The worst 2023 Peterbilt 337 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 2
Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/module
- What is wrong
- 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.
- 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.
- Remedy
- 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.
Recall number 24V915000 · Recall details
Steering
- What is wrong
- 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.
- Risk
- A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
- Remedy
- 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.
Recall number 22V547000 · Recall details
Technical service bulletins for the 2023 Peterbilt 337 12
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- The verbiage in the Introduction section has been updated.
- Sheppard Recall Order Process Update
- Safety Recall Updated software and procedures are now available
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting...
- Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to...
- CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022-2023...
- RFID (Radio Frequency ID) tags are being added and used to track Non-Test Ready (NTR) trucks to...
- Peterbilt SmartLINQ subscriptions can be renewed online via PACCAR Solutions RemoteDiagnostics web portal.
- This is a follow-up bulletin to shortage bulletin S017
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Questions about the 2023 Peterbilt 337
Is the 2023 Peterbilt 337 reliable?
Owners have filed 0 complaints about the 2023 Peterbilt 337.
What is the most common problem with the 2023 Peterbilt 337?
There are not enough complaints to tell.
How many recalls does the 2023 Peterbilt 337 have?
2 recalls, covering service brakes, hydraulic and steering.
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