I was driving around 3:00 pm when the car suddenly accelerated on its own. I slammed on the brakes, but the car continued to accelerate. I managed to put it in neutral and continued to apply the brakes. In the three weeks prior to this event, the engine revved as if the accelerator had been floored after I put it in park after driving home from work (it never happened after the drive to work which was in less traffic and took less time). It did not happen every time. My wife was with me on one occasion and experienced it also.

- Atlanta, GA, USA

The contact owns a 2008 Honda Civic hybrid. While driving at 55 mph, the accelerator pedal was depressed but the vehicle failed to accelerate. The integrated motor assist battery depleted from full to only two bars in a matter of seconds. In addition, the contact stated that the vehicle completely recharged in approximately two minutes. The failure recurred on numerous occasions. The vehicle was taken to a dealer who was unable to diagnose or repair the vehicle. The manufacturer was notified of the failure. The failure mileage was 126,000.

- Dracut, MA, USA

I don't actually know when this started. It has been going on for quite some time. Sometimes when I start from a stopped position to enter traffic, even though I have the accelerator floor-boarded, the car barely responds. When I look, the hybrid charge is very low, but I may have just had the car out a short while before and the hybrid battery was fully charged. It seems as if I not only have no acceleration assist from the hybrid battery, but there is almost no power assist at all. I have not had an accident yet but fear it may happen, as I frequently have to pull out onto a very busy two lane road.

- Uniontown, OH, USA

After the 2010 software update from Honda on the ima motor, the acceleration of the car when the ima battery is in the low meter is dangerous. I cannot get enough speed to get on the freeway or have the necessary avoidance in normal everyday traffic.

- Farmers Branch, TX, USA

I'm concerned with the safety of my family when driving this vehicle due to the poor performance as detailed below. The ima battery drains so frequently and so suddenly(gets worse in the summer) that we've been very close to be involved in a few accidents. When stopped and waiting at an intersection for the green light, the car is either idled or in "auto stop" mode. Once the light turns green and I let go off the break, the car fails to accelerate fast enough to the point that I don't make it across the intersection in time, even though I'm the first car closest to the intersection, thus causing the cars behind me to run the red light. I have also had very close calls when merging and entering the freeway at the speed of traffic since the car fails to accelerate. Another dangerous situation is when driving on the freeway at a steady speed of 65 mph on flat conditions and coming to an uphill, the car doesn't maintain the same speed. So I need to accelerate more. The RPM reaches 4000, the car is now barely making 45-50 mph and the traffic behind me is force to slow down or suddenly change lanes in order to avoid hitting me from behind.

- Pomona, CA, USA

The battery on my Honda Civic hybrid has been failing to charge which means my car has no power to move quickly up hills or accelerate when I need to especially as I am merging onto the freeway. There have been numerous dangerous occasions where I may have been the first car at a traffic light, the light will turn green but my car has no power to make it up the hill. There has also been incidents when I am merging onto the freeway but can't get my car to accelerate to an appropriate speed as to not be a danger to the cars already on the freeway. I pray to god that there is not an 18 wheeler approaching behind me in the right lane or the driver would not be able to slow down in time to allow me to merge onto the freeway. There has also been times where my car will not start up immediately in the morning. I have already replaced the starter battery from the Honda dealership that cost me over $200 after their mandatory adjustment on the ima battery. Honda will not replace my ima battery until the light comes on the dashboard. My car is not yet 4 years old but the battery is already a danger to my safety. Something needs to be done before somebody gets killed in their Honda hybrid for failing to accelerate at the appropriate times.

- Oceanside, CA, USA