2026 Volvo VHD TSBs
16 Technical Service Bulletins across 7 categories
Electrical
4 bulletinsOverheating has been observed at the alternator power cable and ground cable connection, resulting in melted insulation around the terminal area.
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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 affect electrical conductivity and charging system performance.
CBR - No Start Condition After Over the Air Programing - VECU5 No Start "Safe State"
CBR - Volvo DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and US22+OBD23 (DOES NOT APPLY TO...
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VN(4))
CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a...
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Critical failure, the vehicle will remain in Safe State.
Other
4 bulletinsThe ELD connected to the RP1226 connector in the truck remains powered on always.
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As a result in the batteries being depleted within a very short amount of time (a few hours after the truck is shut down).
The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With...
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intermittent loss of throttle.
CBR - Volvo Chassis - Model VHD - Splash Shield Rubbing Lower Cowl - Model Year 2018 - Current.
CBR - Frame or Cab Lean
Engine
4 bulletinsSC - Front Engine Accessory Drive Update.
SC - S4643 January 2026 Front Engine Accessory Drive Update.
CBR - 3 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In...
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Between The Coolant Pump Housing And Oil Cooler Housing
CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In...
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Between The Coolant Pump Housing And Oil Cooler Housing
HVAC & Climate
1 bulletinThis CBR solution addresses the issue of binding between the outer air filter housing and inner HVAC box due to...
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misalignment during installation.
Air Bags & Safety
1 bulletinIf you have received this document, it is because one or more of the following Faults has been active for at least 5...
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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.
Suspension
1 bulletinCBR - Z Spring Bracket Wear.
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Volvo Chassis
Transmission
1 bulletinCBR - Volvo Chassis - I-Shift Transmission - Moisture / Contamination Found In The Transmission Electronic Control Unit...
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(TECU ) Air Ports And Control Housing.