See also:

Activation/deactivation
Press the button. ...

Adjusting the height
Adjusting the height ▷ To raise: pull. ▷ To lower: press the button, arrow 1, and push the head restraint down. The center head restraint cannot be adjusted in elevation. ...

Mounts for the lower LATCH anchors
Correctly engage the lower LATCH anchors Make sure that the lower LATCH anchors have properly engaged and that the child restraint fixing system is resting snugly against the backrest; oth ...