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Service bulletin L-SB-0008-21 Rev

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10198143
Published by NHTSA2021-06-21
Manufacturer's numberL-SB-0008-21 Rev
Manufacturer's date2021-05-20
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING

NHTSA's summary

TSB: Some 2018 ? 2021 model year RX 350 vehicles may exhibit a MIL ON condition with one or more of the following companion cylinder misfire Diagnostic Trouble Code (DTC) combinations: ?P030100 and P030400 (Cylinders 1 and 4 Misfires Detected). ?P030200 and P030500 (Cylinders 2 and 5 Misfires Detected). ?P030300 and P030600 (Cylinders 3 and 6 Misfires Detected). One or more of the following ancillary DTCs may also be present: ?P030027 (Random/Multiple Cylinder Misfire Detected [Emission] Signal Rate of Change Above Threshold). ?P030085 (Random/Multiple Cylinder Misfire Detected [Over Temperature] Signal Above Allowable Range). Follow the Repair Procedure in this bulletin to address this condition.

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, Equipment and accessories

Trouble codes named

P0300, P0301, P0302, P0303, P0304, P0305, P0306

Vehicles listed
LEXUS RX3502018 to 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.