Possible dead beattery?

hard to say without testing. do you have a volt meter?

 

I'd 2nd that you need to check the voltage of the 12v auxiliary battery before and after start. Sounds like the alternator is boosting the voltage up to make your ancillaries work okay. So your year old battery either needs a good charge or its shot.

Posted via the PriusChat mobile app.

 

na.
could be your cousin jumping it improperly though

 

what do you mean by "everything starts to die"? My main screen on my 2003 does not like the cold and will stay blank until it warms up. Sometimes I have to restart the car to get it to display a picture even after its warmed up. And many times it will "twitch" until it is warmed up.

 

Hmm, im at a lose for that one. How did autozone check the battery? It has to be put under some kind of load. Try connecting another battery to your prius with jumper cables and see if it still does it. If it does than its not the battery.

 

Perhaps not the battery, but the battery connections. Inspect them for corrosion, and make sure they are tight and well-connected to the battery posts. Voltage measurements are VERY helpful analysis tools here. From your symptoms, it sounds like you have a poor connection between a healthy battery and the car electrical system. There is an old-fashioned battery terminal cleaner tool (cylindrical steel bristle brush) available at most car parts stores... this is a classic problem which shows up at the onset of cold weather/winter in many parts of the country. Good luck!