Vehicle recall 77V174000 · October 12, 1977
Mack CF, DM and 7 more models
The involved vehicles do not conform to federal motor vehicle safety standard no. 209, "seatbelt assemblies".
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- The involved vehicles do not conform to federal motor vehicle safety standard no. 209, "seatbelt assemblies". Although the seatbelts in question performed marginally with respect to the 5000 lb. Load requirement, additional testing confirmed that the anchor could fail, allowing either the anchor to slip over the hold-down nut or the anchor to separate into two pieces.
- Remedy
- Dealer will inspect and, if necessary, replace seat belt assemblies without charge to owner.
- Notes
- Vehicle description: trucks.system: interior; seat belt anchorage assembly.consequences of defect: in the event of an accident, these seat belts may notadequately restrain passengers and serious injuries may result.
Recall details
- NHTSA campaign
- 77V174000
- Reported to NHTSA
- October 12, 1977
- Filed by
- MACK TRUCKS, INCORPORATED
- Owner notification
- August 23, 1978
- Vehicles potentially affected
- 6,591
- Initiated by
- the manufacturer
- Components
- Seat belts › Front › Anchorage
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Mack been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.