Chrysler 300 2019 — technical service bulletin
Bulletin 18-099-19 · NHTSA communication 10170392 · issued Dec 14, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may describe the following: Hearing a predetonation noise (Spark Knock) sound in the engine during acceleration.
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.