When driving in gas mode, the engine is revving high as in high rpm. I am not sure if the gear is shifting or has problems. The car revs high and the more I push the accelerator the louder the engine sound.

- Fremont, CA, USA

This is a 2019 Honda Clarity hybrid vehicle, with 53000 miles at the time of incident. I was driving up hill going about 55 miles per hour, all of the sudden the speed kept dropping even though the gas pedal remained pressed. Pressing the gas pedal more had no effect on speed, except to increase the engine RPM and the high-pitched noise. Luckily I was on the right lane. Pulled the car over to the shoulder and turned it off. The problem went away after restart. From researching on google, this seems to be a quite common occurrence with Honda Clarity. Since it couldn't be replicated at will, it's difficult to solve. There are speculations online that it could be software related, but my honda dealer wouldn't document the issue.

- Carlsbad, CA, USA

Car engine makes loud banging noise when it is running on gas instead of electrical battery. I had asked Honda dealer to review but they say they can not do anything about it. It is feels as if car making so much banging noise from engine has inherent issue and will eventually catch fire.

- Monmouth Junction, NJ, USA

7.25.2020 - when car is running for 45 minutes, 85 degrees F, ev on, econ off, engines loses power and revs high after 40mph. 7.18.2020 - when car is running for 45 minutes, 89 degrees F, ev off, econ on, engines loses power and revs high after 40mph. 2015 Toyota prius plug-in had the similar issue of the car losing power after driving faster than 62 mph with ev mode on. A relay switch recall occurred that fixed this issue.. so far.

- Alhambra, CA, USA

July 4, 2020 drove with our family of 2 babies on a local highway with a maximum speed of 50mph and traveling a round-trip distance of 52 miles. Outside temperatures were about 89℉. after driving for about 20 minutes, the engine would rev at a high RPM at 40mph. It could be heard and felt over the radio's music. Giving more gas didn't make the car drive faster. On the way home, about 40 minutes into the drive, the engine revved high again at 40mph, lost of power, and this time making the car's speed slow to 30mph because we were approaching a red light, luckily. This issue occurred before on July 27,2020 when my wife drove the car and conplained about it driving slow and engine revving loud. This car has only 1,884 miles on it and was bought in January 2020. Lemon law.

- Alhambra, CA, USA

My car is losing power and getting loud noise while driving on an uphill road. I have shown my car to 3 different dealers and they couldn't fix it. I have seen many online reviews with the same problem and still, Honda is not helping its customer.

- Irvine, CA, USA

The contact owns a 2019 Honda Clarity plug-in hybrid. When the vehicle switched from running on the battery to fuel, the vehicle lost power. In addition, the engine ran on very high rpms and the vehicle lost power without warning and came to a complete stop while driving 65 mph. The contact coasted the vehicle to the side of the road and powered off the engine. The vehicle was restarted, but the failure recurred. The contact stated that the failure recurred twice, but the vehicle was not taken to a dealer or an independent mechanic for diagnostic testing. The manufacturer was not made aware of the failure. The failure mileage was approximately 100.

- San Diego, CA, USA

The car drives fine when there is sufficient battery. When battery level drops to low (2 bars) the car does not respond to accelerator. The engine becomes sluggish and revs up quite a bit. I have driven ~650 miles so far and this has happened 4 times already. Luckily it happened only once in the highway where this would have been dangerous and life threatening.

- So San Francisco, CA, USA