# Service bulletin T\-SB\-0037\-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: 11003646
- Published by NHTSA: 2024\-07\-06
- Manufacturer's number: T\-SB\-0037\-24
- Manufacturer's date: 2024\-04\-19
- Campaign id or software version: T\-SB\-0037\-24
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

2023 – 2024 model year Toyota GR Corolla vehicles can exhibit a condition where an emergency/SOS call is triggered during track usage and sudden acceleration change events, such as, but not limited to, the vehicle hitting a pothole or a curb. If the emergency call is triggered during such an event, SRS functionality is not affected and continues to function as designed. The SRS ECU logic has been modified to address this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11003646-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11003646-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 to 2024 TOYOTA GR COROLLA

## 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

- [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.
- [T\-TT\-0779\-25](/bulletins/11019331.md), 2025-06-06, Service bulletin: ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
- [T\-TT\-0779\-25](/bulletins/11018328.md), 2025-05-15, Service bulletin: ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
- [T\-SB\-0013\-24 Rev1](/bulletins/11016781.md), 2025-04-08, Service bulletin: ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
- [T\-SB\-0013\-24 Rev1](/bulletins/11015495.md), 2025-03-11, Service bulletin: ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
- [T\-SB\-0120\-20 Rev2](/bulletins/11014211.md), 2025-02-12, Service bulletin: ELECTRICAL SYSTEM. OBSOLETE NOTICE January 30, 2025: This bulletin is now obsolete. Please see T\-SB\-0015\-25.
- [T\-SB\-0015\-25](/bulletins/11014209.md), 2025-02-12, Service bulletin: ELECTRICAL SYSTEM. Some 2021 – 2025 model year Toyota vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit \(ECU\) is replaced. GTS\+ software has been modified to indicate when configuration software is required. A new Configure column has been added to the GTS\+ Health Check Results screen to show when configuration software is available for a specific ECU.
- [T\-SB\-0111\-20 Rev2](/bulletins/11014193.md), 2025-02-12, Service bulletin: ELECTRICAL SYSTEM. OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T\-SB\-0011\-25.
- [T\-SB\-0011\-25](/bulletins/11014190.md), 2025-02-12, Service bulletin: ELECTRICAL SYSTEM. When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS\+ Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key.
- [T\-SB\-0062\-24 Rev1](/bulletins/11010326.md), 2024-11-08, Service bulletin: ELECTRICAL SYSTEM. Some 2023 model year RAV4 Prime vehicles with Data Communication Module \(DCM\) firmware version earlier than LG\-N210hh1V1V\-09 may exhibit a condition in which the remote climate system is inoperative after the vehicle has been off for three hours or more. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Corolla Hatchback, Corolla Hybrid, Crown, GR Corolla, Highlander, Highlander Hybrid, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles and 2024 model year Grand Highlander and Grand Highlander Hybrid vehicles with DCM firmware versions earlier than LG\-N210jj3333\-09, LG\-N210nn1212\-09, LG\-N310kk4646\-0I, LG\-N310ll4A4A\-0I, LG\-N310mm8A8A\-0I, LG\-N310nnBLBM\-0I, or LG\-N310oo1B1B\-0I may exhibit a condition in which remote services are inoperative. Some 2023 model year Corolla, Corolla Cross, Corolla Cross Hybrid, Highlander, and Highlander Hybrid vehicles, 2023 – 2024 model year Corolla Hybrid, GR Corolla, Prius, Prius Prime, RAV4, RAV4 Hybrid, RAV4 Prime, and Venza Hybrid vehicles, 2024 model year Grand Highlander, Grand Highlander Hybrid, and Land Cruiser vehicles; 2023 – 2025 Corolla Hatchback and Crown vehicles, and 2025 Crown Signia vehicles with DCM firmware versions earlier than LG\-N210qq\#\#\#\#\-\#\# or LG\-N310qq\#\#\#\#\-\#\# may exhibit a condition in which Apple Music® or Amazon Music streaming and/or remote services are inoperative. A DCM firmware update is now available.

JSON: [/v1/bulletins/11003646](/v1/bulletins/11003646)

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