Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information And Procedures >> DTC P0461-P0464, P2066, P2067, Or P2068: Fuel Level Sensor 1 (AWD With Diesel Engine) >> Action Taken When the DTC Sets