Indicator light for a 2003 Toyota Sienna.

I have a 1999 Sienna toyota but my flickering light when car on..

Have you had the computer scanned for trouble codes yet ?

Refer to your owner's manual, it will be listed there, every vehicle is different. Sounds like possible low coolant light.

CHANGE THE BRAKE SENSOR BEHIND THE BRAKE PADEL IT A SWITCH

The indicator light means that the van's computer has detected an error(s)

Many auto parts stores will plug in a reader into the port under the steering wheel and tell you the error codes for free. These codes begin with P0 ,,, Look up the codes you get on the net. We have seen just about all of them with our 2001.

Get the codes first - then go from there.

That light means that you are setting the tire pressure guage. there is nothing wrong with the van.

The brake fluid level in your master cuylinder reservoir is low.

I hope you did not purchase your Toyota used; one of the worst scams around is selling used vehicles with missing or useless air bags.  The replacement cost on these is in the upper 3 digits. Because of the possibility of triggering the air bag by accident, I don't advise that someone not trained should attempt to troubleshoot these.    

The warning light that looks like a pot or kettle with arrows is the "Low tire pressure warning light*" I found the answer on the Toyota web site by registering, logging in, entering my model and searching the owners manuals for warning lights.

Hi,

I have not come accross a P2225 error code on a Toyota (Sienna). Best I can gather is this error indicates "NOx Sensor Heater Sense Circuit Intermittent (Bank 2)". on an OBDII Code Reader.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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