Recently we have had heat wave conditions with the equivalent of plus 110 degree F weather. I noticed that for the first time my inverter coolant temperature reached 140 degrees F. I have had some weird messages and the yellow triangle pop up when the physical brakes cut in. The message comes and goes so quickly all we could read was something about "ID Block". No codes were thrown up. I believe this is due to heat "stress". I am considering obtaining a small radiator/heat exchanger, installing it in the space before the radiator and diverting the inverter coolant to it for extra cooling. Is there any impediment or down side to this?
Possible and done. Additional inverter cooling | PriusChat Go to first post in above linked thread. SCH-I535
Thanks for the link! Has it made a big difference to your car? I was thinking of just letting natural air flow do the cooling.
Yeah sorry! I was very tired and didn't read the other thread sufficiently. Thanks again for resurrecting it for me.