2023 TOYOTA SIENNA HYBRID automatic transmission

3TABLE OF CONTENTS
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2
3
4
5
6
7
8
9
4-1. Before drivingDriving the vehicle......... 210
Cargo and luggage ....... 217
Vehicle load limits ......... 220
Trailer towing (without towing package) ..................... 221
Trailer towing (with towing package) ..................... 222
Dinghy towing ............... 232
4-2. Driving procedures Power (ignition) switch .. 234
EV drive mode .............. 239
Hybrid transmission ...... 241
Turn signal lever ........... 245
Parking brake ................ 246
Brake Hold .................... 249
4-3. Operating the lights and wipers
Headlight switch ............ 251
AHB (Automatic High Beam) .................................... 253
Fog light switch ............. 257
Windshield wipers and washer......................... 257
Rear window wiper and washer......................... 260
4-4. Refueling Opening the fuel tank cap.................................... 262
4-5. Using the driving support
systems
Toyota Safety Sense 2.0 265
PCS (Pre-Collision System) .................................... 270LTA (Lane Tracing Assist)
.................................... 278
RSA (Road Sign Assist) 288
Dynamic radar cruise control with full-speed range ... 291
BSM (Blind Spot Monitor) .................................... 302
Intuitive parking assist ... 312
RCD (Rear Camera Detec- tion) function ................ 320
PKSB (Parking Support Brake) .......................... 324
Parking Support Brake func- tion (static objects) ...... 329
Parking Support Brake func- tion (rear-crossing vehicles).................................... 332
Driving mode s elect switch
.................................... 334
Driving assist systems ... 335
4-6. Driving tips Hybrid Electric Vehicle driv-ing tips ......................... 342
Winter driving tips .......... 344
5-1. Using the ai r conditioning
system and defogger
Front automatic air condition- ing system ................... 348
Re ar automatic air condition-
i n

g system ................... 358
Heated steering wheel/seat heaters/seat ventilators 361
5-2. Using the interior lights Interior lights list ............ 363
4Driving
5Interior features

209
4
4
Driving
Driving
4-1. Before drivingDriving the vehicle....... 210
Cargo and luggage ..... 217
Vehicle load limits ....... 220
Trailer towing (without tow- ing package).............. 221
Trailer towing (with towing package) ................... 222
Dinghy towing ............. 232
4-2. Driving procedures Power (ignition) switch 234
EV drive mode ............ 239
Hybrid transmission .... 241
Turn signal lever ......... 245
Parking brake .............. 246
Brake Hold .................. 249
4-3. Operating the lights and wipers
Headlight switch .......... 251
AHB (Automatic High Beam)........................ 253
Fog light switch ........... 257
Windshield wipers and washer....................... 257
Rear window wiper and washer....................... 260
4-4. Refueling Opening the fuel tank cap.................................. 2624-5. Using the dr
iving support
systems
Toyota Safety Sense 2.0 .................................. 265
PCS (Pre-Collision System) .................................. 270
LTA (Lane Tracing Assist) .................................. 278
RSA (Road Sign Assist) .................................. 288
Dynamic radar cruise con- trol with full-speed range
.................................. 291
BSM (Blind Spot Monitor) .................................. 302
Intuitive parking assist . 312
RCD (Rear Camera Detec- tion) function .............. 320
PKSB (Parking Support Brake) ........................ 324
Parking Support Brake func- tion (static objects)
.................................. 329
Parking Support Brake function (rear-crossing
vehicles) .................... 332
Driving mode select switch .................................. 334
Driving assist systems. 335
4-6. Driving tips Hybrid Electric Vehicle driv-ing tips ....................... 342
Winter driving tips........ 344

2444-2. Driving procedures
lever to the S position. The shift
ranges can be selected by oper-
ating the shift lever. Changing
the shift range allows restriction
of upper limit of the gears to be
used, preventing unnecessary
upshifting and enabling the level
of engine braking force to be
selected.
1Upshifting
2 Downshifting
The selected shift range, from S1 to
S6, will be displayed on the multi-
information display.
The initial shift range in S mode
is set automatically to S4 or S5
according to vehicle speed.
■S mode
●You can choose from 6 levels of
accelerating force and engine
braking force.
●A lower shift range will provide
greater accelerating force and
engine braking force than a higher
shift range, and t he engine revolu-
tions will also increase.
●To prevent the e ngine from over-
revving, upshifti ng may automati-
cally occur when the shift range is
4 or lower.
●When the shift range is 4 or lower,
holding the shift lever toward “+”
sets the shift range to 6.
■Downshifting restriction warn-
ing buzzer
To help ensure safety and driving
performance, dow nshifting opera-
tion may sometimes be restricted. In
some circumstances, downshifting
may not be possible even when the
shift lever is opera ted. (A buzzer will
sound twice.)
■If the “S” indi cator does not
come on or the “D” indicator is
displayed even after shifting the
shift lever to S
This may indicate a malfunction in
the transmission system. Have the
vehicle inspected by your Toyota
dealer immediately. (In this situa-
tion, the transmission will operate in
the same manner as when the shift
lever is in D.)

