Vehicle airbag system

A method of deploying an airbag to protect an occupant of a vehicle seat, the method comprising:

• inflating an airbag with an inflator, wherein the airbag includes an upper region configured to extend over a head of the occupant and a lower region configured to extend over a mid-section of the occupant;
• controlling a position of the inflated airbag with a tether that extends from an upper region of the seat to the lower region of the airbag, wherein the tether is connected at a first end and a second end to the airbag, and wherein a middle portion of the tether slideably engages a guide extending from a side of the upper region of the seat.

A system comprising:

• a seat comprising a backrest and a squab extending from the backrest in a longitudinal direction, the backrest extending in height from the squab at a first lower portion to a second upper portion of the seat, the upper portion of the seat configured to be arranged proximal shoulders of an occupant in a seated position;
• and
• an airbag system comprising an airbag to receive inflating gas from an inflator to inflate the airbag from a deflated configuration to an inflated configuration, in which the airbag includes an upper region configured to extend over a head of the occupant in said seated position and a lower region configured to extend over a mid-section of the occupant in said seated position, wherein the airbag system comprises a tether system interconnecting the seat at the second upper portion of the seat and the airbag to restrain the lower region of the airbag in the inflated configuration in the longitudinal direction, wherein a guide is arranged to slideably engage a tether of the tether system, the guide extending from a side of the backrest, and wherein the tether is connected at a first end and a second end to the airbag, the guide arranged between the first end and the second end of the tether.