2020 Volvo VN Technical Service Bulletins

265 technical service bulletins (TSBs) are on record for the 2020 Volvo VN. 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.

• 11037669Sep 21, 2026Electrical system. Overheating has been observed at the alternator power cable and ground cable connection, resulting in melted insulation around the terminal area. The alternator power cable connection should maintain a stable electrical contact without overheating or insulation damage during normal vehicle operation. The alternator power cable shows signs of overheating and melted insulation at the connection point, which may…
• 11037659Sep 17, 2026Other or unknown, Electrical system. This CBR solution addresses the issue of binding between the outer air filter housing and inner HVAC box due to misalignment during installation.
• 11030480Mar 3, 2026Other or unknown, Electrical system. Emissions _ EC0039 MST21 Failure to Detect P20EE.
• 11030472Mar 3, 2026Suspension. CBR - Z Spring Bracket Wear. Volvo Chassis
• 11029345Feb 9, 2026Visibility (wipers, defrost, mirrors). CBR - It has been found that the hood may not properly deflect water away from the "bird-beak" openings around the windshield opening.
• 11028025Jan 9, 2026Transmission and drivetrain. CBR - Volvo Chassis - I-Shift Transmission - Moisture / Contamination Found In The Transmission Electronic Control Unit (TECU ) Air Ports And Control Housing.
• 11028007Jan 7, 2026Engine. CBR - Volvo DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and US22+OBD23 (DOES NOT APPLY TO VN(4))
• 11028020Jan 5, 2026Body and structure. CBR - Volvo Chassis – Grille Spacers Loosening Over Time.
• 11026966Dec 4, 2025Engine. CBR - 3 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing
• 11025998Nov 18, 2025Suspension. CBR - Frame or Cab Lean
• 11025997Nov 11, 2025Engine. CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing
• 11021307Jul 28, 2025Other or unknown, Electrical system. CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
• 11021309Jul 17, 2025Vehicle speed control. CBR - US17AbstractVolvo Chassis equipped with Volvo Active Driver Assist may display DTC / Fault code SPN 516103 FMI 19 on Premium Tech Tool ( PTT ) or J-Pro, and code 167 in Bendix ACOM software.
• 11018822May 28, 2025Engine. Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100)
• 11018825May 13, 2025Electrical system, Body and structure. Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
• 11018823May 13, 2025Body and structure. It has been found that the hood may not properly deflect water away from the "bird-beak" openings around the windshield opening.
• 11018834May 6, 2025Lane departure, Electrical system. Volvo Chassis equipped with Volvo Active Driver Assist may display DTC / Fault code SPN 516103 FMI 19 on Premium Tech Tool (PTT) or J-Pro, and code 167 in Bendix ACOM software.
• 11018836May 1, 2025Other or unknown, Body and structure. Volvo Chassis - Frame Or Cab Lean
• 11018824May 1, 2025Fuel system. Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23
• 11017730Apr 29, 2025Engine. TSB - Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor Replacement.
• 11017715Apr 2, 2025Transmission and drivetrain. Fleet Campaign - Certain VN model trucks could experience excessive moisture build up within chassis mounted auxiliary air tank due to limited driver access to I-Shift air tank drain.
• 11016396Mar 17, 2025Electrical system. CBR - Driver Display Popup Error "Door Is Open. Shift Transmission To Neutral." -Instrument Cluster Software Update
• 11016368Mar 12, 2025Engine, Fuel system. CBR - Vertical Exhaust Aftertreatment System (EATS) Catalyst Cracking -Trucks Equipped With a Cummins 12LCompressed Natural Gas (CNG) Engine
• 11016360Mar 6, 2025Engine. CBR - 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
• 11014700Feb 20, 2025Brakes. CBR - The new Central Pressure Control (CPC) system has changed the way that the ABS chuff test is performed.
• 11014702Feb 12, 2025Body and structure, Other or unknown, Suspension. CBR - Troubleshooting cab lean should only begin after completing a vehicle preparation procedure to ensure all components are in place and settled.
• 11014705Feb 1, 2025Body and structure. TSB - Due to cracking in the step area of the fairing, an updated support bracket has been introduced. The new support bracket will provide the better structure behind the fairing, reducing the likelihood of cracking.
• 11013451Jan 31, 2025Electrical system. CBR - Volvo Chassis - No-Crank Issue After Programming
• 11013431Jan 22, 2025Other or unknown, Body and structure. CBR - Frame Or Cab Lean
• 11012131Dec 17, 2024Fuel system. These repair instructions are intended to address the following fault(s): P009B-13 (Electric Pressure Relief Valve – Circuit Open).
• 11012120Dec 3, 2024Suspension, Other or unknown. Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues.
• 11012177Dec 1, 2024Electrical system. Volvo Trucks has identified that some VN model vehicles equipped with auxiliary power unit batteries may experience insufficient battery system charging. This could lead to early battery failure and improper functioning of the auxiliary power systems. Follow the instructions in the attached document to upgrade the charging system.
• 11010811Nov 15, 2024Engine. Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
• 11009762Nov 1, 2024Engine. CBR - Volvo Chassis - Timing Gear Plate Repair
• 11009742Oct 8, 2024Exterior lighting, Electrical system. CBR - Volvo VN Chassis - Headlight High Beams Do Not Function From Stalk Switch
• 11009748Oct 1, 2024Engine, Fuel system. CBR - Volvo Chassis - Diagnostic Trouble Code (DTC) P009B13 Fuel Pressure Relief Control – Circuit Open; Possible Derate - US17+OBD16 And US17+OBD18 Emissions
• 11008307Sep 21, 2024Fuel system, Electrical system. CBR - US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
• 11008305Sep 18, 2024Other or unknown. CBR - Volvo Chassis - HVAC Fresh Air Door Binding
• 11008304Sep 18, 2024Transmission and drivetrain. CBR - Vehicles Equipped With A Lift Axle - Wheel Speed Fault Code SPN 793, SPN 794 Set When Axle Is Up
• 11008302Sep 16, 2024Transmission and drivetrain. CBR - Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
• 11006947Aug 30, 2024Body and structure. CBR: On certain VNL model Volvos built August 21 , 2017 through January 01,2021 and equipped with chassis fairing p/n 84744212 or 84744213, the DEF fill door in the fairing may become loose or break.
• 11006952Aug 29, 2024Forward collision avoidance. CBR: Volvo Chassis - Equipped With Volvo Active Driver Assist( VADA ),With Or Without Lane Departure Warning(LDWS )-Diagnostic Trouble Code ( DTC )SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message-US17 And Newer
• 11006949Aug 28, 2024Transmission and drivetrain. CBR: On Volvo chassis with an I-Shift and Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being replaced due to technicians being unable to pinpoint the source of the air leak.
• 11006951Aug 13, 2024Engine. CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
• 11006950Aug 13, 2024Engine. CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)
• 11006957Aug 6, 2024Transmission and drivetrain. CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
• 11005400Jul 30, 2024Engine. CBR: Turbo Compound 2nd Generation - EGR And / Or DPF Diagnostic Trouble Codes(DTC), Diagnostic And Repair Information
• 11005403Jul 2, 2024Electrical system. CBR: Telematics Gateway (TGW) Connect Ability Issues
• 11002821Jun 18, 2024Electrical system, Other or unknown, Vehicle speed control. CBR - Accelerator Pedal: Inspection/Instructions
• 11000870May 24, 2024Electrical system, Steering. CBR - Volvo Chassis - Equipped With Volvo Active Driver Assist ( VADA ), With Or Without Lane Departure warning ( LDWS ) .

← All problems reported for the 2020 Volvo VN