Traction battery securing assembly and method

A traction battery assembly, comprising:

• a battery pack of a vehicle;
• a securing assembly that moves from a first position to a different, second position in response to an impact load to permit movement of the battery pack relative to the structure of the vehicle, the securing assembly securing the battery pack to a structure of the vehicle, the battery pack electrically coupled to a powertrain of the vehicle when the securing assembly is in the first position;
• a rail and a groove of the securing assembly, the groove slideably retained by the rail, the groove sliding relative to the rail when the securing assembly moves from the first to the second position;
• and
• a damper that damps movement of the groove relative to the rail.