# Service bulletin T\-SB\-0014\-24

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: 10253231
- Published by NHTSA: 2024\-04\-15
- Manufacturer's number: T\-SB\-0014\-24
- Manufacturer's date: 2024\-03\-12
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

TSB: Some 2023 model year Crown vehicles may exhibit a delay and/or reduction in output of warm air from the HVAC system while the vehicle engine is at normal operating temperatures \(over 170°F\). This condition usually occurs immediately after a hot restart, while the vehicle is in Ready ON, but before the internal combustion engine starts. The Engine Control Module \(ECM\) \(SAE term: Powertrain Control Module/PCM\) logic has been modified to reduce the possibility of this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253231-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253231-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 TOYOTA CROWN

## Recalls for the same vehicles and component

- [25V595000](/recalls/nhtsa/25V595000.md), 2025-09-11: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## 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.
- [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.
- [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
- [25TD01](/bulletins/11024089.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.
- [22TE09](/bulletins/11024083.md), 2025-10-08, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR CUSTOMER SUPPORT PROGRAM 22TE09 HV FLOOR UNDER WIRE HARNESS AND REAR TRACTION MOTOR CABLE CORROSION CERTAIN 2023 \- 2024 MODEL YEAR CROWN
- [22TE09](/bulletins/11024080.md), 2025-10-08, Service campaign: 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\-0058\-23 Rev1](/bulletins/11020657.md), 2025-07-10, Service campaign: ELECTRICAL SYSTEM. The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.

JSON: [/v1/bulletins/10253231](/v1/bulletins/10253231)

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