I tried playing with the volume etc, but nothing worked to reduce the volume....and I agree, it was downright dangerous....we'd be driving down the road enjoying our ride, when someone would call and it really startled us....I was in at the dealership where I bought it and mentioned it to one of the techs.....we sat in my Levante and he called me with his cell.....he just about jumped out of his skin! He did a simple hard re-set while we were in the car and problem solved....it now rings normally...I had to re-enter some items....favorite radio stations for example, but that was little inconvenience compared to stopping the excessively loud phone ring!