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Warranty extension TitanX Extension

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)
TypeWarranty extension
NHTSA id11029510
Published by NHTSA2026-03-04
Manufacturer's numberTitanX Extension
Manufacturer's date2026-02-04
Campaign id or software versionTitanX Extension
NHTSA componentENGINE

NHTSA's summary

Standard Warranty Extension for vehicles with TitanX Radiators

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

Engine

Vehicles listed
FREIGHTLINER CASCADIA2025, 2026
WESTERN STAR 47X2025 to 2026
WESTERN STAR 49X2025 to 2026
WESTERN STAR 57X2025 to 2026

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
CXA 07_25_F1011,F1015 Lbl2026-08-05. Other. CX Advocate for Lost/Damaged Replacement F1011/F1015 Labels
CXA 03_26_Surge Tank2026-04-02. Other. CX Advocate for discolored coolant surge tanks (24CSA-20)
CXA 03_26_SSR2026-04-02. Other. CX Advocate for error generates when SSR is moved into an engine brake position 1,2,3 (TSB-26-058-FTL, TSB-26-009-WST)
CXA 03_26_DPF Ash2026-04-02. Other. CX Advocate for Gen 5 521133/13 DPF Ash Mileage Mismatch
CAL FTL-20-0082026-02-03. Other. Customer Advisory Letter for Variable Speed Water Pump Remains Fully Engaged
FleetCom_Heater Core2026-01-08. Other. Fleet Communications for Heater Core Plugging
FleetCom_DPF Ash2026-01-07. Other. Fleet Communications for Gen 5 521133/13 DPF Ash Mileage Mismatch
TSB54-377-FTL2026-01-07. Service bulletin. Technical Service Bulletin Low Coolant Sensor
FleetCom_SS 3163-FTL2025-12-06. Other. Fleet Communications for Power Steering Reservoir Fill Cap Venting
FleetCom_DPF Ash2025-12-05. Other. Fleet Communications for DPF Ash Mileage Mismatch