# Service bulletin T\-SB\-0011\-21

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: 10188907
- Published by NHTSA: 2021\-03\-15
- Manufacturer's number: T\-SB\-0011\-21
- Manufacturer's date: 2021\-02\-25
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

TSB: This Service Bulletin provides parts information and repair procedures for wire harnesses, wire terminals, and connectors for 2020\-2021 model year Supra vehicles.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188907-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188907-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2020 to 2021 TOYOTA SUPRA

## Recalls for the same vehicles and component

- [26V056000](/recalls/nhtsa/26V056000.md), 2026-01-30: ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [2025515](/recalls/tc/2025515.md), 2025-09-26: Electrical
- [25V636000](/recalls/nhtsa/25V636000.md), 2025-09-23: ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY

## Other bulletins for the same vehicles and component

- [24TD04](/bulletins/11007452.md), 2024-09-07, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR LIMITED\-SERVICE CAMPAIGN 24TD04 DATA COMUNICATION MODULE \(DCM\) UPDATE CERTAIN 2020 \- 2023 SUPRA
- [24TD04](/bulletins/11007451.md), 2024-09-07, Service campaign: ELECTRICAL SYSTEM. Due to incorrect software in the Data Communication Module \(DCM\) in your vehicle, the DCM cannot connect to the 4G cellular service. Therefore, after the 3G cellular service was sunset, voice communication with service providers when using connected services like Emergency call and Roadside assistance, is not available.
- [24TD04](/bulletins/11007450.md), 2024-09-07, Service campaign: ELECTRICAL SYSTEM. Due to incorrect software in the Data Communication Module \(DCM\) in your vehicle, the DCM cannot connect to the 4G cellular service. Therefore, after the 3G cellular service was sunset, voice communication with service providers when using connected services like Emergency call and Roadside assistance, is not available.
- [24TD04](/bulletins/11006158.md), 2024-08-08, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR LIMITED\-SERVICE CAMPAIGN 24TD04 DATA COMUNICATION MODULE \(DCM\) UPDATE CERTAIN 2020 \- 2023 SUPRA
- [24TD04](/bulletins/11006157.md), 2024-08-08, Service campaign: ELECTRICAL SYSTEM. Due to incorrect software in the Data Communication Module \(DCM\) in your vehicle, the DCM cannot connect to the 4G cellular service. Therefore, after the 3G cellular service was sunset, voice communication with service providers when using connected services like Emergency call and Roadside assistance, is not available.
- [24TD04](/bulletins/11006156.md), 2024-08-08, Service campaign: ELECTRICAL SYSTEM. Due to incorrect software in the Data Communication Module \(DCM\) in your vehicle, the DCM cannot connect to the 4G cellular service. Therefore, after the 3G cellular service was sunset, voice communication with service providers when using connected services like Emergency call and Roadside assistance, is not available.
- [T\-TT\-0754\-24](/bulletins/11003619.md), 2024-07-06, Service bulletin: ELECTRICAL SYSTEM. Customers have expressed concerns about the performance of Qi Wireless Chargers. Wireless chargers on applicable vehicles are designed to work with Qi Certified devices only. MagSafe devices, that are not Qi Certified, may not charge as expected with Qi Wireless Chargers.
- [T\-SB\-0002\-20 Rev1](/bulletins/11003617.md), 2024-07-06, Service bulletin: ELECTRICAL SYSTEM. Some 2020 – 2024 model year Supra vehicles equipped with navigation require a new process for updating map data. This procedure is unique to Supra and is available to customers at any time during their map update service period. Updated map data is released periodically, and there is no activation key/code required to update the vehicle map during the valid map update period. REVISION NOTICE April 09, 2024 Rev1: •Applicability has been updated to include 2021 – 2024 model year Supra vehicles.
- [T\-TT\-0754\-24](/bulletins/11003564.md), 2024-07-06, Service bulletin: ELECTRICAL SYSTEM. Customers have expressed concerns about the performance of Qi Wireless Chargers. Wireless chargers on applicable vehicles are designed to work with Qi Certified devices only. MagSafe devices, that are not Qi Certified, may not charge as expected with Qi Wireless Chargers.
- [T\-SB\-0002\-20 Rev1](/bulletins/11003562.md), 2024-07-06, Service bulletin: ELECTRICAL SYSTEM. Some 2020 – 2024 model year Supra vehicles equipped with navigation require a new process for updating map data. This procedure is unique to Supra and is available to customers at any time during their map update service period. Updated map data is released periodically, and there is no activation key/code required to update the vehicle map during the valid map update period. REVISION NOTICE April 09, 2024 Rev1: •Applicability has been updated to include 2021 – 2024 model year Supra vehicles.

JSON: [/v1/bulletins/10188907](/v1/bulletins/10188907)

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