Jeep Wagoneer S 2025 — technical service bulletin
Bulletin 08-228-25 · NHTSA communication 11021554 · issued Jul 31, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025
model years
1
vehicle entries
Official summary
Electric Coolant Heater Malfunction Customer may comment on the following: ● Vehicle will not turn on. This bulletin involves replacing the electric coolant heater.
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.