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2020 Western Star 5700 TSBs

159 Technical Service Bulletins across 14 categories

Pre-Delivery & Maintenance

40 bulletins
11030281

Technical Service Bulletin for TufTrac M12 Bolts

11017553

Service Solution for DT12 Oil Plug Ports

11014775

Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts

11007487

Important Campaign Information letter for DDC D23M3 - Campaign Reactivated and Extended.

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Field Service Campaign D23M3 - GHG17 DETROITTM DD16 Vibration Damper Replacement has been extended for an additional 6 months.

11000978

Technical Service Bulletin for New Final Drive Over Heat Diagnostic

10208391

Western Star Service Bulletin for DEF Connector Reinforcement Caps

10198595

Western Star Service Bulletin for Key Fob ID Retention.

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Key fobs for remote keyless entry on Western Star vehicles are delivered in packages that include a unique ID for the fob. The ID is required when pairing the key fob with a vehicle.

10187440

Revised Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance.

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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.

10183736

Revised Western Star Service Bulletin forDT12 PTO Upfit.

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This bulletin replaces the version dated 09/23/2019. DDCSN and Power Service Literature references have been removed.

10183733

Technical Service Letter for SPN 3711 FMI 31 on GHG17 DD15 Trucks.

10181052

DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts.

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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.

10180503

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.

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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.

10180359

Tech Talk discussion on blue tooth volume drop out on Western Star.

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Service Bulletin 54-074 was released on this issue.

10178006

Important Campaign Information letter announcing Dealer Travel for Campaign Performance.

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This letter is to announce a reimbursement available to dealers for travel to a customers location to perform a recall or field service campaign.

10177979

Warranty Information Letter for OWL and Warranty Manual Improvement: Sublets and Travel Time/Distance.

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In the spirit of continuous improvement, DTNA reviewed sublet-related policies and procedures. The goal was to improve language clarity and optimize processes.

10177838

Warranty Information Letter informing that to ensure that DTNA policies and service network practices align, the...

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Warranty Department will be revising the Warranty Manual.

10177649

Service Bulletin for Guidelines for Cleaning and Disinfecting Cab Surfaces.

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The following guidelines are for cleaning and disinfecting commonly touched surfaces on the inside and outside of a vehicle. For best results, follow cleaning and disinfecting procedures fully and consistently. Ensure there is adequate ventilation when using chemicals. NOTICE: Wipe down fragile components carefully to avoid damaging the vehicle.

10176789

Revised Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.

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A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

10175415

Technical Service Letter for DD Heavy Duty Platform Belt Tensioner Change.

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A newly designed, dual-arm friction shoe damping tensioner was implemented for the DD Heavy Duty Platform.

10174376

Warranty Information Letter for Warranty Training Online.

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DTNA is pleased to announce the release of new Warranty-related training videos. The videos provide Warranty content in short instructional videos that are available on demand through the AftermarkeTV Video Channel icon on the Aftermarket Resource Center (ARC) home page.

10174060

Warranty Policy Letter for Handling for Authorized Service Location Part Transfers.

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To promote 24-hour throughput and maximum efficiency, DTNA is adjusting multiple handling policies: Launching a new handling allowance for parts ordered from another Authorized Service Location because the facing Part Distribution Center (PDC) is out of stock Retiring Detroit's Customer First Program

10172579

Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty...

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managers.

10172547

Warranty Policy Letter explaining the Warranty Department is aligning with the frame rail repair policy, published in...

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DTNA Workshop Manuals, which states that there are very few cases in which welding a heat-treated frame rail is allowed. Therefore, before welding anything on a frame rail, contact the applicable regional service representative for approval.

10172025

Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and warranty...

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managers

10171976

Service Bulletin for Midship Bearing Replacement for built vehicles with driveshafts SPL140, SPL170 or SPL250 with first order driveline vibration.

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This version replaces bulletin from 12/19/19.

10171359

Revision to a Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch.

