Have Toyota Questions? Ask a Mechanic for Answers ASAP
Thanks for posting
The first thing to always check when a Prius exhibits some warning lights is to check the 12 volt auxiliary battery in the trunk, unless it was replaced recently and is known to be good, this battery controls the voltage for most of the hybrid computers, it must show more than 11.8 volts if less either charge or replace it, in most cases it will not accept a re charge if more than four years old.
You mentioned the check engine light was on, this indicates that the engine control computer has detected a fault with it's control system or there is a communication malfunction between the hybrid and engine computers.
The check engine light on will also trigger hybrid codes so the first thing I would recommend to you is to get the engine codes from the computer, most of the larger autoparts chain stores can help you do this or get the trouble codes for you at no charge (expt CA), After you have the check engine light diagnosed and have some code number information I can help to figure out what should be done and how to proceed, In most cases once the check engine light problem is fixed the other lights will turn off and return operation to normal.
It all depends on what the diagnostic codes indicate, that's the starting point and don't forget to check the 12 volt battery. If in doubt replace it.
Ok, let me know about the battery.
Ok, then we need to look a little deeper, those lights that you mentioned earlier come on for a reason and there are trouble codes in one or more computers, I would recommend that you have it scanned for codes with a diagnostic scasnner that is capable of accessing the hybrid system computer as well as the engine control computer.