2006 Cadillac DTS Owner's Manual - Page 13

Head Restraints The front head restraints lock into place when raised. To release a front head restraint and lower it, press the button located at the base of the restraint. Adjust your head restraint so that the top of the restraint is closest to the top of your head. This position reduces the chance of a neck injury in a crash. The front and rear head restraints may be able to be tilted forward and rearward, in addition to being moved up and down. The rear head restraints may also be adjustable up and down. They do not have a release button to lower them. 1-7