RAM 1500 2018 — technical service bulletin
Bulletin S1808000235 · NHTSA communication 10176526 · issued May 9, 2020
Technical service bulletin
communication type
Electrical System
component
2018
model years
4
vehicle entries
Official summary
Sound Distortion After FOTA Update Audio Sounds Muffled Has Too Much Bass or Flat Sounding
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.