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6-3. Do-it-yourself maintenance
Maintenance and care
remove the filter from cover as
shown in the illustration.
4 Remove the dust and clogs from
the filter using a vacuum
cleaner, etc.
Make sure to also remove the dust and clogs from the inside of the air intake
vent cover.
5 Reinstall the filter to the cover.
1 Engage the filter to the 2 tabs as
shown in the illustration.
2 Engage the 2 claws to install the
filter.
Make sure that the filter is not crooked or deformed when installing it.
6 Install the air intake vent cover.
1 Insert the tab of the cover as
shown in the illustration.
2 Push the cover to engage the 2
claws.
■Scheduled maintenance of the air
intake vent
Refer to “Toyota Service Booklet” or “Toyota Warranty Booklet”.
■Cleaning the air intake vent
●Dust in the air intake vent may inter-fere with the cooling of the hybrid bat-
tery (traction battery). If charging/discharging of the hybrid battery (traction battery) becomes lim-
ited, the distance that the vehicle can be driven using the electric motor (traction motor) may be reduced and
the fuel economy may be reduced. Inspect and clean the air intake vent periodically.
●Improper handling of the air intake vent cover and filter may result in
damage to them. If you have any con- cerns about cleaning the filter, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reli- able repairer.
■If “Maintenance Required for Trac-tion Battery Cooling Parts See
Owner’s Manual” is displayed on the multi-information display
●If this warning message is displayed on the multi-information display, remove the air intake vent cover and
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6-3. Do-it-yourself maintenance
Maintenance and care
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system (if equipped) and wireless remote control
will not function properly.
●The operational range will be reduced.
Flathead screwdriver
Small flathead screwdriver
Lithium battery CR2032 (vehi-
cles without a smart entry & start
system), or CR2450 (vehicles
with a smart entry & start sys-
tem)
■Use a CR2032 (vehicles without a
smart entry & start system) or CR2450 (vehicles with a smart entry & start system) lithium bat-
tery
●Batteries can be purchased at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
NOTICE
●Do not install anything to the air intake vent other than the exclusive
filter for this vehicle or use the vehi- cle without the filter installed.
■If “Maintenance Required for Traction Battery Cooling Parts See Owner’s Manual” is dis-
played on the multi-information display
If the vehicle is continuously driven
with the warning message (indicating that charging/discharging of the hybrid battery [traction battery] may
become limited) displayed, the hybrid battery (traction battery) may mal-function. If the warning message is
displayed, clean the air intake vent immediately.
Wireless remote con-
trol/electronic key bat-
ter y
Replace the battery with a new
one if it is depleted.
As the key may be damaged if
the following procedure is not
performed properly, it is rec-
ommended that key battery
replacement be performed by
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
Items to prepare
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7-2. Steps to take in an emergency
When trouble arises
■Hybrid system overheat warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
Warning lightDetails/Actions
Indicates the hybrid system has overheated
Stop the vehicle in a safe place.
Handling method ( P.414)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is excessively low
Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning lightDetails/Actions
Indicates a malfunction in:
The hybrid system;
The electronic engine control system; or
The electronic throttle control system
Immediately stop the vehicle in a safe place and contact
any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
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7-2. Steps to take in an emergency
When trouble arises
speed range (if equipped)
■If a message that indicates the mal-
function of radar sensor is dis- played
The following systems may be sus-
pended until the problem shown in the message is resolved. ( P.207, 374)
●PCS (Pre-Collision system) (if equipped)
●LTA (Lane Tracing Assist) (if equipped)
●Dynamic radar cruise control with full-speed range (if equipped)
■If “Oil Maintenance Required Soon” is displayed
Indicates that the engine oil should be scheduled to be changed.
Check the engine oil and change it if
necessary.
After changing the engine oil, make sure to reset the message. ( P.327)
■If “Oil Maintenance Required Visit
Your Dealer” is displayed
Indicates that the engine oil should be changed.
Check and change the engine oil, and oil filter by any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer. After changing the engine oil, make sure to reset the message. ( P.327)
■If “Radar Cruise Control Unavail-
able See Owner’s Manual” is dis- played (if equipped)
The dynamic radar cruise control with
full-speed range system is suspended temporarily or until the problem shown in the message is resolved. (causes and
coping methods: P.207)
■If “Radar Cruise Control Unavail- able” is displayed (if equipped)
The dynamic radar cruise control with
full-speed range system cannot be used temporarily. Use the system when it becomes available again.
■If a message that indicates the
need for visiting your Toyota dealer is displayed
The system or part shown on the multi-
information display is malfunctioning. Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.
■If a message that indicates the need for referring to Owner’s Man-
ual is displayed
●If “Engine Coolant Temp High” is dis-
played, follow the instructions accord- ingly. ( P.414)
●If “Exhaust Filter Full” is displayed, fol- low the instructions accordingly. ( P.276)
●If any of the following messages are displayed on the multi-information dis-
play, it may indicate a malfunction. Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately.• “Smart Entry & Start System Malfunc-
tion” • “Hybrid System Malfunction”• “Check Engine”
• “Hybrid Battery System Malfunction” • “Accelerator System Malfunction”
●If any of the following messages are displayed on the multi-information dis-play, it may indicate a malfunction.
