FORD 2013 Fiesta v.1 - Manual (Page 54)

If any of these things happen, even intermittently, have the supplemental
restraint system serviced at an authorized dealer immediately. Unless
serviced, the system may not function properly in the event of a
collision.
The safety belt pretensioners and the airbag supplemental restraint
system are designed to activate when the vehicle sustains longitudinal
deceleration sufficient to cause the restraints control module to deploy a
safety device.
The fact that the safety belt pretensioners or front airbags did not
activate for both front seat occupants in a collision does not mean that
something is wrong with the system. Rather, it means the restraints
control module determined the accident conditions (crash severity, belt
usage, etc.) were not appropriate to activate these safety devices.
• Front airbags are designed to activate only in frontal and near-frontal
collisions (not rollovers, side impacts or rear impacts) unless the
collision causes sufficient longitudinal deceleration.
• The safety belt pretensioners are designed to activate in frontal and
near-frontal collisions, and may also activate when a side curtain
deploys.
• The knee airbag deploys from under the instrument panel when the
passenger airbag activates in a collision.
• Side airbags and side curtain airbags are designed to inflate in
side-impact collisions, not rollovers, rear impacts, frontal or
near-frontal collisions, unless the collision causes sufficient lateral
deceleration.
AIRBAG DISPOSAL
Contact your authorized dealer as soon as possible. Airbags MUST BE
disposed of by qualified personnel.
54 Supplementary Restraints System
2013 Fiesta (fie)
Owners Guide gf, 1st Printing
USA (fus)