AI Damage2021 IC BUS Resb: common problems
The maker issued 54 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 54
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 21 |
| Electrical system | 0 | 0 | 13 |
| Equipment | 0 | 0 | 4 |
| Steering | 0 | 0 | 4 |
| Engine | 0 | 0 | 3 |
| Powertrain | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Structure | 0 | 0 | 3 |
| Suspension | 0 | 0 | 3 |
| Seats | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 1 |
| Vehicle speed control | 0 | 0 | 1 |
| Other | 0 | 0 | 6 |
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.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This document provides guidance for assessing the feasibility of implementing a customer-requested change…
This document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. Customer requested changes will be approved in accordance with the…
- This tool is designed to compare Diamond Logic feature data across multiple vehicle configuration files
It allows users to quickly load files either manually or directly from the Diamond Logic Builder Vehicles folder using VIN-based selection. As files are added or removed, the comparison runs automatically with no…
- New CARB Idle Reduction Change Request
- Engine replacements for all International engines will need to follow this procedure
- This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle…
This document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.
- IC Bus Operator's Manuals
- In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of…
In some geographic areas, ambient temperatures reaching below 15°F (-10 °C), including high levels of humidity, an operator may experience engine stalling, low performance, and or poor aftertreatment performance. This…
- This document will guide the user through understanding Prop Shaft Codes and understanding the variations…
This document will guide the user through understanding Prop Shaft Codes and understanding the variations of prop codes. (Metric Prop codes start with the number a 4 and Non metric Prop codes start with a 2.)
- Title
Service Portal iKNow Feedback Case Types Applies To: All
- Title
Driveline Information Center and Troubleshooting Procedures Applies To: All Vehicles
- Title
A/C Refrigerant and Oil Capacities Applies To: All current models
- Title
Fan belt replacement guidelines for frayed edges Applies To: All Models
NHTSA lists 54 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 IC BUS Resb?
There are no owner complaints in the NHTSA data for this year; the data comes from 54 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 IC BUS Resb?
NHTSA lists 54 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 IC BUS Resb 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.