AI Damage2021 Hino Conventional Models: common problems
The maker issued 26 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 26
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 9 |
| Fuel system | 0 | 0 | 7 |
| Engine and cooling | 0 | 0 | 3 |
| Equipment | 0 | 0 | 3 |
| Electronic stability control | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Lane departure | 0 | 0 | 1 |
| Visibility | 0 | 0 | 1 |
| Other | 0 | 0 | 9 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- SB-26-007 – J08 SCR INDUCEMENT STRATEGY UPDATE– AAYU0D Hino is updating the SCR inducement strategy on…
SB-26-007 – J08 SCR INDUCEMENT STRATEGY UPDATE– AAYU0D Hino is updating the SCR inducement strategy on certain 2018–2021MY conventional trucks, aligning it with updated regulatory agency guidance by relaxing the torque…
- TT-26-002 Post Campaign AB5R0x or AB5S0x Supplement Manuals
After completing emissions campaign AB5R0x or AB5S0x, future diagnosis might be required. The purpose of this TechTip is to assist with locating supplement service manuals for post emissions campaign trucks that have…
- 2011 – Current model year Hino Conventional and 2013 – 2020 model year Hino COE trucks equipped with…
2011 – Current model year Hino Conventional and 2013 – 2020 model year Hino COE trucks equipped with reprogrammable control modules supported by the Hino Repro Server When reprograming a control module that is…
- DO NOT REPROGRAM ECU or DCU FOR SUBJECT VEHICLES UNLESS RECALL AB5S0 or AB5R0 IS BEING PERFORMED Starting…
DO NOT REPROGRAM ECU or DCU FOR SUBJECT VEHICLES UNLESS RECALL AB5S0 or AB5R0 IS BEING PERFORMED Starting November 12, 2025, the Hino DX3 program will be updated to include new software versions for both the Engine…
- AB5R0* CAMPAIGN KIT CONTENTS
- To improve the Emission Control System and On-Board Diagnostic (OBD) System, Hino will perform the…
To improve the Emission Control System and On-Board Diagnostic (OBD) System, Hino will perform the modifications below: •Re-programming software for Engine Control Unit (ECU) and Dosing Control Unit (DCU) •Replacing…
- Beginning the week of November 3, 2025, both HinoNet and Dealer Connect will be updated to reflect the…
Beginning the week of November 3, 2025, both HinoNet and Dealer Connect will be updated to reflect the Emissions Recall for eligible vehicles. During this period, recall work instructions will be published on HinoNet…
- STOP SALE NOTICE Hino Trucks has received approval to perform, and must now execute, an emissions recall…
STOP SALE NOTICE Hino Trucks has received approval to perform, and must now execute, an emissions recall under the terms of a Consent Decree with the Federal Government and the State of California. In order to ensure…
- This article will provide dealership technicians with information on how to open a tech assist case and…
This article will provide dealership technicians with information on how to open a tech assist case and discuss what is required when opening a Tech Assist Case.
- After connecting to a truck using DX3, it may be necessary to review or create a DX Diagnostic Report for…
- The purpose of this procedure is to provide instructions in how to properly record Nox Sensors using DX3
- CONVENTIONAL DIESEL PARTICULATE FILTER (DPF) â AASW0
NHTSA lists 26 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Hino Conventional Models?
There are no owner complaints in the NHTSA data for this year; the data comes from 26 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Hino Conventional Models?
NHTSA lists 26 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Hino Conventional Models from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.