AI Damage2021 Freightliner Coronado: common problems
The maker issued 30 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 30
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 6 |
| Engine | 0 | 0 | 5 |
| Service brakes | 0 | 0 | 5 |
| Engine and cooling | 0 | 0 | 4 |
| Steering | 0 | 0 | 3 |
| Suspension | 0 | 0 | 3 |
| Electrical system | 0 | 0 | 2 |
| Fuel system | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Wheels | 0 | 0 | 2 |
| Structure | 0 | 0 | 1 |
| Tires | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CX Advocate for turbo oil drain cracking
- CX Advocate for GATS2.4 being expanding to DD15
- CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault
- Customer letter regarding variable speed water pump
- Important Campaign Information letter communicating that SF660 Field Service Campaign is Replaced by FL967
- Revised Field Service Campaign for Drag Link Tapered Joint
- Field Service Campaign for Drag Link Tapered Joint
- Freightliner Service Bulletin for DEF Connector Reinforcement Caps
- ConMet Front Hub to Rotor Fasteners
On certain vehicles, the front rotor nuts may not be torqued to manufacturer specification. Loose components could cause damage to the ABS tone rings, the ABS sensors, and the anchor plate mounting fasteners.
- Customer Advisory Letter for 4-Hook Chain Hanger Replacement
- SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
- Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform
NHTSA lists 30 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 Coronado?
There are no owner complaints in the NHTSA data for this year; the data comes from 30 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Freightliner Coronado?
NHTSA lists 30 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 Coronado 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.