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Other FleetCom_Heater Core

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)
TypeOther
NHTSA id11027493
Published by NHTSA2026-01-08
Manufacturer's numberFleetCom_Heater Core
Manufacturer's date2025-12-11
NHTSA componentENGINE

NHTSA's summary

Fleet Communications for Heater Core Plugging

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 108SD2020, 2021, 2022, 2023, 2024, 2025, 2026
FREIGHTLINER 114SD2020, 2021, 2022, 2023, 2024, 2025, 2026
FREIGHTLINER 122SD2020 to 2026
FREIGHTLINER BUSINESS CLASS M22020 to 2026
FREIGHTLINER CASCADIA2020, 2021, 2022, 2023, 2024, 2025, 2026
THOMAS BUILT BUSES SAF-T-LINER C22020 to 2026
WESTERN STAR 47X2020 to 2026
WESTERN STAR 49X2020 to 2026

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

Recalls for the same vehicles and component
23V7370002023-11-02. ENGINE
20224132022-07-29. Engine
22V5540002022-07-29. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
21V7150002021-09-15. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
21V0730002021-02-12. ENGINE
20204082020-09-01. Engine
20V5270002020-09-01. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING

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
CXA 07_25_F1011,F1015 Lbl2026-08-05. Other. CX Advocate for Lost/Damaged Replacement F1011/F1015 Labels
ICI26-0072026-05-02. Other. Important Campaign Information for SF735 - Campaign Suspended
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
SF735-DLR LTR2026-04-02. Service campaign. Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
SF735-Bulletin2026-04-02. Service campaign. Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
TitanX Extension2026-03-04. Warranty extension. Standard Warranty Extension for vehicles with TitanX Radiators
CAL FTL-20-0082026-02-03. Other. Customer Advisory Letter for Variable Speed Water Pump Remains Fully Engaged
FleetCom_DPF Ash2026-01-07. Other. Fleet Communications for Gen 5 521133/13 DPF Ash Mileage Mismatch