Vehicle suddenly lost power on the highway, unable to exceed approximately 30-40mph on electric only mode. Hybrid mode or regenerative hybrid modes were unable to successfully engage to power the vehicle. Electric only power supply was soon depleted & the vehicle was unable to start the gasoline engine and re-enter normal hybrid powered mode. Vehicle completely lost power and required a tow. As of 01/09/2014 the vehicle is still at an authorized Honda dealer service department awaiting repair with no current known diagnosis provided to me. The authorized Honda dealer service department is in contact with Honda corporate technical attempting to troubleshoot and identify the cause of the loss of power and locomotion.

- Mission Viejo, CA, USA

The unusual event occurs when driving the 2014 Honda Accord plug-in at about 45-65 mph. Normally, accelerating the car requires using both the gas engine and battery (hv mode) to move the vehicle at this speed. But everyday for about a week now, while driving on the freeway, the car's gas engine suddenly and randomly revs consistently very high and also notably very loud. On 11/27/13, while driving southbound on the 5 fwy, after about a minute of the unusually high rev noise again, the car loses all power and movement from the gas engine. It was likely, only the battery was providing movement of the car because the battery meter had only 1 bar left (the car battery meter usually always has at least 2 bars during normal operation). I was able to pull over to the side shoulder lane, attempt to restart the vehicle and the car was still not able to accelerate normally. After another attempt to restart the vehicle, it finally starts to work normally again.

- Irvine, CA, USA