NHTSA ID Number: 11022327
Manufacturer Communication Number: MYCOM_08152025-1
TSB/Document Date: 2025-09-02
Summary
My Communications for GHG Requirement Updates & Resources
GHG Requirement Updates & Resources
Communication Type: Product News
Date: 8/15/2025
To: Freightliner
& Western Star Dealer Principals, General Managers and Sales Managers
This communication is to share updates on CHG-related product content and resources to support
MY2027 specing.
For CARB and GHG Resources for US domiciled vehicles, please visit the CARB & GHG Regulatory Updates
- US Overview Page. (https://daimler.highspot.com/items/6467el 130e5e46d693bfl 853?Ifrm=srp.0)
For CARB and GHG Resources for Canada domiciled vehicles, please visit the CARB & GHG Regulatory
Updates - Canada Overview Page. (https://daimler.highspot.com/items/65a854d87c0f9516940cc7c3?
lfrm=srp.1)
Fourth and Fifth Generation Cascadias
As previously announced in the communication sent out July 31, 2025, DTNA has removed CHG-related
aerodynamic feature requirements for U.S. domiciled Fourth and Fifth Generation Cascadias for orders
starting July 31, 2025. Product requirements that were in place previous to CHG-related changes remain
in place on raised roof sleepers. These product requirement changes are now reflected in SpecPro. Please
find attached the updated US GHG requirement matrix outlining these changes.
There are no changes from 2025 GHG requirements for Cascadia models domiciled in Canada.
X-Series, M2 Plus, and SD Plus Products
In addition to current GHG requirements in place for Canadian domiciled vehicles, B6.7 powered vehicles
will require automatic engine shutdown when available, and Detroit powered manual transmission
vehicles will require automatic engine shutdown, when available. In addition, Cummins powered vehicles
will no longer be offered with manual transmissions. Additional information will be communicated on
the automatic engine shutdown features when available in SpecPro.
Please reference this presentation from the 8-11-25 Canada GHG MY27 Update Webinar
(https://daimler.highspot.com/items/689e488470f23f5199972f26) as well as this 2026 Canadian GHG
Specing Guidance (https://daimler.highspot.com/items/689e488470f23f5199972f34) document for
additional details.
There are no changes from 2025 GHG requirements for U.S. domiciled vehicles.
Please contact your District Sales Manager with any questions.
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TSB/Document ID: MYCOM_08152025-1
Replacement Service Bulletin Number:
MFR Communication Date: 2025-08-15
MFR Internal Campaign ID/Software Version:
Communication Type: Other
NHTSA Components: ENGINE
MFR Component System:
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