Jeep Grand Cherokee 4XE 2022 — technical service bulletin
Bulletin 0820322 · NHTSA communication 10230534 · issued Nov 4, 2022
Technical service bulletin
communication type
Electrical System
component
2022
model years
1
vehicle entries
Official summary
Telematics Box Module (TBM) Updates
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.