Red triangle check engine and car with red explanation Mark on touch screen

Yea... yellow light means floor it, not stop abruptly. I doubt your car knows that though, so that's probably not the reason for the warning lights.

First step is when those lights go on the car stores primary error codes and sub-codes. Any auto parts store can plug in and read the primary error code for free... But sub codes give vital details regarding the problem and you can get some of those error codes with a phone app called Dr. Prius if you buy one of these inexpensive devices: Hybrid battery diagnostic and repair tool for Toyota and Lexus

And if you want all the details you can buy a mini-VCI plug for $25 dollars on Ebay. It comes with a hacked version of Toyota Techstream Diagnostic software that runs on old Windows computers, just don't give it internet access or it will ask Toyota if your software is legit and it won't be and it will be told to go to sleep...

And if you just want the whole situation to go away and write it off as an anomaly and you're feeling lucky, disconnect your 12v battery for 5 minutes and that will reset everything and lights won't come back on until computer notices the problem again. But there won't be any problem if you're lucky...

Also if your 12v battery is getting old and not holding a full charge, replacing it might fix the problem, or at least that's the first step in fixing the problem.

 

Lol @ your location.

Best case scenario is inverter coolant pump. That's like $100 parts/labor to change.

Guessing bad ABS pump (brake actuator) or bad hybrid battery. What was the code?