2020 Freightliner Cascadia Technical Service Bulletins

661 technical service bulletins (TSBs) are on record for the 2020 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.

• 10182886Nov 20, 2020Fuel system. Detroit Connect Customer Communication for vehicle trips not populating in the Vehicle History Trips page. This may affect Fleet Fuel Analysis and Fuel Economy Calculations.
• 10183605Nov 19, 2020Equipment, Visibility (wipers, defrost, mirrors), Electrical system. Tech Talk discussion on tractor, loses markers and wipers intermittently.
• 10183588Nov 19, 2020Electrical system, Equipment. Tech talk discussion on ICC 5 loudspeaker faults.
• 10183585Nov 17, 2020Engine cooling. Tech Talk discussion on Low coolant sensor New Cascadia.
• 10183440Nov 13, 2020Electrical system, Visibility (wipers, defrost, mirrors). Tech Talk discussion on New Cascadia wipers unresponsive. Wipers don't work in the first two positions. Determined to be the LDW camera wire was caught underneath the top right portion of the windshield mounting plate, thus causing the rain/light sensor to not seat all the way against the windshield.
• 10183451Nov 12, 2020Equipment, Visibility (wipers, defrost, mirrors). Tech Talk discussion on P4 BPHS code 523450/11, PCU compressor-internal fault.
• 10183400Nov 12, 2020Engine cooling, Electrical system. Tech Talk discussion on P4 ACM Not Communicating.
• 10183322Nov 5, 2020Electrical system. Customer Advisory Letter for Dome Lamps Do Not Illuminate When the Right-Hand Door is Opened.
• 10183397Nov 4, 2020Equipment, Engine cooling. Tech Talk discussion on DD15 making ticking noises.
• 10182137Oct 29, 2020Engine cooling, Equipment, Transmission and drivetrain. Detroit Diesel Field Service Campaign for DETROIT TM2020 Transmission Replacement. It has been discovered that certain TM2020 units have porosity issues in and around the oil cooler line fittings on the center housing.
• 10181759Oct 27, 2020Equipment, Electrical system. Updated Freightliner Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. This bulletin replaces the version dated 5/31/2017. Information is added about the BCT-460DTNA PowerNet Assessment Tool. When troubleshooting Powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter® is the only Daimler-approved tool for troubleshooting…
• 10181968Oct 23, 2020Electrical system, Equipment. Tech Talk discussion on P4 NEW CASCADIA AUX HVAC BLOWER TURN ON.
• 10182012Oct 20, 2020Electrical system, Engine cooling. Tech Talk discussion on DL8 CGW connection issues for D20M8.
• 10181369Oct 20, 2020Electrical system, Engine cooling, Transmission and drivetrain. Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14. Due to colder weather, there may be an increase in the frequency of faults, noted below, on GHG17/21 DD13 trucks built after June 5th 2019. This is due to a calibration issue in the current MCM software (14.1.1.5 or 14.2.1.3). New software is scheduled for release in the first quarter of 2021 that will address these…
• 10181368Oct 20, 2020Electrical system, Transmission and drivetrain. Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.
• 10181322Oct 16, 2020Engine cooling. Freightliner Service Bulletin for Air Cleaner Support Bracket Bolt Replacement. On New Cascadia vehicles, the air filter housing rear mounting bracket bolts may be found to be loose or missing. If allowed to continue, this can lead to complete bolt failure which will allow the filter housing to rest on and possibly wear through the valve cover.
• 10182013Oct 15, 2020Forward collision avoidance, Lane departure, Electrical system. Tech Talk discussion on p4 gcw04t flashed to 19.45.1. Forward and lane camera not detected.
• 10181323Oct 15, 2020Suspension. Customer Advisory Letter for Drive Axle Leaf Spring Pin Hex Nut Torque Inspection. Select New Cascadia vehicles may have been delivered to customers with insufficient torque applied to the hex nuts at the front of the spring hanger.
• 10181321Oct 15, 2020Electrical system. Important Campaign Information Letter for SF576, SF610, & SF611 - Revised Bulletins. This letter is to inform you that revised bulletins for FOTA Field Service Campaigns SF576, SF610, and SF611 are available on DTNAConnect. Please print and use the revised bulletin for all work under SF576, SF610, & SF611 from this point forward. REVISION: The work instructions on all campaigns have been updated, a new campaign…
• 10181320Oct 15, 2020Electrical system. Revised Field Service Campaign for Cascadia CTP Reset. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be reset and some will also be initialized.
• 10181324Oct 13, 2020Engine cooling, Body and structure. Customer Advisory Letter for New Cascadia Cummins ISX12N Natural Gas Cab Mount Heat Shield Installation.
• 10181052Oct 12, 2020Engine cooling, Equipment. DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts. Some GHG17 DD Platform Heavy Duty oil pans may experience an issue with the oil pan drain plug insert spinning during removal or installation while completing an oil change. Leaking may also be observed at the drain plug and/or other plugs in the oil pan.
