If the light is flashing, then you have a problem with one of your sensors (the computer is not receiving a sensor signal), then you'll have to take your car to any Toyota dealer to check/repair your tire pressure sensors.
If the tire light keeps coming on constantly, it's probably because at least one of your tires has a leak, take your vehicle to a tire shop to check/fix/replace your tires.
Those sensors are very sensitive, so even if the tire had lost just a little air the light could come on, don't freak out you should be okay, but the light is very annoying!
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.
When the light comes on it's telling you to read the engine diagnostic codes.
The gas cap was loose on my '04 Sienna. How's that for simple...
Voltage, temperature, and oil pressure.
it means you need to check the engine
The check gauges light comes on when one of the gauges is out of its safe range. It could be the alternator over or under charging, oil pressure low, or the engine overheating.The check gauges light comes on when one of the gauges is out of its safe range. It could be the alternator over or under charging, oil pressure low, or the engine overheating.
That light notifies you that one of the gauges is out of its normal parameter. Check the temp (overheating), the voltage (not charging) and the oil pressure gauge (low or no oil pressure).
Tire pressure warning light
There are many reasons why a check engine light could come on following a timing belt change. When the check engine light comes on there is a code stored in the computer to tell you why the light came on. Most auto parts stores will read the code for free.
Low tire pressure on the 2011
its prob the smallest problem in the world like but the biggest in the Toyota sienna 01 like just get the wires checked it should be fine like don't forget to check the spare. theres a sensor in it as well.
why do check engine light comes on