CADILLAC/CHEVROLET: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DIAGNOSTIC SYSTEM IS INCORRECTLY INDICATING LEAKAGE IN FUEL EVAPORATIVE SYSTEM DUE TO EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE FAILING TO CLOSE PROPERLY. MODEL 2012 CTS, CAMARO. *PE UPDATED 6/16/15. *PE
