- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.
- The risk
- Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.
- The fix
- Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.
Vehicle safety record
2023 Peterbilt 337 Problems, complaints & recalls
No owner complaints about the 2023 Peterbilt 337 have been filed with NHTSA. It is covered by 2 recalls, the latest in December 2024 for the control unit / module.
NHTSA data checked
CAbout as many problems as a typical 337 year, for its age
- Complaints
- 0
- Recalls
- 2
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2023 Peterbilt 337 recalls 2
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T170, T270, T280, T370, T380, T440, T470, T480, T680, T800, T880, W900, W990, C500, and 2022-2023 Peterbilt 325, 330, 337, 348, 365, 367, 389, 520, 536, 537, 548, 567, and 579 vehicles. The steering gears may have been assembled incorrectly, which can cause the gears to fracture.
- The risk
- A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
- The fix
- Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed September 26, 2022. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 22PBE and 22KWE.
What owners say
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No complaints about the 2023 Peterbilt 337 yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Peterbilt 337: every year compared
All 337 years2023 Peterbilt 337 vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 2023 Peterbilt 337 | 0 | 2 | C | |
| 2023 Peterbilt 579 | 4 | 11 | F | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 2023 Peterbilt 337
Does the 2023 Peterbilt 337 have any recalls?
Yes - NHTSA lists 2 recalls for the 2023 Peterbilt 337: control unit / module (December 2024); steering (July 2022). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 2023 Peterbilt 337 had?
None have been filed with NHTSA so far.
Is the 2023 Peterbilt 337 a reliable vehicle?
Its Safety Index is 50 out of 100 (grade C: about as many problems as a typical Peterbilt 337 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Peterbilt 337 years have the most complaints?
2016 (2), 2014 (1). See every Peterbilt 337 year compared.
What should I do if my 2023 Peterbilt 337 has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data