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Service bulletin T-TT-0442-17_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 id10169334
Published by NHTSA2019-12-16
Manufacturer's numberT-TT-0442-17_Rev
Manufacturer's date2019-11-18
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

NHTSA's summary

TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active after the initial trial period. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as ?ATX webserver is Down? or ?ATX error? will be displayed.

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, Labels and manuals

Vehicles listed
TOYOTA 4RUNNER2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA AVALON2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA AVALON HYBRID2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA CAMRY2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA CAMRY HYBRID2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA COROLLA2019, 2020
TOYOTA COROLLA HYBRID2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA HIGHLANDER2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA HIGHLANDER HYBRID2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA LAND CRUISER2010, 2011
TOYOTA LAND CRUISER2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA PRIUS2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
TOYOTA PRIUS PLUG-IN HYBRID2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA PRIUS PRIME2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA PRIUS V2012, 2013, 2014, 2015, 2016, 2017
TOYOTA PRIUS V2018 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA RAV42019, 2020
TOYOTA RAV4 HYBRID2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
TOYOTA SEQUOIA2020
TOYOTA SIENNA2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 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
25V8760002025-12-17. EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
22V4800002022-07-06. EQUIPMENT:OTHER:LABELS
20217232021-11-24. Electrical
21V6880002021-09-02. EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM:WIRING
20205042020-10-22. Label
20V4100002020-07-15. EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM:WIRING
20202842020-06-25. Electrical
20201492020-04-08. Electrical
20196512019-12-20. Label
19V8760002019-12-11. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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-0021-262026-04-08. Service bulletin. Some 2020 – 2024 model year Highlander and Highlander Hybrid vehicles may exhibit a condition in which the air conditioner does not cool due to a leak and/or corrosion in the rear underbody air conditioner tube and accessory assembly. The anti-corrosion material has been updated to reduce the possibility of this condition.
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