Service bulletin ZH1_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)
Type	Service bulletin
NHTSA id	10141598
Published by NHTSA	2018-06-18
Manufacturer's number	ZH1_Toyota POL17
Manufacturer's date	2018-05-21
NHTSA component	POWER TRAIN

NHTSA's summary

Warranty Policy Bulletin: Toyota has received reports of customer concerns in which the vehicle may exhibit a brief intermittent shudder during torque converter flex lock up. This shudder may be observed while driving under light throttle conditions between approximately 25-50 mph.

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

Transmission and driveline

Vehicles listed
TOYOTA PRIUS	2013, 2014, 2015

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

Recalls for the same vehicles and component
2018546	2018-10-05. Powertrain
2017558	2017-11-15. Powertrain
2014042	2014-02-12. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
23TE03	2023-07-31. Service bulletin. DP: The Customer Confidence Program is a component of a class action settlement that includes several elements of coverage. The Customer Confidence Program provides coverage as it applies to the Intelligent Power Module (IPM). The specific condition covered by this Customer Confidence Program 23TE03 is failure of the IPM located inside the inverter assembly of the hybrid system indicated by DTCs P0A94, P0A1A, P324E, and/or P3004. If any of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle will enter Fail Safe Mode.
T-SB-0134-16-Rev	2019-09-03. Service bulletin. TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections have been updated. October 30, 2017 Rev1: ? Applicability has been updated to include 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Service Bulletin No. T-SB-0012-13 is obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Techstream ECU flash reprogramming process and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard (CUW). Flash calibration updates can only be applied to the vehicle/ECU combination for which they are intended. ECUs have internal security that will not allow them to be programmed with another ECU?s information. NOTE ECU is a Toyota term used to describe integrated computerized devices responsible for managing the operation of a system or subsystem. For the purposes of this bulletin, the term ?ECU? is used as a generic label for the following SAE J1930 standard references: ? Powertrain Control Module (PCM) ? Engine Control Module (ECM) ? Transmission Control Module (TCM) ? Any other Toyota specific control unit
ZE3_Toyota POL14	2018-10-15. Service bulletin. Warranty Policy Bulletin: Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will illuminate and the vehicle will enter fail safe mode.
T-SB-0391-08 Rev	2018-04-23. Service bulletin. This bulletin contains general vehicle pulling diagnosis and repair procedures along with specific information to help correct pulling complaints.
ZE3_Warranty Pol	2018-04-02. Service bulletin. Warranty Policy Bulletin: Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail.
ZE3_Dealer Packa	2018-04-02. Service bulletin. Warranty Dealer Package: Warranty Enhancement Program to extend the warranty coverage for repairs related failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable).
T-SB-0147-16	2018-04-02. Service bulletin. TSB: Some 2013 ? 2015 Prius PHV, Prius and 2013 ? 2016 Prius V vehicles may exhibit a vibration due to rough idle and/or tapping noise from the HV transaxle at cold start. The check engine light may also illuminate with (DTC) P0300, P0301, P0302, P0303, P0304 (Random/Multiple Cylinder Misfire Detected). The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0041-15	2017-08-14. Service bulletin. TSB: Some 2010 - 2013 model year Prius and 2012 - 2013 model year Prius V vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code(s) (DTCs) P0A0F (Engine Failed to Start), caused by Purge VSV/PCV line separation from the throttle body housing. One or more of the following DTCs may also set: * P3190 (Poor Engine Power) * P3191 (Engine Does NOT Start) * P0171 (System Too Lean [Bank One]) Replace the Purge VSV (Vacuum Switching Valve Assembly) and reprogram the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) with the latest calibration to address this condition.
T-SB-0041-15	2017-08-14. Service bulletin. TSB: Some 2010 - 2013 model year Prius and 2012 - 2013 model year Prius V vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code(s) (DTCs) P0A0F (Engine Failed to Start), caused by Purge VSV/PCV line separation from the throttle body housing. One or more of the following DTCs may also set: * P3190 (Poor Engine Power) * P3191 (Engine Does NOT Start) * P0171 (System Too Lean [Bank One]) Replace the Purge VSV (Vacuum Switching Valve Assembly) and reprogram the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) with the latest calibration to address this condition.
ZE3_WEP_Dealer D	2017-08-01. Service bulletin. Electronic Communication: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related to failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable).