Red Triangle, VSC, ( ! ), P0446, P2601

After a lot of driving today the red triangle, VSC, and exclamation lights came on. Checked codes, p2601 which was there for a while prior, and p0446. Oil was pretty low when these came on. Right tire is pretty bald and needs replacing, hoping that's the culprit, but have a bit of a drive tomorrow and want to rule out anything else. After starting the car it doesn't want to shift into anything but neutral, until I turn it off and back on again. If I clear the lights, they come back on almost immediately, within a minute of the ICE running, even if parked.

 

replaced it about a year ago, coolant is flowing in the tank. also just checked 12v battery and it's good

 

Can't get the car to shift into anything other than N now and I'm hesitant to let it sit and drain the HV to see if the ICE will kick on.

 

AC won't even come on. guessing seized engine

 

had a fairly recent HV replacement from green bean

 

nothing's moving. AC won't even turn on. engine's seized. going to try unseizing by removing spark plugs and putting oil directly on the pistons and turning with a breaker bar but I'm expecting replacement.

 

Is this any different than clearing the codes with OBD?

 

It might be worth adding that the lights came on at the exact moment I was making a 90 degree right turn without slowing down enough

 

OEM pump ordered from Toyota. No idea if there's a ground leak in the HV or how to check but my gut says that's not it considering how long ago it was installed and the fact that I was driving a lot today with little oil. It might also be worth nothing that the lights came on at the exact moment I made a sharp right turn at too quick a speed, which given that balding tire, might explain the VSC light. I also ran over some wood fragments on the highway at 60-70mph the other day with that tire so maybe there's some integral damage the system is trying to protect me from?

 

12v read 12.4 on the MFD diagnostic screen

 

I was able to force start by holding the button for a minute but it doesn't seem to be working again after that initial attempt. Then tried the lock/unlock trick and it cleared the rest of the lights but CE and red triangle and engine still won't come on. This method also yields no results on subsequent attempts.

 

pressed the brake down very hard and was able to get it started, drove around the block, lights quickly came back on, after parking it then wouldn't come on again. going to have someone stand behind to see if the brake lights come on to rule out brake light switch.