Cadillac CT4 2020 — technical service bulletin
Bulletin PIC6389B · NHTSA communication 10210332 · issued Mar 15, 2022
Technical service bulletin
communication type
Electrical System
component
2020
model years
2
vehicle entries
Official summary
This Preliminary information communicates a parts restriction is in place for the Long Range Radar Module on 2020 Cadillac CT4 and CT5.
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.