• 10181050Oct 7, 2020Equipment, Electrical system. Updated Freightliner Service Bulletin for Rewiring the MPC2 Camera Fuse. This bulletin replaces the version dated 9/15/20. Information has been added about raising the system voltage to normal range to clear the "Lost Communication to MPC" code. The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before August 24, 2020.
• 10181049Oct 7, 2020Equipment, Transmission and drivetrain. Freightliner Service Bulletin for Axle Flange Gasket Replaced with O-Ring. Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The new O-ring will provide better sealing and is reusable. It is quicker and easier to use compared to the paper gasket, because using a paper gasket requires cleaning…
• 10182027Oct 6, 2020Electrical system. Tech Talk discussion for fuse 22 blowing.
• 10182002Oct 6, 2020Vehicle speed control. Tech Talk discussion on Cruise Control Intermittently Dropping Out.
• 10181992Oct 6, 2020Engine cooling, Equipment. Tech Talk discussion on DETROIT D20M8 ASM DELETED.
• 10182043Oct 5, 2020Engine cooling. Tech Talk discussion on fault codes SPN 1322 FMI 11 and SPN 1324 FMI 10 on engine cylinder misfires.
• 10182030Oct 5, 2020Equipment, Electrical system. Tech Talk discussion on Diagnostic Link connection issues with D20M8.
• 10181974Oct 1, 2020Engine cooling, Fuel system, Other or unknown. Tech Talk discussion on 1 Aftertreatment System Problem Detected.
• 10180517Sep 30, 2020Engine cooling. Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit. This heavy duty friction style belt tensioner kit contains the belt tensioner and two M10 bolts to correctly pin the friction style belt tensioner. The M10x80mm bolt is used to pin the engine cooling fan drive arm. The M10x50mm bolt is used to pin the engine accessory drive arm.
• 10180503Sep 29, 2020Engine cooling. Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change. A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform. The revision includes additional information on retrofit and service kits.
• 10180459Sep 29, 2020Engine cooling. Tech Talk discussion on Aftertreatment System Problem Detected after performing D20M8 recall.
• 10180357Sep 29, 2020Electrical system, Equipment, Engine cooling. Tech Talk discussion on Optimized Idle batteries.
• 10180562Sep 25, 2020Electrical system, Equipment. Customer Advisory Letter for New Cascadia 29A Battery Cable Relocation.
• 10180455Sep 24, 2020Electrical system, Engine cooling. Tech talk discussion on inaccurate reading DEF gauge.
• 10180080Sep 23, 2020Electrical system, Equipment. Customer Letter explaining for certain vehicles the software updates for the CTP will require monitoring and may affect service availability.
• 10180350Sep 22, 2020Equipment, Steering. Tech Talk discussion about power steering fluid.
• 10180360Sep 18, 2020Electrical system, Equipment. Tech Talk discussion on New Cascadia front blower motor inoperative.
• 10180386Sep 17, 2020Equipment. Tech Talk discussion on CTP Update Issues
• 10180358Sep 17, 2020Vehicle speed control, Equipment. Tech Talk discussion on P4 speedometer issues.
• 10179807Sep 17, 2020Engine cooling. Field Service Campaign for Freightliner Cascadia LG1 Radiator Inlet Hoses. The radiator and upper hose assembly have an alternate design available which may extend the life of the radiator hose and prevent leaking connectors.
• 10180593Sep 16, 2020Engine cooling, Transmission and drivetrain. Tech Talk discussion about Common Powertrain Controller(CPC) not configured to Cascadia
• 10180387Sep 16, 2020Engine cooling. Tech talk discussion on DEF gauge not reading properly.
• 10180138Sep 16, 2020Electrical system, Equipment. Tech Talk discussion for P4 New Cascadia ICU display blank but gauges still work.
• 10180135Sep 16, 2020Vehicle speed control, Electrical system. Tech Talk discussion for new cascadia w/isx cruise issue. A truck with an cummins isx with onguard, driver complains onguard cuts out and the cruise control stops working,
• 10180099Sep 16, 2020Equipment, Electrical system, Engine. Service Solution for Fault Code VRDU 524127/9 - Lost Communication with the MPC. This Service Solution has been superseded to service bulletins SB 54-336 and 54-329. Please see the service bulletins for the most current information. VRDU fault code 524127/9 is often caused by lack of ignition supply to the MPC, which causes it to stop communicating. This usually occurs when voltage is low.
• 10179804Sep 16, 2020Electrical system. Freightliner Service Bulletin for Rewiring the MPC2 Camera Fuse. The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before August 24, 2020. With this configuration, fault code 232/524127/9 - "Lost Communication to MPC" becomes active during low voltage disconnect (LVD) situations when load shedding is required to maintain critical systems.
• 10180382Sep 15, 2020Engine cooling. Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
• 10180379Sep 14, 2020Equipment, Electrical system. Tech Talk discussion on new Cascadia P4 ICU issue for clearing codes after updating.

← All problems reported for the 2020 Freightliner Cascadia