Vehicle report

2023 VOLVO VNL (4)

Service bulletins

24 bulletins

Technical 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.

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-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-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.

RD26-1 202604

Over The Air

RD - Over the Air Transmission Oil Level Sensor.

CBR 2172-7 032026

Service Bulletin/Repair Instructions

CBR - No Start Condition After Over the Air Programing - VECU5 No Start "Safe State"

TSB V-375-001 032026

Service Bulletin/Repair Instructions

TSB - Reversing Camera Harness, Repair.

CBR 2246-5 032026

Service Bulletin/Repair Instructions

CBR - Z Spring Bracket Wear. Volvo Chassis

S4674 202512

Service Campaign

SC - Cab Leveling Bar Loose

CBR 2016-18 202511

Service Bulletin/Repair Instructions

CBR - Frame or Cab Lean

CBR 2495-4 202511

Service Bulletin/Repair Instructions

CBR - Carb 24 Phase 1 - 48V Diagnostics Guide.

CBR 2465 092025

Service Bulletin/Repair Instructions

This CBR pertains to two issues that may arise with the Proactive Engine Restart (Remote Engine Start System).

CBR 2172-5 082025

Service Bulletin/Repair Instructions

CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.

CBR 2488 072025

Service Bulletin/Repair Instructions

CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.

CBR 939 072025

Service Bulletin/Repair Instructions

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.

CBR 2408 072025

Service Bulletin/Repair Instructions

CBR - This document provides guidance for addressing the Air Production􀁡Modulator (APM) DTC C10129B fault, "High/Excessive Flow" This fault was introduced by a previous APM software package and requires specific containment actions.

CBR 2425 072025

Service Bulletin/Repair Instructions

CBR - This CBR solution outlines the analysis of temperature changes in sensors T1, T2, and T3 and provides a procedure for inspecting and addressing potential sensor issues related to AHI fuel injection.

CBR 2465-2 072025

Service Bulletin/Repair Instructions

CBR - This CBR pertains to two issues that may arise with the Proactive Engine Restart (Remote Engine Start System).

CBR 2431-5 202506

Service Bulletin/Repair Instructions

CBR - This CBR solution addresses crank no start and engine dying issues in some VN (4)models caused by an incorrect fuel line configuration and/or fuel line fitting not seated correctly.

CBR 2477-1 202506

Service Bulletin/Repair Instructions

CBR - The purpose of this CBR is outline the interim software solution for VN4.

CBR 2468-2 202505

Service Bulletin/Repair Instructions

The purpose of this CBR is to help diagnosis an electrically faulty door latch.

CBR 2016-14 202505

Service Bulletin/Repair Instructions

Volvo Chassis - Frame Or Cab Lean

CBR 2431-4 202504

Service Bulletin/Repair Instructions

CBR - This CBR solution addresses crank no start and engine dying issues in some VN (4)models caused by an incorrect fuel line configuration and/or fuel line fitting not seated correctly.

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.