Ford Mustang 2015–2019 — technical service bulletin
Bulletin TSB 19-2090 · NHTSA communication 10156524 · issued Mar 25, 2019
Technical service bulletin
communication type
Power Train
component
2015–2019
model years
5
vehicle entries
Official summary
Some 2015-2019 Mustang GT350/GT350R vehicles may exhibit a hesitation or surge in the vehicle with no diagnostic trouble codes (DTCs) present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has become loose, allowing the output shaft tone ring to move in relation to the output shaft causing an erroneous signal. To resolve the condition, replace the output shaft flange.
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.