Check Fuel Cap

The CHECK FUEL CAP indicator is used to indicate significant leaks in the fuel tank evaporative system due to a loose fuel cap. Fuel tank pressure is monitored by the PCM. If a leak is detected the PCM signals a fault to the instrument cluster via the SCP network. Once the PCM has detected a loose fuel cap and the CHECK FUEL CAP indicator is illuminated, the indicator remains illuminated until the fuel cap is secured and the vehicle has been running for several minutes. For additional information, refer to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .