Jeep Gladiator 2018–2023 — technical service bulletin
Bulletin 89211 · NHTSA communication 10234445 · issued Feb 15, 2023
Technical service bulletin
communication type
Communication
component
2018–2023
model years
10
vehicle entries
Official summary
Warranty Bulletin D-23-04 2018 - 2023 (Current) Jeep Wrangler (JL) and 2020 - 2023 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification (Rev. A)
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.