Jeep Grand Cherokee 2021–2023 — technical service bulletin
Bulletin S2308000055 · NHTSA communication 10240021 · issued May 3, 2023
Technical service bulletin
communication type
Electrical System
component
2021–2023
model years
5
vehicle entries
Official summary
Vehicle May Not Start, Service High Voltage System Warning Displayed, DTC P1D72-00 Open High Voltage Cable
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.