acdii Report post Posted February 9, 2013 This is pretty much common in all Hybrids and not specific to the Fusion. For a brief overview that hopefully is understood, when you apply braking in the Hybrid, the computer determines whether to regenerate or use the friction brakes(pads and rotors). If the battery is low, it will attempt to use as much regen as possible based on the position of the brake pedal, The harder you press the more it will generate power and push it to the batteries up to a set limit*, once that is reached it will switch to the hydraulic brakes. If the pack is fully charged the computer will use the hydraulics instead, and very little regen will occur. The Brake Coach on the new Fusion can help you with that, if you push too hard it will start using both, too light and it will undercharge. Need to get it just right, the amount of pressure needed to slow the car down at a good steady pace over the distance traveled, so that when you reach your stop, it will be soft and gentle. A good guide is on a rural road @55 MPH, when you see the stop ahead sign, start braking and apply enough pressure so that when you are almost to the stop you are under 10 MPH, so that a twitch of your toe is all it takes to fully stop. *The computer determines how much energy it can force into the batteries based on percentage of charge, temperature, etc. to prevent too fast a charge, or over charge. Quote Share this post Link to post Share on other sites