AI Damage2021 Freightliner 114SD: common problems
The maker issued 153 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 153
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 38 |
| Equipment | 0 | 0 | 35 |
| Engine | 0 | 0 | 28 |
| Electrical system | 0 | 0 | 26 |
| Powertrain | 0 | 0 | 22 |
| Steering | 0 | 0 | 10 |
| Service brakes | 0 | 0 | 8 |
| Suspension | 0 | 0 | 6 |
| Structure | 0 | 0 | 5 |
| Exterior lighting | 0 | 0 | 4 |
| Seats | 0 | 0 | 3 |
| Fuel/propulsion system | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Seat belts | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- 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.
- Field Service campaign for 114SD Airliner 69K Crossmembers
- Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
- Fleet Communications for solenoid issues
- CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
- Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement
- Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- CX Advocate for Aftermarket Transmission Support
- Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- Fleet Communications for NFD Lower Oil Plug Location - SP Axles
- Fleet Communications for Heater Core Plugging
- CX Advocate for Experiencing Excessive Purging from Air Dryer
- CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
NHTSA lists 153 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 Freightliner 114SD?
There are no owner complaints in the NHTSA data for this year; the data comes from 153 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Freightliner 114SD?
NHTSA lists 153 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 Freightliner 114SD 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.