Jeep Cherokee 2016 — technical service bulletin
Bulletin 21-014-17 · NHTSA communication 10140057 · issued Mar 31, 2017
Technical service bulletin
communication type
Power Train
component
2016
model years
1
vehicle entries
Official summary
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a less than desirable upshift in the transmission.The following enhancements are included in the software update: Min spark changes to prevent catalytic converter overheating. Transmission up shift quality enhancement in conjunction with Powertrain Control Module (PCM) reprogram.
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.