2027 Peterbilt 548: common problems
The maker issued 4 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 4
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- 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.
- Certain Model 548 chassis equipped with tri-drive brake piping are non-compliant with Federal MotorVehicle…
Certain Model 548 chassis equipped with tri-drive brake piping are non-compliant with Federal MotorVehicle Safety Standard (FMVSS) 121 / Canadian Motor Vehicle Safety Standard (CMVSS) 121 rearservice brake application…
- "The PKC Group power distribution center (PDC) in certain vehicles may be contaminated with oil, which…
"The PKC Group power distribution center (PDC) in certain vehicles may be contaminated with oil, which could result in a loss of power to the engine, antilock brake system, exterior lighting, windshield wipers, and/or…
- "Kenworth
Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the…
- An improved transmission bracket is now available for replacement on certain chassis equipped with a…
An improved transmission bracket is now available for replacement on certain chassis equipped with a PACCAR TX-12 transmission, featuring a more durable design for enhanced long-term performance.
Other years of this model
Questions and answers
What are the most common problems with the 2027 Peterbilt 548?
There are no owner complaints in the NHTSA data for this year; the data comes from 4 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2027 Peterbilt 548?
NHTSA lists 4 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2027 Peterbilt 548 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2027 models
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.