WHILE PARKED, I PUT MY KEY IN THE IGNITION AND STARTED THE CAR. MY PASSENGER SIDE SIDE IMPACT AIRBAG DEPLOYED/EXPLODED UPON ENGINE STARTING. I SUFFERED A CONCUSSION, TINNITUS, AND INNER EAR DAMAGE FROM THE AIRBAG EXPLODING. TOOK CAR TO A GM DEALERSHIP WITH A SAAB TECHNICIAN TO HAVE CAR DIAGNOSED TO EXPLAIN WHY THE AIRBAG DEPLOYED/EXPLODED. NO DIAGNOSIS MADE. BUT THEY DID READ ERROR CODE SAYING AIRBAG SENSOR COMMUNICATION FAILURE AFTER AIRBAG DEPLOYED/EXPLODED. NO WARNING LIGHTS WERE LIT PRIOR TO INCIDENT. THERE WERE NO SERVICE CODES PRIOR TO INCIDENT EITHER. (I HAD CAR CHECKED 1 WEEK PRIOR TO INCIDENT)