Peterbilt 389G: problems, complaints, bulletins
Summary for the Peterbilt 389G across 1 model years: 0 owner complaints and 20 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 |
|---|---|---|---|---|
| 2016 | 0 | 0 | 20 | 0 |
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 6 |
| Equipment | 0 | 0 | 4 |
| Structure | 0 | 0 | 3 |
| Engine | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 2 |
| Vehicle speed control | 0 | 0 | 2 |
| Visibility | 0 | 0 | 2 |
| Engine and cooling | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Powertrain | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
| Wheels | 0 | 0 | 1 |
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting…
- Certain model 389 chassis are experiencing freezing of the A/C evaporator or frosting of the compressor…
- 34-093 Model 389 78-inch Sleeper 12V Power Port Supplier Change
- Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height…
- The service information for Bendix Air Dryer maintenance is being updated to include new procedures
- Fix-As-Fail â Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are…
- Sample Customer Letter - 215-3 Sleeper Heater Core O-Ring Leaking
- Information Only â Windshield washer pumps have a high No Trouble Found rate
- Fix as Fail
- Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
- Information Only
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 2026-11-04.