Page 502 of 592

5028-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
If any of the following messages are displayed, take the appropriate
actions as shown below:
■If “Press brake when vehicle is stopped. Hybrid system may
overheat.” is displayed
Message is displayed when the accelerator pedal is depressed to
maintain the vehicle position when stopped on an upward slope,
etc.
If this continues, the hybrid sy stem may overheat. Release the
accelerator pedal and depress the brake pedal.
■If “Hybrid battery low. Hybrid system stopped. Shift to P and
restart.” is displayed
Message is displayed when the remaining charge for the hybrid
battery (traction battery) is low, because vehicle has been shifted N
for a long period of time.
When operating the vehicle, re start the hybrid system.
■If “Hybrid system malfunction. Stop in a safe place. See
owner’s manual.” is displayed
Refer to “If a message instructing to refer to the Owner’s Manual is
displayed”. ( P. 504)
If a message about the hybrid system or hybrid battery (traction
battery) is displayed
Page 503 of 592

5038-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
■If “Hybrid battery low. Shift out of N to recharge.” is displayed
Message is displayed when the remaining charge for the hybrid
battery (traction battery) is low.
As the hybrid battery (traction battery) cannot be charged when the
shift position is in N, when stopped for long periods of time change
the shift position to P.
■If “Hybrid system overheated. Reduced output power.” is dis-
played
This message may be displayed wh en driving under severe operat-
ing conditions.
(For example, when driving up a long steep hill.)
Handling method: P. 5 4 4
■If “Maintenance required for hybrid battery cooling parts at
your dealer.” is displayed
The filter may be clogged, the ai r intake vent may be blocked or
there may be a gap in the duct. Have maintenance performed on
the hybrid battery (traction batt ery) cooling component at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
Page 504 of 592

5048-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
●If any of the following messages are displayed, take the appropriate
actions as shown on the following pages in this Owner’s Manual:
• “12-volt battery low. Shifting unavailable. Read Owner’s Man-
ual.”: P. 500
• “Shift system failure. When pa rking, apply parking brake. Read
owner’s manual.”: P. 5 0 1
• “Shift system comm. failure. W hen parking, apply parking brake.
Read owner’s manual.”: P. 501
• “12-volt battery low. When park ing, apply parking brake. Read
Owner’s Manual.”: P. 501
● If the following messages are displayed, there may be a malfunc-
tion.
Immediately stop the vehicle in a safe place and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
• “Brake effectiveness is reduced due to failure, please stop in a
safe area and check manual.”
• “Hybrid system malf unction. Stop in a safe place. See owner’s
manual.”
● If the following message is displayed, there may be a malfunction.
Immediately have the vehicle in spected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
• “Shift system failure. Read Owner’s Manual.”
If a message instructing to refer to the Owner’s Manual is dis-
played
Page 505 of 592

5058-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
Take the appropriate actions as instructed in the message displayed.
If any of the following messages are displayed, also refer to this
Owner’s Manual.
■If “Check charging system.” is displayed
Indicates a malfunction in t he vehicle's charging system.
Immediately stop the vehicle in a safe place and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■If “Engine oil pressure low.” is displayed
Indicates that the engine oil pressure is too low.
Immediately stop the vehicle in a safe place and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■When “Headlight system malfunction. Visit your dealer.” is
displayed on the multi-information display (if equipped)
The following systems may be malfunctioning. Have the vehicle
inspected by any autho rized Toyota dealer or repairer, or another
duly qualified and equipped professional immediately.
● The LED headlight system
● The automatic headlight leveling system
● Automatic High Beam
■If “Front sensor systems are temporarily unavailable due to
inappropriate temp. Wait a moment.” or “Front Camera Vision
Blocked Clean and Demist Wi ndshield.” is displayed (if
equipped)
The following systems may be suspended until the problem shown
in the message is resolved.
● PCS (Pre-Crash Safety system)
● LDA (Lane Departure Alert)
● Automatic High Beam
● RSA (Road Sign Assist)
Other messages displayed on the multi-information display
Page 506 of 592

5068-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
■If “Shift to P before exiting vehicle.” is displayed
Message is displayed when the driver’s door is opened without
turning the power switch to off with the shift position in any position
other than P.
Change the shift position to P.
■If “Shift is in N. Release accel erator before shifting.” is dis-
played
Message is displayed when the accelerator pedal has been
depressed and the shift position is in N.
Release the accelerator pedal and change the shift position to D or
R.
■ System warning lights
In the following situations, the master warning light will not come on or flash.
Instead, a separate system warning light will come on along with a message
displayed on the multi-information display.
● Malfunction of the brake system
The brake system warning light will come on. ( P. 491)
● High engine coolant temperature
The high engine coolant temperature warning light will be displayed.
( P. 491)
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.
Page 526 of 592
5268-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
Start the hybrid system.
To inject the sealant and inflate
the tire, turn the compressor
switch on.
Inflate the tire until the specified
air pressure is reached.
The sealant will be injected
and the pressure will surge
and then gradually decrease.
The air pressure gauge will
display the actual tire infla-
tion pressure about 1 minute
(5 minutes at low tempera-
ture) after the switch is
turned on.
Inflate the tire until the speci-
fied air pressure.
• If the tire inflation pressure is
still lower than the specified
point after inflation for 35 min-
utes with the switch on, the tire
is too damaged to be repaired.
Turn the compressor switch off
and contact any authorized
Toyota dealer or repairer, or
another duly qualified and
equipped professional.
• If the tire inflation pressure exceeds the specified air pressure, let out
some air to adjust the tire inflation pressure. ( P. 529, 560)
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14
15
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Page 537 of 592

5378-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
Depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON mode.
When the smart entry & start sys-
tem or push button start is deacti-
vated in customization setting, the
power switch will turn to ACCES-
SORY mode.
Firmly depress the brake pedal and check that is shown on
the multi-information display.
Press the power switch.
In the event that the hybrid system still cannot be started, contact any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■ Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the power switch
as you normally do when stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 459)
■ Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered.
Starting the hybrid system
1
2
3
4
Page 544 of 592

5448-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
●The high engine coolant temperature (P. 491) is shown on the
multi-information display or a loss of hybrid system power is experi-
enced (for example, the vehicle speed does not increase).
● “Hybrid system overheated. Reduced output power.” is shown on
the multi-information display.
● Steam comes out from under the hood.
■If the high engine coolant temperature is shown on the multi-
information display
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
any authorized Toyota dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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2
3
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2