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The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported coverages in OWL. Revisions are in blue.

10170323

Service Solution for Western Star vehicles equipped with Hendrickson AIRTEK Axles experiencing a Harsh Ride.

10170299

Warranty Policy Letter announcing the One Stop Supplier Extended Program Launch.

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The One Stop Supplier Extended Program streamlines the claim filing process because with One Stop Supplier Extended, the service network will file claims for some supplier-supported extended coverages in OWL.

10169533

Service Bulletin for Midship Bearing Replacement for built vehicles with driveshafts SPL140, SPL170 or SPL250 with first...

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order driveline vibration.

10168094

Service Bulletin for midship bearing replacement.

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This procedure applies to all vehicles built with driveshafts SPL140, SPL170 or SPL250 with first order driveline vibration.

10168036

Warranty Policy letter announcing service locations have 90 calendar days from delivery to open a repair order which...

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Identifies and addresses discrepancies from the sales order.

10166801

WARRANTY INFORMATION LETTER for coverage validation

10166799

WARRANTY POLICY LETTER- Hold disposition for Parts has been eliminated

10166516

Tool Letter for updating Cascadia and Western Star 5700 oil-to-air coolers.

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To be used with service bulletins SB26-051 and SB26004 respectively.

10166512

Warranty Policy Letter- To assist customers and the service network regarding the Aftermarket Parts Limited Parts...

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Warranty (Parts Warranty).

10166432

Technical Service Letter communicating that information on DD Heavy Duty Platform Belt and Belt Tensioner can be found...

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on TechLit.

10165688

Parts and Service Committee meeting minutes

10165424

Service Bulletin for Powernet Distribution Box Functional Changes

10165421

Service Bulletin for DT12 PTO Upfit

10165419

Service Bulletin for Dealer Product Report

Other

18 bulletins
11024958

CX Advocate for ConMet Oil Pan Insert Additional Issues

11016309

CX Advocate for NOx conversion low faults

11014818

CX Advocate for NOx conversion low faults

11013204

CX Advocate for NOx conversion low faults

11013196

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...

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Clean Truck Check.

11011082

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...

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Clean Truck Check.

11010186

CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the...

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Clean Truck Check.

11007517

CX Advocate for ConMet Oil Pan Insert Additional Failures

11005494

CX Advocate for ConMet Oil Pan Insert Additional Failures

11003889

CX Advocate communication for NOx conversion low faults

11001976

Customer letter regarding variable speed water pump.

10194820

Tech Talk Discussion No comms with CPC, MCM or ACM

10193767

Removable Front Tow Hook Changes

10193763

Tractor Reflective Devices

10184908

Tech Talk discussion on Fan Override Switch Install.

10180382

Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.

10180082

Tech Talk Discussion for a Western Star 5700 fault code 2049-9 and 527-9.

10165427

Tool Letter for ICC5 Programming Cable

Engine

17 bulletins
11010143

Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines

11008508

Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines

10253879

Service Solution for DEF Pump Wiring for Cummins CM2450 Engine Controller

10190020

DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing...

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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 contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions.

10187900

Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters.

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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.

10187836

Technical Service Letter for Gen 5 DD15 Instrument Panel Oil Pressure Gauge Operation.

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Gen 5 DD15 equipped units have been brought in for service with a complaint of the instrument panel oil pressure gauge not moving during unit operation and/or stuck at 50PSI. The instrument panel oil pressure gauge does not operate the same as with previous engine models. Please be advised, this is normal operation and no further diagnostics are required. Do not down a unit for this complaint.

10180517

Detroit Diesel Special Publication informing about Heavy Duty Friction Style Belt Tensioner Kit.

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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.

10177608

Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines.

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Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.

10176258

Warranty Information Letter for a Warranty Service Replacement Engine Program Clarification.

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Detroit established the Warranty Service Replacement Engine Program to support an unrepairable catastrophic engine failure due to manufacturing defect. To improve understanding and utilization of the program, DTNA is clarifying eligibility and engine returns.

