AI Damage2021 Isuzu NRR: common problems
The maker issued 8 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 8
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 6 |
| Engine and cooling | 0 | 0 | 2 |
| Electrical system | 0 | 0 | 1 |
| Exterior lighting | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin provides information with regards to the Isuzu Commercial Vehicle (CV) Service Policies and…
This bulletin provides information with regards to the Isuzu Commercial Vehicle (CV) Service Policies and Procedures Manual (SPPM). The Isuzu CV SPPM (sections 2.15 and 2.16) provides detailed procedures related to…
- This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program")
The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio and component repairs not covered under warranty. Contact…
- We have received reports of the front turn signal lenses cracking on Isuzu vehicles
These lenses are cracking from the effects of being washed with alkaline detergents. Alkaline detergents are typically used in industrial settings and are reactive with the paint, metals, and other materials used to…
- Isuzu Commercial Truck of America, Inc
(ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts…
- The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic…
The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number…
- The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various…
The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins. If a Threebond product is unavailable, we recommend that you utilize the…
- In an effort for continuous improvement, Isuzu has a need to obtain Mimamori ECU
Other years of this model
Questions and answers
What are the most common problems with the 2021 Isuzu NRR?
There are no owner complaints in the NHTSA data for this year; the data comes from 8 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Isuzu NRR?
NHTSA lists 8 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 Isuzu NRR 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.