Cadillac CT4 2021–2022 — technical service bulletin
Bulletin 22-NA-191 · NHTSA communication 10222835 · issued Sep 27, 2022
Technical service bulletin
communication type
Vehicle Speed Control
component
2021–2022
model years
7
vehicle entries
Official summary
This service bulletin provides repair information to correct a customer concern of Super Cruise Enhancement: Trailering and Active Lane Change failed installation.
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.