Jeep Wrangler 2021–2022 — technical service bulletin
Bulletin S2208000203 · NHTSA communication 10229767 · issued Dec 21, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
2
vehicle entries
Official summary
P0E15-00 Hybrid/Ev Battery Pack Coolant Heater "A" Control Performance Active After High Voltage (HV) Module Updates
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.