Jeep Grand Cherokee 2021–2022 — technical service bulletin
Bulletin S2121000014 · NHTSA communication 10218511 · issued Aug 18, 2021
Technical service bulletin
communication type
Exterior Lighting
component
2021–2022
model years
2
vehicle entries
Official summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) C1472-92 ? Transfer Case Clutch Control ? Performance or Incorrect Operation, Set After Performing A Routine Module Software Update.
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.