Service bulletins for the 2023 Toyota bZ4X
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.
162 on file from NHTSA, as of 2026-10-19.
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By component
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Only bulletins with component: Software are shown. Show all
| 23TC05_FAQ_10.04 | 2023-11-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. FAQ: Certain 2023 Model Year bZ4X EV Charging Performance + Display Software Update Frequently Asked Questions |
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| 23TC01a | 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. |
| 23TC05A | 2023-08-28. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. 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. |
| 23TC05 | 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 | 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 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.