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Service bulletin TechTalk8020

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 id10186591
Published by NHTSA2021-02-02
Manufacturer's numberTechTalk8020
Manufacturer's date2021-01-07
NHTSA componentPOWER TRAIN

NHTSA's summary

Tech Talk discussion on LX6087 Rear axle oil change fluid type.

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
FREIGHTLINER CASCADIA2020

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

Recalls for the same vehicles and component
19V1370002019-02-27. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TSB-26-057-FTL2026-06-01. Service bulletin. Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
TSB-26-055-FTL2026-02-03. Service bulletin. Revised Technical Service Bulletin for DT12 Excessive Wear
TSB-26-055-FTL2026-02-03. Service bulletin. Technical Service Bulletin for DT12 Excessive Wear
TSB-26-052-FTL2026-02-03. Service bulletin. Technical Service Bulletin for DT12 PTO Upfit
FleetCom_Passive Lube2026-01-08. Other. Fleet Communications for Detroit Axle NFD ALM to Passive Lube Management
FleetCom_Oil Plug Loc2026-01-08. Other. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
FleetCom_NFD Axle2026-01-08. Other. Fleet Communications for Detroit NFD Axle - Factory Fluid Change
TSB26-056-FTL2025-05-02. Service bulletin. Service Solution for DT12 Oil Plug Ports
TSB26-057-FTL2025-03-04. Service bulletin. DT12 OVX Transmission Refresh
TSB26-055-FTL2025-03-04. Service bulletin. Technical Service Bulletin for DT12 Excessive Wear