Jaguar XF 2014–2015 — technical service bulletin
Bulletin JTB00454NAS1 · NHTSA communication 10096886 · issued Nov 11, 2015
Technical service bulletin
communication type
Power Train
component
2014–2015
model years
2
vehicle entries
Official summary
"situation: transmission poor down-shift quality may be experienced when slowing to a full stop, especially while in slow-moving traffic. Cause: this may be caused by transmission output speed signal noise leading to adaptations being out of range for 3-2-1 and 2-1 down-shift."
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.