I came here specifically for the HV range issue. 900 miles on my car. Purchased 15 days ago. I had approximately 280 miles of range for HV mode. Then, i filled it up...which took 1.6 gallons of gasoline. The range after fill-up was....280 miles. It never changed. Ive driven it ~ 200 miles since, and maybe 5 of those miles were non-EV mode. I was thinking, perhaps Honda calculates average mpg for HV mode ONLY when using gasoline. For instance, i wanted to see how fast it was in sports mode, so I accelerated briskly the other day to about 70mph. I then switched back to EV mode. Maybe it calculated that average MPG ONLY while accelerating fast and tried to predict the range based on my driving pattern in sport mode? Previously, i used HV mode when driving 160 miles round trip, day 2 of getting my car...and it was 90% highway miles. I averaged around 48 mpg at 75 mph.
Perhaps my low range is due to the few sport mode accelerations...which would have effected my range, had i kept driving the same pattern? Confused really...