Mercedes-Benz CLA 250 2019 — technical service bulletin
Bulletin P-SC-2021020003 · NHTSA communication 10189411 · issued Feb 5, 2021
Technical service bulletin
communication type
Back Over Prevention
component
2019
model years
2
vehicle entries
Official summary
Update IDC Control Unit Software
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.