Jeep Grand Cherokee 2021 — technical service bulletin
Bulletin 0809021 · NHTSA communication 10230140 · issued May 25, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
2
vehicle entries
Official summary
UKG Radio Enhancements This bulletin involves updating the radio software level to 2036.07. Customers may experience one or more of the following:Screen flickering. Carplay audio does not always resume. In addition, the following software enhancements are available:Apple certification enhancements. Google certification enhancements.
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.