TSB V-257-001 082026
Service Bulletin/Repair Instructions
TSB - Engine, crankcase ventilation, oil leakage.
Vehicle report
2026 VOLVO VNR (4)
Service bulletins
68 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSB V-861-001 082026
Service Bulletin/Repair Instructions
TSB - Under Hood Contamination Prevention.
CBR 2599-1 082026
Service Bulletin/Repair Instructions
CBR - Aggressive Trailer Braking Troubleshooting Guide.
CBR 2598-2 082026
Service Bulletin/Repair Instructions
CBR - Injector Widget to Assist in Proper Diagnostic / Injector Repair caused by offset learning max and misfire.
CBR 2429-5 082026
Service Bulletin/Repair Instructions
CBR - Flexible Switch Panel Replacement and Calibration Procedures.
CBR 2596-1 082026
Service Bulletin/Repair Instructions
CBR - ECM Failure - No Crank/Engine Start Condition.
TSB V-590-001 072026
Service Bulletin/Repair Instructions
TSB - Wheel Speed Sensor Fitting and Cable Clamping.
CBR 2585-3 072026
Service Bulletin/Repair Instructions
CBR - The purpose of this CBR is to provide support for fault codes C106718 and/or C106818.
CBR 2545-3 072026
Service Bulletin/Repair Instructions
CBR - The purpose of this CBR is to provide guidance on fault code U114688.
TSB V-371-005 072026
Service Bulletin/Repair Instructions
TSB - Jumper Harness Repair.
CBR-2592-1 202606
Service Bulletin/Repair Instructions
The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.
CBR-2590-2 202606
Service Bulletin/Repair Instructions
The purpose of this CBR is to provide steps on how to correct a customer complaint of instrument cluster going dark (blackout) situation.
CBR-2591-1 202606
Service Bulletin/Repair Instructions
The purpose of this CBR it to provide release notes for the recent Engine ECU software.
CBR-2494-19 202606
Service Bulletin/Repair Instructions
The VN(4)'s electrical architecture relies on multiple ECUs, each handling specific functions. To ensure seamless operation and peak system performance, it is essential that all ECUs run the same software version (Software Baseline). This is accomplished by installing a complete software baseline, which is delivered via service pack.
CBR-2568-5 202606
Service Bulletin/Repair Instructions
Contact Workshop; Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 And A Startability Issue.
CBR-2587-2 202606
Service Bulletin/Repair Instructions
The purpose of this cbr is to provide steps on how to protect the alternator power cable connection from corrosion.
CBR-2586-1 202606
Service Bulletin/Repair Instructions
The purpose of this CBR is to address issues of exhaust stack rotation on version 4 products.
CBR-2465-7 202606
Service Bulletin/Repair Instructions
The purpose of this CBR is to help diagnosis issues with the Proactive Engine Restart system and Hood Open popup message.
CBR-2588-2 202606
Service Bulletin/Repair Instructions
The purpose of this CBR is to provide aid in VMCU fault B1524-49 along with a Rain sensor which will not calibrate.
CBR -2465 202605
Service Bulletin/Repair Instructions
The purpose of this CBR is to help diagnosis issues with the Proactive Engine Restart system and Hood Open popup message.
RD26-2 202605
Over The Air
If you have received this document, it is because one or more of the following Faults has been active for at least 5 minutes and can potentially prevent the Supplemental Restraint System/Airbag Inflation System (SRS) from functioning properly in the event of a collision. Tech Tool will need to be used for more detailed diagnostics.
CBR- 2587 202605
Service Bulletin/Repair Instructions
The purpose of this cbr is to provide steps on how to protect the alternator power cable connection from corrosion.
CBR-2494 202605
Service Bulletin/Repair Instructions
The purpose of this CBR is address when you should update to 6.0 service pack.
CBR-2583 202605
Service Bulletin/Repair Instructions
The purpose of this CBR is to assist in diagnosing Tire Pressure Monitoring System (TPMS) DTCs U101A /U101B as well as instructions to replace the TPMS Range Extends and Wireless Sensor Gateway if it is determined it is required.
CBR -2585 202605
Service Bulletin/Repair Instructions
The purpose of this CBR is to provide support for fault codes C106718 and/or C106818.
CBR-2584-202605
Service Bulletin/Repair Instructions
When calibrating ECS, the PTT instructions may be lacking needed information.
CBR-2435 202605
Service Bulletin/Repair Instructions
This CBR solution provides guidelines for ensuring the correct position of battery sensor modules and battery sensor harnesses on the Volvo VN(4) chassis, as well as the Battery Sensor Diagnostic, Calibration, and Configuration Procedure.
CBR-2456 202605
Service Bulletin/Repair Instructions
This CBR solution provides guidance on updating the infotainment system when customer is missing applications and/or having issues with navigation or Apple/Android CarPlay.
CBR 2441-8 202604
Service Bulletin/Repair Instructions
CBR - Key Fob Calibration and/or Replacement.
CBR 2568-3 202604
Service Bulletin/Repair Instructions
CBR - Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 and a Startability Issue.
RD26-1 202604
Over The Air
RD - Over the Air Transmission Oil Level Sensor.
CBR 2574 202604
Service Bulletin/Repair Instructions
CBR - Manual TPMS wheel sensor calibration.
CBR 2562-15 202604
Service Bulletin/Repair Instructions
CBR - Electric Pneumatic Module (EPM) Fault Code C10C256
CBR 2569-3 202604
Service Bulletin/Repair Instructions
CBR - Brake Pad Wear Indicator DTC C107E68.
CBR 2540-7 202604
Service Bulletin/Repair Instructions
CBR - Upper Bunk Restraint System – Plastic Gable Retention Field Fix
SC S4864 202604
Service Campaign
SC - Alternator Tensioner Belt
SC S4922 202604
Service Campaign
SC - Steering Shaft Replacement.
TSB V-561-002 202604
Service Bulletin/Repair Instructions
TSB - Compressor Discharge Line Routing.
CBR 2570-1 032026
Service Bulletin/Repair Instructions
CBR - EBS - Electro-Pneumatic Module - Signal Compare Failure DTC C109562 - VN (4).
CBR 2172-7 032026
Service Bulletin/Repair Instructions
CBR - No Start Condition After Over the Air Programing - VECU5 No Start "Safe State"
CBR 2564-1 032026
Service Bulletin/Repair Instructions
CBR - Check Radar Pop-up Message - VN (4).
TSB V-375-001 032026
Service Bulletin/Repair Instructions
TSB - Reversing Camera Harness, Repair.
CBR 2565-1 032026
Service Bulletin/Repair Instructions
CBR - Trailer, 12Volt Right/Left Direction Indicator Circuit Warning VN (4).
CBR 2246-5 032026
Service Bulletin/Repair Instructions
CBR - Z Spring Bracket Wear. Volvo Chassis
CBR 2522-5 202601
Service Bulletin/Repair Instructions
CBR - Frequent Parked Regeneration Requests - VN (4).
CBR 2443-4 202601
Service Bulletin/Repair Instructions
CBR - Trailer Tandem Adjustment Procedure - VN (4).
CBR 2494-11 202601
Service Bulletin/Repair Instructions
CBR - The purpose of this CBR is outline the interim software solution for VN4. Note that this document is subject to updates and currently covers Service Pack updates to B1_T2_5.1.
CBR 2548-1 202601
Service Bulletin/Repair Instructions
CBR - Shock Interference With “Z” Springs.
CBR 2540-5 202601
Service Bulletin/Repair Instructions
CBR - Upper Bunk Restraint System – Plastic Gable Retention Field Fix.
CBR 2408-16 202601
Service Bulletin/Repair Instructions
CBR - Air Production Modulator (APM) DTC C10129B - High/Excessive Flow - VN (4).
CBR 2435-16 202601
Service Bulletin/Repair Instructions
CBR - Volvo Chassis - Battery Sensor Diagnostic and Calibration Procedure - VN (4).
CBR 2545-1 202601
Service Bulletin/Repair Instructions
CBR - U114688 VMCU Communication Fault - VN (4).
CBR 2516-6 202601
Service Bulletin/Repair Instructions
CBR - CMS Black Screen Troubleshooting - VN(4).
FI S4703 202601
Service Campaign
FI - Elemental Chassis Fairing Replacement.
SC S4642 202601
Service Campaign
SC - Front Engine Accessory Drive Update.
SC S4743 202601
Service Campaign
SC - MCO/VECI Label Reprint.
CBR 2532-1 202511
Service Bulletin/Repair Instructions
CBR - Automatic High Beam - VN (4).
S4591 202511
Service Campaign
CBR - VN(4) Parking Heater Plumbing.
CBR 2494-7 202511
Service Bulletin/Repair Instructions
CBR - The purpose of this CBR is outline the interim software solution for VN4.
CBR 2016-18 202511
Service Bulletin/Repair Instructions
CBR - Frame or Cab Lean
CBR 2526-4 202511
Service Bulletin/Repair Instructions
CBR - Parking Heater Inoperative - VN (4).
CBR 2514--2 202511
Service Bulletin/Repair Instructions
CBR - Lost Communication to Alternator Message - DTC C103508.
CBR 2518-2 202511
Service Bulletin/Repair Instructions
CBR - Load Lock Clamp Breaking - VN (4).
CBR 2525-2 202511
Service Bulletin/Repair Instructions
CBR - Exhaust Leak or Noise – Turbo Compound (TC) Bolt Inspection and Repair - VN (4).
CBR 2527-1 202511
Service Bulletin/Repair Instructions
CBR - Center Chassis Input Output Module(CCIOM) Fault Code U3000-94 - VN (4).
CBR 2408-15 202511
Service Bulletin/Repair Instructions
CBR - Air Production Modulator (APM) DTCC10129B - High/Excessive Flow - VN (4).
CBR 2467-5 202511
Service Bulletin/Repair Instructions
CBR - Service Required Message - VN (4).
CBR 2521-1 202511
Service Bulletin/Repair Instructions
CBR - Xantrex Inverter Sub-hardware Mismatch.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.