# Service bulletin 24TC03

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.

- Type: Service bulletin
- NHTSA id: 11005102
- Published by NHTSA: 2024\-07\-23
- Manufacturer's number: 24TC03
- Manufacturer's date: 2024\-06\-10
- Campaign id or software version: 24TC03
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

The Data Communication Module \(DCM\), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005102-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11005102-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2023 TOYOTA COROLLA
- 2023 TOYOTA COROLLA CROSS
- 2023 TOYOTA COROLLA HATCHBACK
- 2023 TOYOTA COROLLA HYBRID
- 2023 TOYOTA CROWN
- 2023 TOYOTA GR COROLLA
- 2023 TOYOTA HIGHLANDER
- 2023 TOYOTA HIGHLANDER HYBRID
- 2023 TOYOTA PRIUS
- 2023 TOYOTA RAV4
- 2023 TOYOTA RAV4 HYBRID
- 2023 TOYOTA RAV4 PRIME
- 2023 TOYOTA VENZA HYBRID

## Recalls for the same vehicles and component

- [26V049000](/recalls/nhtsa/26V049000.md), 2026-01-28: ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS; LATCHES/LOCKS/LINKAGES:DOORS:LATCH
- [25V595000](/recalls/nhtsa/25V595000.md), 2025-09-11: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2024228](/recalls/tc/2024228.md), 2024-04-17: Electrical
- [24V274000](/recalls/nhtsa/24V274000.md), 2024-04-17: LATCHES/LOCKS/LINKAGES:DOORS:LATCH; ELECTRICAL SYSTEM:WIRING:SWITCHES/KNOBS/BUTTONS
- [23V864000](/recalls/nhtsa/23V864000.md), 2023-12-20: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; AIR BAGS:FRONTAL
- [23V384000](/recalls/nhtsa/23V384000.md), 2023-05-30: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; AIR BAGS:FRONTAL

## Other bulletins for the same vehicles and component

- [22TE09](/bulletins/11033412.md), 2026-06-04, Warranty extension: ELECTRICAL SYSTEM. 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\-0029\-26](/bulletins/11032486.md), 2026-05-08, Over\-the\-air update: ELECTRICAL SYSTEM. A new head unit software update is available for 2023 – 2024 model year RAV4, RAV4 Hybrid, and RAV4 Prime vehicles equipped with Toyota Multimedia \(earlier than version 1861\). This software update includes the following improvements: • Usability of CarPlay® exit. • User Profile. • User interface. • Cloud navigation. • Intelligent assistant voice recognition. • Bug fixes.
- [T\-SB\-0021\-26](/bulletins/11031158.md), 2026-04-08, Service bulletin: ELECTRICAL SYSTEM. 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\-TT\-0797\-26](/bulletins/11028713.md), 2026-02-11, Service bulletin: ELECTRICAL SYSTEM. Some RAV4 vehicles power seat where the automatic seat adjustment by the memory function does not work.
- [22TE09](/bulletins/11028711.md), 2026-02-11, Warranty extension: ELECTRICAL SYSTEM. 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\-0083\-25](/bulletins/11026306.md), 2025-12-05, Service bulletin: ELECTRICAL SYSTEM. A new head unit software update is available for 2022 – 2025 model year Tundra, and Tundra Hybrid; 2023 – 2025 model year Corolla Cross, Corolla Cross Hybrid, Highlander, Highlander Hybrid, Mirai, and Sequoia Hybrid vehicles equipped with Toyota Multimedia versions earlier than version 2230.
- [25TD01](/bulletins/11024098.md), 2025-10-08, Service campaign: ELECTRICAL SYSTEM. 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.
- [25TD01](/bulletins/11024097.md), 2025-10-08, Service bulletin: ELECTRICAL SYSTEM. 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
- [25TD01](/bulletins/11024096.md), 2025-10-08, Service campaign: ELECTRICAL SYSTEM. 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.
- [25TD01](/bulletins/11024090.md), 2025-10-08, Service bulletin: ELECTRICAL SYSTEM. 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

JSON: [/v1/bulletins/11005102](/v1/bulletins/11005102)

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