Jeep Wrangler 2021–2023 — technical service bulletin
Bulletin 9100116 · NHTSA communication 10231684 · issued Jan 6, 2023
Technical service bulletin
communication type
Fuel System, Gasoline
component
2021–2023
model years
3
vehicle entries
Official summary
Valve - Coolant JL PHEV Hoses to 3-Way valve coolant hoses misroute causes P0E80-00. Check hose routing as outlined in Star Online Publication S2208000205 or on a known good vehicle before replacing valve. Routing hoses correctly will likely fix the issue.
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.