Page 473 of 524

5
473 5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EETo change “POWER” switch modes: Within 5 seconds of the
buzzer sounding, release the brake pedal and press the
“POWER” switch. Modes can be changed each time the
switch is pressed. (P. 174)
To start the hybrid system: Press the “POWER” switch within
5 seconds after the buzzer sounds, keeping the brake pedal
depressed.
In the event that the “POWER” switch still cannot be operated, con-
tact any authorized Toyota dealer or repairer, or another duly quali-
fied and equipped professional.
Stopping the hybrid system
Push the P position switch 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 depletes.
(P. 397)
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. (P. 114)
STEP3
Page 474 of 524
474
5-2. Steps to take in an emergency
UK_AURIS_HV_EE
If the 12-volt batter y is discharged
The following procedures may be used to start the hybrid system if
the vehicle's 12-volt battery is discharged.
You can call any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
If you have a set of jumper (or booster) cables and a second vehi-
cle with a 12-volt battery, you can jump start your Toyota following
the steps below.
Open the hood and fuse block
cover.
Open the exclusive jump start-
ing terminal cover.
STEP1
STEP2
Page 475 of 524
5
475 5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EE
Connect the jumper cables.
Exclusive jump starting terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown in
the illustration.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the 12-volt battery of your vehicle.
Maintain the engine speed of the second vehicle and turn
the “POWER” switch to ON mode, then start the vehicle's
hybrid system.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact at any authorized Toyota dealer
or repairer, or another duly qualified and equipped profes-
sional.
STEP3
STEP4
STEP5
STEP6
Page 476 of 524

476 5-2. Steps to take in an emergency
UK_AURIS_HV_EE
Starting the hybrid system when the 12-volt 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.
When the 12-volt battery is removed or discharged
If the 12-volt battery is depleted with the shift position in P, it will not be
possible to shift out of P. In this case, the vehicle cannot be towed without
lifting both front wheels because the front wheels are locked by the park-
ing lock. (P. 423)
The hybrid system may not start. (P. 384)
Once the hybrid system has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Close the exclusive jump starting terminal cover and rein-
stall the fuse box cover.
Once the hybrid system starts, have the vehicle checked at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional, as soon as possible.STEP7
STEP8
Page 477 of 524

5
477 5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EE
CAUTION
Avoiding 12-volt battery fires or explosions
The flammable gas that may be generated by the assisting vehicle battery
may catch fire and explode. Make sure to observe the following to prevent
fire or sparks.
Make sure the jumper cable is connected to the correct terminal and that it
is not unintentionally in contact with any part other than the intended termi-
nal.
Do not allow the jumper cables to come into contact with the “+” and “-” ter-
minals.
Do not allow open flame or use matches, cigarette lighters or smoke near
the 12-volt battery.
12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte,
while related parts contain lead and lead compounds. Observe the following
precautions when handling the 12-volt battery.
When working with the 12-volt battery, always wear safety glasses and
take care not to allow any battery fluids (acid) to come into contact 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 attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
Do not allow children near the 12-volt battery.
Page 478 of 524
478 5-2. Steps to take in an emergency
UK_AURIS_HV_EE
NOTICE
When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan
or any of the belts when connecting or disconnecting them.
Exclusive jump starting terminal precaution
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.
Page 479 of 524
5
479
5-2. Steps to take in an emergency
When trouble arises
UK_AURIS_HV_EE
If your vehicle overheats
Correction procedures
If the top segments of the engine coolant temperature gauge
are flashing
Stop the vehicle in a safe place and turn off the air condition-
ing 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.
The following may indicate that your vehicle is overheating:
The top segments of the engine coolant temperature gauge are
flashing:
The engine may be overheating.
“HYBRID SYSTEM OVERHEAT” is shown on the multi-informa-
tion display:
The power control unit may be overheating.
Follow the correction procedure as described below.
STEP1
STEP2
Page 480 of 524
480 5-2. Steps to take in an emergency
UK_AURIS_HV_EECheck to see if the cooling fans are operating.
If the fans are operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Toyota dealer or repairer, or another duly qualified and
equipped professional.
After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the radiator core (radia-
tor) for any leaks.
If necessary, add engine coolant
up to the “FULL” line.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (P. 496)
STEP3
STEP4
STEP5