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June 25, 2025 Service bulletin

Some 2021 – 2024 model year ES 250 and 2022 – 2024 model year NX 250 vehicles with A25A-FKS engines may...

Lexus technical service bulletin L-SB-0009-24 Rev1 for 2021-2024 Lexus ES and 2022-2024 Lexus NX.

Bulletin number
L-SB-0009-24 Rev1 (L-SB-0009-24 Rev1)
Component
Electrical system
Summary
Some 2021 – 2024 model year ES 250 and 2022 – 2024 model year NX 250 vehicles with A25A-FKS engines may have a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) upon cold soak start up with engine coolant temperatures between 14°F – 41°F: •P030027 – Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold •P030000 – Random/Multiple Cylinder Misfire Detected •P030100 – Cylinder 1 Misfire Detected •P030200 – Cylinder 2 Misfire Detected •P030300 – Cylinder 3 Misfire Detected •P030400 – Cylinder 4 Misfire Detected

Owners of these vehicles have filed 31 complaints in the electrical category.

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