TSB: VOLVO VAH, VHD, VNM, VNR, VNX, VOLVO TRUCK (2010–2024)

Bulletin KC-776 — January 4, 2022

Bulletin Details

Bulletin IDKC-776
ManufacturerVOLVO
ModelsVAH, VHD, VNM, VNR, VNX, VOLVO TRUCK
Model Years2010–2024
Date IssuedJanuary 4, 2022
Date Added to NHTSAApril 3, 2023
ComponentSERVICE BRAKES, AIR
Vehicles Affected120 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Volvo Chassis - Electronically Controlled Air Dryer System (ECADS) Building Too Much Air Pressure; Pressure Relief Valve Opening

Affected Vehicles

MakeModelYearComponent
VOLVO VAH 2024 040000 SERVICE BRAKES, AIR
VOLVO VAH 2024 110000 ELECTRICAL SYSTEM
VOLVO VHD 2024 040000 SERVICE BRAKES, AIR
VOLVO VHD 2024 110000 ELECTRICAL SYSTEM
VOLVO VNR 2024 040000 SERVICE BRAKES, AIR
VOLVO VNR 2024 110000 ELECTRICAL SYSTEM
VOLVO VAH 2023 040000 SERVICE BRAKES, AIR
VOLVO VAH 2023 110000 ELECTRICAL SYSTEM
VOLVO VHD 2023 040000 SERVICE BRAKES, AIR
VOLVO VHD 2023 110000 ELECTRICAL SYSTEM
VOLVO VNR 2023 040000 SERVICE BRAKES, AIR
VOLVO VNR 2023 110000 ELECTRICAL SYSTEM
VOLVO VAH 2022 040000 SERVICE BRAKES, AIR
VOLVO VAH 2022 110000 ELECTRICAL SYSTEM
VOLVO VHD 2022 040000 SERVICE BRAKES, AIR
VOLVO VHD 2022 110000 ELECTRICAL SYSTEM
VOLVO VNR 2022 040000 SERVICE BRAKES, AIR
VOLVO VNR 2022 110000 ELECTRICAL SYSTEM
VOLVO VAH 2021 040000 SERVICE BRAKES, AIR
VOLVO VAH 2021 110000 ELECTRICAL SYSTEM
VOLVO VHD 2021 040000 SERVICE BRAKES, AIR
VOLVO VHD 2021 110000 ELECTRICAL SYSTEM
VOLVO VNM 2021 040000 SERVICE BRAKES, AIR
VOLVO VNM 2021 110000 ELECTRICAL SYSTEM
VOLVO VNR 2021 040000 SERVICE BRAKES, AIR
VOLVO VNR 2021 110000 ELECTRICAL SYSTEM
VOLVO VNX 2021 040000 SERVICE BRAKES, AIR
VOLVO VNX 2021 110000 ELECTRICAL SYSTEM
VOLVO VAH 2020 040000 SERVICE BRAKES, AIR
VOLVO VAH 2020 110000 ELECTRICAL SYSTEM
VOLVO VHD 2020 040000 SERVICE BRAKES, AIR
VOLVO VHD 2020 110000 ELECTRICAL SYSTEM
VOLVO VNM 2020 040000 SERVICE BRAKES, AIR
VOLVO VNM 2020 110000 ELECTRICAL SYSTEM
VOLVO VNR 2020 040000 SERVICE BRAKES, AIR
VOLVO VNR 2020 110000 ELECTRICAL SYSTEM
VOLVO VNX 2020 040000 SERVICE BRAKES, AIR
VOLVO VNX 2020 110000 ELECTRICAL SYSTEM
VOLVO VAH 2019 040000 SERVICE BRAKES, AIR
VOLVO VAH 2019 110000 ELECTRICAL SYSTEM
VOLVO VHD 2019 040000 SERVICE BRAKES, AIR
VOLVO VHD 2019 110000 ELECTRICAL SYSTEM
VOLVO VNM 2019 040000 SERVICE BRAKES, AIR
VOLVO VNM 2019 110000 ELECTRICAL SYSTEM
VOLVO VNR 2019 040000 SERVICE BRAKES, AIR
VOLVO VNR 2019 110000 ELECTRICAL SYSTEM
VOLVO VNX 2019 040000 SERVICE BRAKES, AIR
VOLVO VNX 2019 110000 ELECTRICAL SYSTEM
VOLVO VAH 2018 040000 SERVICE BRAKES, AIR
VOLVO VAH 2018 110000 ELECTRICAL SYSTEM
VOLVO VHD 2018 040000 SERVICE BRAKES, AIR
VOLVO VHD 2018 110000 ELECTRICAL SYSTEM
VOLVO VNM 2018 040000 SERVICE BRAKES, AIR
VOLVO VNM 2018 110000 ELECTRICAL SYSTEM
VOLVO VNR 2018 040000 SERVICE BRAKES, AIR
VOLVO VNR 2018 110000 ELECTRICAL SYSTEM
VOLVO VNX 2018 040000 SERVICE BRAKES, AIR
VOLVO VNX 2018 110000 ELECTRICAL SYSTEM
VOLVO VAH 2017 040000 SERVICE BRAKES, AIR
VOLVO VAH 2017 110000 ELECTRICAL SYSTEM
VOLVO VHD 2017 040000 SERVICE BRAKES, AIR
VOLVO VHD 2017 110000 ELECTRICAL SYSTEM
VOLVO VNM 2017 040000 SERVICE BRAKES, AIR
VOLVO VNM 2017 110000 ELECTRICAL SYSTEM
VOLVO VNR 2017 040000 SERVICE BRAKES, AIR
