SERVICE INFORMATION If DTC 20A7 and / or A0A7 is found stored as Current or Past in an applied vehicle during any service - ignore it. DTCs 20A7 and A0A7 are not a malfunction and do not require any inspection, diagnosis, or parts replacement. DTCs 20A7 and A0A7 may be set after using Remote Engine Start (RES) and has no affect on vehicle performance. If performing service on any vehicle component or system on an applied vehicle, ignore DTCs 20A7 and A0A7 when performing appropriate diagnosis / repair procedures in accordance with the Electronic Service Manual (ESM). See this bulletin for further detail.