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Service bulletins for the 2018 Cadillac CT6

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1096 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Turbocharger or supercharger are shown. Show all

Bulletins, newest first
174082021-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Potential turbo turbine wheel failure/MIL illuminated with DTC P0299 or P16E7. Correction Reprogram ECM with a new calibration.
PIP5387D2018-12-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This PI Communicates that there is a parts restriction on the toubochargers for this vehicle. The dealer must call PQC to order a replacement turbocharger.
PI0653E2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.