Two problems related to transmission slip out of gear have been reported for the 2003 Honda Civic Hybrid. The most recently reported issues are listed below.
There is a shuttering in the transmission that occurs when the car is attempting to get out of first gear. The shuttering is becoming more violent. The car has also slipped out of drive (while on the road) and wouldn't accelerate. I've read that the shuttering isn't fairly common in this model and/or type of transmission.
The contact owns a 2003 Honda civic-hybrid. The contact stated that the vehicle shutters and jerks when shifting gears. The failure occurs at all gears, with the greatest difficulty shifting out of second gear. The dealer replaced the catalytic converter, starter clutch, and flushed the transmission, however, the failure still persists. The dealer stated that some jerking was normal. The speed was unknown. The current mileage was 71,000 and failure mileage was 30,000.