2023 TOYOTA SIENNA HYBRID warning light

561-1. For safe use
Exhaust gas precau-
tions
Harmful substance to the
human body is included in
exhaust gases if inhaled.
WARNING
Exhaust gases contain harmful
carbon monoxide (CO), which is
colorless and odorless. Observe
the following precautions.
Failure to do so may cause
exhaust gases to enter the vehicle
and may lead to an accident
caused by light-headedness, or
may lead to death or a serious
health hazard.
■Important points while driving
●Keep the back door closed.
●If you smell exhaust gases in
the vehicle even when the back
door is closed, open the side
windows and have the vehicle
inspected at your Toyota dealer
as soon as possible.
■When parking
●If the vehicle is in a poorly venti-
lated area or a closed area,
such as a garage, stop the
hybrid system.
●Do not leave the vehicle with
the hybrid system operating for
a long time.
If such a situation cannot be
avoided, park the vehicle in an
open space and ensure that
exhaust fumes do not enter the
vehicle interior.
●Do not leave the hybrid system
operating in an area with snow
build-up, or where it is snowing.
If snowbanks build up around
the vehicle while the hybrid sys-
tem is operating, exhaust gases
may collect and enter the vehi-
cle.
■Exhaust pipe
The exhaust system needs to be
checked periodically. If there is a
hole or crack caused by corro-
sion, damage to a joint or abnor-
mal exhaust noise, be sure to
have the vehicle inspected and
repaired by your Toyota dealer.

621-2. Child safety
■When installing a child
restraint system to a front
passenger seat
For the safety of a child, install a
child restraint system to a rear
seat. When installing the child
restraint system to a front pas-
senger seat is unavoidable,
adjust the seat as follows and
install the child restraint system.
 Raise the seatback as much
as possible.
 Move the front seat fully rear-
ward.
 If the head restraint interferes
with the child restraint system
installation and the head
restraint can be removed,
remove the head restraint.
Otherwise, put the head
restraint in the upper most
position.
When using a child
restraint systemWARNING
■When using a child restraint
system
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
●Never install a rear-facing child
restraint system on the front
passenger seat even if the “AIR
BAG OFF” indicator light is illu-
minated. In the event of an acci-
dent, the force of the rapid
inflation of the front passenger
airbag can cause death or seri-
ous injury to the child if the rear-
facing child restraint system is
installed on the front passenger
seat.
●A forward-facing child restraint
system may be installed on the
front passenger seat only when
it is unavoidable. A child
restraint system that requires a
top tether strap should not be
used in the front passenger seat
since there is no top tether strap
anchor for the front passenger
seat.

631-2. Child safety
1
For safety and security
A child restraint system for a
small child or baby must itself be
properly restrained on the seat
with the lap portion of the
lap/shoulder belt.
■Installing child restraint
system using a seat belt
(child restraint lock func-
tion belt)
Install the child restraint system
in accordance to the operation
WARNING
●A forward-facing child restraint
system may be installed on the
front passenger seat only when
it is unavoidable. When install-
ing a forward-facing child
restraint system on the front
passenger seat, raise the seat-
back as much as possible,
move the seat to the rearmost
position, even if the “AIR BAG
OFF” indicator light is illumi-
nated.
If the head restraint interferes
with the child restraint system
installation and the head
restraint can be removed,
remove the head restraint.
●Do not allow the child to lean
his/her head or any part of
his/her body against the door or
the area of the seat, front or rear
pillars, or roof side rails from
which the SRS side airbags or
SRS curtain shield airbags
deploy even if the child is
seated in the child restraint sys-
tem. It is dangerous if the SRS
side airbags and curtain shield
airbags inflate, and the impact
could cause death or serious
injury to the child.
●When a booster seat is
installed, always ensure that the
shoulder belt is positioned
across the center of the child’s
shoulder. The belt should be
kept away from the child’s neck,
but not so that it could fall off the
child’s shoulder.
●Use a child restraint system
suitable to the age and size of
the child and install it to the rear
seat.
●If the driver’s seat interferes
with the child restraint system
and prevents it from being
attached correctly, attach the
child restraint system to the
right-hand rear seat.
●Adjust the front passenger seat
so that it does not interfere with
the child restraint system.
Child restraint system
fixed with a seat belt