10173907

Warranty Information Letter for Warranty Long Block Program Change.

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The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments.

10172148

Technical Service Letter for DD Platform Heavy Duty, Metal in the Oil and Oil Filter.

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Some engine component failures can cause metallic debris to circulate throughout the engine lubrication system. Although the oil filter will capture most of this debris, some debris may enter the clean side of the lubrication system during oil filter bypass. Detroit has created a lubrication system cleaning and flushing procedure to address this problem.

10169699

Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire Harness...

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experiencing chaffing caused by vibration and dirt collecting in the harness conduit.

10168137

Service Bulletin explaining Western Star's courtesy engineering policy.

10166808

Customer Advisory Letter for WABCO HP air dryer turbo cut-off valve replacement.

10166807

Service Solution for WABCO HP air dryer turbo cut-off valve replacement.

10166510

Customer Service Announcement that eParts is being retired and that PartsPro should be used instead for Detroit Engine...

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Parts Information.

10165425

Field Service Campaign for Wabco HP Air Dryer Turbo Cut-off Valve

Electrical

15 bulletins
10198288

Western Star Service Solution for Low Voltage Disconnect (LVD) Troubleshooting: Western Star 5700 and New 4700.

10195575

Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...

10189332

Western Star Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter.

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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 vehicle Powernet issues.

10189319

Warranty Policy Letter for battery tags.

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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.

10187444

Warranty Information Letter for Detroit NOx Sensor Circuit Fault Codes - Claim Guidelines.

10181368

Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update.

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On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.

10181086

Western Star Service Bulletin for Ordering Options for Aftermarket Power Distribution Modules (PDMs).

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For certain Western Star 4700 or 5700 vehicles, power distribution modules (PDMs) are typically ordered in the aftermarket by serial number and populated with fuses and circuit breakers. It may take up to three weeks for a serial number specific PDM to be processed, made, and shipped to a dealership. In order to reduce the down time of a vehicle, an alternative PDM may be ordered fully populated with fuses and circuit breakers and delivered the next day. A cost increase may be associated with this option.

10176791

OEM and distributor announcement for Running Change to ACM Software for MY2020.

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There is an upcoming running change (RC1) for ACM software that will be installed when OEMs or distributors program with DiagnosticLink. The hardware part number for the ACM module will remain the same (A 000 446 97 54). OEMs are instructed to continue ordering the same ACM hardware part number.

10172975

Customer Advisory Letter for 6TS RP1226 Dash Harness Circuit Correction.

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Western Star model 4700 and 5700 vehicles may have reversed terminals 1 and 7 in the 14 pin connector on the A66-12703-000 harness for 6TS that offers the RP1226 connector in the dash.

10171362

Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness.

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Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.

10170320

Service Solution for Meritor Wabco OnGuard Radar Service Alignment.

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If the radar sensor needs to be aligned, the radar sensor mounting system has become damaged or has loosened, or new radar sensor software has been installed, a Radar Sensor Service Alignment will need to be performed.

10169679

Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems

10166782

Technical Service Letter Revision on heavy duty coolant oil module and oil filter change.

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Older modules will not be compatible with newer module.

10166525

Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Australia Electrical Systems.

10166524

Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Chile and Italy Electrical Systems

Fuel System

13 bulletins
11034507

Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals

11011076

Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates

10193762

Allison FuelSense 2.0

10190551

Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown.

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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.

10187524

Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for...

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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.

10183954

Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines...

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Service Kit.

10179249

Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2.

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On Thursday, September 3, 2020, Service Pack (SP) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.

10178945

Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign.

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Potential travel reimbursement applies to DTNA truck dealers and Detroit Diesel distributors. Thomas Built Buses will be addressed separately.

10177692

Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter (DPF) Compatibility.

