Page 625 of 860

625
3-8. Other interior features
3
Interior features
SIENNA_U (OM45477U)
Safety Connect LE
D light Indicators
When the engine switch is turned to the “ON” position (vehicles with-
out a smart key system) or the “ENGINE START STOP” switch is
turned to IGNITION ON mode (vehicl es with a smart key system), the
red indicator light comes on for 2 seconds then turns off. Afterward,
the green indicator light comes on, indicating that the service is
active.
The following indicator light patter ns indicate specific system usage
conditions:
● Green indicator light on = Active service
● Green indicator light flashing = Safety Connect call in process
● Red indicator light (except at v ehicle start-up) = System malfunc-
tion (contact your Toyota dealer)
● No indicator light (off) = Safety Connect service not active
Safety Connect services
■ Automatic Collision Notification
In case of either airbag deployment or severe rear-end collision,
the system is design ed to automatically call the response center.
The responding agent receives th e vehicle’s location and attempts
to speak with the vehicle occupant s to assess the level of emer-
gency. If the occupants are unable to communicate, the agent
automatically treats the call as an emergency, contacts the nearest
emergency services provider to describe the situation, and
requests that assistance be sent to the location.
Page 629 of 860
Maintenance and care4
629
SIENNA_U (OM45477U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 630
Cleaning and protecting the vehicle interior .......... 635
4-2. Maintenance Maintenance requirements .................. 639
General maintenance....... 642
Emission inspection and maintenance (I/M)
programs ........................ 646
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 647
Hood ................................ 651
Positioning a floor jack ..... 653
Engine compartment ........ 655
Tires ................................. 672
Tire inflation pressure ...... 683
Wheels ............................. 687
Air conditioning filter......... 690
Wireless remote control/electronic key
battery ............................ 693
Checking and replacing fuses .............................. 696
Light bulbs........................ 709
Page 634 of 860
634 4-1. Maintenance and care
SIENNA_U (OM45477U)
NOTICE
■Cleaning the exterior lights
● Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surface of the lights.
● Do not apply wax on the surfaces of the lights.
Wax may cause damage to the lenses.
■ Detachable antenna installation and removal precautions
● Before driving, ensure that the antenna is installed.
● When the antenna is removed, such as before entering an automatic car
wash, make sure to store it in a suitable place so as not to lose it. Also,
before driving, make sure to reinstall the antenna in its original position.
■ When using an automatic car wash (vehicles with rain-sensing wind-
shield wipers)
Set the wiper switch to the off position. If the wiper switch is in “AUTO”, the
wipers may operate and the wiper blades may be damaged.
Page 637 of 860

637
4-1. Maintenance and care
4
Maintenance and care
SIENNA_U (OM45477U)
NOTICE
■
Cleaning detergents
● Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration o\
f
leather surfaces.
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
Page 644 of 860
644 4-2. Maintenance
SIENNA_U (OM45477U)
ItemsCheck points
Indicators/buzzers • Do the indicators and buzzers
function properly?
Lights • Do all the lights come on?
• Are the headlights aimed cor-
rectly?
Parking brake • Does the parking brake lever or
pedal move smoothly?
• When parked on a slope with the parking brake on, is the vehicle
securely stopped?
Seat belts • Do the seat belts operate
smoothly?
• The seat belts should not be dam- aged.
Seats • Do the seat controls operate
properly?
Steering wheel • Does the steering wheel rotate
smoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange sounds coming from the steering
wheel.
Page 648 of 860
648 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
ItemsParts and tools
Engine oil levelP. 657)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 696)• Fuse with same amperage rating
as original
Light bulbs (P. 709)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser (P. 664)
Tire inflation pressure ( P. 683)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 671)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
Page 651 of 860
651
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
Hood
Release the lock from the inside of the vehicle to open the hood.
Pull the hood release lever.
The hood will pop up slightly.
Pull up the auxiliary catch
lever and lift the hood.
Hold the hood open by insert-
ing the supporting rod into the
slot.
STEP1
STEP2
STEP3
Page 666 of 860
666 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking
efficiency. Use only newly opened brake fluid.
CAUTION
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious proble\
m.