas- oline engine may start, depend- ing on the condition of the hybrid battery (traction battery).
EV driving may be canceled in order
to protect the hybrid system, etc.
In this case, perform driving with the gasoline engine until EV driving will be returned to automatically.
The gasoline engine starts and stops automatically. However, it may not stop automatically in the following conditions*:
*: Depending on the circumstances, the gasoline engine may also not stop automatically in situations other than those above.
There may be no engine sound or vibration even though the vehicle is able to move with the “READY” indi- cator is illuminated. For safety, apply the parking brake and make sure to shift the shift lever to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are not a malfunc- tion.
shorter.
from the air intake vent under the
rear seat. (P.91)
Contact your Toyota dealer regard- ing maintenance, repair, recycling and disposal. Do not dispose of the vehicle yourself.
Even if charging the hybrid battery (traction battery) has not been com- pleted, the vehicle can be driven.
However, if there is not enough charge remaining, it is possible that the vehicle cannot be driven in EV mode or AUTO EV/HV mode or the EV driving range will become
Plug-in hybrid vehicles can be driven using electricity charged from an external power source. However, as the gasoline engine is used depending on the situation (P.82) even if in EV mode or AUTO EV/HV mode, and the gasoline engine is provided on board as a power source for driving in HV mode, it is needed to refueling the vehicle.
Check the fuel amount and refill immediately when the fuel level becomes low. (P.306)
In order to prevent the hybrid bat- tery (traction battery) from becom- ing extremely low in charge, charge the hybrid battery (traction battery) from external power source or start the hybrid system at least once every 2 or 3 months, and turn the power switch off after the gasoline engine has stopped automatically. (If the gasoline engine does not start up even after approximately 10 seconds have passed since the “READY” indicator came on, the power
switch can be turned to off without any further action.)
When the 12-volt battery is dis- charged, refer to P.539, “If the 12- volt battery is discharged” and perform the correction procedure.
tem may be malfunctioning. Have the vehicle inspected by your Toyota dealer immediately.
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Predictive efficient drive (predictive deceleration support) (vehicles with navigation system)* |
*: This function can only be used in the mainland U.S.A. It cannot be used in other states and territo- ries, including Alaska and Hawaii.
For details about Predictive effi- cient drive, refer to “NAVIGA- TION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
ence operation range” ( A ) of
tem
In the following cases, the Acoustic Vehicle Alerting System may be dif- ficult for surrounding people to hear.
Also, as the Acoustic Vehicle Alert- ing System is installed on the front of the vehicle, it may be more diffi- cult to hear from the rear of the vehi- cle compared to the front.
The Acoustic Vehicle Alerting Sys-
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The illustration is an example for explanation and may differ from the actual item.
High voltage cables (orange) Power control unit
DC/DC converter
Rear electric motor (traction motor) AC charging inlet
Service plug
Onboard traction battery charger Hybrid battery (traction battery)
Front electric motor (traction motor) Air conditioning compressor Junction box
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the vehicle with at least enough gasoline to make the low fuel level warning light (P.518) go off. If there is only a small amount of fuel, the hybrid system may not be able to start. (The stan- dard amount of fuel is about 2.3 gal. [8.8 L, 1.9 Imp.gal.], when the vehi- cle is on a level surface. This value may vary when the vehicle is on a slope. Add extra fuel when the vehi- cle is inclined.)
If objects that generate strong mag- netic forces, such as large speak- ers, are placed inside the luggage compartment or installed nearby, the generated magnetic forces may negatively affect the hybrid system.
The hybrid battery (traction battery) has a limited service life.
The hybrid battery (traction battery) capacity (the ability to hold a charge) reduces with time and use in the same way as other recharge- able batteries. The extent at which
capacity reduces changes drasti- cally depending on the environment (ambient temperature, etc.) and usage conditions, such as how the vehicle is driven and how the hybrid battery (traction battery) is charged. This is a natural characteristic of lithium-ion batteries, and is not a malfunction. Also, even though the EV driving range becomes shorter when the hybrid battery (traction battery) capacity reduces, vehicle performance does not significantly become worse.