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Note: This document supersedes 14 TS-25 and 15 TS-8. Detroit Diesel has determined that some, Diesel Particulate Filters (DPFs) are compatible in pairs and or can be mixed together within EPA10 and GHG14 Systems. For 1-BOX and Two-Box Configuration Aftertreatment Systems (ATS), this is only possible when the filters are used in accordance with Tables 1 and 2 shown below. All other DPFs, NOT mentioned below, are NOT compatible.

10177690

Customer Service Announcement informing that Service Pack (SP) 1 for DiagnosticLink 8.12 Standard and Professional is...

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available to download from the Detroit Diesel server.

10172649

Customer Service Announcement saying that Service Pack (SP) 3 for DiagnosticLink 8.11 Standard and Professional will be...

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available for download from the Detroit Diesel server.

10172136

Customer Service Announcement saying that Service Pack (SP) 2 for Diagnostic Link 8.11 Standard and Professional will be...

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available for download from the Detroit Diesel server.

10165423

Service Bulletin for Equiflo Fuel System Breather Tube Inspection

Transmission

13 bulletins
11003924

CX Advocate communication for clutch bolts

10210548

Important Campaign Information Letter for DDC D21M1 Termination Date Extended.

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This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.

10191148

Service Solution for DT12 Harness Chaffing - PT Can Faults.

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Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes.

10191143

Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal.

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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.

10189348

Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update.

10184029

Revised Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing.

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Revisions are in blue. With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one (1) or two (2) years and current parts, labor, and reimbursement policies apply.

10183988

Warranty Policy Letter for Alliance/Mascot Aftermarket Warranty and Claim Filing.

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With Mascot now in partnership with Detroit Reman and Alliance Parts, DTNA is pleased to announce that Mascot coverage has been added to OWL. Remanufactured Alliance/Mascot parts include transmission, differential, steering gear, and steering pump used in an on-highway vehicle applications. The Alliance/Mascot aftermarket warranty coverage period has not changed: depending on the part, coverage is for one (1) or two (2) years and current parts, labor, and reimbursement policies apply.

10182137

Detroit Diesel Field Service Campaign for DETROIT TM2020 Transmission Replacement.

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It has been discovered that certain TM2020 units have porosity issues in and around the oil cooler line fittings on the center housing.

10178944

Western Star Service Bulletin for DT12 Transmission Cooler Retrofit.

10173895

Service Bulletin for Lengthening the Backup Light Harness.

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Though the back-up light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.

10168678

Service Solution to address WST Cab drone / vibration / tapping Under acceleration for vehicles w/Eaton Manual Trans.

10168676

Service Solution for prematurely failing coolers on WST Models equipped with Allison Transmissions and Rocore...

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Transmission coolers (07-23256-001) with tow pin front X-member. Part number 07-25266-000 is a direct replacement of the failing coolers and requires no modifications or plumbing changes.

10165420

Service Bulletin for DT12 Transmission Cooler Retrofit

Body & Paint

9 bulletins
10202728

SF626 Western Star Window Replacement Inspection Notification.

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This letter is to inform you that Field Service Campaign SF626 Western Star Window Replacement Inspection Notification campaign was released.

10192962

Paint Peeling, Hood.

10182009

Tech Talk discussion on SS 1034711 HADLEY MIRROR

10175417

Service Solution for Hadley Upper Mirror Glass Vibration.

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The following suggestions are not guaranteed to eliminate or fix the Hadley mirror vibration concern. We have had mixed results in field-testing. In some cases, these solutions eliminate or reduce the vibration and in others, it does not seem to make a difference. DTNA continues to work on a permanent solution to this concern.

10175409

Service Bulletin for Window Regulator Retrofit.

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The bulletin dated December 4, 2019 has been revised to include 4800 Models. Beginning 04/01/2019 Western Star cab doors were updated to a new style regulator and window. When replacing an older style regulator or window the vehicle must be retrofitted to the new style regulator and window.

10169534

Service Bulletin for Window Regulator Retrofit.

10168038

Service Bulletin for paint finish standards.

