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Service bulletin 016401

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10240729
Published by NHTSA2023-08-15
Manufacturer's number016401
Manufacturer's date2023-08-07
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Calibration software updates, various models

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
SUZUKI AN4002023
SUZUKI DL10502023
SUZUKI DL10502024
SUZUKI DL6502023
SUZUKI DL8002023
SUZUKI DR-Z400S2023, 2024
SUZUKI DR-Z400SM2023
SUZUKI DR-Z400SM2024 (the catalog's model; the bulletin names a series or trim of it)
SUZUKI DR6502023 to 2024
SUZUKI GSX-R10002023
SUZUKI GSX-R6002023
SUZUKI GSX-R7502023
SUZUKI GSX-S10002023, 2024
SUZUKI GSX-S7502023
SUZUKI GSX1300R2023 to 2024
SUZUKI GSX250R2023
SUZUKI SV6502023
SUZUKI VL8002023
SUZUKI VZR18002023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
0163542023-07-06. Service bulletin. Revision to exhaust control valve adjustment settings