2018 Honda Clarity Plug-In Hybrid Transmission and drivetrain Problems

“I have only had the car 2 months, but twice so far, while traveling downhill at 45 MPH, the engine began to rev to its redline and there was no power to accelerate in hv mode. This was quite dangerous in one instance as I was unable to accelerate onto a highway.”

“Loss of power and engine comes on with high revs while car is moving. In hv mode engine revs are continues even though I have 20 miles of EV range. I had power loss twice now in slow speed around 30 miles/hr andt 65 miles/hr”

“While driving on the interstate through the mountains, the car was able to keep up with traffic at the bottom of the mountain. However, as I approached the summit, no matter how far down I pushed the accelerator pedal, the car would not increase speed. With the pedal completely floored (past the hybrid system click point) the car would still not pickup speed, nor did it sound like the engine was even trying to rev higher. As I kept approaching the summit with the pedal floored, the car started to slowly lose speed. …”

“Hi. My 2018 Honda clarity phev suffers a severe drop in power when switching from the electric motor to gas engine. There have been many times when I am driving on the interstate at 60 MPH and all of sudden it can barely go 30 MPH and the engine is revving very loudly. This issue appears to be worse in cold temperatures. I now have to make sure I am not on the interstate for the switch and sometimes pull over to the side of the road for a few minutes until it passes. Please have Honda issue a fix for this problem.”

“State of driving condition: the car was set in cruise at 70 MPH in hv mode (not charge mode). Ev range was 30 mile remaining, approximately 70% of battery remaining. The Honda clarity phev spontaneous excessive revving the engine while cruising at a constant speed on flat highway road then the car dropped speed by itself without any car in front. Once I notice the car does not have power to regain to set cruising speed, I turned cruising off, switched the car from hv to EV then the engine stop doing high revving. …”