2012 Toyota Prius Owners Manual - Page 392

1 -4 . Adjust a ble c om pone nt s (se a t s, m irrors, st e e ring w he e l) H e a d re st ra int s Head restraints are provided for all seats. Vehicles with adjustable type head restraints Up Pull the head restraint up. 1 Down Push the head restraint down while pushing the lock release button. Before driving Lock release button