VOLVO VNR 2017 110000 ELECTRICAL SYSTEM
VOLVO VNX 2017 040000 SERVICE BRAKES, AIR
VOLVO VNX 2017 110000 ELECTRICAL SYSTEM
VOLVO VAH 2016 040000 SERVICE BRAKES, AIR
VOLVO VAH 2016 110000 ELECTRICAL SYSTEM
VOLVO VHD 2016 040000 SERVICE BRAKES, AIR
VOLVO VHD 2016 110000 ELECTRICAL SYSTEM
VOLVO VNM 2016 040000 SERVICE BRAKES, AIR
VOLVO VNM 2016 110000 ELECTRICAL SYSTEM
VOLVO VNX 2016 040000 SERVICE BRAKES, AIR
VOLVO VNX 2016 110000 ELECTRICAL SYSTEM
VOLVO VAH 2015 040000 SERVICE BRAKES, AIR
VOLVO VAH 2015 110000 ELECTRICAL SYSTEM
VOLVO VHD 2015 040000 SERVICE BRAKES, AIR
VOLVO VHD 2015 110000 ELECTRICAL SYSTEM
VOLVO VNM 2015 040000 SERVICE BRAKES, AIR
VOLVO VNM 2015 110000 ELECTRICAL SYSTEM
VOLVO VNX 2015 040000 SERVICE BRAKES, AIR
VOLVO VNX 2015 110000 ELECTRICAL SYSTEM
VOLVO VAH 2014 040000 SERVICE BRAKES, AIR
VOLVO VAH 2014 110000 ELECTRICAL SYSTEM
VOLVO VHD 2014 040000 SERVICE BRAKES, AIR
VOLVO VHD 2014 110000 ELECTRICAL SYSTEM
VOLVO VNM 2014 040000 SERVICE BRAKES, AIR
VOLVO VNM 2014 110000 ELECTRICAL SYSTEM
VOLVO VNX 2014 040000 SERVICE BRAKES, AIR
VOLVO VNX 2014 110000 ELECTRICAL SYSTEM
VOLVO VAH 2013 040000 SERVICE BRAKES, AIR
VOLVO VAH 2013 110000 ELECTRICAL SYSTEM
VOLVO VHD 2013 040000 SERVICE BRAKES, AIR
VOLVO VHD 2013 110000 ELECTRICAL SYSTEM
VOLVO VNM 2013 040000 SERVICE BRAKES, AIR
VOLVO VNM 2013 110000 ELECTRICAL SYSTEM
VOLVO VNX 2013 040000 SERVICE BRAKES, AIR
VOLVO VNX 2013 110000 ELECTRICAL SYSTEM
VOLVO VAH 2012 040000 SERVICE BRAKES, AIR
VOLVO VAH 2012 110000 ELECTRICAL SYSTEM
VOLVO VHD 2012 040000 SERVICE BRAKES, AIR
VOLVO VHD 2012 110000 ELECTRICAL SYSTEM
VOLVO VNM 2012 040000 SERVICE BRAKES, AIR
VOLVO VNM 2012 110000 ELECTRICAL SYSTEM
VOLVO VAH 2011 040000 SERVICE BRAKES, AIR
VOLVO VAH 2011 110000 ELECTRICAL SYSTEM
VOLVO VHD 2011 040000 SERVICE BRAKES, AIR
VOLVO VHD 2011 110000 ELECTRICAL SYSTEM
VOLVO VNM 2011 040000 SERVICE BRAKES, AIR
VOLVO VNM 2011 110000 ELECTRICAL SYSTEM
VOLVO VAH 2010 040000 SERVICE BRAKES, AIR
VOLVO VAH 2010 110000 ELECTRICAL SYSTEM
VOLVO VHD 2010 040000 SERVICE BRAKES, AIR
VOLVO VHD 2010 110000 ELECTRICAL SYSTEM
VOLVO VNM 2010 040000 SERVICE BRAKES, AIR
VOLVO VNM 2010 110000 ELECTRICAL SYSTEM
VOLVO VOLVO TRUCK 110000 ELECTRICAL SYSTEM
VOLVO VOLVO TRUCK 350000 EQUIPMENT

Related VOLVO Recalls

CampaignModelYearComponentSummary
VNL (4) 2026 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Volvo Trucks North America (Volvo Trucks) is recalling certain 2026-2027 VNR ...
VNL (4) 2027 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Volvo Trucks North America (Volvo Trucks) is recalling certain 2026-2027 VNR ...
VNR (4) 2027 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Volvo Trucks North America (Volvo Trucks) is recalling certain 2026-2027 VNR ...
VNL (4) 2025 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Volvo Trucks North America (Volvo Trucks) is recalling certain 2026-2027 VNR ...
VNR (4) 2026 SERVICE BRAKES, AIR:ANTILOCK:CONTROL ... Volvo Trucks North America (Volvo Trucks) is recalling certain 2026-2027 VNR ...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized VOLVO dealer. Bring this bulletin ID (KC-776) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.