2014 Kenworth T660
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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These records cover every 2014 Kenworth T660. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
11 recalls name the 2014 Kenworth T660. Newest first.
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air…
Risk and remedy
Risk
Insufficient air volume can reduce braking performance and increase the risk of a crash.
Remedy
Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 24KWD.
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…
Risk and remedy
Risk
If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Remedy
PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 20pbc AND 20KWB.
PACCAR Incorporated (PACCAR) is recalling certain model year 2011-2016 Kenworth T440, T470, T660, T680, and T880 trucks manufactured January 14, 2010, to May 22, 2015, and equipped with HID Headlamps and the option for Daytime Running Lamps (DRL). The DRLs are required to deactivate when the hazard warning lights are activated, however, the DRLs on these…
Risk and remedy
Risk
If the hazard warning lamps are overridden by the DRL, oncoming vehicles may fail to be warned, increasing the risk of a crash.
Remedy
Kenworth will notify owners, and dealers will update the cab controller software, free of charge. The recall began on September 167, 2015. Owners may contact Kenworth customer service at 1-425-828-5000. Kenworth's number for this recall is 15KWL.
PACCAR Incorporated (PACCAR) is recalling certain model year 2014 and 2015 Kenworth T660, T680, and T800 trucks manufactured January 29, 2013, to April 2, 2014, and 2013 Peterbilt 587 trucks manufactured on August 8, 2012. The affected trucks are built with a driveshaft that may not transmit power to the wheels due to weld failure from corrosion.
Risk and remedy
Risk
If the weld fails causing a loss of power to the rear wheels, the vehicle operator may be unable to move the vehicle, or may experience deceleration if the vehicle is in motion, increasing the risk of a vehicle crash.
Remedy
PACCAR will notify owners, and dealers will replace the defective driveshafts, free of charge. The recall began on July 15, 2015. Owners may contact Kenworth customer service at 1-425-828-5000, or Peterbilt customer service at 1-940-591-4000. PACCAR's number for this recall is 15KWJ and 515-H.
PACCAR Incorporated (PACCAR) is recalling certain model year 2014-2016 Kenworth T660, T680, T880 trucks manufactured February 18, 2013, to April 10, 2015, and 2011-2016 Peterbilt 386, 389, 567, 579, and 587 trucks manufactured December 13, 2010, to April 20, 2015. The affected trucks, equipped with PACCAR MX-13 engines and Delco-Remy 40SI alternators, have…
Risk and remedy
Risk
If the alternator cable rubs through its insulation, an electrical short may occur, increasing the risk of a fire.
Remedy
PACCAR will notify owners, and dealers will reroute the alternator charge cable away from the metal freon line, free of charge. PACCAR issued an interim notification to owners on July 10, 2015. The recall began on September 16, 2015. Owners may contact Kenworth customer service at 1-425-828-5000 or Peterbilt customer service at 1-940-591-4000. PACCAR's numbers for this recall are 15KWE and 515-F.
PACCAR Incorporated (PACCAR) is recalling certain model year 2011-2016 Kenworth T270, T370, T440, T470, C500, C540, C550, T660, T800, W900, and 963 trucks manufactured November 1, 2010, to April 6, 2015. In the affected trucks, water may leak into the wiper motor.
Risk and remedy
Risk
As water leaks in, the wiper may cease to function on the 'intermittent' setting, reducing the driver's visibility and increasing the risk of a crash. Additionally, the water may cause corrosion which, over time, may result in an electrical short, increasing the risk of a fire.
Remedy
PACCAR is still developing and testing a remedy. The recall is expected to begin in July 2015. An interim letter was sent to owners on July 2, 2015. The recall began on September 2, 1015. Owners may contact Kenworth customer service at 1-425-828-5000. PACCAR's number for this recall is 15KWF.
PACCAR Inc, is recalling certain model year 2014-2015 Kenworth T440, T660, T800, and W900 tractor trailers manufactured January 23, 2013, through February 4, 2014, and certain model year 2014-2015 Peterbilt 320, 365, 382, 384 tractor trailers manufactured January 21, 2013, through February 5, 2014, and equipped with certain Cummins Westport Model ISL G and…
Risk and remedy
Risk
The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.
