Recall Register

2015 Kenworth T660: recalls and complaints

NHTSA lists 11 recall campaigns for the 2015 Kenworth T660. The newest campaign is 24V145000. NHTSA received the report on 23 Feb 2024. The NHTSA record gives the component Service Brakes, Air / Supply / Reservoir/Tank. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 24V145000, in the NHTSA record

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.
NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.

NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

11 campaigns, newest first. 671,087 units in total.

  • 24V145000Service Brakes, Air / Supply / Reservoir/Tank
  • 20V199000Electronic Stability Control (ESC)
  • 18V368000Electronic Stability Control (ESC)
  • 15V458000Exterior Lighting / Hazard Flashing Warning Lights
  • 15V310000Power Train / Driveline / Driveshaft
  • 15V270000Electrical System / Alternator/Generator/Regulator
  • 15V271000Visibility / Windshield Wiper/Washer / Motor
  • 15V051000Service Brakes, Air / Disc / Caliper
  • 14V810000Parking Brake / Conventional / Air
  • 14V722000Electrical System
  • 14V086000Engine and Engine Cooling / Engine

  1. 24V145000Received . 936 units.

    Service Brakes, Air / Supply / Reservoir/Tank

    Defect, in the NHTSA record
    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 for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
    Consequence, in the NHTSA record
    Insufficient air volume can reduce braking performance and increase the risk of a crash.
    Remedy, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 24KWD. Owner notification date in the NHTSA record: .

  2. 20V199000Received . 460,515 units.

    Electronic Stability Control (ESC)

    Defect, in the NHTSA record
    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."
    Consequence, in the NHTSA record
    If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
    Remedy, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 20pbc AND 20KWB. Owner notification date in the NHTSA record: .

  3. 18V368000Received . 85,626 units.

    Electronic Stability Control (ESC)

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2017-2018 Peterbilt 567 and 579 trucks and 2015-2018 Kenworth T660, T680, T800, T880 and W900 trucks. 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."
    Consequence, in the NHTSA record
    If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
    Remedy, in the NHTSA record
    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 July 30, 2018. Owners may contact Peterbilt customer service at 1-918-259-3258 or Kenworth customer service at 1-425-828-5000.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 18KWD;18PBB. Owner notification date in the NHTSA record: .

  4. 15V458000Received . 12,551 units.

    Exterior Lighting / Hazard Flashing Warning Lights

    Defect, in the NHTSA record
    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 vehicles override the hazard flashing functionality after the brake pedal is pushed for more than two seconds. Normal hazard flashing functionality returns once the service brake is released. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, Reflective Devices, and Associated Equipment."
    Consequence, in the NHTSA record
    If the hazard warning lamps are overridden by the DRL, oncoming vehicles may fail to be warned, increasing the risk of a crash.
    Remedy, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 15KWL. Owner notification date in the NHTSA record: .

  5. 15V310000Received . 30 units.

    Power Train / Driveline / Driveshaft

    Defect, in the NHTSA record
    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.
    Consequence, in the NHTSA record
    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, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 15KWJ and 515-H. Owner notification date in the NHTSA record: .

  6. 15V270000Received . 1,494 units.

    Electrical System / Alternator/Generator/Regulator

    Defect, in the NHTSA record
    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 alternator charge cables that may chafe against a formed metal freon discharge line.
    Consequence, in the NHTSA record
    If the alternator cable rubs through its insulation, an electrical short may occur, increasing the risk of a fire.
    Remedy, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 15KWE and 515-F. Owner notification date in the NHTSA record: .

  7. 15V271000Received . 104,807 units.

    Visibility / Windshield Wiper/Washer / Motor

    Defect, in the NHTSA record
    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.
    Consequence, in the NHTSA record
    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, in the NHTSA record
    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.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 15KWF. Owner notification date in the NHTSA record: .

  8. 15V051000Received . 106 units.