In order to reduce the possibility of the capacity reducing, follow the directions listed on P.121, “Capacity reduction of the hybrid battery (trac- tion battery)”.
When the hybrid battery (traction battery) is extremely cold (below approximately -22°F [-30°C]) under the influence of the outside tem- perature, it may not be possible to start the hybrid system. In this case, try to start the hybrid system again after the temperature of the hybrid battery increases due to the outside temperature increase etc.
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High voltage precautions
The vehicle has high voltage DC and AC systems as well as a 12- volt system. DC and AC high volt- age is very dangerous and can cause severe burns and electric shock that may result in death or serious injury. |
WARNING
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Notice about fuel
For plug-in hybrid vehicles, fuel may remain in the tank for a long time and undergo changes in quality depending on the how the vehicle is used. Refuel at least 5.3 gal. (20 L, 4.4 Imp.gal.) of fuel every 12 months (refuel a total of at least 5.3 gal. [20 L,
4.4 Imp.gal.] over a 12-month period), as this may affect com- ponents of the fuel system or the gasoline engine. If the vehicle has not been refu- eled for a certain amount of time and it is possible that the quality of the fuel remaining in the tank has changed, “No New Fuel has been Added Recently Please refuel” is displayed on the multi- information display when the power switch is turned to ON. If the message is displayed, refuel the vehicle immediately.
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NOTICE|
DC/DC converter air intake vent |
Blocking the air intake vent may prevent the plug-in hybrid sys- tem from operating properly.
When a certain level of impact is
detected by the impact sensor, the emergency shut off system blocks off the high voltage cur- rent and stops the fuel pump to minimize the risk of electrocu- tion and fuel leakage.
If the emergency shut off system activates, your vehicle will not restart. To restart the hybrid sys- tem, contact your Toyota dealer.
A message is automatically dis- played when a malfunction occurs in the hybrid system or an improper operation is attempted.
If a warning message is shown on the multi-information display, read the message and follow the instructions.
The hybrid system may not start. In that case, try to start the system again. If the “READY” indicator does not come on, contact your Toyota dealer.
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Using EV mode, AUTO EV/HV mode and HV mode effectively |
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Using Eco drive mode |
When using Eco drive mode, the torque corresponding to the accelerator pedal depression amount can be generated more smoothly than it is in normal conditions. In addition, the oper- ation of the air conditioning sys- tem (heating/cooling) will be minimized, improving fuel and electricity economy. (P.377)
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Use of Hybrid System Indicator |
Eco-friendly driving is possible by keeping the Hybrid System Indicator within Eco area. (P.167)
Shift the shift lever to D when stopped at a traffic light, or driv- ing in heavy traffic etc. Shift the shift lever to P when parking.
When using the N, there is no positive effect on fuel consump- tion. In the N, the gasoline engine operates but electricity cannot be generated. Also, when using the air conditioning system, etc., the hybrid battery (traction battery) power is con- sumed.
Make sure to operate the brakes gently and a timely manner. A
greater amount of electrical energy can be regenerated when slowing down.
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Delays |
Repeated acceleration and deceleration, as well as long waits at traffic lights, will lead to high fuel and electricity con- sumption. Check traffic reports before leaving and avoid delays as much as possible. When driv- ing in a traffic jam, gently release the brake pedal to allow the vehicle to move forward slightly while avoiding overuse of the accelerator pedal. Doing so can help control excessive electricity and fuel consumption.
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Highway driving |
HV mode while on the free- way and change to EV mode or AUTO EV/HV mode after leaving the freeway. (P.78)
In summer: When the ambient tem- perature is high, use the recircu- lated air mode. Doing so will help to reduce the burden on the air condi- tioning system and reduce electric- ity and fuel consumption as well.
In winter: Avoid excessive and unnecessary use of the heater. Usage of the heated steering wheel (if equipped) (P.407) and seat heaters (P.408) are effective.
before charging is completed. (P.130)
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Checking tire inflation pressure |
Make sure to check the tire infla- tion pressure frequently. If there is improper tire inflation pres- sure in the tires, the EV driving range will become shorter, and fuel consumption when in HV mode will increase.
