AI DamagePeterbilt 377: problems, complaints, bulletins
Summary for the Peterbilt 377 across 2 model years: 5 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
| Year | Owner complaints | involving a crash | Technical service bulletins (TSB) | YouTube repair videos |
|---|---|---|---|---|
| 2001 | 2 | 0 | 0 | 0 |
| 2000 | 3 | 0 | 0 | 0 |
What fails most often
- 1 Service brakes 40% of all complaints
- 2 Latches, locks, linkages 20% of all complaints
- 3 Steering 20% of all complaints
- 4 Tires 20% of all complaints
- Service brakes: 2 complaints (40% of all).
- Latches, locks, linkages: 1 complaints (20% of all).
- Steering: 1 complaints (20% of all).
- Tires: 1 complaints (20% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 2 | 0 | 0 |
| Latches, locks, linkages | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Tl contact owns a 2001 peterbilt 377 truck. The contact stated that the drag links have prematurely worn out which are the steering links that turn the steering wheel from the left and right. The contact purchased the repair parts and repaired the vehicle; however, the repair didn't correct the failure.
Sonsumer states that the structure of the cab lock door opened itself. Mr
When the brakes are applied the pedal goes to the floor resulting in extended stopping. Dealer replaced brakes pad. Consumer states the problem is reoccurring. Mr
Consumer states that when trying to apply the brakes the brake pedal will go to the floor causing the vehicle to have extended stopping distance. Dealer notified, due to the problem with the brakes, the engine brake only works sometimes. Nlm
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Latches, locks, linkages. Door, hood and tailgate latches, especially near the impact.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Tires. Tire age by DOT code, bulges, wear pattern.
Other models of this make
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 2026-11-05.