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Service bulletin T-TT-0501-18_Rev

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 id10142909
Published by NHTSA2018-07-16
Manufacturer's numberT-TT-0501-18_Rev
Manufacturer's date2018-06-22
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

TT: Some customers may experience a voice recognition inoperative condition or abnormal Entune operation after performing an Entune update.

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, Software

Vehicles listed
TOYOTA CAMRY2016, 2017
TOYOTA COROLLA2017, 2018
TOYOTA PRIUS C2017, 2018
TOYOTA RAV42016, 2017, 2018
TOYOTA RAV4 HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA redundant RAV4 HV2016

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
JSD-0821182021-06-14. Service bulletin. An electric control unit has improper programming.
J0D-0328182021-06-14. Service bulletin. Transmission has improper programming.
L-SB-0047-18 Rev2020-09-14. Service bulletin. TSB: Some 2018 ? 2020 model year Lexus vehicles with Panasonic navigation (version 1050) or earlier may exhibit one or more of the following conditions: ?The analog clock shows one hour ahead, then immediately adjusts back one hour after ACC ON. ?No Sound and Reset when playing Spotify via Bluetooth Audio. Some 2018 ? 2020 model year Lexus vehicles with Panasonic navigation (version 1030) or earlier may exhibit one or more of the following conditions: ?WiFi becomes inoperative/could not be enabled. ?Navigation reset while driving. ?Navigation shows vehicle in the wrong location. Some 2019 model year ES 300h and ES 350 vehicles with Panasonic navigation (version 1000) may exhibit one or more of the following conditions: ?No sound after an incoming Bluetooth® phone call. ?Excessive severe weather alert messages. A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to address these conditions.
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