I have a 2006 prius with 364k miles. Triangle thing came on, few days later it shutdown on me

It's always good to find out what the warning lights mean soon as they come on... Waiting till the car dies entirely turns less expensive repairs into more expensive. Any auto parts store can plug into your car and read the error code / red triangle... You can also buy an OBD2 reader for $20 that allows you to use your phone to read codes/diagnose your problem. Learn more here about which one to buy: Hybrid battery diagnostic and repair tool for Toyota and Lexus That's the least expensive way to get started. Other option is to get it towed to a mechanic with Prius Hybrid experience (stay away from the con-games they play at Toyota dealerships) even though even a reasonable mechanic might not look much further than the mileage on the car to tell you you're done with it. But maybe you'll get lucky and have an easy fix?

 

probably not.

how many miles/years have you owned her?

 

please keeps informed, all the best!

 

Maybe your car is out of oil