What does it mean when you turn on the car and the master warning comes up with the triangle with the exclaimation point on the third picture of the car?

Master Warning: An exclamation point inside a triangle lets you know there's a problem in the engine function. This could be as simple as a loose fuel cap, an open or improperly secured trunk or door, or other problem.

This is the master warning light. It is a signal that some thing needs checking on the vehicle. Are there any other lights or messages on the dashboard? The fault can be something as simple as a door not closed properly to something more serious. Please comment with more information if you have any and I'll try and give you a more accurate answer.

If it's an exclamation point inside a triangle, it's called a master warning symbol. This is the Master Warning Light symbol. If this light is on, there will likely be text displayed as well on the instrument panel, or another warning light. Look for text in particular. It could very well point out something as serious as low oil pressure. If the engine is not running, you can't very well check your gauges, but you may have lost all oil pressure or overheated the engine. Recommend you consult a mechanic familiar with your model.

could mean anything from your windshield washer fluid is low to a bulb is out on the car..im pretty sure its just a warning light, u have to start up the power in the car (ACC) but not actually turning the engine..then use the button on the end of the blinker wand to access the "check control" this should tell you whats up

The Triangle indication:
Description: MASTER WARNING LIGHT.
The battery ECU has a self-diagnosis system. If the computer, High Voltage (HV) battery system or the components are not working properly, the ECU carries out a diagnosis to detect the malfunction, and illuminates the master warning light in the combination meter together with the HV system warning indicator on the multi information display.
NOTE:
The master warning light illuminates when the HV battery system fails and it blinks when in inspection mode.

This the hybrid master warning light, which means the system has detected a malfunction, there are many causes that turn the light on, there are about 24 computers involved, the best advise I can come up with is that you have the toyota dealer check this and diagnose it, this may also still be under the powertrain or hybrid vehicle warranty

this one normally indicates a brake warning lamp.......the first thing i would check is that the brake fluid level is ok in the master cylinder. as your brake pads wear out, they will draw fluid from the master cylinder, this is normal, and as lond as you dont have any abnormal noises then just top up the fluid with NEW brake fluid

I have a yellow triangle with a ? on my dash what does this mean

This most likely is not the cause of the car failing unless it is caused by a bigger electrical problem.

The yellow triangle with an "!" point in the center is the ASR/EDL indicator, Anti Slip Regulator. If it flashes while driving it just means the anti-slip has been activated. It will stay lit if the system has been manually switched off or if it is malfunctioning. A malfunction would not affect the car's running other than you have no anti slip function. This is an option.

The triangle with an exclaimation mark in the middle is the Master Warning Light . I havn't had time to check out exactly what it is but is is covered in the service reminders part of the owners manual. Google " 2005 prius warning lights . In the first result , you will find a link to toyotapartsandservice.com where you will find owners manual's etc. ( in english )