721-4. Hybrid system
1-4.Hybrid system
The illustration is an example for explanation and may differ from the actual
item.
Gasoline engine
Front electric motor (traction motor)
Rear electric motor (traction motor)
■When stopped/during start
off
The gasoline engine stops
*
when the vehicle is stopped.
During start off, the electric
motor (traction motor) drives the
vehicle. At slow speeds or when traveling down a gentle slope,
the engine is stopped
* and the
electric motor (traction motor) is
used.
When the shift lever is in N, the
hybrid battery (traction battery)
is not being charged.
Hybrid system features
Your vehicle is a hybrid vehicle. It has characteristics differ ent
from conventional vehicles. Be sure you are closely familiar
with the characteristics of your vehicle, and operate it with
care.
The hybrid system combines the use of a gasoline engine and
an electric motor (traction motor) according to driving condi-
tions, improving fuel efficiency and reducing exhaust emis-
sions.
System components
A
B
C
751-4. Hybrid system
1
For safety and security
*: 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.
This system operates based on
the driving situation and traffic
information to enhance fuel
economy.
For details about Predictive effi-
cient drive, refer to “NAVIGA-
TION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.
■Predictive deceleration sup-
port
When the vehicle approaches
to predictive deceleration sup-
port points registered in the
navigation system, the “Refer-
ence operation range” ( ) of
the ECO Accelerator Guid-
ance ( P.105) on the multi-
information display will be
turned off to encourage the
driver to reduce excessive
acceleration.
The engine braking force will be increased according to the
driving conditions to more effi-
ciently charge the hybrid bat-
tery (traction battery) after the
accelerator pedal is released.
■Predictive SOC control
The following types of control
are performed based on data
such as road and traffic informa-
tion during route guidance by
the navigation system to help
ensure that the vehicle effi-
ciently uses electricity.
When there is a long downhill
slope along the route, the sys-
tem reduces the hybrid bat-
tery (traction battery) level
before reaching the slope to
help ensure charging capacity
for regenerative braking while
traveling downhill.
When traffic congestion is
predicted along the route, the
system helps ensure a certain
battery level before reaching
congested roads to reduce
the frequency of starting the
engine to charge the hybrid
battery (traction battery) due
to low battery levels.
Predictive efficient drive
(vehicles with navigation
system)
*
A
771-4. Hybrid system
1
For safety and security
■Running out of fuel
When the vehicle has run out of fuel
and the hybrid system cannot be
started, refuel th e vehicle with at
least enough gasoline to make the
low fuel level warning light ( P.649)
go off. If there is only a small
amount of fuel, th e 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.)
■Electromagnetic waves
●High voltage parts and cables on
hybrid vehicles incorporate elec-
tromagnetic shielding, and there-
fore emit approximately the same
amount of electromagnetic waves
as conventional gasoline pow-
ered vehicles or home electronic
appliances.
●Your vehicle may cause sound
interference in so me third party-
produced radio parts.
■Hybrid battery (tr action battery)
The hybrid battery (traction battery)
has a limited service life. The lifes-
pan of the hybrid battery (traction
battery) can change in accordance
with driving style and driving condi-
tions.
■Starting the hybrid system in an
extremely cold environment
When the hybrid battery (traction
battery) is extremely cold (below
approximately -22°F [-30°C]) under
the influence of t he outside tem-
perature, it may no t be possible to
start the hybrid system. In this case,
try to start the hyb rid system again
after the temperature of the hybrid
battery increases due to the outside
temperature increase etc.
WARNING
■High voltage precautions
This 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.
●Never touch, disassemble,
remove or replace the high volt-
age parts, cables or their con-
nectors.
●The hybrid system will become
hot after starting as the system
uses high voltage. Be careful of
both the high voltage and the
high temperature, and always
obey the warning labels
attached to the vehicle.
●Never try to open the service
plug access hole located under-
neath the rear seats. The ser-
vice plug is used only when the
vehicle is serviced and is sub-
ject to high voltage.
■Road accident cautions
Observe the following precautions
to reduce the risk of death or seri-
ous injury:
●Pull your vehicle off the road,
shift the shift le ver to P, apply
the parking brake, and turn the
hybrid system off.
●Do not touch the high voltage
parts, cables and connectors.
781-4. Hybrid system
WARNING
●If electric wires are exposed
inside or outside your vehicle,
an electric shock may occur.
Never touch exposed electric
wires.
●If a fire occurs in the hybrid
vehicle, leave the vehicle as
soon as possible. Never use a
fire extinguisher that is not
meant for electric fires. Using
even a small amount of water
may be dangerous.
●If your vehicle needs to be
towed, do so with four wheels
raised. If the wheels connected
to the electric motor (traction
motor) are on the ground when
towing, the motor may continue
to generate electricity. This may
cause a fire. ( P.637)
●Carefully inspect the ground
under the vehicle. If you find
that liquid has leaked onto the
ground, the fuel system may
have been damaged. Leave the
vehicle as soon as possible.
AXAH54L models*
●If a fluid leak occurs, do not
touch the fluid as it may be
strong alkaline electrolyte from
the hybrid battery (traction bat-
tery). If it comes into contact
with your skin or eyes, wash it
off immediately with a large
amount of water or, if possible,
boric acid solution. Seek imme-
diate medical attention.
*: The model code is indicated on
the Certification Regulation
Label. ( P.684)
AXAL54L models*
●Do not touch the battery if liquid
is leaking from or adhering to it.
