LEXUS
L-SB-0030-25
Manufacturer communications
- Publication date
- 2025-07-23
- Received by NHTSA
- 2025-08-08
- NHTSA record numbers
- 11021725
Manufacturer summary
Original wording in English
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.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Lexus
P042000Catalyst System Efficiency Below Threshold Bank 1Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Lexus | NX | 2024 |