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Service bulletin ZH4_Dealer Daily

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 id10132437
Published by NHTSA2018-04-02
Manufacturer's numberZH4_Dealer Daily
Manufacturer's date2017-08-03
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; LATCHES/LOCKS/LINKAGES:DOORS:LATCH

NHTSA's summary

Dealer Daily Message: Extension of Warranty Coverage for the Sliding Door Front Lock Assemblies. The Dealer Letter for Warranty Enhancement Program ZH4 is now available on TIS.

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

Equipment and accessories, Labels and manuals, Latches and locks, Door latch

Vehicles listed
TOYOTA SIENNA2011, 2012, 2013, 2014, 2015, 2016

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
ZH4_Toyota POL172018-07-16. Service bulletin. Warranty Policy Bulletin: Toyota has received a number of reports regarding sliding door front lock assemblies on certain 2011?2016 model year Sienna vehicles. In these reports, during the closing operation of the left and/or right side sliding door, the door would not completely close and latch due to corrosion on the latch lever pin of the door?s front lock assembly.
T-SB-0208-172018-07-02. Service bulletin. TSB: Some 2011 ? 2016 model year Sienna vehicles may exhibit Sliding Door Front and Rear Latches simultaneously NOT latching due to the PSD 25 Amp fuse becoming open. APPLICABLE WARRANTY: This repair is covered under the Toyota Basic Warranty. This warranty is in effect for unlimited mileage and unlimited months of service. Warranty application is limited to occurrence of the specified condition described in this bulletin.
T-TT-0356-152018-04-23. Service bulletin. TT: Sliding Door will not latch manually in the closed position due to either the front and or/rear lock malfunctioning. Please see link references of video for example condition.
ZH5_Dealer Daily2018-04-02. Service bulletin. Dealer Daily Message: Extension of Warranty Coverage for the Power Sliding Door Rear Lock Assemblies. The Dealer Letter for Warranty Enhancement Program ZH5 is now available on TIS.
ZH5_Toyota POL172018-04-02. Service bulletin. Warranty Policy Bulletin: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2015 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open positon. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH5_Dealer Lette2018-04-02. Service bulletin. Dealer Letter: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2015 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open positon. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH5_Dealer Email2018-04-02. Service bulletin. Dealer Email: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2015 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open positon. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH5_Region Lette2018-04-02. Service bulletin. Region Letter: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2015 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open positon. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH5_Region Email2018-04-02. Service bulletin. Region Email: Toyota has received a number of reports regarding the power sliding door rear lock assemblies on certain 2011 ? 2015 model year Sienna vehicles. In these reports, corrosion on the position sensor of the left and/or right power sliding door rear lock assembly caused that door to exhibit one or more of the abnormal operations described below: ? During power mode closing operation, as the power sliding door reaches the nearly closed position, the door reverses and moves toward the open positon. ? During power mode closing operation, the power sliding door cannot completely close and latch. ? The power mode closing operation of the power sliding door is inoperative.
ZH4_Toyota POL172018-04-02. Service bulletin. Warranty Policy Bulletin: Toyota has received a number of reports regarding sliding door front lock assemblies on certain 2011 ? 2016 model year Sienna vehicles. In these reports, during the closing operation of the left and/or right side sliding door, the door would not completely close and latch due to corrosion on the latch lever pin of the door?s front lock.