trailer TOYOTA SIENNA 2019 Owners Manual (in English)

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SIENNA_OM_OM08025U_(U)
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3-4. Adjusting the steering wheel and mirrors
Steering wheel .................. 177
Inside rear view mirror....... 179
Outside rear view mirrors ............................. 181
3-5. Opening, closing the windows and moon roof
Power windows ................. 184
Quarter windows ............... 187
Moon roof .......................... 189
4-1. Before driving Driving the vehicle ............. 194
Cargo and luggage............ 203
Vehicle load limits ............. 209
Trailer towing (with towing package) ..... 210
Dinghy towing.................... 224
4-2. Driving procedures Engine (ignition) switch (vehicles without a
smart key system) ........... 225
Engine (ignition) switch (vehicles with a smart
key system) ..................... 228
Automatic transaxle........... 233
Turn signal lever................ 239
Parking brake .................... 240 4-3. Operating the lights
and wipers
Headlight switch ................ 241
Automatic High Beam ........ 246
Fog light switch .................. 251
Windshield wipers and washer ............................. 252
Rear window wiper and washer ............................. 256
4-4. Refueling Opening the fuel tank cap................................... 258
4-5. Using the driving support systems
Toyota Safety Sense P ...... 261
PCS (Pre-Collision system) ............................ 267
LDA (Lane Departure Alert with steering control) ....... 279
Dynamic radar cruise control.............................. 289
BSM (Blind Spot Monitor) ........................... 303
• The Blind Spot Monitor function.......................... 307
• The Rear Cross Traffic Alert function ................. 310
Intuitive parking assist ....... 315
Driving assist systems ....... 323
4-6. Driving tips Winter driving tips .............. 328
4Driving

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4Driving
4-1. Before drivingDriving the vehicle ............. 194
Cargo and luggage ........... 203
Vehicle load limits ............. 209
Trailer towing (with towing package) ..... 210
Dinghy towing ................... 224
4-2. Driving procedures Engine (ignition) switch (vehicles without a
smart key system) ........... 225
Engine (ignition) switch (vehicles with a smart
key system) ..................... 228
Automatic transaxle........... 233
Turn signal lever................ 239
Parking brake .................... 240 4-3. Operating the lights
and wipers
Headlight switch ................ 241
Automatic High Beam ....... 246
Fog light switch ................. 251
Windshield wipers and washer ............................ 252
Rear window wiper and washer ............................ 256
4-4. Refueling Opening the fuel tank cap .................................. 258
4-5. Using the driving support systems
Toyota Safety Sense P ..... 261
PCS (Pre-Collision system) ........................... 267
LDA (Lane Departure Alert with steering control) ....... 279
Dynamic radar cruise control ............................. 289
BSM (Blind Spot Monitor)........................... 303
• The Blind Spot Monitor function ......................... 307
• The Rear Cross Traffic Alert function ................. 310
Intuitive parking assist....... 315
Driving assist systems ...... 323
4-6. Driving tips Winter driving tips ............. 328

SIENNA_OM_OM08025U_(U)
1954-1. Before driving
4
Driving
■When starting off on a uphill
The hill-start assist control is available. ( P. 323)
■ Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the win-
dows may become fogged-up, and the road will be slippery.
● Drive carefully when it starts to rain, because the road surface will be espe-
cially slippery.
● Refrain from high speeds when driving on an expressway in the r ain,
because there may be a layer of water between the tires and the road sur-
face, preventing the steering and brakes from operating properl y.
■ Engine speed while driving
In the following conditions, the engine speed may become high w hile 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
■ Restraining the engine out put (Brake Override System)
● When the accelerator and brake pedals are depressed at the same time, the
engine output may be restrained.
● A warning message is displayed on the multi-information display while the
system is operating. ( P. 474, 481)
■ Breaking in your new Toyota
To extend the life of the vehicle, observing the following prec autions is recom-
mended:
● 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 wh enever the
parking brake shoes and/or drum are replaced. Have your Toyota dealer per-
form the bedding down operation.
■ Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability
of the correct fuel. ( P. 518)

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SIENNA_OM_OM08025U_(U)
4-1. Before driving
4
Driving
Cargo and luggage
Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load ca pacity) - (Total weight of occupants)
Steps for Determini ng Correct Load Limit 
(1) Locate the statement “The co mbined weight of occupants and
cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s
placard.
(2) Determine the combined weight of the driver and passengers t hat
will be riding in your vehicle.
(3) Subtract the combined weight of the driver and passengers fr om
XXX kg or XXX lbs.
(4) The resulting figure equals the available amount of cargo an d lug-
gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there wil l be
five 150 lb passengers in your vehicle, the amount of available
cargo and luggage load capaci ty is 650 lbs. (1400 - 750 (5150) =
650 lbs.)
(5) Determine the combined weight of luggage and cargo being loa ded
on the vehicle. That weight may n ot safely exceed the available
cargo and luggage load capac ity calculated in Step 4.
(6) If your vehicle will be towing a trailer, load from your tra iler will be
transferred to your vehicle. Consult this manual to determine h ow
this reduces the available cargo and luggage load capacity of y our
vehicle. ( P. 516)
Take notice of the following information about storage precau-
tions, cargo capacity and load:
Capacity and distribution

