1998 Toyota 4Runner Owners Manual - Page 76
1998 Toyota 4Runner Manual
Page 76 highlights
4RUNNER (1998) 2. While pressing the infant seat firmly against the seat cushion and seatback, tighten the lap belt by pulling its free end to hold the infant seat securely. CAUTION Push and pull the child restraint system in different directions to be sure it is secure. Follow all the installation instructions provided by its manufacturer.