Dodge Challenger 2018–2020 — technical service bulletin
Bulletin 11-001-20 · NHTSA communication 10175736 · issued Apr 23, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2020
model years
6
vehicle entries
Official summary
Active Exhaust Valve Rattle This bulletin involves inspecting the active exhaust actuator motor and tightening to specifications, if necessary. The customer may describe that vehicle has an exhaust rattle on acceleration and deceleration in1500-2400 RPM range when the sport mode is off.
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.