2021 TOYOTA SIENNA HYBRID auxiliary battery

4797-2. Steps to take in an emergency
7
When trouble arises
tion display, it may indicate a mal-
function. Immediately stop the
vehicle and contact your Toyota
dealer.
•“Braking Power Low”
• “12-Volt Battery Charging System
Malfunction”
• “Oil Pressure Low”
●If any of the following messages
are shown on the multi-informa-
tion display, 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.
• “Hybrid System Stopped”
• “Engine Stopped”
●If “Low Auxiliary Battery See
Owner’s Manual” is shown
• When the display goes off after
several seconds
*:
Maintain the hybri d system opera-
tion for more than 15 minutes and
charge the 12- volt battery.
• When the display does not go off:
Start up the hybrid system using the
procedures for “If the 12-volt battery
is discharged” ( P.506)
*: Displays for about 6 seconds
●If “Maintenance Required for Trac-
tion Battery Cooling Parts See
Owner’s Manual” is shown, the fil-
ter may be clogged, the air intake
vent may be blocked, or there may
be a gap in the duct. Therefore,
perform the following correction
procedure.
• If the air intake vent or filter of the hybrid battery (traction battery)
are dirty, perform the procedures
on P.443to clean them.
• If the warning message is shown when the air intake vent and filter
of the hybrid battery (traction bat-
tery) are not dirty, have the vehicle
inspected at your Toyota dealer.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level may be low.
Check the level of the engine oil, and add engine oil if necessary.
This message may be displayed if
the vehicle is stopped on a slope.
Move the vehicle to a level surface
and check if the message disap-
pears.
■If “Hybrid System Stopped
Steering Power Low” is dis-
played
This message is displayed if the
hybrid system is stopped while driv-
ing.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using
more force than usual.
■If “Hybrid System Overheated
Output Power Reduced” is
shown
The message may be shown when
driving under severe operating con-
ditions. (For example, when driving
up a long steep hill or driving up a
steep hill in reverse.)
Coping method: P.514
■If “Traction Battery Needs to be
Protected Refrain from the Use
of N Position” is shown
This message may be displayed
when the shift lever is in N.
As the hybrid battery (traction bat-
tery) can not be charged when the
shift lever is in N, shift the shift lever
to P when the vehicle is stopped.
■If “Traction Battery Needs to be
Protected Shift into P to
Restart” is shown
This message is displayed when the
hybrid battery (traction battery)
charge has becom e extremely low
because the shift lever has been left
in N for a certain amount of time.
When operating the vehicle, shift to
P and restart the hybrid system.
■If “Shift to P Before Exiting
Vehicle” is shown
Message is displayed when the
driver’s door is opened without turn-

4817-2. Steps to take in an emergency
7
When trouble arises
■Warning buzzer
 P.473
NOTICE
■“High Power Consumption
Power to Climate Temporar-
ily Limited” is frequently
shown
There is a possible malfunction
relating to the charging system or
the 12-volt battery may be deteri-
orating. Have the vehicle
inspected by your Toyota dealer.
■If “Low Auxiliary Battery See
Owner’s Manual” is displayed
frequently
The 12-volt battery may have
deteriorated.
As the battery m ay discharge in
this state when left unattended,
have the battery inspected by
your Toyota dealer.
If you have a flat tire
(vehicles without
spare tire)
Your vehicle is not
equipped with a spare tire,
but instead is equipped with
an emergency tire puncture
repair kit. A puncture
caused by a nail or screw
passing through the tire
tread can be repaired tem-
porarily using the emer-
gency tire puncture repair
kit. (The kit contains a bottle
of sealant. The sealant can
be used only once to tempo-
rarily repair one tire without
removing the nail or screw
from the tire.) Depending on
the damage condition of the
flat tire, it may not be able to
repaired with the emer-
gency tire puncture repair
kit. ( P.482)
After temporarily repairing
the tire with the kit, have the
tire repaired or replaced by
your Toyota dealer.

Alphabetical Index577
Intuitive parking assistFunction ............................... 308
Warning message ................ 311
J
JackPositioning a floor jack ......... 415
Vehicle-equipped jack .. 483, 492
Jack handle ..................... 483, 492
Jam protection function Moon roof ............................. 204
Power back door .................. 157
Power windows .................... 201
Sliding doors ........................ 143
K
Keyless entrySmart key system................. 164
Wireless remote control ....... 130
Keys ......................................... 128 Battery-saving function......... 165
Electronic key ....................... 128
If the electronic key does not operate properly ................. 504
If you lose your keys ............ 502
Key number plate ................. 128
Keyless entry................ 130, 164
Mechanical key .................... 131
Power switch ........................ 231
Replacing the battery ........... 447
Warning buzzer .................... 165
Wireless remote control key . 130
Knee airbags ............................. 41
L
Lane Tracing Assist (LTA) ..... 275 Operation ............................. 275
Warning messages .............. 285
Language (multi-information dis- play) ............................... 115, 541 LATCH anchors ........................68
Lever
Auxiliary catch lever .............413
Hood lock release lever ........413
Shift lever .............................238
Turn signal lever . ..................242
Wiper lever ...................254, 257
License plate lights Light switch...........................248
Replacing light bulbs ............451
Wattage ................................526
Light bulbs Replacing .............................451
Wattage ................................526
Lights Automatic High Beam system...........................................250
Fog light switch .....................254
Headlight switch ...................248
Interior lights .........................364
Personal lights ......................364
Rear interior light ..................364
Replacing light bulbs ............451
Turn signal lever . ..................242
Vanity lights ..........................374
Wattage ................................526
Lock steering column ............232
LTA (Lane Tracing Assist) .....275 Operation..............................275
Warning messages ...............285
Luggage compartment light ................................152, 156Wattage ................................526
M
Maintenance Do-it-yourself maintenance ..411
General maintenance ...........407
Maintenance data .................518
Maintenance requirements ...406
Malfunction indicator lamp ....467
Menu icons ..............................106