Jeep Wrangler 2022–2023 — technical service bulletin
Bulletin 0700423 · NHTSA communication 10239915 · issued May 2, 2023
Technical service bulletin
communication type
Structure
component
2022–2023
model years
2
vehicle entries
Official summary
Coolant Overflow Bottle Leaking Coolant Leak. This bulletin involves inspection the overflow coolant bottle for leaks and replacing it if needed.
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.