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SIENNA_OM_OM45483U_(U)
2-1. Driving proceduresDriving the vehicle............... 214
Engine (ignition) switch (vehicles without a smart
key system)....................... 228
Engine (ignition) switch (vehicles with a smart
key system)....................... 231
Automatic transaxle ............ 238
Turn signal lever ................. 243
Parking brake ...................... 244
Horn .................................... 245
2-2. Instrument cluster and information display
Gauges and meters ............ 246
Indicators and warning lights ................................. 249
Multi-information display ..... 256
2-3. Operating the lights and wipers
Headlight switch .................. 270
Automatic High Beam ......... 277
Fog light switch ................... 284
Windshield wipers and washer ....................... 286
Rear window wiper and washer ....................... 294 2-4. Using other driving systems
Cruise control ..................... 297
Dynamic radar cruise control .............................. 302
Intuitive parking assist ........ 318
Rear view monitor system .............................. 325
Driving assist systems ........ 331
Hill-start assist control ........ 337
PCS (Pre-Collision System) ............................ 340
BSM (Blind Spot Monitor) ............................ 348
2-5. Driving information Cargo and luggage ............. 360
Vehicle load limits............... 368
Winter driving tips ............... 369
Trailer towing (with towing package) .......................... 373
Dinghy towing ..................... 393
2When driving

When driving2
213
SIENNA_OM_OM45483U_(U)
2-1. Driving proceduresDriving the vehicle............ 214
Engine (ignition) switch (vehicles without a smart
key system).................... 228
Engine (ignition) switch (vehicles with a smart
key system).................... 231
Automatic transaxle ......... 238
Turn signal lever .............. 243
Parking brake ................... 244
Horn ................................. 245
2-2. Instrument cluster and information display
Gauges and meters............. 246
Indicators and warning lights .............................. 249
Multi-information display............................ 256
2-3. Operating the lights and wipers
Headlight switch ............... 270
Automatic High Beam ...... 277
Fog light switch ................ 284
Windshield wipers and washer .................... 286
Rear window wiper and washer .................... 294 2-4. Using other driving systems
Cruise control ................... 297
Dynamic radar cruise control ............................ 302
Intuitive parking assist...... 318
Rear view monitor system ........................... 325
Driving assist systems ..... 331
Hill-start assist control ...... 337
PCS (Pre-Collision System).......................... 340
BSM (Blind Spot Monitor).......................... 348
2-5. Driving information Cargo and luggage .......... 360
Vehicle load limits ............ 368
Winter driving tips ............ 369
Trailer towing (with towing package)............. 373
Dinghy towing .................. 393

216 2-1. Driving procedures
SIENNA_OM_OM45483U_(U)
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the
windows may become fogged-up, and the road will be slippery.
● Drive carefully when it starts to rain, because the road surface will be
especially slippery.
● Refrain from high speeds when driving on an expressway in the rain,
because there may be a layer of water between the tires and the road
surface, preventing the steering and brakes from operating properly.
■ Engine speed while driving
In the following conditions, the engine speed may become high while driving.
This is due to automatic up-shifting control or down-shifting implementation
to meet driving conditions. It does not indicate sudden acceleration.
●The vehicle is judged to be driving uphill or downhill
● When the accelerator pedal is released
■ Breaking in your new Toyota
To extend the life of the vehicle, observing the following precautions is rec-
ommended:
●For the first 200 miles (300 km):
Avoid sudden stops.
● For the first 500 miles (800 km):
Do not tow a trailer.
● For the first 1000 miles (1600 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.
■ Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of
brake system needs bedding-down of the brake shoes periodically or when-
ever the parking brake shoes and/or drum are replaced. Have your Toyota
dealer perform the bedding down operation.

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2-3. Operating the lights and wipers
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When driving
SIENNA_OM_OM45483U_(U)
●
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestri-
ans to the high beam. Therefore, you should consider turning the high
beam on or off manually rather than relying on the Automatic High Beam
system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or ca mera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is lifting or tilting, due to a flat tire, a trailer being towed etc.
• The Automatic High Beam indicator is flashing.
• The high beam and low beam are repeatedly being switched between in an abnormal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.

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2-4. Using other
driving systems
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When driving
SIENNA_OM_OM45483U_(U)
CAUTION
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■ Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting
in death or serious injury.
●In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
● When your vehicle is towing a trailer

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2-4. Using other
driving systems
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When driving
SIENNA_OM_OM45483U_(U)
CAUTION
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
●In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
● At entrances to expressways
● When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
● When an approach warning buzzer is heard often
● When your vehicle is towing a trailer

316 2-4. Using other driving systems
SIENNA_OM_OM45483U_(U)
CAUTION
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles
are in front of you.
As the sensor may not be able to correctly detect these types of vehicles,
the approach warning ( P. 308) will not be activated, and a fatal or serious
accident may result.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving
● Vehicles with small rear ends (trailers with no load on board etc.)
● Motorcycles traveling in the same lane
■ Conditions under which the vehicle -to-vehicle distance control may
not function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
● When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
● When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage compartment, etc.)
● When the road curves or when the lanes are narrow
● When steering wheel operation or your position in the lane is unstable
● When the vehicle ahead of you decelerates suddenly

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2-4. Using other
driving systems
2
When driving
SIENNA_OM_OM45483U_(U)
CAUTION
■When the sensor may not be corr ectly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations.
● When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
● When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage compartment etc.)
● Vehicles that cut in suddenly
● Vehicles with small rear ends (trailers with no load on board etc.)
● Motorcycles traveling in the same lane
■ Handling the radar sensor
Observe the following to ensure the pre-collision system can function effec-
tively:
●Keep the sensor and front grille clean at all times.
Clean the sensor and front grille with a soft cloth so you do not mark or
damage them.
● Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by your Toy-
ota dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor, grille or surrounding
area.
● Do not modify or paint the sensor and grille cover.