2010 TOYOTA SIENNA steering

332 3-4. Using the hands-free phone system (for cellular phone)
■Steering wheel telephone switches
Vo l u m e
The voice guidance volume
cannot be adjusted using
this button.
Hands-free phone system
off/ends a call/refuses a call
Hands-free phone system
on/starts a call
Press: Voice command sys-
tem on
Press and hold: Voice com-
mand system off
■ Microphone

426
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
Battery Maintenance-free. ( P. 450)
Brake fluid At the correct level? ( P. 446)
Engine coolant At the correct level? ( P. 444)
Engine oil At the correct level? ( P. 439)
Exhaust system No fumes or strange sounds?
Power steering fluid At the correct level? ( P. 448)
Radiator/condenser/hoses Not blocked with foreign matter?
(P. 446)
Washer fluid Is there sufficient washer fluid?
(P. 453)
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Scheduled Maintenance
Guide” or “Owner’s Manual Supp lement”. It is recommended that
any problem you notice should be brought to the attention of your
Toyota dealer or qualified service shop for advice.

427
4-2. Maintenance
4
Maintenance and care
Vehicle interior
ItemsCheck points
Accelerator pedal • Moves smoothly (without uneven
pedal effort or catching)?
Automatic transmission “Park”
mechanism • Can the vehicle be held securely
on an incline with the shift lever in
P?
Brake pedal • Moves smoothly?
• Does it have appropriate clear-
ance and correct amount of free
play?
Brakes • Not pull to one side when
applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints • Move smoothly and lock
securely?
Indicators/buzzers • Function properly?
Lights • Do all the lights come on?
• Headlights aimed correctly?
Parking brake • Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts • Does the seat belt system oper-
ate smoothly?
• Are the belts undamaged?
Seats • Do the seat controls operate
properly?
Steering wheel • Moves smoothly?
• Has correct free play?
• No strange noises?

431
4-3. Do-it-yourself maintenance
4
Maintenance and care
ItemsParts and tools
Fuses ( P. 474)• Fuse with same amperage rating
as original
Light bulbs ( P. 486)• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Power steering fluid
level ( P. 448)• Automatic transmission fluid
DEXRON
 II or III
• Rag or paper towel
• Funnel (used only for adding power steering fluid)
Radiator and condenser (P. 446) 
Tire inflation pressure (
P. 463) • Tire pressure gauge
• Compressed air source
Washer fluid
(P. 453) • Water washer fluid containing
antifreeze (for winter use)
• Funnel

438
4-3. Do-it-yourself maintenance
Engine compar tment
Power steering fluid reservoir( P. 448)
Windshield and rear window
washer fluid tank ( P. 453)
Engine oil filler cap ( P. 440)
Engine oil level dipstick ( P. 439)Engine coolant reservoir
( P. 444)
Brake fluid reservoir ( P. 446)
Fuse box ( P. 474)
Battery ( P. 450)
Electric cooling fans
Condenser ( P. 446)
Radiator ( P. 446)

448 4-3. Do-it-yourself maintenance
Power steering fluid■ Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in cold temperatures. (Fluid tem-
perature, 140 F - 175F [60C - 80 C])
Cold: Engine has not been run for about 5 hours. (Room tempera- ture, 50 F - 85F [10C - 30C])
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the reservoir cap by turning it counterclockwise and
wipe the dipstick clean.
Reinstall the reservoir cap.
Remove the reservoir cap again and look at the fluid level.
Fluid type Automatic transmission fluid DEXRON II or III
Items• Rag or paper towel
• Funnel (used only for adding power steering fluid)
STEP1
STEP2
STEP3
STEP4

449
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■
Checking the fluid level
Take care, as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■ After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or
damage.

482 4-3. Do-it-yourself maintenance
13 WSH20 AWindshield washer and rear win-
dow washer
14 HTR 10 A Air conditioning system
15 ECU-IG 10 AIntuitive parking assist system, rear
view monitor system, multiplex
communication system, multiport
fuel injection system/sequential
multiport fuel injection system, anti-
lock brake system, traction control
system, vehicle stability control
system, shift lock control system,
dynamic laser cruise control sys-
tem, seat heaters, power back
door, moon roof, multi-information
display, auto anti-glare inside rear
view mirror, power windows, power
outlets (115 V), power third seat,
driving position memory system
16 PANEL 10 AAir conditioning system, seat heat-
ers, audio system, navigation sys-
tem, power sliding door, power
back door, trip information display,
rear window defogger, emergency
flashers, instrument panel lights,
steering switch lights
17 TAIL 10 AStop/tail lights, license plate lights,
parking lights, side maker lights
18 S/ROOF 25 A Moon roof
19 AC INV 15 A Power outlets (115 V)
20 FR DEF 15 A Windshield wiper de-icer
21 AM1 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, starter system
FuseAmpereCircuit