AI Damage2026 Peterbilt 548: common problems
The maker issued 17 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 17
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Exterior lighting | 0 | 0 | 5 |
| Electrical system | 0 | 0 | 4 |
| Powertrain | 0 | 0 | 4 |
| Engine | 0 | 0 | 2 |
| Service brakes | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
| Other | 0 | 0 | 2 |
Comparison
What to check before buying
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "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…
- Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
- 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.
- "KW & PB
New software is available for download. The DAVIE4 cache must be cleared before attempting to reprogram a chassis that is experiencing problems to ensure the latest version of software is installed. Follow all steps in…
- The repair procedure has been updated to include diagnostic steps
- KW
A Transmission Control Module (TCM) software update is now available for certain T280, T380, T480, T680, T880, and W990 chassis with PACCAR TX-12 and TX-18 transmissions, TCM software version R5.5 or later and an AT5…
- Troubleshooting procedures for 2.1m cab power windows are now available
- Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values
- Cummins TSB 210203 has been updated to remove the PACCAR suction side fuel filter part number from Table 1…
Cummins TSB 210203 has been updated to remove the PACCAR suction side fuel filter part number from Table 1 as the filter is no longer compatible.
- Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control…
Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013 / Q21-1157-002-002 / Q21-1157-004-004 /…
- A new Recommended Repair has been added
It must be used if safety recall 25PACF is performed prior to or at the same time as this repair since the 25PACF remedy also satisfies this safety recall.
- Parts and repair procedures are now available
Certain chassis may have a rear suspension tracking rod that interferes with the left rear brake valve components during full suspension travel. This interference could cause a loss of the rear service brake or ABS…
NHTSA lists 17 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2026 Peterbilt 548?
There are no owner complaints in the NHTSA data for this year; the data comes from 17 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2026 Peterbilt 548?
NHTSA lists 17 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 2026 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 2026 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.