2021 Fccc S2: common problems
The maker issued 13 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 13
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 4 |
| Engine | 0 | 0 | 3 |
| Engine and cooling | 0 | 0 | 3 |
| Electrical system | 0 | 0 | 1 |
| Powertrain | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Visibility | 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.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Service Solution for A22-82459-000 Wiper Motor Wiring Connector Pinned Wrong (305)
- Technical Service Bulletin for Repair Guidelines for Coolant Leaks
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- 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.
- 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…
- FCCC Service Bulletin for DEF Connector Reinforcement Caps
Some customers experience separation of the diesel exhaust fluid (DEF) lines from the connection ports in extreme cold temperatures. To prevent this, a process was developed to secure the lines with wire ties. A new…
- Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to…
Superseding Letter to an Important Campaign Information Letter to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel…
- Warranty Information Letter for Body Builder/Truck Equipment Manufacturer Demonstration Program
- FCCC Service Bulletin for Axle Flange Gasket Replaced with O-Ring
Daimler Trucks North America has released a new axle shaft to hub rubber O-ring (part number 11-30728-000) as a replacement for the paper gasket (part number 11-14418-000). The new O-ring will provide better sealing…
- Freightliner Custom Chassis Service Bulletin for When troubleshooting powernet issues, use the BCT-460DTNA…
Freightliner Custom Chassis Service Bulletin for When troubleshooting powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter is the only Daimler-approved tool for…
- Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to…
Revised letter is to announce a reimbursement available to dealers for travel to a customer's location to perform a recall or field service campaign. Potential travel reimbursement applies to DTNA truck dealers and…
NHTSA lists 13 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 Fccc S2?
There are no owner complaints in the NHTSA data for this year; the data comes from 13 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Fccc S2?
NHTSA lists 13 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 Fccc S2 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.