( CNN ) -- Hyundai is recalling more than 220,000 Santa Fe SUVs and Sonata sedans because of potential problems with their air bags . The recall affects almost 200,000 SUVs from the 2007-2009 model years , according to the National Highway Traffic Safety Administration . These vehicles ' front passenger airbags may not deploy in the event of a crash because of a possible problem with their occupant classification system , which gauges the size of a passenger and based on that whether an air bag should be deployed . The system may need to be recalibrated to detect to `` small statured adults , '' the federal safety agency said . The company is also recalling more than 22,000 sedans from the 2012-2013 model years , according to the administration . These cars ' curtain side airbags may inflate for no apparent reason because of a manufacturing error . Hyundai dealers are expected to notify owners and replace the curtain side airbags free of charge , the NHTSA said . Dealers will also update the classification software for free in the affected SUVs .
The recall affects almost all Santa Fe SUVs and more than 100 cars . The front passenger doors may not deploy properly in the SUVs . The curtain mounted doors in the sedans may fail for no apparent reason .