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Service bulletins for the 2017 Cadillac CTS

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.

1396 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Catalytic converter are shown. Show all

Bulletins, newest first
060601010D2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. This informational bulletin explains how the catalytic converters may need an inspection, cleaning or replacement if debris have entered the exhaust system.
18NA0312018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT. This technical bulletin provides a procedure to install catalytic converter bracket nuts if found the cause of the noise or install cup washers to the actuator arms of the turbos if found the cause of the noise.

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