2019 Freightliner Cascadia Technical Service Bulletins

771 technical service bulletins (TSBs) are on record for the 2019 Freightliner Cascadia. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10191146Apr 23, 2021Tires. Customer Advisory Letter for Tire Valve Stem Inspection.
• 10190554Apr 23, 2021Electrical system. Customer Advisory Letter for Battery Cable Access (BCA) 29A Cable Inspection.
• 10191856Apr 19, 2021Engine cooling. Tech Talk discussion on Software Warning Error.
• 10191143Apr 19, 2021Transmission and drivetrain. Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in order to reseal the bypass plugs of the drive shaft cover located in front housing.
• 10190555Apr 19, 2021Engine cooling. Detroit Technical Service Letter for DD13 Cylinder Head and Cylinder Head Gasket Change.
• 10190551Apr 19, 2021Engine cooling. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021.
• 10191781Apr 7, 2021Brakes, Electrical system. Tech Talk discussion on 520240 19 VRDU.
• 10190549Apr 6, 2021Equipment. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021.
• 10189963Mar 30, 2021Electrical system. Tech Talk discussion on trailers older than 2016, the trailer lights will not come on. Newer trailers work fiine.
• 10189616Mar 30, 2021Engine cooling. Field Service Campaign for Cascadia Cummins Natural Gas Engine Exhaust Shield. On certain vehicles, there may be early heat degradation at the front right cab mount due to excessive heat exposure. An exhaust shield will be installed on all vehicles involved.
• 10201997Mar 29, 2021Equipment. DetroitConnect customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.
• 10189959Mar 26, 2021Electrical system. Tech Talk discussion on starter relay wire stays hot.
• 10189619Mar 26, 2021Electrical system. Customer Advisory Letter for Customer Access to Fused Battery Power and Ground inside a Cascadia Cab vehicles built without a cab load disconnect switch (CLDS).
• 10189340Mar 24, 2021Equipment. Updated Freightliner Service Bulletin for Espar Service Information. This bulletin replaces the version dated January 1, 2015. New Cascadia has been added to the model list.
• 10198592Mar 23, 2021Visibility (wipers, defrost, mirrors). Updated Freightliner Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. This bulletin replaces the version dated 03/03/2021. Information on software versions and the number of software updates needed has been updated.
• 10189833Mar 23, 2021Engine cooling. Tech Talk discussion regarding an engine that will not stay running.
• 10189319Mar 22, 2021Equipment, Electrical system. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.
• 10189338Mar 19, 2021Electrical system. Service Solution for New Cascadia Maintenance Indicator Issues. Some customers have reported incorrect or undesired pop up messages occurring in the ICC5 display and have requested field correction.
• 10189337Mar 19, 2021Electrical system, Lane departure. Service Solution for P4 New Cascadia Side Guard Radar Harness Moisture Intrusion. The 6-pin connector located at the side radar can show signs of water intrusion if wires are strained at the connector. Wires without strain relief can allow water to intrude past the seals, resulting in corrosion on the terminals and pins within the connector. Active fault codes for lost communication with RDU and SRRM, plus other…
• 10189342Mar 17, 2021Brakes. Revised Customer Advisory Letter for ABS Warning Light Illumination with ABS code SA 11, SPN 629, FMI 11. REVISED: This CAL revises the CAL issued August 10th, 2020. Western Star 49X vehicles have been added to the CAL scope and instructions for downloading and installing software to address the ABS warning light illumination with ABS code SA 11, SPN 629, FMI 11 have replaced the corrective action of the previous…
• 10189348Mar 16, 2021Transmission and drivetrain. Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.
• 10189320Mar 16, 2021Engine cooling. Revised Freightliner Service Bulletin for netized Fill Neck for Six-Gallon DEF Tanks. A design change removed the magnets from the fill necks for some 6-gallon diesel exhaust fluid (DEF) tanks. If the vehicle is equipped with a non-magnetic fill neck 04-32529-000, it can be updated to a magnetic neck 04-32529-001. This bulletin replaces the version dated 04/18/2017. Updated availability of magnetic fill neck option…
• 10189893Mar 15, 2021Equipment, Electrical system. Tech Talk discussion on the Vehicle power distribution model (VPDM) cover and vehicle literature discrepancy.
