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April 19, 2021 Service bulletin

Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown

Freightliner technical service bulletin WI21-009 for 2007-2022 Freightliner Cascadia, 2008-2021 Freightliner Columbia and 2007-2022 Freightliner Business Class M2 and others.

Bulletin number
WI21-009
Component
Engine and engine cooling
Summary
Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.

Owners of these vehicles have filed 31 complaints in the engine category.

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