Cadillac XT5 2018–2021 — technical service bulletin
Bulletin 21NA039 · NHTSA communication 10191216 · issued Mar 16, 2021
Technical service bulletin
communication type
Equipment
component
2018–2021
model years
5
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of Service Theft Deterrent Message Displayed in DIC.
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.