CHEVROLET\SATURN\PONTIAC SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT, ENGINE CONTROL MODULE, EMISSION RELATED REPROGRAMMING. ENGINE CONTROL MODULES ON CERTAIN VEHICLES MAY RANDOMLY FAIL TO RESPOND TO SINGLE INFORMATION REQUESTS MADE BY AN ON BOARD DIAGNOSTIC (OBD) EMISSION TEST DEVICE, GENERIC SCAN TOOL, OR OTHER AFTERMARKET DEVICES THAT PLUG INTO THE VEHICLE'S DATA LINK CONNECTOR (DLC). CSC LETTER WAS RECEIVED. *PE
