Can I drive 34km to the dealer with hybrid system warning light on?

No idea. Maybe it'll be fine. Or not.

Can't tell anything without knowing what the codes are. (Scantools like Autel AP200 are pretty inexpensive, even Dr Prius with a generic adapter would likely give you something).

Posted via the PriusChat mobile app.

 

You'll be fine in Australia I'm guessing this time of year it's extremely hot I've driven my generation too which is just like yours same screen on it and everything for a month or two in 95° weather without an inverter pump working at all You can't beat on the car 34 miles when you get out of the car and touch the hoses of the inverter pump if that interests you they won't be seriously hot unless you're running 70 mph all the way for that 34 miles so I don't know what kind of speeds you're going to need to run for that 34 miles what kind of road you're on or anything but generally that's what you're looking at If you want to confirm your inverter pump is bad Just turn the car on make it ready get out put the hood up and behind the left side headlight there's this little pancake pump with two 3/4 or so size hoses One coming up and one going out the side put your hand or a drinking straw or a stick on that pump it should be vibrating You can open the jug and look in the jug and see if you can see the water moving which you probably won't sometimes the pump will be humming and it won't be moving water It no longer is driving the impeller it's like a mag drive fish pond pump a cheap version thereof or your washing machine drain pump a little bit differently shaped. And one of my generation two Prius like yours I put a 12 volt water pump that's used to cool the Italian scooters It's a little tiny thing It's been there for 4 years now never a hiccup I'll probably put one on the next car that needs one these things cost $70 they're on Italian scooters that go all over the world in India there's millions of them on the road vespa and Aprilia piaggio corp they also make airplanes

 

It's winter in Australia.

 

Yeah I've been many years since I've hung out in the bush in like 1975 anyway whatever it is you're in winter you're good You can drive there at a hundred miles an hour I have done that here in North Carolina in 50° weather for a weeks this I do know so if you're in winter you almost have no issues You could drive the car until spring or summer unless like I say you're driving 300 mi trips every time you get in the car and even then in that cold the weather I bet you won't even see any throttling back of your charging of your HD battery in those temps I can't guarantee it but I'll do it in a minute My car hasn't broken down from doing it for months at a time so I would expect yours wouldn't under similar conditions but I'm in no position to offer guarantees and warranties.

 

No but it's hot there where you are and you're driving any kind of way the inverter fluid will get hot and it will roll back the charging applied to the HV battery which will make some of the things happen that you had going on more than likely now you don't have that problem of the charging throttling back at temperature till it gets extremely hot.