Problems owners report
Complaints filed with NHTSA about the 2014 Peterbilt 337, by the system named in each complaint. One complaint can name several.
- Service brakes1
- Service brakes, air1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
New York safety inspections
At its first New York inspection the 2014 Peterbilt 337 failed the safety check 0.00% of the time — 100% less often than the average 2014 passenger car (2.30%). Median odometer at inspection: 185,625 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Recalls in Canada
5 Transport Canada recalls for the 2014 Peterbilt 337.
| 2020148 7 Apr 2020 | Lights And Instruments Issue: On certain trucks, the warning light for the tractor anti-lock brake system (ABS) may not turn on if the system loses power. If this happens, the drive… |
| 2015211 15 May 2015 | Engine On certain vehicles equipped with Cummins Westport ISL-G engines, excessive engine crankcase pressure could cause the vent tube assembly elbow to detach from t… |
| 2014198 29 May 2014 | Airbag On certain vehicles, a wiring defect could cause the airbag warning lamp to fail to illuminate in the event of a fault with the side curtain airbag system. As a… |
| 2014020 24 Jan 2014 | Seats And Restraints On certain vehicles, the seat belts may not comply with Canada Motor Vehicle Safety Standard 209 - Seat Belt Assemblies. Due to a defect in manufacturing, the s… |
| 2013178 24 May 2013 | Electrical On certain trucks, an internal defect in the ignition switch can cause the starter to engage when the key is partially inserted. This would allow the engine to… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may not illuminate to warn the driver of the loss of ABS. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems," and 136, "Electronic Stability Control System on Heavy Vehicles."
Rush Truck Centers of Texas, LP (Rush), doing business as Custom Vehicle Solutions, is recalling certain modified 2011-2016 Peterbilt 337 trucks manufactured March 26, 2010, to March 9, 2015, modified 2013-2015 Peterbilt 348 trucks manufactured May 14, 2012, to March 25, 2014, and modified 2014 Peterbilt 382 trucks manufactured on November 1, 2013. The affected trucks, converted from conventional day cabs to crew cabs, may be equipped with seat belt anchorage assemblies that may come unanchored when under load. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 210, "Seat Belt Assembly Anchorages."
PACCAR Incorporated (PACCAR) is recalling certain model year 2010-2016 Kenworth T440, T800, and W900 trucks manufactured August 31, 2009, to April 20, 2015, and 2008-2015 Peterbilt 320, 337, 348, 365, 382, and 384 trucks manufactured July 27, 2007, to April 28, 2015, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
PACCAR Incorporated (PACCAR) is recalling certain model year 2010-2015 Peterbilt 579, 388, 384, 367, 365, 348, and 337 trucks manufactured October 30, 2009, through May 21, 2014. In the affected vehicles, if power is interrupted to the seat electronic control unit (ECU), such as when the fuse for that circuit blows, the side air bag would be disabled but there will not be a warning lamp indicator to notify the operator of the malfunction.
PACCAR Incorporated (PACCAR) is recalling certain model year 2014 Kenworth T660, T680, T700,T800, T880, W900, T440, T470, T370, T270, T170, C500, and C550 chassis manufactured between August 7, 2013, and October 31, 2013, and Peterbilt 320, 325, 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, and 587 chassis manufactured between August 7, 2013, and November 3, 2013, and equipped with IMMI-brand L9 seat belt buckles. When the button is pressed to release the seat belt, the latch plate can become partially engaged with the buckle, making the seat belt difficult to unlatch. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 209, "Seat Belt Assemblies."
PACCAR is recalling certain model year 2014 Kenworth T170, T270, T370, T470, T660, T680, T800, T880, and W900 trucks manufactured May 6, 2013, through May 17, 2013; and model year 2014 Peterbilt 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, 389K, 567, 579 and 587 trucks manufactured May 1, 2013 through May 17, 2013. An internal defect in the ignition switch causes the starter to engage when a key is partially inserted, before the key is turned.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Peterbilt told its dealers about the 2014 Peterbilt 337: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11010926 | Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied. |
| 10219235 | The service information for Bendix Air Dryer maintenance is being updated to include new procedures. |
| 10188550 | Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter. |
| 10186168 | SmartNav 2.0 Hardware retrofit for quality validation and vehicle validation units. |
| 10177021 | Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information. |
| 10177019 | Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (SOC) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the exhaust stack to rotate and contact the cab or sleeper. |
| 10176033 | Information only: Hendrickson Softek front axle maintenance intervals and requirements. |
| 10174764 | Safety Recall Bulletin: Updated with permanent repair path for phase 1 vehicles. The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power. NHTSA recall number is 18V368. Non compliance to FMVSS and CMVSS 121 and 136. Resolution is to Reflash software. |
| 10174762 | Safety Recall Interim Bulletin: The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power. NHTSA recall number is 20V199 Non compliance to FMVSS and CMVSS 121 and 136. Resolution is to Reflash software. |
| 10173212 | Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles. |
| 10173205 | Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. |
| 10172036 | Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead to sensor corrosion. |
| 10169787 | Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures. |
| 10168703 | Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. |
| 10165583 | Information Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP). |
| 10164375 | Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination. |
| 10162392 | Information Only - Quick Reference Guide for Electric harness damage repairs. |
| 10159674 | Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion. |
| 10154733 | Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version. |
| 10143649 | Information - Recommended Practices for Updating ESA Software |
| 10128643 | Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps. |
| 10056314 | PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN TRUCKS, AT TIME OF ASSEMBLY, MAY NOT HAVE A PROPERLY SEATED UPPER REVERSE IDLER FEED TUBE (OIL SUPPLY LINE), RESULTING IN BEARINGS HAVING REDUCED OIL PRESSURE. *PE |
| 10056025 | PETERBILT: THE MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES DUE TO AN ENGINE CONTROL UNIT (ECU) SOFTWARE ISSUE, REAR NOX SENSOR, OPERATING CORRECTLY. *PE |
NHTSA manufacturer communications (public domain)
NHTSA investigations
Intermittent Loss of Power Steering Assist
NHTSA Office of Defects Investigation