Hyundai found that a support bracket for the headliner could come loose when the side curtain airbags are deployed. In the event the side airbag is deployed, the bracket could come loose and cause injury to the occupants. Dealers will apply adhesive strips to the headliner to correct this concern.
 
Recalls
Recalls are issued for cars with safety-related defects or problems
2012 Hyundai Elantra
Loose Headliner Support Bracket
Body, Interior & Misc., April 1, 2013