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4-1. Before driving
4
Driving
Vehicle load limits
◆Total load capacity (vehicle capacity weight): P. 516
Total load capacity means the co mbined weight of occupants, cargo
and luggage.
◆Seating capacity
Without second center seat: 7 occupants (Front 2, Rear 5)
With second center seat: 8 occupants (Front 2, Rear 6)
Seating capacity means the max imum number of occupants whose
estimated average weight is 1 50 lb. (68 kg) per person.
◆TWR (Trailer Weight Rating): P. 214, 516
TWR means the maximum gross trai ler weight (trailer weight plus
its cargo weight) that your vehicle is able to tow.
◆Cargo capacity
Cargo capacity may increase or decrease depending on the weight
and the number o f occupants.
■Total load capacity and seating capacity
These details are also described on the tire and loading inform ation label.
(  P. 429)
Vehicle load limits include total load capacity, seating capaci ty,
TWR (Trailer Weight Rati ng) and cargo capacity.
WARNING
■Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the tires, but also degrade steering
and braking ability, res ulting in an accident.

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SIENNA_OM_OM08025U_(U)
4-1. Before driving
Trailer towing (with towing package)
Contact your Toyota dealer for further information about additi onal
requirements such as a towing kit, etc.
■GCWR (Gross Combination Weight Rating)
The maximum allowable gross
combination weight. The gross
combination weight is the sum
of the total vehicle weight
(including the occupants, cargo
and any optional equipment
installed on the vehicle) and the
weight of the trailer being towed
(including the cargo in the
trailer).
Your vehicle is designed primarily as a passenger-and-load-car-
rying vehicle. Towing a trailer can have an adverse impact on
handling, performance, braking, durability, and fuel consump-
tion. For your safety and the safety of others, you must not ov er-
load your vehicle or trailer. You must also ensure that you are
using appropriate towing equipm ent, that the towing equipment
has been installed correctly a nd used properly, and that you
employ the requisi te driving habits.
Vehicle-trailer stability and braking performance are affected by
trailer stability, brake performance and setting, trailer brake s,
the hitch and hitch systems (if equipped).
To tow a trailer safely, use extreme care and drive the vehicle in
accordance with your trailer’s characteristics and operating
conditions.
Toyota warranties do not apply to damage or malfunction
caused by towing a trailer for commercial purposes.
Towing related terms

SIENNA_OM_OM08025U_(U)
2114-1. Before driving
4
Driving
■GVWR (Gross Vehicle Weight Rating)
The maximum allowable gross
vehicle weight. The gross vehi-
cle weight is the total weight of
the vehicle. When towing a
trailer, it is the sum of the vehi-
cle weight (including the occu-
pants, cargo and any optional
equipment installed on the vehi-
cle) and the tongue weight.
■GAWR (Gross Axle Weight Rating)
The maximum allowable gross
axle weight. The gross axle
weight is the load placed on
each axle (front and rear).
Front GAWR
Rear GAWR

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SIENNA_OM_OM08025U_(U)
4-1. Before driving
■TWR (Trailer Weight Rating)
The maximum allowable gross
trailer weight. The gross trailer
weight is the sum of the trailer
weight and the weight of the
cargo in the trailer.
TWR is calculated assuming
base vehicle with one driver,
one front passenger, towing
package, hitch and hitch sys-
tems (if required).
Additional optional equipment, passengers and cargo in the vehicle will
reduce the trailer weight rating so as not to exceed GCWR, GVWR and
GAWR.
If the gross trailer weight exceeds 3000 lb. (1360 kg), it is r ecommended
to use a trailer with 2 or more axles.
■
Unbraked TWR (Unbraked Trailer Weight Rating)
The trailer weight rating for tow-
ing a trailer without a trailer ser-
vice brake system.
■Tongue Weight
The load placed on the trailer
hitch ball. ( P. 215)
(With brakes)
(Without brakes)

SIENNA_OM_OM08025U_(U)
2134-1. Before driving
4
Driving
●The gross trailer weight must never exceed 3500 lb. (1585 kg).
●The gross combination weight must never exceed the GCWR
described below.
2WD models: 8900 lb. (4037 kg)

AWD models: 8990 lb. (4078 kg)
●The gross vehicle weight must
never exceed the GVWR indi-
cated on the Certification Label.
● The gross axle weight on each
axle must never exceed the
GAWR indicated on the Certifi-
cation Label.
● If the gross trailer weight is over the unbraked TWR, trailer s ervice
brakes are required.
● If the gross trailer weight is over 2000 lbs. (907 kg), a sway control
device with sufficient capacity is required.
Weight limits
: The towing package is required. Toyota does not recommend towing with this vehicle without the towing
package.

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4-1. Before driving
Confirm that the gross trailer weight, gross combination weight, gross
vehicle weight, gross axle weight and tongue weight are all within the
limits.
■GCWR
2WD models: 8900 lb. (4037 kg)
AWD models: 8990 lb. (4078 kg)
■TWR
3500 lb. (1585 kg)
■Unbraked TWR
1000 lb. (450 kg)
GCWR, TWR and Unbraked TWR
: These models meet the tow-vehicle trailering requirement of SA E Interna-
tional per SAE J2807.
The towing package is required.
Toyota does not recommend towing with this vehicle without the towing
package.