Immediately stop the vehicle and con- tact any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer. • “Braking Power Low”• “12-Volt Battery Charging System
Malfunction” • “Oil Pressure Low”
●If any of the following messages are shown on the multi-information dis-play, the vehicle may have run out of
fuel. Stop the vehicle in a safe place and, if the fuel level is low, refuel the vehicle. ( P. 8 0 )
• “Hybrid System Stopped” • “Engine Stopped”
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7-2. Steps to take in an emergency
When trouble arises
minutes to recharge the 12-volt
battery of your vehicle.
6 Vehicles with a smart entry &
start system: Open and close
any of the doors of your vehicle
with the power switch OFF.
7 Maintain the engine speed of
the second vehicle and start the
hybrid system of your vehicle by
turning the power switch to ON.
8 Make sure the “READY” indica-
tor comes on. If the indicator
does not come on, contact any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
9 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were con-
nected.
10 Close the exclusive jump start-
ing terminal cover and install the
fuse box cover to its original
position.
Once the hybrid system starts,
have the vehicle inspected at any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery dis-charge
●Turn off the headlights and the audio
system while the hybrid system is 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.
■When the 12-volt battery is removed or discharged
●Information stored in the ECU is cleared. When the 12-volt battery is
depleted, have the vehicle inspected at any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer.
●Some systems may require initializa-
tion. ( P.440)
■When removing the 12-volt battery terminals
When the 12-volt battery terminals are
removed, the information stored in the ECU is cleared. Before removing the 12-volt battery terminals, contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Charging the 12-volt battery
The electricity stored in the 12-volt bat- tery will discharge gradually even when the vehicle is not in use, due to natural
discharge and the draining effects of certain electrical appliances. If the vehi-cle is left for a long time, the 12-volt bat-
tery may discharge, and the hybrid system may be unable to start. (The 12-volt battery recharges automatically
while the hybrid system is operating.)
■When recharging or replacing the 12-volt battery (vehicles with a smart entry & start system)
●In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the 12-volt battery is discharged. Use the wire-less remote control or the mechanical
key to lock or unlock the doors.
●The hybrid system may not start on
the first attempt after the 12-volt bat- tery has recharged but will start nor-mally after the second attempt. This is
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7-2. Steps to take in an emergency
When trouble arises
WARNING
●Make sure each jumper cable is connected to the correct terminal
and that it is not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+”
terminal to come into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
●Do not allow the + and - clamps of
the jumper cables to come into con- tact with each other.
●Do not smoke, use matches, ciga-rette lighters or allow open flame near the 12-volt battery.
■12-volt battery precautions
The 12-volt battery contains poison-
ous and corrosive acidic electrolyte, while related parts contain lead and lead compounds. Observe the follow-
ing precautions when handling the 12-volt battery:
●When working with the 12-volt bat-tery, always wear safety glasses and take care not to allow any bat-
tery fluids (acid) to come into con- tact with skin, clothing or the vehicle body.
●Do not lean over the 12-volt battery.
●In the event that battery fluid comes into contact with the skin or eyes, immediately wash the affected area
with water and seek medical atten- tion. Place a wet sponge or cloth over the affected area until medical
attention can be received.
●Always wash your hands after han-
dling the 12-volt battery support, terminals, and other battery-related parts.
●Do not allow children near the 12-volt battery.
■After recharging the 12-volt bat-tery
Have the 12-volt battery inspected at
any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer as soon as possible.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt battery to emit a malodorous gas,
which may be detrimental to the health of passengers.
■When replacing the 12-volt bat-tery
●For information regarding 12-volt
battery replacement, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
●After replacing, securely attach the
exhaust hose and exhaust hole plug to the exhaust hole of the replaced 12-volt battery. If not prop-
erly installed, gases (hydrogen) may leak into the vehicle interior, and there is the possible danger of
the gas igniting and exploding.
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7-2. Steps to take in an emergency
If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display
1 Stop the vehicle in a safe place
and turn off the air conditioning
system, and then stop the hybrid
system.
2 If you see steam: Carefully lift
the hood after the steam sub-
sides.
If you do not see steam: Care-
fully lift the hood.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entangled in the cooling fan, etc.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-
volt battery from another vehicle in an emergency. It cannot be used to jump start another vehicle.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
The engine coolant tempera-
ture gauge ( P.94, 99) is in
the red zone or a loss of hybrid
system power is experienced.
(For example, the vehicle
speed does not increase.)
“Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” or “Hybrid
System Overheated Output
Power Reduced” is shown on
the multi-information display.
Steam comes out from under
the hood.
Correction procedures
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8-1. Specifications
Vehicle specifications
Cooling system
Capacity
(Reference)
Gasoline
engine
Right-hand drive vehicles
5.11 L (5.4 qt., 4.5 Imp. qt.)
Left-hand drive vehicles
5.09 L (5.4 qt., 4.5 Imp. qt.)
Power con-
trol unit1.3 L (1.4 qt., 1.1 Imp. qt.)
Coolant type
Use either of the following:
“Toyota Super Long Life Coolant”
Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-Q8
NGK DILKAR6T8
Gap0.8 mm (0.031 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (12-volt battery)
Open voltage at 20°C (68°F):
12.0 V or higher
(Turn the power switch off and turn on the high
beam headlights for 30 seconds.)
Charging rates
Quick charge
Slow charge
15 A max.
5 A max.