TSB: OPTIMA VEHICLE TRACKING DIAGNOSIS & REPAIR - THIS BULLETIN PROVIDES INFORMATION ABOUT SOME 2011MY OPTIMA VEHICLES PRODUCED FROM SEPTEMBER 1, 2010 TO AUGUST 31, 2011 THAT MAY BE SENSITIVE TO ROAD CONDITIONS AND EXHIBIT A SLIGHT DRIFT TO THE LEFT, ESPECIALLY WHEN DRIVING ON LONG STRAIGHT ROADS, AND LEAD TO CUSTOMER ANNOYANCE COMPLAINTS. THIS BULLETIN OUTLINES PROCEDURES TO HELP CORRECT THE “DRIFT TO THE LEFT” CONDITION.