    Service Brakes, Air / Disc / Caliper

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain model year 2015 Peterbilt 210, 220, 320, and Kenworth K270, K370, T660, T800, T880 trucks manufactured July 21, 2014, to September 16, 2014. The brake caliper bolts may not be properly torqued.
    Consequence, in the NHTSA record
    As a result, the brake caliper bolts may loosen, reducing the effectiveness of the brakes and increasing the risk of a crash.
    Remedy, in the NHTSA record
    PACCAR will notify owners, and dealers will inspect, and tighten or replace any loose caliper bolts, as necessary, free of charge. The recall began on March 27, 2015. Owners may contact Peterbilt customer service 1-940-591-4000, or Kenworth customer service at 1-425-828-5000. PACCAR's number for this recall is 15KWA (Kenworth) and 115B (Peterbilt).

    Report filed by PACCAR Incorporated. Manufacturer campaign number 15KWA and 115B. Owner notification date in the NHTSA record: .

  9. 14V810000Received . 1,623 units.

    Parking Brake / Conventional / Air

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain model year 2015 Peterbilt 367, 389, 567, 579, and 587 trucks manufactured from May 23, 2014, to February 13, 2015, and 2015 Kenworth T270, T370, T440, T470, T660, T680, T800, T880, and W900 trucks manufactured from May 23, 2014, to February 13, 2015, equipped with certain air brake actuators. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.
    Consequence, in the NHTSA record
    Brake drag may result in a wheel end fire.
    Remedy, in the NHTSA record
    Kenworth and Peterbilt will notify owners, and dealers will inspect and replace the brake chamber, as necessary, free of charge. An interim notice was mailed to owners March 3, 2015. The recall began on May 14, 2015. Owners may contact PACCAR customer service at 1-425-828-5000 (Kenworth), or 1-940-591-4000 (Peterbilt). PACCAR's number for this recall is 14KWP (Kenworth), and 1214L (Peterbilt).

    Report filed by PACCAR Incorporated. Manufacturer campaign number 14KWP & 1214L (PB). Owner notification date in the NHTSA record: .

  10. 14V722000Received . 1,380 units.

    Electrical System

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain model year 2015 Kenworth T660, T800, W900, T400, and C500 heavy trucks manufactured September 19, 2014, to October 30, 2014. The affected vehicles may have been produced with an undersized wire gauge for the trailer stop lamp circuit in the instrument panel harness.
    Consequence, in the NHTSA record
    If the smaller wire gauge may overheat increasing the risk of a vehicle fire.
    Remedy, in the NHTSA record
    PACCAR will notify owners, and dealers will replace the defective wire with a properly sized wire, free of charge. The recall began on December 19, 2014. Owners may contact PACCAR customer service at 1-425-828-5000 (Kenworth).

    Report filed by PACCAR Incorporated. Owner notification date in the NHTSA record: .

  11. 14V086000Received . 2,019 units.

    Engine and Engine Cooling / Engine

    Defect, in the NHTSA record
    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 ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.
    Consequence, in the NHTSA record
    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, in the NHTSA record
    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).

    Report filed by PACCAR Incorporated. Manufacturer campaign number 14KWG/214-C. Owner notification date in the NHTSA record: .

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

  1. 20042
  2. 20054
  3. 20064
  4. 20078
  5. 200814
  6. 200917
  7. 201010
  8. 201113
  9. 20129
  10. 20136
  11. 201411
  12. 201511
  13. 201610
  14. 20176
  15. 20186
  16. 20195
  17. 20201

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

Official channels

Cite this page

Recall Register. 2015 Kenworth T660: recalls and complaints. https://recallregister.com/vehicle/kenworth/t660/2015/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .

Sources

Source
NHTSA Office of Defects Investigation
Licence
US government work, public domain
Recall file through
29 Sep 2026
Complaint file through
29 Mar 2018
First complaint in the file
1 Jan 1995
Manufacturer in the recall file
PACCAR Incorporated

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2015 Kenworth T660?
671,087 units in 11 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Kenworth T660 have for all model years?
NHTSA lists 56 recall campaigns for the Kenworth T660, model years 2004 to 2020. 11 of them name the 2015 model year.
Is an NHTSA investigation of the 2015 Kenworth T660 open?
The NHTSA investigation file has no investigation that names this model year.