Pontiac 1993 Sunbird Owner's Manual page 12

Head Restraints
Head restraints are fixed on some
vehicles and adjustable on others. Slide
an adjustable head restraint up or down
so that the top of the restraint is closest
to the top of your ears.
This position reduces the chance of a
neck injury in a crash.
On some models, the head restraints tilt
forward and rearward also.
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