Dodge Challenger 2021–2022 — technical service bulletin
Bulletin 9100042 · NHTSA communication 10229447 · issued Aug 24, 2022
Technical service bulletin
communication type
Power Train
component
2021–2022
model years
4
vehicle entries
Official summary
REAR AXLE ASSY,AXLE RR - DRIVE SHAFT ASSY If customer concern is related to a clunk noise coming from the rear axle when slowing down, perform SOL S2221000002 before replacing parts.
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.