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Emissions D24R2-DLR LTR

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)
TypeEmissions
NHTSA id11012367
Published by NHTSA2025-01-06
Manufacturer's numberD24R2-DLR LTR
Manufacturer's date2024-12-03
Campaign id or software versionD24R2
NHTSA componentENGINE

NHTSA's summary

Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming

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 114SD2021, 2022, 2023, 2024
FREIGHTLINER BUSINESS CLASS M22022 to 2023
FREIGHTLINER CASCADIA2016
FREIGHTLINER CASCADIA2021, 2022, 2023, 2024
WESTERN STAR 47002017
WESTERN STAR 47X2021 to 2024
WESTERN STAR 49002022, 2023
WESTERN STAR 49X2021 to 2024
WESTERN STAR 57X2021 to 2023
WESTERN STAR 69002022

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
20154842015-10-16. Engine
15V6200002015-10-02. ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE

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 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)
FleetCom_Heater Core2026-01-08. Other. Fleet Communications for Heater Core Plugging
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_Low Coolant2025-12-05. Other. Fleet Communications for Low Coolant Sensor
CXA 10_25_Discolored Cool2025-11-06. Other. CX Advocate for Plastic Opaque Surge Tank Staining
TSB54-371-FTL2025-11-05. Service bulletin. Technical Service Bulletin for Enabling Virtual Regen Request Switch in ICU Menu
CXA_10_25_Low Coolant2025-11-05. Other. CX Advocate for P4, WST X-Series, DD Engines Low/Critical Low Coolant Warnings
CXA_10_25_Conmet Oil Pan2025-11-05. Other. CX Advocate for ConMet Oil Pan Insert Additional Issues