Service bulletins for the 2024 Cadillac XT4
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.
522 on file from NHTSA, as of 2026-10-19.
About P149E on the 2024 Cadillac XT4: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P149E are shown. Show all
| 25-NA-249 | 2025-10-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This service bulletin provides the correction to the condition of the Malfunction Indicator Lamp being illuminated and/or the DTC P149E set. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.