Cadillac CT4 2021 — technical service bulletin
Bulletin N23-241156 · NHTSA communication 10243572 · issued Sep 13, 2023
Technical service bulletin
communication type
Back Over Prevention
component
2021
model years
2
vehicle entries
Official summary
(There may be future updates under this same release number.) Your vehicle keeps getting better. This vehicle software update includes the following: Refinements: â ¢Updates made to the overall vehicle software update process. Better Never Stopsâ ¢
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.