The 2011 Fiesta airbag system is generating a cluster of distinct failure patterns. Some owners report the passenger airbag off light illuminating and extinguishing randomly during normal driving with occupants in the seat—one customer had every airbag-related component replaced at a Ford dealer and the problem persisted. Others describe airbag warning lights that stay lit or cycle intermittently, suggesting underlying electrical or sensor faults that dealers haven't resolved.
More critically, multiple crash narratives document complete airbag deployment failures. In frontal collisions at 25–45 mph, drivers and passengers report warning lights illuminating but bags never deploying, leaving them unprotected; several occupants sustained injuries and vehicles were totaled. Side-impact crashes show similar patterns—at least two incidents involved vehicles rolling or flipping after side-door strikes with no airbag deployment. One owner reported a partial deployment in which only the knee airbag functioned while the steering-wheel airbag failed to deploy. Separately, one narrative mentions a Takata inflator rupture during a minor collision that caused multiple facial fractures and a broken arm. A third issue involves airbags deploying unprovoked during low-speed driving or with extremely sharp seams that cut occupants. The narratives show manufacturer notification occurred in only a handful of cases.
Failure modes owners describe
Passenger Airbag Off Light Illuminates Intermittently While Occupied
The passenger-side airbag off indicator cycles on and off at random intervals during normal driving with an occupant in the seat, even after complete airbag system replacement at dealership.
When: Started immediately after purchase; occurs during straight driving, cornering, acceleration, and deceleration
Symptoms owners cite: Passenger airbag off light comes on and off at random intervals for up to 30 seconds; Occurs with light adult passengers (130 lbs); Problem persists despite dealer replacement of all airbag-related parts
Repairs/costs cited: Dealership replaced every part associated with the airbag system over two service visits; problem remains unresolved
Driver-Side Airbag Deploys With Sharp Seams, Causing Laceration Injuries
During frontal impacts, driver-side airbag deployed but had exposed stitching on the exterior with extremely sharp seams, resulting in laceration and possible nerve damage to occupants.
When: At 15,000 miles during 25–30 mph frontal collision
Symptoms owners cite: Airbag deployed from steering wheel and floor level; Sharp seams on exterior of airbag material; Severe lacerations to right wrist requiring hospital stitches; Possible nerve damage reported by occupant
Repairs/costs cited: Vehicle was repaired; occupant received hospital treatment and stitches
Recalls/TSBs owners mention: Manufacturer contacted, advised they would send complaint forms (forms never received)
Airbag Deploys Unexpectedly Without Impact
Driver-side airbag deployed while vehicle was moving at low speed (approximately 5 mph) with no collision or impact event.
When: At approximately 70,000 miles during normal driving
Symptoms owners cite: Airbag deployed without warning or impact; Horn, airbag, and cruise control became inoperable after deployment; Occupant had to cut off airbag and drive to residence
Repairs/costs cited: Vehicle was not diagnosed or repaired by owner
Frontal Airbags Fail to Deploy During Frontal Collisions
In multiple frontal-impact crashes, driver and/or passenger frontal airbags failed to deploy despite adequate impact severity. Warning lights illuminated but airbags did not activate.
When: Reported at mileage ranging from 30,000 to 53,000 miles
Symptoms owners cite: Airbag warning lights illuminated but bags did not deploy; Occupants sustained unprotected injuries to neck, chest, and head during frontal crashes at 25–45 mph; Multiple vehicles destroyed or heavily damaged; occupants required medical attention
Repairs/costs cited: Vehicles were not repaired for airbag failure
Recalls/TSBs owners mention: Manufacturer was made aware of at least one incident
Side and Curtain Airbags Fail to Deploy During Side-Impact Collisions
During side-impact collisions, side airbags and curtain airbags failed to deploy despite being struck on the driver-side door area.
When: Reported at mileage ranging from approximately 35,000 to 70,000 miles
Symptoms owners cite: No airbag deployment when vehicle was struck on driver-side door or rear; Vehicles rolled and flipped without airbag deployment; Occupants sustained bruises, internal injuries, and required medical treatment
Repairs/costs cited: Vehicles were not inspected or repaired for airbag failure
Airbag Warning Light Remains Illuminated or Cycles Intermittently
Airbag warning indicator remains continuously lit or cycles on and off intermittently without deployment or clear failure event, indicating a sensor or electrical malfunction in the airbag system.
When: Reported at mileage ranging from 14,259 to 55,000 miles
Symptoms owners cite: Airbag warning light illuminated and remained lit or cycled on and off; No associated airbag deployment or impact; Safety concern for occupant due to unknown system status
Repairs/costs cited: Vehicles were not diagnosed or repaired
Partial Airbag Deployment During Frontal Collision
During a frontal collision, only the knee airbag deployed while the steering wheel airbag failed to deploy, leaving the driver unprotected for upper body impact.
When: At undisclosed mileage during low-speed rear-end collision into stopped vehicle
Symptoms owners cite: Knee airbag deployed; Steering wheel airbag did not deploy; Shoulder belt did not deploy or activate; Driver struck steering wheel hard, causing sternum bruising and surrounding muscle inflammation
Repairs/costs cited: Not documented
Takata Inflator Rupture Causing Fragmentation Injury
Airbag with Takata inflator ruptured during deployment in a minor collision, causing metal shrapnel to strike the occupant's face and upper body with severe force.
When: During low-speed fender-bender collision
Symptoms owners cite: Airbag inflator ruptured during deployment; Multiple facial fractures to occupant; Broken arm and shattered fingers from inflator fragmentation
Repairs/costs cited: Not documented
Synthesized from 22 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.