841-4. Hybrid system
■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.470)
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 3.1 gal.
[11.9 L, 2.6 Imp. gal.], when the
vehicle is on a level surface. This
value may vary whe n the vehicle is
on a slope. Add ext ra fuel when the
vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on
Hybrid Electric Vehicles incorpo-
rate electromagnetic shielding,
and therefore emi t approximately
the same amount of electromag-
netic waves as conventional gaso-
line powered 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.
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 console box. 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.
●If electric wires are exposed
inside or outside your vehicle,
an electric shock may occur.
Never touch exposed electric
wires.
●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.

861-4. Hybrid system
of cooling the hybrid battery
(traction battery).
If the vents are blocked, it may
interfere with the cooling of the
hybrid battery (traction battery).
If input/output of the hybrid battery
(traction battery) becomes limited
and the distance that the vehicle
can be driven using the electric
motor (traction motor) is reduced,
the fuel economy may be reduced.
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
NOTICE
■Hybrid battery (traction bat-
tery) air intake vents
●Make sure not to block the air
intake vents with anything, such
as a seat cover, plastic cover, or
luggage. The input/output of the
hybrid battery (traction battery)
may be restricted, leading to a
reduction in hybrid battery (trac-
tion battery) output and a mal-
function.
●Periodically clean the air intake
vents to prevent them from clog-
ging. ( P.440)
●Do not get water or foreign
materials in the air intake vents
as this may cause a short circuit
and damage the hybrid battery
(traction battery).
Emergency shut off sys-
tem
Hybrid warning message

91
2
2
Vehicle status information and indicators
Vehicle status informa-tion and indicators
2-1. Instrument cluster
Warning lights and indica-tors ............................... 92
Gauges and meters (with 4.2-inch display) ........... 97
Gauges and meters (with 7- inch display) .............. 101
Multi-information display .................................. 104
Head-up display .......... 118
Energy monitor/consump- tion screen................. 122

922-1. Instrument cluster
2-1.Instrument cluster
For the purpose of explanation, the following illustrations display all
warning lights and indicators illuminated.
With 4.2-inch display
The units used on the meters and some indicators may differ dep ending on
the target region.
With 7-inch display
Warning lights and indicators
The warning lights and indicators on the instrument cluster,
center panel and outside rear view mirrors inform the driver
of the status of the vehicle’s various systems.
Instrument cluster

932-1. Instrument cluster
2
Vehicle status information and indicators
The units used on the meters and some indicators may differ depending on
the target region.
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
(U.S.A.)
Brake system warning
light
*1 (  P.464)
(Canada)
(Red)
Brake system warning
light
*1 ( P.464)
(Yellow)
Brake system warning
light
*1 ( P.464)
Charging system warning
light
*1, 2 (  P.464)
High coolant temperature
warning light
*2 (  P.465)
Hybrid system overheat
warning light
*2 (  P.465)
Low engine oil pressure
warning light
*2 (  P.465)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.465)
(Canada)
Malfunction indicator
lamp
*1 ( P.465)
SRS warning light
*1
(  P.466)
(U.S.A.)
ABS warning light*1
(  P.466)
(Canada)
ABS warning light*1
(  P.466)
(Red/yel-
low)
Electric power steering
system warning light
*1
(  P.466)
(Flashes
or illumi- nates)
PCS warning light*1
(  P.467)
(Orange)
LTA indicator ( P.467)
Intuitive parking assist
OFF indicator
*3 (if
equipped) ( P.467)
PKSB OFF indicator
*1 (if
equipped) ( P.468)
RCTA OFF indicator
*1 (if
equipped) ( P.468)
RCD OFF indicator (if
equipped) ( P.468)
Slip indicator
*1 (  P.469)
Brake Override Sys-
tem/Drive-Start Con-
trol/PKSB (if equipped)
warning light
*2 (  P.469)
(Flashes)
Brake hold operated indi-
cator
*1 ( P.469)
(U.S.A.)
(Flashes)
Parking brake indicator
(  P.470)