Little or no heat from heater/defrost if t-stat is stuck open.
Engine overheats if t-stat is stuck closed.
it means you need to check the engine
I have a Toyota as well and it means that it has been activated for the passenger. when the seat feels any weight in it, it will activate the airbag.
It means the "Immobilizer" or "anti theft system" is activated
Trouble code P0172 means: System Too Rich (Bank 1)
Trouble code P0441 means: Evaporative Emission System Incorrect Purge Flow
it means you havent started you car, part of the motor-starter-block for anti theft.
Toyota is made in dang Japan. For all you dummies who think its made in the USA its just manufactured over here retards which means put together here.
Code P1130 Means air/fuel sensor circuit range/performance (bank 1 sensor 1)
If the engine does not get warm either, it means that the thermostat stock open. You need to replace it or fix the old one.
It means at least one of your tires pressure is too deflated. Check the pressure and inflat the tires to the correct pressure and rest the light.
According to the owners manual for my 2004 Sienna, all it means is that an oil change is due. You can google how to reset the light, in case the guys in the shop forget to.
sienna means like a red color