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Service bulletin T-SB-0047-19 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 id10179765
Published by NHTSA2020-09-14
Manufacturer's numberT-SB-0047-19 Rev
Manufacturer's date2020-08-12
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

NHTSA's summary

TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 10) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system.

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, Equipment and accessories, Software

Vehicles listed
TOYOTA 4RUNNER2020
TOYOTA AVALON2019, 2020
TOYOTA AVALON HYBRID2019 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA C-HR2019
TOYOTA CAMRY2018, 2019, 2020
TOYOTA CAMRY HYBRID2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA COROLLA2019, 2020
TOYOTA HIGHLANDER2020
TOYOTA MIRAI2018, 2019, 2020
TOYOTA RAV42019, 2020
TOYOTA RAV4 HYBRID2019 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA SEQUOIA2020
TOYOTA SIENNA2018, 2019, 2020
TOYOTA TACOMA2020
TOYOTA TUNDRA2020

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

Recalls for the same vehicles and component
18V6850002018-10-04. ELECTRICAL SYSTEM:SOFTWARE; AIR BAGS

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
TSB0026202023-12-26. Service bulletin. TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre-determined traveling distance. It is recommended to disable the PCS and DRCC systems on vehicles that have been modified (ride height, oversized wheels/tires, brush bars, etc.) in a way that potentially disrupts the functionality of these systems. Vehicle owner?s written consent is required before performing the calibration to permanently disable the PCS and DRCC systems. Follow the Repair Procedure in this bulletin to disable the PCS and DRCC systems.
T-TT-0678-21 Rev2023-11-27. Service bulletin. TT: Some 19CY LG DCM equipped vehicles may not be able to complete the firmware update due to not having an active account or waived services during the trial. Follow the steps below to enable ?Temp DCM Activation?.
T-SB-0043-21 Rev2022-02-14. Service bulletin. TSB: Some 2020 model year vehicles equipped with Audio Plus (version 1060) or Premium Audio (version 1060) or earlier may exhibit the following condition: ?Distorted screen when using Apple CarPlay® while making a hands-free phone call. Some 2020 model year vehicles equipped with Audio Plus (version 1021) or Premium Audio (version 1021) or earlier may exhibit one or more of the following conditions: ?Barge in function defaulted to OFF. ?Limited phone book grammar. ?Difficult Hand Free operation. ?Abnormal Electronic Owner?s Manual operation. ?Music does not automatically resume when using Android Auto?. ?Cover art is not displayed. ?Vehicle position is not sent to Destination Assist server. ?System inoperative after using the return button when using voice recognition. Some 2020 model year vehicles equipped with Audio Plus (version 1035) or Premium Audio (version 1035) or earlier may exhibit one or both of the following conditions: ?Abnormal screen play while using Apple CarPlay® (primarily during phone calls). ?Poor sound quality during phone calls while using Apple CarPlay®. Some 2020 model year vehicles equipped with Audio Plus (version 1047) or Premium Audio (version 1047) or earlier may exhibit one or more of the following conditions: ?USB audio does not resume after ignition cycle. ?Intermittent rebooting. ?Bluetooth disconnecting during a phone call when using Apple CarPlay®. ?Intermittent screen freezing. ?Navigation intermittently will not boot up. ?Home Screen Audio widget is blank after a Destination Assist call. ?Song, artist, or album data missing. ?Abnormal clock operation. ?Apple CarPlay® intermittently inoperative. ?Radio takes a long time to boot up. A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software.
T-SB-0065-21 Rev2021-10-25. Service bulletin. TSB: Some 2019 ? 2020 model year RAV4 Adventure and Limited grade AWD vehicles may exhibit an abnormal buzz/groan noise from the front transfer case at 20 ? 30 mph when accelerating from a stop and/or at 20 ? 13 mph on deceleration after driving the vehicle for 15 ? 20 minutes or more. This condition occurs with Normal drive mode selected during disconnect/connect timing of the AWD system. Follow the procedures in this bulletin to address this condition.
T-TT-0600-20 Rev2020-12-21. Service bulletin. TT: Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low. These settings may need to be reapplied any time the phone is paired to a new head unit, a phone update is applied, or the phone is un-paired and re-paired.
T-TT-0629-202020-11-30. Service bulletin. TT: Some 2020 ? 2021 model year C-HR, RAV4, RAV4 HV, Sequoia, Tundra and 2021 model year Avalon, Avalon HV, Prius, Prius Prime, and RAV4 Prime vehicles may exhibit inoperative Apple CarPlay® with only iPhone® 12 devices (iPhone® 12, iPhone® 12 Max, iPhone® 12 Pro, or iPhone® 12 Pro Max).
T-TT-0566-19 Rev2020-09-14. Service bulletin. TT: Some vehicles may display an error message that displays ?New software is not compatible with the system. Contact your dealer.? after the Display Control Unit (DCU) or navigation Multimedia Extension Unit (MEU) is replaced if the Phase 3 (CarPlay) retrofit is not applied prior to replacement. Panasonic exchange MEU and DCU parts are now being shipped with Phase 3 software installed.
T-SB-0046-20 Rev2020-09-14. Service bulletin. TSB: Some 2018 ? 2019 model year Camry, Camry Hybrid, and Sienna vehicles equipped with Entune? 3.0 Audio Plus (version 1010) or Entune? 3.0 Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Abnormal navigation operation. ?Screen freezing. ?Intermittent rebooting. ?Abnormal clock operation. ?Abnormal Apple CarPlay® operation. ?Echoing during Apple CarPlay® phone call. ?Abnormal Pandora® operation after answering WhatsApp phone call. ?Alexa® app inoperative when using iOS devices.
T-TT-0566-19 Rev2020-09-14. Service bulletin. TT: Some vehicles may display an error message that displays ?New software is not compatible with the system. Contact your dealer.? after the Display Control Unit (DCU) or navigation Multimedia Extension Unit (MEU) is replaced if the Phase 3 (CarPlay) retrofit is not applied prior to replacement. Panasonic exchange MEU and DCU parts are now being shipped with Phase 3 software installed.
T-SB-0047-19 Rev2020-09-14. Service bulletin. TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 10) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system.