• 10190020Mar 10, 2021Transmission and drivetrain, Equipment. DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not received by the Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and…
• 10189346Mar 5, 2021Electrical system. Customer Advisory Letter for Disabling the Park Brake Drag ICU Warning Message.
• 10189321Mar 4, 2021Equipment. Revised Freightliner Service Bulletin for New Cascadia Key Fob ID Retention. This bulletin replaces the version dated 8/15/2018. The guidance for locating the serial number for key fobs has changed. It is no longer necessary to document the serial number in PartsPro.
• 10189970Mar 3, 2021Electrical system, Equipment. Tech Talk continued discussion on Alternator Overcharging with A/C switch On only (also reported as Tech Talk 9016).
• 10189331Mar 3, 2021Visibility (wipers, defrost, mirrors), Equipment. Revised Freightliner Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. This bulletin replaces the version dated 12/23/2020. Information has been added about ParkSmart units and the instructions have been streamlined.
• 10189341Mar 1, 2021Other or unknown. Revised Customer Advisory Letter for Cascadia, New Cascadia, and 122SD Vehicles with Cracked Fifth Wheel Angles. Additional photos have been added.
• 10188215Feb 25, 2021Electrical system, Equipment. Tech Talk discussion on Alternator Overcharging with A_C switch On only.
• 10188214Feb 25, 2021Electrical system. Tech Talk discussion on CASCADIA FAULT 168 FMI 9.
• 10187532Feb 25, 2021Equipment, Engine cooling. Freightliner Service Bulletin for Programming Chassis Electronic Control Units (ECUs) With DiagnosticLink.
• 10187594Feb 24, 2021Other or unknown, Equipment. Customer Advisory Letter for Cascadia, New Cascadia, and 122SD Vehicles with Cracked Fifth Wheel Angles
• 10187596Feb 23, 2021Equipment, Steering. Customer Advisory Letter for New Cascadia Front Steer Arm – Drag Link Ball Joint Connection Inspection.
• 10188223Feb 22, 2021Equipment. Tech Talk discussion on Connecting to ESPAR with EDITH.
• 10187807Feb 22, 2021Electrical system. Tech Talk discussion on Alternator Overcharging with A/C switch On only.
• 10188021Feb 19, 2021Engine cooling. Tech Talk discussion on DPF inspection.
• 10187835Feb 19, 2021Engine cooling. Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available. Current subscribers of DiagnosticLink 8.11 or 8.12 may upgrade to DiagnosticLink 8.13 at no cost. All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.
• 10188222Feb 18, 2021Engine cooling. Tech Talk discussion on acm ambient air temp is maxed out.
• 10187844Feb 16, 2021Electrical system, Visibility (wipers, defrost, mirrors), Exterior lighting. Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure.
• 10187524Feb 15, 2021Equipment. Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately. This letter supersedes ICI20-022R.
• 10187444Feb 15, 2021Engine cooling, Electrical system, Equipment. Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.
• 10187928Feb 14, 2021Visibility (wipers, defrost, mirrors), Electrical system. Tech Talk continued discussion for P4 Next Gen Cascadia dome lights stay on while driving.
• 10188114Feb 12, 2021Brakes. Tech Talk discussion on MERITOR EX+ AIR DISK BRAKES OUT OF SPEC ROTOR THICKNESS.
• 10188122Feb 10, 2021Engine cooling. Tech Talk discussion on D20M8 having updates greater than Recall requires in server.
• 10187600Feb 10, 2021Electrical system. Service Solution for P4 New Cascadia Unintended Dome Lamp Activation Due To Poor Connections at the sSAM.
• 10187440Feb 8, 2021Equipment. Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance. In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes. Revisions are in blue font.
• 10188056Feb 5, 2021Engine cooling, Electrical system. Tech Talk discussion on chasing a delay crank on P4.
• 10187599Feb 2, 2021Seat belts. Service Solution for New Cascadia Seat Belt Warning Harness Routing
• 10186613Feb 2, 2021Brakes. Discussion on issue related to ABS tone rings on disc brakes

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