Fuel System Pressure Release

WARNING: This page is about a different car, the 2018 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of CHRYSLER GROUP, LLC

Remove the fuel fill cap.
NOTE:
If equipped with a capless fuel system, insert funnel or equivalent into capless unit to release pressure.
Remove the fuel pump relay from the Auxiliary PDC. Refer to FUSE - RELAY LOCATIONS AND TYPES, SPECIFICATIONS .
Start and run the engine until it stalls.
Attempt restarting the engine until it will no longer run.
Turn the ignition key to the OFF position.
Place a rag or towel below the fuel supply line quick-connect fitting (2) located near the cowl.
Disconnect the fuel supply line quick-connect fitting at the fuel supply line (1). Refer to FITTING, QUICK CONNECT .
Return the fuel pump relay to the Auxiliary PDC.

NOTE:

One or more Diagnostic Trouble Codes (DTC) may have been stored in the PCM memory due to fuel pump fuse removal. A diagnostic scan tool must be used to erase a DTC.