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Service bulletin T-TT-0573-19

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 id10166023
Published by NHTSA2019-10-15
Manufacturer's numberT-TT-0573-19
Manufacturer's date2019-09-16
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

TT: Some customers may experience a call failure when attempting to call a conference call number that has been saved in their phonebook (ex: ?8005550122,,,1.,2;;;2#?). This issue is caused by changes to the Bluetooth in the iOS 13 update and may be resolved in a future iOS 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

Vehicles listed
TOYOTA CAMRY2014, 2015, 2016, 2017
TOYOTA COROLLA2014, 2015, 2016, 2017, 2018, 2019
TOYOTA PRIUS2020
TOYOTA PRIUS C2014, 2015, 2016, 2017
TOYOTA PRIUS PRIME2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA RAV42014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA SIENNA2018, 2019, 2020
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
20235892023-11-01. Electrical
23V7340002023-11-01. ELECTRICAL SYSTEM:12V/24V/48V BATTERY
20217232021-11-24. Electrical
21V6880002021-09-02. EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM:WIRING
20V4100002020-07-15. EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM:WIRING
20173632017-07-20. Electrical
20133522013-10-10. Electrical

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
22TE092026-06-04. Warranty extension. Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.
T-SB-0106-22 Rev22026-02-11. Service bulletin. OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
T-SB-0001-262026-02-11. Service bulletin. Some 2018 – 2024 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.
T-TT-0797-262026-02-11. Service bulletin. Some RAV4 vehicles power seat where the automatic seat adjustment by the memory function does not work.
22TE092026-02-11. Warranty extension. Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyota’s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing extended coverage under this Customer Support Program for repairs related to excessive corrosion to the wire harness connections at the Rear Motor Generator. Excessive corrosion can cause AM Radio Static during certain drive cycles, or the vehicle may not start.
25TD012025-10-08. Service campaign. The subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.
25TD012025-10-08. Service bulletin. TECHNICAL INSTRUCTIONS FOR 25TD01 REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2019 - 2024 RAV4 HV (AWD), 2021- 2024 RAV4 PRIME, 2020-2024 HIGHLANDER HV (AWD), 2021-2024 VENZA HV, 2023-2024 CROWN HV VEHICLES
25TD012025-10-08. Service campaign. The subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.
25TD012025-10-08. Service bulletin. TECHNICAL INSTRUCTIONS FOR 25TD01 REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2019 - 2024 RAV4 HV (AWD) 2021- 2024 RAV4 PRIME 2020-2024 HIGHLANDER HV (AWD) 2021-2024 VENZA HV 2023-2024 CROWN HV
25TD012025-10-08. Service campaign. The subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Underwire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start.