Where is the fuse located??

The fuse for the clock is located in the fuse box.

I believe the Sienna has 2 fuse boxes, one under the driver's side of the dashboard and one in the engine compartment. Check the dome fuse.

Al the fuses look good. Could it be the clock??

Fuses can be defective. Try a new one OF THE SAME SIZE. No fooling around because you don't have time to go get the right kind. Or, test the existing one with a meter.

You have not mentioned whether or not there is a problem with the clock, you just asked where the fuses are.

The clock is on 2 different circuits: The actual clock is on a circuit that is always hot - I believe that this is the dome circuit. The other circuit for the clock is the display circuit, and I believe this is the same circuit as the instruments or the radio.

If the clock display does not work, then check power coming to the clock.

And small car "ATO Style" fuses can crack and go open at the ends where the two plug-in contacts meet the fuse element - and not visibly "blow". They'll look perfect to the naked eye, but not to the electrons trying to go through. Use a test light.

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I *knew* SOMEONE was going to say this!

Too bad you beat me to it! ;)

Sorry, I couldn't resist.

Reminds me of one night when we were watching a movie about a city guy who ends up with a dog sled team, and during one of the scenes where the dogs are running through the snow, my wife asked why the dogs wore little booties. I told her "because big booties would fall off."

;-)

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BWAHAHAHAHA!

LOL!!!!