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Delfleet One has been added for aftermarket use. This version replaces service bulletin dated May 5, 2017.

10166802

Service bulletin updating the Important Information section and adding instructions for proper visual inspection...

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distance for paint finish standards.

10165426

Warranty Policy Change for Delivery-Related Changes: Electronic Proof of Delivery and Loose Component Claim Filing

Lighting

9 bulletins
10187833

Revised Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14.

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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 faults.

10181369

Technical Service Letter for Cold Weather Faults on GHG17/21 DD13 with MCM Software Version 14.

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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 faults.

10177657

Customer Service Announcement for DiagnosticLink Software Update Reminder.

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Due to various software changes and fixes, vehicles will require DiagnosticLink 8.12 to perform functional programming. Failure to use this version may cause errors, incomplete programming, and poor vehicle performance. Because of this, all DiagnosticLink 8.09 installed versions will be disabled as of Thursday, July 23, 2020.

10174061

Warranty Policy Letter for Chassis Progressive Damage Policy Change.

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Effective for repair orders opened on or after April 27, 2020, if an Authorized Service Location installed a part which later has a warrantable failure, progressive damage and labor may be covered under the Aftermarket Parts Limited Parts Warranty (Parts Warranty).

10174052

Warranty Policy Letter for Handling Change: Over the Counter Aftermarket Parts Replacement Program.

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DTNA is pleased to announce that handling will increase to 33% for Misc. Replacement Part type claims filed under the Over the Counter (OTC) Aftermarket Parts Replacement Program.

10170856

Customer Service Announcement reminding service locations to update their DiagnosticLink software.

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To maintain access to the Detroit server, all DiagnosticLink computers must be updated with the current version of DiagnosticLink software. all DiagnosticLink 8.08 installed versions will be disabled as of Tuesday, January 28, 2020.

10170855

Customer Service Announcement for a policy change regarding Detroit Service Information Bulletins (SIBs) will now have a...

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60-day expiration, starting on the release day of the bulletin. The intent of a SIB is to notify the service network of a major change to one or more service procedures. Do not save SIBs nor reference them for repairs, as they are uncontrolled and never updated.

10168628

Customer Advisory Letter for Airliner welded axle seats.

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The welded axle seats were installed incorrectly on the rear most drive axle for specific vehicles resulting in an incorrect axle pinion angle. The existing welded axle seats will be removed and replaced with new axle seats installed in the correct orientation.

10168100

Service Solution concerning Western Star 5700 intermittent headlight issues.

Steering

7 bulletins
11020274

Parts Bulletin for Tie Rod Assembly Part Breakdown

11013219

Service Solution for Power Steering Reservoir Fill Cap Venting

10180350

Tech Talk discussion about power steering fluid.

10174986

Revision for Service Bulletin for Western Star 4700/5700 Pana-Pacific 540 Radio Controls Not Operating Normally.

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This bulletin replaces the version dated 03/25/2020. Pana-Pacific DEA540 radios (A22-74389-000, A22-77161-000) may cease to respond to volume control settings from the steering wheel switches or the controls on the radio faceplate, resulting in erratic volume control. This bulletin replaces the version dated March 26, 2020.The procedure to check the current software version of the radio is updated.

10172742

Revision for Service Bulletin for Western Star 5700 Pana-Pacific 540 Radio Controls Not Operating Normally.

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This bulletin replaces the version dated 02/07/2020. Pana-Pacific DEA540 radios (A22-74389-000, A22-77161-000) may cease to respond to volume control settings from the steering wheel switches or the controls on the radio faceplate, resulting in erratic volume control. Information about the firmware version this SB applies to has been included, the 4700 was added to the model list, and part numbers have been corrected.

10171363

Service Bulletin for Western Star 5700 Pana-Pacific 540 Radio Controls Not Operating Normally.

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Pana-Pacific DEA540 radios (A22-74389-000, A22-77161-000) may cease to respond to volume control settings from the steering wheel switches or the controls on the radio faceplate, resulting in erratic volume control.

