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Service bulletin ZLH_Lexus POL17-

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 id10142902
Published by NHTSA2018-07-16
Manufacturer's numberZLH_Lexus POL17-
Manufacturer's date2018-06-20
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Warranty Policy Bulletin: Lexus has received reports of customer concerns regarding the illumination of the check engine light (Malfunction Indicator Light) due to moisture/water in the Air Injection Pumps and/or Air Switching Valves.

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

Vehicles listed
LEXUS GX4602010 to 2013

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