Chrysler Pacifica 2021 — technical service bulletin
Bulletin S2108000147 · NHTSA communication 10221282 · issued Jun 16, 2021
Technical service bulletin
communication type
Structure
component
2021
model years
2
vehicle entries
Official summary
CEL (Check Engine Lamp) Comes On, U11E9 Lost Communication With AGS (Active Grill Shutter), Vehicle Not Equipped With MDX Sales Code
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.