Also, as snow tires can cause large amounts of friction, their use on dry roads can lead to increased fuel and electricity consumption.
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Luggage |
Carrying heavy luggage will lead to poor fuel economy. Avoid car- rying unnecessary luggage.
Installing a large roof rack will also cause poor fuel economy.
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Warming up before driv- ing |
Since the gasoline engine starts up and cuts out automatically, warming up is not necessary.
The value displayed on the SOC (State of Charge) gauge (P.165) is estimated from the following information.
The electricity consumption var- ies depending on how the vehi- cle is driven. The vehicle
automatically records the elec- tricity consumption when being charged and uses the electricity consumption for estimating the EV driving range. Therefore, the EV driving range displayed when the hybrid battery (traction battery) is fully charged may dif- fer from the previous EV driving range depending on how the vehicle was driven.
The EV driving range may change significantly with each charging until the electricity con- sumption based on the recorded value is stable (for approxi- mately the first month or two).
However, this does not indicate a malfunction.
When the air conditioning sys- tem is turned on, the EV driving range (with using the air condi- tioning system) is estimated based on the past air condition- ing electricity consumption amount considering that the electricity consumption may become higher.
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Tips for extending the EV driving range |
The distance that EV driving is possible varies significantly depending on how the vehicle is driven, road conditions, the weather, the outside tempera- ture, usage conditions of electri- cal components and the number
of occupants.
The distance that EV driving is possible can be extended if the following is performed:
As a guide, accelerate up to approximately 12mph (20 km/h) in the first 5 seconds.
Electrical and fuel efficiency can be improved just by using the ECO Accelerator Guidance dis- played on the multi-information display and taking care to start off gently. (P.173)
When the driving mode is set to Eco drive mode, depressing the accelerator pedal generates smooth torque that makes it easier to operate the accelerator gently.
At the same time, the air condition- ing control is switched to eco air conditioning mode (P.397) to reduce the strength of the air condi- tioning operation.
The regenerative brake will operate to convert the kinetic energy of the vehicle into electri- cal energy, which will charge the hybrid battery (traction battery).
The regeneration status can be checked from the Hybrid Sys- tem Indicator. (P.167)
When the brake pedal is depressed lightly during decel- eration, the regeneration amount increases, enabling more electrical energy to be recovered.
If the brake pedal is depressed too strongly, the recovered amount indicator will reach the maximum level and the upper limit of the recoverable energy will be exceeded. Therefore, be sure to operate the brake pedal early.
Preventing excessive cooling or heating of the vehicle will reduce power consumption and improve electrical efficiency.
When eco air conditioning mode is used, the air conditioning con- trol is switched automatically to a lower setting. (P.397)
The heated steering wheel (if equipped) and seat heaters are efficient heating device that directly warm the body using less electric power.
When used together with the air conditioning system, a low tem- perature setting can be used to improve electrical and fuel effi- ciency.
A pressure level 7 psi (50 kPa, 0.5 kgf/cm2 or bar) lower than the spec- ified value will cause a worsening of several percentage points.
Driving with objects weighing 220 lb. (100 kg) in the vehicle will worsen the electrical and fuel efficiency by approximately 3%.
Air resistance also greatly affects electrical and fuel effi- ciency. Remove any exterior accessories such as a roof lug- gage carrier when they are not being used.
The running resistance of snow tires is high and they will worsen electrical and fuel efficiency.
Replace them with standard tires as soon as they are no lon- ger needed.
If you know your vehicle’s daily electrical and fuel efficiency, you will understand the benefits of Eco drive.
Use the Power Consump- tion/Fuel Economy, ECO Accel- erator Guidance/“Eco Score” and other data displayed on the multi-information display.
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Display when charging is completed |
The following indicate that charging has been carried out properly.
Regardless of the type of power
source or whether the charging schedule function is used, charging is completed if the above can be confirmed.
Charging-related messages:
P.152
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