The following may indicate that your vehicle is overheating.
Correction procedures
If you do not see steam: Carefully lift the hood.
If a large amount of coolant leaks, immediately contact your Toyota dealer.
Water can be used in an emergency if coolant is unavailable.
The fans operate when the air conditioning system is turned on immediately after a cold start. Confirm that the fans are operating by checking the fan sound and air flow. If it is difficult to check these, turn the air conditioning system on and off repeatedly. (The fans may not operate in freezing temperatures.)
If the fans are operating: Have the vehicle inspected at the nearest Toyota dealer.
WARNING When inspecting under the hood of your vehicle Observe the following precautions. Failure to do so may result in serious injury such as burns.
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NOTICE When adding engine coolant Add coolant slowly after the engine has cooled down sufficiently. Adding cool coolant to a hot engine too quickly can cause damage to the engine. To prevent damage to the cooling system Observe the following precautions:
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Symptom confirmation and diagnostic trouble code
HINT:
The diagnostic system in the SIENNA has various
functions.
The first function is the Diagnostic Trouble Code
(DTC) check. A DTC is a code stored in the ECU
memory whenever a malfunction in the signal circuits
to the ECU occurs. In a DTC check, a previous
malfunction's DTC can be ...
Using a Bluetooth®
Phone
The hands-free system is a function that allows you to use your
cellular phone without touching it.
This system supports Bluetooth®. Bluetooth® is a wireless data
system that allows the cellular phone to wirelessly connect to
the hands-free system and make/receive calls.
Before making a p ...
No Sound can be Heard from Speakers
INSPECTION PROCEDURE
1 CHECK AUDIO SETTINGS
Enter the sound adjustment screen by pressing the
"SOUND" switch on the AUDIO display.
Set volume, fader, and balance to the initial values and
check that sound is normal.
OK:
Audio system returns to normal.
HINT:
Sou ...