10164535

Customer Advisory Letter for Steering Column Pinch Bolt Inspection

Software & Calibration

6 bulletins
11005500

CX Advocate for NOx conversion low faults.

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Update to CXA 6_24_NOx submission.

10207507

Revised Western Star Service Bulletin for Drive Line Vibration.

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Minor note: added an update of document previously submitted. The related VMRS codes are added

10190549

Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown.

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The updated times will be applied to repair orders opened on or after April 5, 2021.

10187835

Starting on November 23, 2020, DiagnosticLink 8.13 (Build 4527) was made available.

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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.

10177691

OEM and distributor announcement for DiagnosticLink 8.12 (Build 4527) was made available.

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All DTNA Service shops & OEM locations are required to maintain the latest version of software on each of their stations.

10176790

Customer Service Announcement for Release of DiagnosticLink 8.12.

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On Wednesday, June 10, 2020, DiagnosticLink 8.12 will be made available for download from the ordering system. Current subscribers of DiagnosticLink 8.xx can upgrade to DiagnosticLink 8.12 at no cost. All DTNA service shops are required to maintain the latest version of software on each of their stations.

Brakes

5 bulletins
10189335

Updated Western Star Parts Technical Bulletin for Universal Design Floor Mats.

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This bulletin replaces the version dated February 12, 2021. Information about parts notes in the Paragon system have been added and the trimming instructions are revised. Universal floor mat designs fit multiple cab configurations and may require trimming. Trim lines displaying size options are scored into the pad side of the mat; use an existing floor mat as a guide for optimal results. The new mat should not interfere with safety-critical equipment, such as foot pedals.

10184656

Western Star Service Bulletin for Access to Front Brake Zerk Fittings.

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Certain vehicles with Detroit front axles and Meritor EX-L front air disc brakes do not have access to the front brake zerk fittings for lubrication.

10177689

Training Solution for Western Star Front Brake Squeal - Burnishing Procedure.

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The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.

10177607

Western Star Service Bulletin for Meritor Steer Axle Drum Brake Squeal.

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Some Western Star 5700 vehicles equipped with Meritor steer axle drum brakes with a front axle rating less than 13,300 lb (6038 kg) have experienced brake squealing noise when the service brakes are applied at lower speeds. NOTE: This is a nuisance noise issue and not a failure. The solution given in this service bulletin may fix this issue.

10176149

Customer Advisory Letter for ABS ECU Software Update.

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The Enhanced Stability Control (ESC) function within the ABS module that applies to the vehicles in your possession needs to be updated for the axle spread values. The ESC with the current values functions as it should, but should be updated to ensure proper calibration in the future.

HVAC & Climate

3 bulletins
10214907

Updated Western Star Service Bulletin for HVAC Actuator Replacement

10170266

Service Bulletin on A/C System Receiver-Drier Replacement Guidelines.

10165494

Service Solution to fix AC cooling performance due to improper HVAC function.

Suspension

3 bulletins
10184788

Western Star Service Bulletin for Axle Flange Gasket Replaced with O-Ring.

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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 the hub when the axle shaft is removed.

10177605

Western Star Bulletin for Non-Airliner Rear Suspension Crossmember Fastener Change.

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With the start of production on March 2, 2020, the fasteners used to assemble the non-Airliner rear suspension (bogie) crossmember have changed. The rear suspension bogie crossmember gussets to the C-channel will be assembled with 5/818 fasteners. This change includes a revision to a higher friction nut that requires an increase in tightening torque. The new higher friction nut can be identified by its green color.

10165422

Service Bulletin for Hub Oil Level in Final Drive (NFD) Top Performance Axles on Decked Vehicles

Infotainment

1 bulletin
10207520

Revised Western Star Service Bulletin for Pana-Pacific 540 Radio Controls Not Operating Normally.

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Minor note: added an update of document previously submitted. The related VMRS codes are added