Service bulletins for the 2024 Lexus NX
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.
103 on file from NHTSA, as of 2026-10-19.
About P0420 on the 2024 Lexus NX: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0420 are shown. Show all
| L-SB-0030-25 | 2025-08-08. Service bulletin. ELECTRICAL SYSTEM. Some 2024 model year NX 350 vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P042000 (Catalyst System Efficiency Below Threshold Bank 1) present. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.