Service bulletins for the 2021 Freightliner Coronado
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
30 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| CXA 2_25_Turbo Oil Drain | 2025-03-04. Other. ENGINE. CX Advocate for turbo oil drain cracking |
|---|---|
| CXA 1_16_Turbo Oil Drain | 2025-01-29. Other. ENGINE. CX Advocate for turbo oil drain cracking |
| CXA 1_16_GATS2.4 | 2025-01-29. Other. ENGINE. CX Advocate for GATS2.4 being expanding to DD15 |
| CXA 1_16_DD13 Altitude | 2025-01-29. Other. ENGINE. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault. |
| VSWP Customer Letter | 2024-06-22. Other. ENGINE. Customer letter regarding variable speed water pump. |
| SB49-042 | 2022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for DEF Connector Reinforcement Caps. |
| SB4934 | 2021-05-10. Service bulletin. ENGINE AND ENGINE COOLING. DEF Tank Coolant Valve O-Ring Kit |
| TechTalk7679 | 2020-10-01. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available. |
| TS1033014 | 2020-07-31. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.