Problem with Rotation and Character controller

I have a problem with the rotation of my character, when rotating my character, only that by turning the grid and not the capsule collider.

show the images here:

and my code

var tempDir1 = new Vector3(objetivo.transform.position.x,0,
                                            objetivo.transform.position.z);
    var tempDir2 = new Vector3(transform.position.x,0,
                                            transform.position.z);                                      
    var dir = tempDir1 - tempDir2;
    var rot = Quaternion.LookRotation(dir, Vector3.up);
    transform.rotation  = Quaternion.Slerp (transform.rotation, rot, Time.deltaTime * 20); 
    transform.rotation.x=0;
    transform.rotation.z=0;
    dir.Normalize();