One problem related to front driver side air bag inflator has been reported for the 2012 Lexus LS460. The most recently reported issues are listed below.
Upon initial start up the airbag failure take to dealer immediately� warning light displayed. Took to dealer that day, warning light went out but dealer obtained a code srs b19a6 indicating a problem with an open circuit on the headrest inflator. Told to return if light comes back on, it did and required replacement of headrest inflator and the center airbag ecu sensor assembly. Manufacture provided $750 credit towards a $1,515. 08 repair.