TL*THE CONTACT OWNS A 2005 HYUNDAI XG350. WHEN THE CONTACT STARTED THE VEHICLE, THE DRIVER'S SIDE FRONTAL AIR BAG SUDDENLY EXPLODED WITH A LOUD NOISE. THERE WERE NO WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT SUSTAINED INJURIES TO HER LEFT ARM AND THUMB. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR REPAIR, BUT THE CAUSE OF THE FAILURE HAS NOT YET BEEN DETERMINED. THE CONTACT WAS CONCERNED OF THE SAFETY RISK INVOLVED AND SHE IS IN THE PROCESS OF NOTIFYING THE MANUFACTURER. THE FAILURE AND CURRENT MILEAGES WERE 49,000.