RAM 1500 2020–2022 — technical service bulletin
Bulletin S2208000151 · NHTSA communication 10225217 · issued Aug 20, 2022
Technical service bulletin
communication type
Equipment
component
2020–2022
model years
3
vehicle entries
Official summary
Check Engine Lamp (CEL) On, Diagnostic Trouble Code (DTC) U11E9 Lost Communication with Active Grill Shutter (AGS)
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.