4617-2. Steps to take in an emergency
7
When trouble arises
The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.
The hybrid system warning
message is shown on the
multi-information display and
the vehicle does not move. 
The vehicle makes an abnor-
mal sound.
From the front (2WD models)
Release the parking brake.
Turn automatic mode off.
( P.247)
From the front (AWD models)
Use a towing dolly under the
rear wheels.
NOTICE
■To prevent damage to the
vehicle when towing using a
wheel-lift type truck
When raising the vehicle, ensure
adequate ground clearance for
towing at the opposite end of the
raised vehicle. Without adequate
clearance, the vehicle could be
damaged while being towed.
■To prevent damage to the
vehicle when towing with a
sling-type truck
Do not tow with a sling-type truck,
either from the front or rear.
■Recreational towing (behind
motor home, etc.)
Never dinghy tow your vehicle to
prevent causing serious damage
to the AWD system and transmis-
sion. ( P.232)
Situations when it is nec-
essary to contact dealers
before towing
Towing with a wheel-lift
type truck

Alphabetical Index573
EV drive mode ........................ 239
Event data recorder (EDR)......... 8
EV indicator .............................. 80
F
Flat tire ............................ 480, 490Tire pressure warning system........................................... 424
Floor mats ................................. 32
Fluid Brake ............................ 417, 522
Hybrid transmission.............. 521
Rear differential .................... 521
Washer ................................. 418
Fog lights Replacing light bulbs ............ 448
Switch................................... 257
Front door courtesy lights Wattage ................................ 524
Front doors .......... ................... 132
Front passenger’s seat belt reminder light ....................... 471
Front passenger occupant clas- sification system .................... 51
Front seat heaters .................. 361
Front seats .............................. 170 Adjustment ........................... 170
Cleaning ............................... 399
Correct driving posture ........... 33
Driving position memory....... 179
Head restraints ..................... 183
Memory recall function ......... 181
Power easy access system .. 179
Seat heaters ......................... 361
Seat position memory .......... 179
Seat ventilators .................... 361
Front side marker lights ........ 251 Light switch .......................... 251
Replacing light bulbs ............ 448
Front turn signal lights Replacing light bulbs ............ 448
Turn signal lever................... 245 Fuel
Capacity ...............................518
Fuel gauge .....................97, 101
Information ......... ..................526
Refueling ..............................262
Type .............................518, 526
Warning light ........................470
Fuel consumption information Average fuel consumption ....125
Current fuel consumption .....125
Fuel filler door.........................263 If the fuel filler door cannot be opened ...............................501
Refueling ..............................262
Fuel gauge.........................97, 101
Fuses .......................................446
G
Garage door opene r ...............388
Gauges ..............................97, 101
Glove box ................................367
Grocery bag hooks .................387
H
Headlights ...............................251 AHB (Automatic High Beam) 253
Light switch...........................251
Replacing light bulbs ............448
Head restraints .......................183
Head-up display ......................118 Driving information display area...........................................118
Driving support system display area ....................................120
Head-up display switch ........119
Hybrid System Indicator .......121
Navigation system-linked display ...........................................118
Pop-up display......................120
Settings ................................119
Head-up display switch..........119

Alphabetical Index581
Tire inflation pressure display function............................... 424
Tire pressure warning system ........................................... 424
Uniform Tire Quality Grading 531
Warning light ........................ 470
Tools .............. .................. 481, 490
Top tether strap ... ..................... 71
Total load capacity ......... 217, 220
Towing Dinghy towing....................... 232
Towing eyelet ....................... 490
Trailer sway control .............. 336
Trailer towing................ 221, 222
Toyota Safety Sense .............. 265 AHB (Automatic High Beam) 253
Dynamic radar cruise control with full-speed range .......... 291
LTA (Lane Tracing Assist).... 278
PCS (Pre-Collision System) . 270
RSA (Road Sign Assist) ....... 288
TRAC (Traction Control) ........ 336
Traction battery (Hybrid battery) ................................................. 83Hybrid battery (traction battery) air intake vents ..................... 85
Location.................................. 83
Specification ......................... 518
Warning messages ................ 86
Traction Control (TRAC) ........ 336
Traction motor (e lectric motor)79
Trailer sway control ............... 336
Trailer towing .................. 221, 222
Transmission Driving mode select switch... 334
Hybrid transmission.............. 241
Trip meters ....... ................. 97, 101
Turn signal lights Replacing light bulbs ............ 448
Turn signal lever................... 245U
USB charging ports ................379
V
Vanity lightsVanity lights ..........................374
Wattage ................................524
Vanity mirrors .........................374
Vehicle data recordings .............7
Vehicle identification number517
Vehicle Stability Control (VSC) ...............................................336
Ventilators (seat ventilators) .361
VSC (Vehicle Stab ility Control)
...............................................336
W
Warning buzzers Approach warning ................298
Brake hold ............................469
Brake Override System ........469
Brake system ........................464
Downshifting .........................244
Drive-Start Control ................469
Electric power steering .........466
High coolant temperature .....465
Hybrid system overheat ........465
Intuitive parking assist OFF indi- cator ...................................467
Intuitive parking assist ..........312
Low engine oil pressure .......465
LTA (Lane Traci ng Assist) ....278
LTA indicator ........................467
Open door ............................136
Open hood............................136
Open window........................203
PKSB OFF indicator .............468
Pre-collision warn ing ............270
RCD OFF indicator ...............468
RCTA (Rear Cross Traffic Alert)