If electrolyte (carbonic-based
organic electrolyte) from the
hybrid battery (traction battery)
comes into contact with the
eyes or skin, it could cause
blindness or skin wounds. In the
unlikely event that it comes into
contact with the eyes or skin,
wash it off immediately with a
large amount of water, and seek
immediate medical attention.
●If electrolyte is leaking from the
hybrid battery (traction battery),
do not approac h the vehicle.
Even in the unlikely event that
the hybrid battery (traction bat-
tery) is damaged, the internal
construction of the battery will
prevent a large amount of elec-
trolyte from l eaking out. How-
ever, any electrolyte that does
leak out will give off a vapor.
This vapor is an irritant to skin
and eyes and could cause acute
poisoning if inhaled.
●Do not bring burning or high-
temperature items close to the
electrolyte.
The electrolyte may ignite and
cause a fire.
*: The model code is indicated on
the Certificatio n Regulation
Label. ( P.684)
■Hybrid battery (traction bat-
tery)
●AXAL54L models*: Your vehi-
cle contains a sealed lithium-ion
battery.
*: The model code is indicated on
the Certificatio n Regulation
Label. ( P.684)
801-4. Hybrid system
When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks the high voltage current
and stops the fuel pump to mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates,
your vehicle will not restart. To
restart the hybrid system, con-tact 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.
■If a warning light comes on, a
warning message
is displayed,
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
this case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
NOTICE
●Do not get water or foreign
materials in the air intake vent
as this may cause a short circuit
and damage the hybrid battery
(traction battery).
●Do not carry large amounts of
water such as water cooler bot-
tles in the vehicle. If water spills
onto the hybrid battery (traction
battery), the battery may be
damaged. Have the vehicle
inspected by your Toyota
dealer.
●There is a filter installed to the
air intake vent. When the filter
remains noticeably dirty even
after cleaning the air intake
vent, filter cleaning or replace-
ment is recommended. For
information rega rding filter
cleaning or replacement, refer
to P.611.
●If “Maintenance Required for
Traction Battery Cooling Parts
See Owner’s Manual” is shown
on the multi-information dis-
play, the air intake vent and fil-
ter may be clogged. Refer to
P.611for information on how to
clean the air intake vent.
Emergency shut off sys-
tem
Hybrid warning message
902-1. Instrument cluster
*1: These lights turn on when the
power switch is turned to ON to
(Yellow)
Brake system warn-
ing light
*1 ( P.642)
Charging system
warning light
*1
( P.642)
High coolant tempera-
ture warning light
*2
( P.643)
Hybrid system over-
heat warning light
*2
( P.643)
Low engine oil pres-
sure warning light
*2
( P.643)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.643)
(Canada)
Malfunction indicator
lamp
*1 ( P.643)
SRS warning light
*1
( P.644)
(U.S.A.)
ABS warning light*1
( P.644)
(Canada)
ABS warning light*1
( P.644)
(Red/yellow)
Electric power steer-
ing system warning
light
*1 ( P.644)
(Flashes or
illuminates)
PCS warning light*1
( P.645)
(Orange)
LTA indicator
( P.645)
(Flashes)
Intuitive parking assist
OFF indicator
*3 (if
equipped) ( P.646)
(Flashes)
PKSB OFF indica-
tor
*1 (if equipped)
( P.646)
(Flashes)
RCTA OFF indica-
tor
*1 (if equipped)
( P.647)
Slip indicator light
*1
( P.647)
Brake Override Sys-
tem/Drive-Start Con-
trol/PKSB (if
equipped) warning
light
*2 ( P.648)
(Flashes)
Brake hold operated
indicator
*1 ( P.648)
(U.S.A.)
(Flashes)
Parking brake indica-
tor ( P.648)
(Canada)
(Flashes)
Parking brake indica-
tor ( P.648)
Tire pressure warning
light
*1 (if equipped)
( P.649)
Low fuel level warn-
ing light ( P.649)
Driver’s and front pas-
senger’s seat belt
reminder light
( P.649)
Rear passengers’ seat
belt reminder lights (if
equipped) ( P.650)
942-1. Instrument cluster
The units used on the meter and display may differ depending on the target
region.
Hybrid System Indicator
Displays the Hybrid System Indicator ( P.95)
Outside temperature ( P.95)
Clock ( P.97)
Multi-information display
Presents the driver with a variety of driving-related data ( P.103)
Displays warning messages if a malfunction occurs (P.654)
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fu el remaining in the tank
Odometer and trip meter
Odometer:
Displays the total distance th at the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last
Gauges and meters (w ith 4.2-inch display)
The meters display various drive information.
Meter display
A
B
C
D
E
F
G
982-1. Instrument cluster
The display of the speedometer can be selected from two types,
analog or digital. (P.109)
Analog speedometer
The units used on the meter and display may differ depending on the target
region.
Hybrid System Indicator
Displays the Hybrid System Indicator ( P.100)
Speedometer
Displays the vehicle speed
Clock ( P.102)
Fuel gauge
Displays the quantity of fu el remaining in the tank
Engine coolant temperature gauge
Displays the engine coolant temperature
Odometer and trip meter
Odometer:
Displays the total distance th at the vehicle has been driven
Trip meter:
Gauges and meters (with 7-inch display)
The meters display various drive information.
Meter display
A
B
C
D
E
F