LEFT SIDE AIRBAG SPONTANEOUSLY DEPLOYED IN 2003 LINCOLN LS INJURING ROTATOR CUFF OF DRIVER. THERE WAS NO IMPACT, SIDE OR OTHERWISE. TALC BLINDED THE DRIVER, THE EXPLOSION WAS LOUD AND BURNING ON ARM AND SHOULDER MADE DRIVER THINK THE CAR HAD EXPLODED AND CAUSED PANIC TRYING TO GET OFF THE ROAD AND GET THE CAR STOPPED. WAS ON LIGHTLY TRAVELLED, SMOOTH ROAD, LITTLE TRAFFIC. *AK