Jeep Gladiator 2018–2021 — technical service bulletin
Bulletin 08-133-21 · NHTSA communication 10218559 · issued Aug 6, 2021
Technical service bulletin
communication type
Electrical System
component
2018–2021
model years
14
vehicle entries
Official summary
UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to: 39.6.The repair procedure must be followed step by step. If the radio is not updated with the correct software level at the correct time the radio can be damaged. If the radio was damaged by not following the repairprocedure the radio may need to be replaced. Customers may experience one or more of the following: Lost radio presets. SXM favorite song not displaying/playing. Radio display screen is black, intermittent. Radio freeze intermittent. Incorrect navigation address/lo
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.