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Service bulletins for the 2018 Freightliner Cascadia

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.

1044 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
19TS-82019-09-09. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; EQUIPMENT. Technical Service Letter for Incorrect ICUC Fuel Economy Reading for New Cascadia units built or updated to CPC3Evo software version R31.23 and equipped with a 3rd party telematics device.
19TS-8 Cascadia2019-09-09. Service bulletin. ELECTRICAL SYSTEM. Service Solution to fix incorrect ICUC Fuel Economy Reading
CAL Battery Box2019-09-09. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter to fix corroded battery cables
19CSA-132019-09-09. Service bulletin. ENGINE AND ENGINE COOLING. Service Systems Development provided document to service locations on price list reflects current charges to engine horsepower ratings for HDEP and MDEG engine platforms.
19-011WP2019-09-06. Service bulletin. EQUIPMENT. Warranty Policy Letter to communicate Detroit Return Changes
19-012WP2019-09-05. Service bulletin. EQUIPMENT. Warranty Policy Letter to communicate remarketing handling cap for Detroit DT12 Transmission.
19-013WI2019-09-05. Service bulletin. EQUIPMENT. Warranty Information Letter to announce addition of Thomas Built Bus as a brand with an Authorized Demonstrator Program
sb820192019-09-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. Service Bulletin to address wiper issue. On some Cascadia vehicles, when a request for wiper activation is made the wipers may not function. This can result from an overcurrent condition, which causes the wipers to stop functioning and immediately set fault code SPN 522215 FMI 6.
sb542992019-09-05. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin to provide instructions to replace Ignition Control System.The ICU3 is no longer installed in production, and has been superseded by the ICU3S. When replacing an ICU3, the ICU3S must be installed in its place.
sb543122019-09-05. Service bulletin. STRUCTURE; EQUIPMENT. Service Bulletin to replace the white drip shield and secondary SAM cover on the SAM Cabin, with a new one-piece drip shield.
sb543162019-09-05. Service bulletin. FUEL SYSTEM, GASOLINE. Service Bulletin to fix issue related to fuel gauge. On some Cascadia vehicles with a KUS fuel level sender, the needle on the fuel gauge is not touching the full mark when the fuel tank(s) are completely filled. The gauge will show approximately 95% full, but will not reach the full mark.
82-0182019-09-05. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR; ELECTRICAL SYSTEM. Service Bulletin to fix wiper motor issue. On some Cascadia wiper park brush that rides against the brush plate may wear and may result in a diminished wiper park signal.
SF567(sec rev)2019-09-04. Service bulletin. ELECTRICAL SYSTEM. Field Service Campaign to update Detroit Assurance software to add the Tailgate Warning driver alert feature, telematics reporting and the video radar decision unit (VRDU) will be replaced as required to create consistent experience for operators.
SF586A2019-09-04. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR. Field Service Campaign to fix issue related to interaxle driveline contacting anti-lock brake system (ABS) relay valve fitting in certain situations when the suspension air is completely dumped.
19-010WI2019-09-04. Service bulletin. EQUIPMENT. Warranty Information Letter updated to communicate warranty system updates.
0609-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL. Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
0308-19 PTO2019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Information Bulletin regarding PTO Dosing. This feature enables Active Regeneration of the DPFs while in PTO mode.
0305-19 SPN 20002019-08-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service Information Bulletin for Communication Loss with a Common Powertrain Controller (CPC) Module (CPC Heartbeat Message is no Longer Arriving)
0607-192019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Service Information Bulletin to updated the Fuel Injector Harness sections and relocated to Engine Electrical section.
0107-19 GHG172019-08-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING. Service Bulletin to testing of EGR Cooler Water Manifold Assembly in DD13 engines.
SPN 3563 / FMI 22019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed.
19TS-62019-08-08. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. The modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
0419-19SPN5210302019-08-08. Service bulletin. ENGINE AND ENGINE COOLING. Updates to troubleshooting guides in Diagnostic Link with newest version
19TL-92019-08-08. Service bulletin. WHEELS; SUSPENSION; EQUIPMENT. DTNA Special Tools Group has approved the use of Haweka Axis4000 aftermarket alignment system for use on DTNA products at DTNA service locations. The Axis4000 system uses the reference points required by DTNA for precise, accurate, and repeatable measurements. Axis4000 is a sophisticated, user-friendly system that utilizes computer based camera-radio technology and references the center line of the frame for measuring and providing alignment results to DTNA specifications.
19TL-82019-08-08. Service bulletin. POWER TRAIN; STRUCTURE. The crossmember mounting bracket of the New Cascadia prevents correct installation of the TDC locating pin tool through the crankshaft position sensor hole in the flywheel housing. There is a modification required to the standard tool for it to clear the crossmember mounting bracket in the New Cascadia and fit properly into the bore.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.