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Service bulletin SB-25-39-001

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 id11018849
Published by NHTSA2025-06-02
Manufacturer's numberSB-25-39-001
Manufacturer's date2025-05-15
Campaign id or software versionSB-25-39-001
NHTSA componentPOWER TRAIN

NHTSA's summary

Updated oil pumps that provide improved oil flow are available for the Torque Drive Unit (TDU) and Efficiency Drive Unit (EDU) on Semi.

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

Transmission and driveline

Vehicles listed
TESLA SEMI2023, 2024

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
SB-25-39-0012025-08-05. Service bulletin. Updated oil pumps that provide improved oil flow are available for the Torque Drive Unit (TDU) and Efficiency Drive Unit (EDU) on Semi. Replace the TDU and EDU oil pumps with updated parts.
SB-24-40-0052024-10-09. Service bulletin. On certain Semi, the Torque Drive Axle (TDA) and Efficiency Drive Axle (EDA) maincase input bearings may not be properly lubricated due to insufficient gearbox fluid circulation which may cause bearing failure and driveline lockup.
SB-24-40-0052024-10-09. Service bulletin. On certain Semi, the Torque Drive Axle (TDA) and Efficiency Drive Axle (EDA) maincase input bearings may not be properly lubricated due to insufficient gearbox fluid circulation which may cause bearing failure and driveline lockup.
SB-24-40-0052024-10-09. Service bulletin. On certain Semi, the Torque Drive Axle (TDA) and Efficiency Drive Axle (EDA) maincase input bearings may not be properly lubricated due to insufficient gearbox fluid circulation which may cause bearing failure and driveline lockup.