Wayne, all last summer hidden charging worked fine.

When it began to get really cold here (32-45) hidden charging began to be intermittant, again in the daytime only.

Lately, hidden charging is almost non-existant, except for night, when it always works.

The possability of it being linked to the headlights has me intrigued......
I'll start using my headlights during my afternoon commute and see if this charging comes back on. I REALLY hate it not working. I'll spend my 1st 22 miles on curvy, hilly country roads and just when I need to jump to 60-65MPH freeway speeds it's just began charging from 2/3 depletion, fighting freeway hills.

As we know, freeway acceleration & speeds + mostly discharged SOC = poor FE for miles on end.

Efficient drivers do it better.
1003 miles a tank personal record. 74MPG calculated. HCH1 CVT