Service bulletin L-SB-0038-23
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10241397 |
| Published by NHTSA | 2023-08-28 |
| Manufacturer's number | L-SB-0038-23 |
| Manufacturer's date | 2023-07-12 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
TSB: Some 2023 model year ES 250 vehicles equipped with an A25A-FKS engine may exhibit a condition in which a popping noise is present when the engine is running.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine
| LEXUS ES | 2023 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| L-SB-0021-25 | 2026-04-08. Service bulletin. OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
|---|---|
| L-SB-0021-25 | 2026-03-07. Service bulletin. OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| L-TT-0336-24 Rev1 | 2024-12-07. Service bulletin. After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket. To prevent this condition from occurring, it is recommended that the jumper cables be attached as described in the owner’s manual. |
| L-SB-0043-24 | 2024-12-07. Service bulletin. Some 2023 – 2024 model year ES 250 and ES 300h vehicles equipped with an A25A-FKS or an A25A-FXS engine may exhibit an oil leak that originates between the oil pan sub-assembly and the stiffening crankcase assembly. |
| L-TT-0336-24 | 2024-11-08. Service bulletin. After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket. |
| LSB000924 | 2024-04-01. Service bulletin. TSB: 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 Follow the Repair Procedure in this bulletin to address these conditions. |
| LSB006023 | 2023-12-26. Service bulletin. TSB: Some 2019 ? 2023 model year ES 350, 2018 ? 2023 model year IS 350, IS 300, RC 350, RC 300, 2016 ? 2022 model year RX 350, and 2016 ? 2020 model year GS 350 vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle. Follow the Repair Procedure in this bulletin to improve this condition. |