TSBCHA055

TSB: SERVICE ACTION: BLIND SPOT DETECTION (BSD) SYSTEM LOGIC IMPROVEMENT (SA187) - THIS BULLETIN PROVIDES INFORMATION RELATED TO AN UPGRADE OF THE LOGIC FOR THE BLIND SPOT DETECTION (BSD) SYSTEM OF SOME 2015MY OPTIMA (QF) VEHICLES, PRODUCED FROM AUGUST 12, 2014 TO NOVEMBER 19, 2014. THE VEHICLES IN QUESTION MAY HAVE A “CHECK BSD SYSTEM” MESSAGE ILLUMINATED IN THE INSTRUMENT CLUSTER, ALONG WITH DTC C270254 OR C270354 STORED IN BSD SYSTEM, AS ACTIVE OR PENDING, DURING FAULT CODE SEARCHING. TO RESOLVE THIS CONCERN, THE BSD SYSTEM SHOULD BE REPROGRAMMED USING THE GDS DOWNLOAD, AS DESCRIBED IN THIS BULLETIN. FOR CONFIRMATION THAT THE LATEST REFLASH HAS BEEN DONE TO A VEHICLE YOU ARE WORKING ON, VERIFY ROM ID USING THE TABLES IN THIS TSB.