# Service bulletin 23TC05A

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: 10241409
- Published by NHTSA: 2023\-08\-28
- Manufacturer's number: 23TC05A
- Manufacturer's date: 2023\-07\-27
- NHTSA component: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

RL: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC\-charging performance, and enhance visualization of the remaining range, current state of charge \(SOC\), and real\-life energy consumption.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241409-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10241409-9999.pdf)

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

## Components

Electrical system, Software

## Vehicles listed

- 2023 TOYOTA BZ4X

## Other bulletins for the same vehicles and component

- [23TC05\_FAQ\_10.04](/bulletins/10245449.md), 2023-11-27, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. FAQ: Certain 2023 Model Year bZ4X EV Charging Performance \+ Display Software Update Frequently Asked Questions
- [23TC01a](/bulletins/10243080.md), 2023-10-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE; LANE DEPARTURE. RL: The subject vehicles are equipped with Toyota Safety Sense \(TSS\) which consists of several driving assist features, including pre\-collision braking, lane departure warning, and more. Due to the programming of the software within the forward recognition camera, there is a possibility that under certain conditions, TSS functions could become inoperative for approximately 4 seconds before rebooting and becoming operational again.
- [23TC05](/bulletins/10241408.md), 2023-08-28, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. DP: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC\-charging performance, and enhance visualization of the remaining range, current state of charge \(SOC\), and real\-life energy consumption.
- [22TD05\-Update](/bulletins/10228596.md), 2023-01-03, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. TI: TECHNICAL INSTRUCTIONS FOR LIMITED\-SERVICE CAMPAIGN 22TD05 Software Update for ?Car Finder? Feature CERTAIN 2023 Model Year bZ4X

JSON: [/v1/bulletins/10241409](/v1/bulletins/10241409)

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