Jeep Grand Wagoneer 2022–2023 — service campaign
Bulletin 26B Combo · NHTSA communication 11001523 · issued Jun 1, 2024
Service campaign
communication type
Engine
component
2022–2023
model years
4
vehicle entries
Official summary
Customer Satisfaction Notification 26B Thermostat
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.