Chrysler 200 2015 — technical service bulletin
Bulletin 21-034-14-3 · NHTSA communication 10218229 · issued Nov 26, 2014
Technical service bulletin
communication type
Electrical System
component
2015
model years
2
vehicle entries
Official summary
Flash: 948TE 9 Speed Shift Enhancements And Quick Learn Enable This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. The following TCM calibration update is being released to enable the new wiTECH based ?Transmission Quick Learn? procedure to be performed anytime the transmission adaptation memory cells are cleared or when addressing customer concerns of poor shift quality. It is also being released to improve transmission downshift response time during normal driving.
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.