twinkies99

@ salsaguy That is a good suggestion. I didn't think about that. I will definitely go to another dealer nearby. I am also pretty sure this is not normal because the noise is very obvious as I drive and I know I would've noticed that Immediately when I test drove the car the first couple of times. I will update as I find out more. I hope I find what the problem is soon. Other than this sound I truly do like this car.

Thanks Paul I think I will look into finding one nearby.

@ Stevedebi, My car does go into EV mode above 62mph. As for the sound thank you for the info. I actually have taken it back to the dealership and they say everything is normal and the car is fine, I even had the guy drive with me so he could actually hear it, but I think I am going to go back to my sales guy and ask him to let me test drive another cmax because I do not think that sound should be happening. To me it seems as though the service guys do not have too much experience with the Hybrids yet so they may not know what the sound is. I will keep trying and update when I find out.

Hello, I am new to this forum and hope I can find some answers. I just purchased my C Max in December and I do not recall hearing a hissing noise when I accelerate and brake, but for the past week I have noticed that when I am accelerating up to about 20-30 mph and when I am braking I hear a hissing sound. I have taken my car to the dealer and they said there is nothing wrong with the car and one service guy said it was a pedestrian warning sound the car makes. This sound is more obvious when the radio is off, but even if the radio is low I can hear it. It is very annoying. Is anyone else experiencing anything similar? Val :sad: