This is a common reaction to being out and about at first. Has she been out much in the garden? Other safe gardens? Try playing with her there first.Meanwhile take her out and about with you and go to a quiet park/grass area and just sit down with her and let her look around.When she is comfortable,let her stand on the grass and sniff around.Don't try to 'walk' her at first, but build it up in stages. Cars really scared my pup.It has taken 2 months to get her used to walking along the street where there is lots of traffic,althogh she has loved walks in quiet areas. A little at a time and Lola will soon be trotting happily out!