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Service bulletin TechTalk6609

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 id10180357
Published by NHTSA2020-09-30
Manufacturer's numberTechTalk6609
Manufacturer's date2020-09-29
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING

NHTSA's summary

Tech Talk discussion on Optimized Idle batteries.

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

Electrical system, Engine, Equipment and accessories, 12-volt battery

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
21V4810002021-06-25. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

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
FTLCAE167-20162021-05-17. Service bulletin. Important Update for Parked HVAC System Options
CALFTL54-0122020-10-01. Service bulletin. Customer Advisory Letter for New Cascadia 29A Battery Cable Relocation.