Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Cadillac Ats 2015–2019technical service bulletin

Bulletin 18NA355 · NHTSA communication 10161881 · issued May 21, 2019

Technical service bulletin
communication type
Power Train
component
2015–2019
model years
50
vehicle entries

Official summary

This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition.

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.