Rule out the EVSE by using the stock 120V unit immediately after such a failure.
If it fails on both you've determined it's either 1) car or 2) house power
Since you're familiar with the issues that happen with poor grid power, this is likely not the case - I would guess car needs to go in for service - drive it to the shop with those error messages on screen so they have it with computer info in hand. 12V reset will erase the logs.
Coolant level would throw a different error message - service high voltage charging system, which sounds like you're not getting.
Your coolant level is ok, but not ideal. It should be at the black label, but it will go down over time with evaporation.
If it fails on both you've determined it's either 1) car or 2) house power
Since you're familiar with the issues that happen with poor grid power, this is likely not the case - I would guess car needs to go in for service - drive it to the shop with those error messages on screen so they have it with computer info in hand. 12V reset will erase the logs.
Coolant level would throw a different error message - service high voltage charging system, which sounds like you're not getting.
Your coolant level is ok, but not ideal. It should be at the black label, but it will go down over time with evaporation.
