Jeep Grand Wagoneer 2023–2026 — technical service bulletin
Bulletin 111128 · NHTSA communication 11031476 · issued Apr 7, 2026
Technical service bulletin
communication type
Structure
component
2023–2026
model years
12
vehicle entries
Official summary
THERMOSTAT – NONE
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.