Jeep Grand Cherokee 2014 — technical service bulletin
Bulletin S1318000031 · NHTSA communication 10176513 · issued May 2, 2020
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2014
model years
1
vehicle entries
Official summary
CEL (Check Engine Lamp) on, DTC P0455 Evaporative System Large Leak
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.