So many lights

Welcome to PriusChat!!

When was the last time you checked/changed the fluids? (oil, etc.)

It does sound like the HV battery has failed, as the HV fan in on and you can drive/crawl around in turtle mode. Please don't go out and buy a used/reconditioned battery, as that will most likely put you back in the position you're in currently.

If you have an interest in learning more about the issues at hand, find a toyota hybrid compatible obd2 code scanner, most shops have loaners or can scan the vehicle for free, but not all shops have a scanner that is compatible, so try them all and then write down all of the codes found.

If you have some time and money, pick up a OBD2 bluetooth adapter online, and a copy of Dr Prius or Hybrid Assistant. Read this webpage to make sure you purchase a higher quality compatible device : Hybrid battery diagnostic and repair tool for Toyota and Lexus

If you (or a trusted mechanic) has an interest in using the same OBD2 diagnostic software that the dealership uses and in turn will charge you for, then you'll need a mini-vci cable ($20) and a copy of techstream, which also requires a windows device that has a usb port.

Once you have the proper codes (DTCs), post them here for additional guidance including possible DIY solutions.

 

it has to be compatible with the software, and you need to be able to put it in the car.

 

I've seen some dongles that use WiFi rather than Bluetooth. Longer range to reach the desktop?

I'm not sure any of the WiFi ones have J2534 drivers though; that's the kind the Techstream software requires. Maybe they're out there.

 

You could try getting one of those usb extension cables

 

Before jumping into techstream, try the recently purchased OBD2 adapter with Dr Prius or Hybrid Assistant app on the appropriate device.

How loud is the engine growling sound?

 

In case you missed it earlier, you really need to add oil to the car. From the sounds of it (RTOD when cornering and stopping, etc) you are VERY low on oil...…………...

The RTOD, red bars and green bars and fan running all the time are all good indicators that you have a HV battery issue. A bad HV battery makes acceleration almost non-existent. Also the 24 mph issue, lol, can be a good indicator of the battery failing. Unfortunately, this pales in comparison to running the engine with no oil in it...….

 

how much money are you willing to invest in a 15 year old car with almost 300,000 miles?

 

Just to clarify, which OBD2 adapter and App are you using to retrieve these DTCs with?

DTCs P3000, P3019 and P3020 point towards a failed/failing HV battery. There are at least two (2) modules (of 28) that are reporting low voltage (P3019, P3020) and will need to be replaced. There could be other modules that are also on the edge of failing. Though it won't fix the above problem, now would be a great time to clean the HV battery fan in the back of the vehicle, and will get you steps closer to the HV battery at the same time. There are a bunch threads that describe replacing modules, and cleaning the HV fan.

Any idea if this HV battery is the original, and still in an untouched state?

Are you a DIY type of person, or know someone who is? (if unsure, watch any of the 'how to' replace a prius battery module videos)

Assuming you meant DTC U0293, you might find minor relief in this thread : U0293 Lost Comm w/ Hybrid Powertrain Control Module | PriusChat

 

A low 12v battery can confuse the computers causing strange codes. If you are unsure of its condition replace it.

 

Have you measured the voltage at both the 12v battery in the back, and at the jump points under the hood?

You might check the ground strap coming from the 12v battery to the body, sometimes rust can build on the body side.

Here is the workup for DTC U0293 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Repair%20Manual/04pruisr/05/2054m/ciu0293.pdf