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Service bulletin ZG7_Toyota 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 id10142892
Published by NHTSA2018-07-16
Manufacturer's numberZG7_Toyota POL17
Manufacturer's date2018-06-20
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW

NHTSA's summary

Warranty Policy Bulletin: Toyota has received reports of customer concerns where the vehicles rear hatch glass broke during defroster operation.

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

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
TOYOTA 4RUNNER2003, 2004, 2005, 2006, 2007, 2008, 2009

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

Other bulletins for the same vehicles and component
T-TT-0468-17-Rev2019-03-25. Service bulletin. TT: HVAC drain tube is found to be blocked/clogged.
T-SB-0142-13 Rev2018-04-02. Service bulletin. TSB: REVISION NOTICE November 10, 2016 Rev2: ? Applicability has been updated to include 2016 ? 2017 model year Toyota vehicles. ? Parts Information section has been updated. Some 2004 ? 2017 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
T-TT-0246-13 Rev2018-04-02. Service bulletin. Tech Tip: Tips for writing a DPR (Dealer Product Report) on manufacturing issues for windows and windshields.
T-TT-0246-132018-04-02. Service bulletin. Tips for writing a DPR (Dealer Product Report) on manufacturing issues for windows and windshields.
T-TT-0269-132018-04-02. Service bulletin. The appearance of spots in tempered glass (when viewed at certain angles) is the result of the heat treating and quick quenching process during manufacturing.
TS-BO030-01 Obso2018-04-02. Service bulletin. This bulletin is now obsolete. Please see T-SB-0185-13.
T-SB-0185-132018-04-02. Service bulletin. The following procedures are recommended during routine maintenance or in the event of a customer concern for wiper performance.
T-SB-0142-132018-04-02. Service bulletin. Some 2004 ? 2014 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
T-SB-0189-172018-04-02. Service bulletin. TSB: Some 2003 ? 2009 model year 4Runner vehicles may exhibit back door glass "broken" without external impact. This condition may be associated with rear window defogger usage before glass breakage. Updated rear glass has been developed to address this condition.
ZG7_POL17-03_War2018-04-02. Service bulletin. Warranty Policy Bulletin POL17-03: Toyota has received reports of customer concerns where the vehicles rear hatch glass broke during defroster operation.