restraint assembly 16 is carried by the seat back 14 and has a pad 18 and a pair of downwardly extending mounting posts 20 0032 fig2 through 9 illustrate the head restraint assembly 16 the head restraint assembly 16 is provided to enable the pad 18 to be moved inwardly and outwardly in relation to the motor vehicle seat 10 and includes at least one tubular bushing 22 preferably made of plastic mounted to the seat back 14 preferably one tubular bushing 22 is provided for each post 20 each tubular bushing 22 has an inside bore 24 larger than the diameter of the post 20 for receiving the post 20 the bushing 22 further includes a head 26 formed at the upper end thereof which engages the outside of the seat back 14 when mounted to the seat 10 preferably the seat back 14 includes a frame member 28 having an opening 30 larger than the tubular bushing 22 for receiving at least a portion of the tubular bushing 22 as illustrated in fig2 and 3 the head 26 has a socket 32 exposed to the bore 24 at a first end 34 and outwardly accessible at a second end 36 a button subassembly 38 having an insertable end 37 is insertable into socket 32 through the accessible second end 36 and includes a spring 40 located on one side of the bore 24 proximate the insertable end 37 and an actuator portion 42 located on the opposite end of the button subassembly from.