Service bulletin T-SB-0023-15

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	10111559
Published by NHTSA	2017-08-14
Manufacturer's number	T-SB-0023-15
Manufacturer's date	2015-05-12
NHTSA component	POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

NHTSA's summary

TSB: Some 2013 - 2014 model year RAV4 vehicles may exhibit a brief shudder intermittently while driving under light loads between approximately 25 and 50 mph. The torque converter and Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic have been modified to reduce the possibility of this condition occurring. Please follow the Repair Procedure below 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

Electrical system, Transmission and driveline, Automatic transmission, Software, Torque converter, Transmission control module

Vehicles listed
TOYOTA RAV4	2013, 2014

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
ZH1-Toyota POL17	2019-09-03. Service bulletin. Warranty Enhancement 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.
T-SB-0023-15-Rev	2018-12-17. Service bulletin. TSB: REVISION NOTICE August 31, 2017 Rev1: ? Applicability has been updated to include 2015 model year RAV4 vehicles. ? Production Change Information has been added. ? The Parts Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2013 ? 2015 model year RAV4 vehicles may exhibit a brief shudder intermittently while driving under light loads between approximately 25 and 50 mph. The torque converter and Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic have been modified to reduce the possibility of this condition from occurring. Follow the Repair Procedure below to address this condition.
ZH1_Toyota POL17	2018-07-16. Service bulletin. 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.
ZH1 Updated U760	2018-06-11. Service bulletin. Dealer Letter: December 13, 2017. Description of the covered transmissions has been corrected. In these vehicles, Toyota has received some reports where vehicles 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. Although the Torque Converter is covered by Toyota?s New Vehicle Limited Warranty for 5 years or 60,000 miles (whichever occurs first), we at Toyota care about the customers? ownership experience. Toyota is now extending the warranty coverage for repairs related to Torque Converter Shudder. The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
T-TT-0392-16 Rev	2018-06-11. Service bulletin. TT: Some customers may experience Bluetooth connection issues after updating the Android Operating System to 5.x.x (Lollipop) or later.
T-TT-0355-15	2018-04-23. Service bulletin. TechTip: Condition: Customers may experience connectivity issues when the following conditions are met: The customer?s iPhone is operating on iOS9 firmware The customer?s iPhone is connected to the vehicle via Bluetooth. If the vehicle is equipped with a Fujitsu-Ten brand head unit, the customer may complain of one or more of the following: When playing media via Bluetooth audio and pressing the ?Pause? button on the phone, media playback pauses for one second before resuming playback. Yelp searches return an error when search criteria includes a special character, e.g. !,$,#. If the vehicle is equipped with a Pioneer brand head unit, the customer may complain of one or more of the following: The customer?s iPhone does not support the album image feature. When playing media via Bluetooth audio, one or more of a number of play/pause issues occur.
T-SB-0163-13 Rev	2018-04-23. Service bulletin. TSB: Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type units.
T-TT-0374-15	2018-04-23. Service bulletin. TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0385-16	2018-04-23. Service bulletin. Tech Tip: This Tech Tip is being provided to bring attention to the new location of the Entune/NAV/Map Update and Upgrade USB Directory. Click on the TIS tab, Diagnostics tab, Telematics tab, and the document is now located under the reference documents sections. This change has occurred to help speed up the updating process of this document.
TTT-0337-15 Rev1	2018-04-23. Service bulletin. TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.