2015 Prius Check hybrid system, won’t start

2015 Prius that was running great until this morning. Went to start it and I could not get it out of accessory mode. Tried pushing harder on brake pedal and cycling it many times and never would get the ready light. I believe the start button usually lights up green when brake pedal is pushed but I don’t get that green light. Only orange light when accessory turns on. I don’t have the red triangle of doom. I have brake lights that come on so don’t think it would be brake position sensor. Had 12v battery checked and it’s good. I pulled all the fuses and they are fine and all big fuses appear to be okay. I held remote up to start button with Toyota emblem up and tried that with both remotes to no avail. Decided to load it on a trailer and while preparing to push it on I tried to start one more time and I get the ready light somehow. Went ahead and loaded on trailer to take it somewhere but is there anything I can check to see what’s going on.

since it started, I do have check hybrid system in Notification Center and check engine light.

Ordered a obd reader and should be here soon to get codes.

 

yup I double checked all the connections, even wiggled everything under the hood to make sure. I took the battery to two places yesterday to have it checked bc I was really hoping that was the issue but both said it was good. One said it was on last quarter of life but currently good. I tried to jumpstart the car with my truck to no avail.

isn’t the light on the push start button supposed to turn green when you push on the pedal? Mine is not lighting up at all when pedal is pushed until it goes into accessory mode then it’s orange.

 

attempted to start it again this morning and I’m not getting it ready light anymore again.

here’s the lights that are on

 

Battery showed 12.2 volts when I checked it. I took it to O’Reilly and Autozone and they both tested it good. Testing on 12v setting on multimeter

 

Had former Toyota mechanic tell me to try cleaning cooling fan for batteries so going to try that later today also.

 

also would it have started with jumping it off my truck if the battery was bad?

 

Ok that’s on this afternoon list also. Will put them up when I get them

 

That was with car off on multimeter. The two places load tested it with their machines. When jumped with truck was reading 12.7

 

Update!!! Got home and cleaned the fan screen and battery cooling fan really well and boom I get my green light and it goes right into ready mode without issue. Knock on wood, that was easy fix.

checked for codes and it showed no fault codes at all which is weird. Even past history only showed from when I pulled fuses and checked them all.

You’d think Toyota would have made that screen accessible from the seat side and not have to completely disassemble the rear of the car.

 

Well it happened again. No check hybrid system this time though and no codes. Wife took it to a meeting and when she went to leave it happened again. No green light when brake pedal pushed to get into ready mode. I’m at a loss. Any ideas ? It worked fine for about 5 tries before she left. Does the ignition switch in these ever go bad ?