2017 Freightliner Cascadia Technical Service Bulletins

1,143 technical service bulletins (TSBs) are on record for the 2017 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.

• 10198593Jun 1, 2021Engine cooling, Forward collision avoidance. Freightliner Service Bulletin for Detroit Assurance 4.0 Software v20.05. New Cascadia trucks built from January 1, 2017 through September 9, 2019 and equipped with Detroit Assurance correctly initiate an active brake assist (ABA) event when a vehicle or obstacle is detected in front of the truck. Some of those trucks may continue decelerating to a complete stop, even after the vehicle or obstacle detected in front…
• 10194477May 12, 2021Equipment, Brakes. Customer Advisory Letter for Drive Axle Drum Brake S-Cam U-Bolt Replacement.
• 10200624Apr 27, 2021Visibility (wipers, defrost, mirrors). Freightliner Service Bulletin for Auxiliary Mirror Vibration. Cascadia trucks built from January 1, 2017 through June 16, 2020 may be equipped with auxiliary mirrors that vibrate or wobble. A service kit (part number 22-77791-500) is available to resolve the issue.
• 10190985Apr 26, 2021Visibility (wipers, defrost, mirrors). Updated Freightliner Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. This bulletin replaces the version dated 12/06/2019. Tables 3 and 4 have been updated. Steps to change and match HVAC desired settings have been updated.
• 10191150Apr 23, 2021Visibility (wipers, defrost, mirrors). Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off. Lower arm cover designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
• 10191149Apr 23, 2021Transmission and drivetrain. Service Solution for FTL DT12 Trans Control Harness Chaffing - PT Can faults. Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes.
• 10190554Apr 23, 2021Electrical system. Customer Advisory Letter for Battery Cable Access (BCA) 29A Cable Inspection.
• 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.
• 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.
• 10201997Mar 29, 2021Equipment. DetroitConnect customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.
• 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.
• 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…
• 10189345Mar 18, 2021Engine cooling. Customer Advisory Letter for DEF Header Replacement.
• 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…
• 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…
• 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.
• 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.
• 10188225Feb 25, 2021Engine, Electrical system. Tech Talk discussion on hill start aid disable function.
• 10188224Feb 25, 2021Electrical system. Tech Talk discussion on J1939 ISSUES.
• 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
• 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.
• 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.
• 10187881Feb 10, 2021Engine cooling. Important Campaign Information Letter announcing that a revision for Detroit Diesel Field Service Campaign D19M7. This letter is to inform you that Detroit Field Service Campaign D19M7 REV2, Pre-Series Cascadia Emission Label Replacement has been EXTENDED for an additional four months and re-activated on DTNA Connect. Please use the extended termination date for all work under D19M7 REV2 from this point forward.
• 10187879Feb 10, 2021Engine cooling. Revision for Field Service Campaign for pre-series Cascadia and New Cascadia Emission Label replacement. Additional sections have been updated.
• 10187600Feb 10, 2021Electrical system. Service Solution for P4 New Cascadia Unintended Dome Lamp Activation Due To Poor Connections at the sSAM.
• 10187598Feb 10, 2021Engine cooling, Electrical system. Service Solution for P3 - CEL On and Engine de-rate due to ATD Chassis Harness Circuit 532M5+ at DEF Heater Supply location is shorted.
• 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.
• 10187990Feb 6, 2021Engine cooling. Tech Talk discussion on Cummins 3382 fault.
• 10187599Feb 2, 2021Seat belts. Service Solution for New Cascadia Seat Belt Warning Harness Routing
• 10187900Feb 1, 2021Engine cooling, Transmission and drivetrain. Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12 posters.
• 10186531Feb 1, 2021Engine cooling. Tech Talk discussion on Possible new regen strategy on GHG 17.
• 10186525Feb 1, 2021Electrical system. Customer complaint regarding inoperable radio control from steering wheel
• 10185961Jan 26, 2021Electrical system, Engine cooling. Superseded Service Solution for New Cascadia P4 Coolant Level Wiring Damage. Fault codes can be generated if wiring to the coolant level sensor becomes damaged. This Service Solution has been superseded to service bulletin SB 54-337. Please see the service bulletin for the most current information.
• 10185931Jan 25, 2021Engine cooling, Equipment. Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.
• 10185903Jan 25, 2021Engine cooling, Equipment. Technical Service Letter for GHG17 1-Box Inlet and Outlet Exhaust Clamps. There is a short supply of exhaust clamps, part number DDE A6809950502, used as inlet and outlet exhaust clamps on GHG17 heavy duty engines (DD13, DD15 and DD16) with a 1-Box aftertreatment configuration. Exhaust clamp part number TCX T130158342AC2 may be used as a substitute for DDE A6809950502, but be aware of the different torque specs…
• 10185897Jan 25, 2021Engine cooling, Equipment. Warranty Information Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.
• 10185895Jan 25, 2021Equipment, Electrical system. Freightliner Service Bulletin for Rain/Light Sensor Removal. On New Cascadia vehicles, a delay in the timing of communication (hand shake) between the rain/light sensor (RLS) and sSAM generates fault code "33/521940/12 - rain/light sensor - general DTC timeout", which causes the sensor to stop working.

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