
308
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
WARNING
■When the sensor may not be correct ly 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.
● If the sensor needs to be replaced, contact your Toyota dealer.

SIENNA_OM_OM08007U_(U)
3134-5. Using the driving support systems
4
Driving
■The Blind Spot Monitor function is operational when
●The BSM main switch is set to on
● Vehicle speed is greater than approximately 10 mph (16 km/h).
■ The Blind Spot Monitor function will detect a vehicle when
●A vehicle in an adjacent lane overtakes your vehicle.
● Another vehicle enters the detection area when it changes lanes.
■ Conditions under which the Blind Spot Monitor function will not detect a
vehicle
The Blind Spot Monitor function is not designed to detect the following types
of vehicles and/or objects:
● Small motorcycles, bicycles, pedestrians etc.
*
●Vehicles traveling in the opposite direction
● Guardrails, walls, signs, parked vehicles and similar stationary objects
*
●Following vehicles that are in the same lane*
●Vehicles driving 2 lanes across from your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■ Conditions under which the Blind Spot Monitor function may not func-
tion correctly
●The Blind Spot Monitor function may not detect vehicles correctly in the fol-
lowing conditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and
the vehicle that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip
in the road etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from your vehicle
• When the vehicle that enters the detection area is traveling at about the
same speed as your vehicle
• When there is a significant difference in height between your vehicle and
the vehicle that enters the detection area
• Directly after the BSM main switch is set to on
• When towing a trailer
• When items such as a bicycle carrier ar e installed on the rear of the vehi-
cle

316
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
■Conditions under which the Rear Cross Traffic Alert function may not
function correctly
The Rear Cross Traffic Alert function may not detect vehicles correctly in the
following conditions:
● When ice or mud etc. is attached to the rear bumper
● During bad weather such as heavy rain, fog, snow etc.
● When multiple vehicles approach continuously
● Shallow angle parking
● When a vehicle is approaching at high speed
● When parking on a steep incline, such as hills, a dip in the road etc.
● Directly after the BSM main switch is set to on
● When towing a trailer
● Vehicles that the sensors cannot detect
because of obstacles

600
SIENNA_OM_OM08007U_(U)
9-1. Specifications
Maintenance data (fuel, oil level, etc.)
*1: Unladen vehicle
*2: The model code is indicated on the Certification Label. For details, see“Vehicle identification” below.
*3: The towing package is required.Toyota does not recommend towing with this vehicle without the towing
package.
Dimensions and weights
Overall length 200.2 in. (5085 mm)
Overall width 78.1 in. (1985 mm)
Overall height*1GSL30L-PRZSHA*268.7 in. (1745 mm)
Others69.5 in. (1765 mm)
Wheelbase 119.3 in. (3030 mm)
Front and rear tread 67.7 in. (1720 mm)
Vehicle capacity weight
(Occupants + luggage)
GSL30L-PFZDHA*21380 lb. (625 kg)
GSL30L-PFZEHA*21235 lb. (560 kg)
GSL30L-PFZQHA*21145 lb. (520 kg)
GSL30L-PRZEHA*21355 lb. (615 kg)
GSL30L-PRZSHA*21265 lb. (575 kg)
GSL30L-PRZQHA*21290 lb. (585 kg)
GSL35L-PFZEHA*21210 lb. (545 kg)
GSL35L-PFZQHA*21100 lb. (500 kg)
Trailer Weight Rating
(TWR)
(Trailer weight +
cargo weight)
(with towing package
*3)
Without brake 1000 lb. (450 kg)
With brake3500 lb. (1585 kg)

667Alphabetical index
SIENNA_OM_OM08007U_(U)
Tachometer ................................ 88
Tail lightsLight switch ........................... 242
Replacing light bulbs ................... 528, 530, 531
Wattage ................................ 608
Talk switch
*............................. 405
Telephone switch
*.................. 384
Theft deterrent system Alarm ...................................... 77
Engine immobilizer system ..... 75
Tire inflation pressure ............. 504 Maintenance data ................. 606
Warning light ......................... 547
Tire pressure warning system
Function ................................ 497
Initializing .............................. 497
Installing tire pressure warning valves and
transmitters......................... 497
Registering ID codes ............ 498
Tire pressure warning reset switch ........................ 497
Warning light ......................... 547
Warning message ................. 558 Tires
Chains .................................. 318
Checking............................... 496
Glossary ............................... 618
If you have a flat tire ..... 570, 572
Inflation pressure .................. 504
Information............................ 612
Replacing.............................. 572
Rotating tires ........................ 496
Size....................................... 606
Snow tires ............................. 317
Tire identification number ..... 614
Tire pressure warning system .......... ...................... 497
Uniform Tire Quality Grading .............................. 616
Warning light......................... 547
Tools ......................................... 575
Total load capacity .................. 600
Towing Dinghy towing ....................... 224
Emergency towing ................ 539
Trailer towing ........................ 210
Traction control ....................... 297
TRAC (Traction Control) Function ................................ 297
TRAC OFF switch................. 298
Trailer towing ........................... 210
Trip meter ................................... 88
Turn signal lights Replacing light bulbs........... 525, 526, 529, 531
Turn signal lever ................... 240
Wattage ................................ 608
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