Def Head Sensor problem or something related to Def. warnings come up say my vehicle is low on def when it is completely full. After 2 warnings I brought it in to a Freightliner repair center for an over $500.00 diagnosis and found it to be intermittent and have no answers but to proceed possibly until it could derate and go into limp mode (very slow crawl) while in the mountains on interstate highways causing unbelievable stress and safety issues. We've heard about this for years, why hasn't the gov't or EPA done anything to get the manufacturers to recall and remedy this? We should all be ashamed. We are an elderly retired couple who worked hard and save our money to travel our beautiful country and visit sickly siblings and have to deal with the idea we could be stranded for days, weeks or months. Do something now please!
2018 Berkshire BE43C-450
Routine
Owners filed 1 complaints about this vehicle with federal regulators, most often about the fuel/propulsion system. No safety recall has been issued.
What fails
| Component | Reports | Crashes | Fires | Injuries | |
|---|---|---|---|---|---|
| Fuel/Propulsion System | 1 | 0 | 0 | 0 |
What owners reported
Newest filingsFuel/Propulsion System
Filed Jul 18, 2025FL
1 of 1 complaints, reproduced as filed.
Reading this record
No unusual pattern of severe incidents in the complaint record.
Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.
Most recent recall on file: none. Source: NHTSA Office of Defects Investigation.