2020 Fccc S2C: common problems
The maker issued 18 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 18
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 6 |
| Engine and cooling | 0 | 0 | 5 |
| Equipment | 0 | 0 | 4 |
| Electrical system | 0 | 0 | 2 |
| Lane departure | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Suspension | 0 | 0 | 2 |
| Structure | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- 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.
- Lane departure. Windshield camera: calibration after windshield replacement.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Service Solution for 10 Gallon DEF Header Service Replacement Additional Parts (298)
- Service Solution for Low Coolant Warning Buzzer
- Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair…
- CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test…
CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
- Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
- My Communications for SSI DEF Header Warranty Policy Extension for B6 7 Engines Model Years 2017-2021
- Extended Warranty Policy for certain Cummins B6.7 engines with SSI DEF headers for EPA and CARB Emissions…
- Important Campaign Information letter for FL974 - Revised Bulletin & Population
- Revised Emissions Recall
Cummins DEF Sensor Shortage. REVISION: Some vehicles formerly in Group F have been moved to Group G and have been assigned a new part number as specified in Table 1. An SRT for 'Calibration Code Only: Update or…
- Emissions Recall
Cummins DEF Sensor Shortage
- Service Solution for False DEF Fault Codes on chassis with Cummins engines
Symptoms are various active and inactive fault codes for DEF Quality or DEF level. The issue could be caused by the coolant hoses swapped at the bulkhead fittings, thru the frame rail causing the coolant flow inside…
- Open recall and Field service Campaigns report send out to Dealers, General Managers, Service managers and…
NHTSA lists 18 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 2020 Fccc S2C?
There are no owner complaints in the NHTSA data for this year; the data comes from 18 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2020 Fccc S2C?
NHTSA lists 18 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 2020 Fccc S2C 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 2020 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.