Remedy
PACCAR will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on April 12, 2014. Customers may contact PACCAR at 1-425-468-7400. Paccar's recall numbers associated with this campaign are 14KWG (Kenworth), and 214-C (Peterbilt).
PACCAR Incorporated (PACCAR)is recalling certain model year 2013-2014 T660, and T680 vehicles manufactured from December 4, 2012, through September 17, 2013 and configured as a dead axle tandem with air disc brakes and spring brake delete options. The affected vehicles have the parking brake incorrectly placed on the non-driven rear axle.
Risk and remedy
Risk
If the parking brake is on the non-driven axle the vehicle could roll away when the parking brakes are set, resulting in an increased risk of a crash.
Remedy
PACCAR will notify owners, and dealers will move the parking brake components to the forward wheel axle, free of charge. The recall began on April 9, 2014. Owners may contact PACCAR at 1-425-468-7400. Paccar's number for this recall is 14KWE.
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…
Risk and remedy
Risk
If the latch plate remains partially engaged after the button is pressed, egress from the vehicle could be hindered which would increase the risk of injury in the event of an emergency.
Remedy
PACCAR will notify owners, and dealers will inspect and replace the seat belt buckles, as necessary, free of charge. The recall began on March 31, 2014. Owners may contact PACCAR at 1-425-468-7400. Kenworth's number for this campaign is 14KWC. Peterbilt's number for this campaign is 114-B.
PACCAR Incorporated (Paccar) is recalling certain model year 2014 Kenworth T170, T270, T370, T440, T470, T660, T680, T700, T800, T880, C500 and W900 trucks manufactured July 1, 2013 through September 17, 2013. In the affected vehicles, the plastic housing of the Stop/Tail/Turn (STT) lamp can shrink and allow the light bulb to fall out of the mounted…
Risk and remedy
Risk
If the stop/tail/turn light is not illuminated, the driver's intentions would not be communicated, which increases the risk of a crash.
Remedy
Kenworth will notify owners, and dealers will replace the defective STT lamps with new lamps. The recall began on February 4, 2014. Customers may contact Paccar at 1-425-468-7400. Kenworth's number for this recall is 13KWM.
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…
Risk and remedy
Risk
Unintended engine startup could cause injury to a person working in the engine compartment. Vehicles with standard transmissions may experience unexpected movement, which may result in personal injury or a crash.
Remedy
PACCAR will notify owners, and dealers will replace affected ignition switches, free of charge. The recall began on June 14, 2013. Owners may contact Kenworth at 1-425-828-5000 or Peterbilt at 1-940-591-4000. Kenworth's recall campaign number is 13KWF. Peterbilt's recall campaign number is 0513-E.
Owner complaints
1 complaints
What owners report most
Latest complaints
- Electronic stability control (esc) · Service brakes, air
The contact owns a 2014 Kenworth T660. The contact received a recall notification for NHTSA Campaign Number: 20V199000 (Electronic Stability Control, Service Brakes, Air). The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was…
The contact owns a 2014 Kenworth T660. The contact received a recall notification for NHTSA Campaign Number: 20V199000 (Electronic Stability Control, Service Brakes, Air). The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The part was not available for repair. The contact had not experienced a failure. Parts distribution disconnect.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 10254164Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available.
- 10218895Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
- 10188550Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
- 10186161Eaton ultrashift plus excessive engine over-speed lamp on.
- 10185190Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
- 10177021Information 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.
- 10173212Information 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.
- 10173205Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
- 10169787Information 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.
- 10168703Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
- 10165583Information Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
- 10128646Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
- 10128643Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
- 10092232Fix-as-fail - engine over-speed lamp could come on after a downshift with the eaton ultrashift plus transmission. This does not affect the function of the vehicle.
- 10057501Kenworth chassis: information regarding misapplied ghg door labels may not have been installed at all, on some trucks, or possibly applied to incorrect truck. See document search button for owners letter.
- 10056024Kenworth: see document search button for owner letter. A max governed cc speed, on some trucks, was programmed incorrectly and limits maximum default speed to 63 mph.
- 10056022Kenworth: see document search button for owner letter. There IS an incorrect family name on greenhouse gas compliance label and needs to be replaced. Model T370, T440, T660, T800.
Every Kenworth T660 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.