2011 Kenworth T660: recalls and complaints

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

All updates to the register

• 24V14500023 Feb 2024Service Brakes, Air / Supply / Reservoir/Tank
• 20V1990006 Apr 2020Service Brakes, Air / Antilock / ABS Warning Light
• 15V45800022 Jul 2015Exterior Lighting / Hazard Flashing Warning Lights
• 15V2710008 May 2015Visibility / Windshield Wiper/Washer / Motor
• 11V38000021 Jul 2011Electrical System / Software
• 11V20300024 Mar 2011Engine and Engine Cooling
• 11V1570007 Mar 2011Service Brakes, Air / Slack Adjusters
• 11V12700023 Feb 2011Fuel System, Other / Storage / Tank Assembly
• 10V65400022 Dec 2010Latches/Locks/Linkages / Hood / Latch
• 10V60100024 Nov 2010Equipment / Other / Labels
• 10V53500027 Oct 2010Service Brakes, Air / Disc / Caliper
• 10V4530001 Oct 2010Engine and Engine Cooling / Exhaust System / Emission Control / Gas Recirculation Valve (Egr Valve)
• 10V45200029 Sep 2010Exterior Lighting

1. 24V145000Received 23 Feb 2024. 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: 12 Aug 2024.

2. 20V199000Received 6 Apr 2020. 460,515 units.

   Service Brakes, Air / Antilock / ABS Warning Light

   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: 26 May 2020.

3. 15V458000Received 22 Jul 2015. 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: 16 Sep 2015.

4. 15V271000Received 8 May 2015. 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: 2 Sep 2015.

5. 11V380000Received 21 Jul 2011. 211 units.

   Electrical System / Software

   Defect, in the NHTSA record

   Paccar is recalling certain model year 2011-2012 kenworth t660, t700, and t800 vehicles manufactured from april 19, 2010, through may 13, 2011, and model year 2008, 2010, and 2011 peterbilt 365, 367, 384, 386, 387, 388 and 587 vehicles manufactured from april 20, 2010, through june 11, 2011, and equipped with paccar mx engines and eaton ultrashift dm or allison automatic transmissions (without auto-neutral). The fast idle control may be activated by the operator while the transmission is in gear.

   Consequence, in the NHTSA record

   If the fast idle control function is engaged with the transmission in gear, the vehicle could unexpectedly accelerate and override the parking brake and , creating a risk of a crash and damage to other vehicles or property and the potential for injury to nearby pedestrians.

   Remedy, in the NHTSA record

   Kenworth and peterbilt dealers will update the engine software for the affected chassis. This service will be performed free of charge. The safety recall began on august 22, 2011. Owners may contact kenworth at 1-425-828-5440 and peterbilt at 1-940-591-4196.

   Report filed by PACCAR INCORPORATED. Manufacturer campaign number E038R. Owner notification date in the NHTSA record: 22 Aug 2011.

6. 11V203000Received 24 Mar 2011. 5,831 units.

   Engine and Engine Cooling

   Defect, in the NHTSA record

   Paccar is recalling certain model year 2007-2011 kenworth c500, t2000, t600, and t660, as well as model year 2009-2011 peterbilt 387 and 388 trucks equipped with caterpillar c15 engine and manufactured from may 11, 2006, through september 17, 2010. Degradation of a combustion tube weld can cause radial heat impingement on the body which may burn through certain bodies used on c15 engines.

   Consequence, in the NHTSA record

   This could result in a fire.

   Remedy, in the NHTSA record

   Caterpillar is handling the owner notification and remedy for this campaign. Please see caterpillar's defect report 11e-006. Caterpillar will replace the single piece combustion tube with a thick wall combustion tube which will not allow the heat to break through. This service will be performed free of charge. Due to a parts supply issue, owners will be notified by the end of april 2011 about the safety defect, and will then be notified again once the free remedy is available, currently estimated to be around late july 2011. Owners may contact caterpillar toll-free at 1-800-447-4986.

   Report filed by PACCAR INCORPORATED. Manufacturer campaign number 11KWB & 0311-A. Owner notification date in the NHTSA record: 4 Aug 2011.

7. 11V157000Received 7 Mar 2011. 280 units.

   Service Brakes, Air / Slack Adjusters

   Defect, in the NHTSA record

   Paccar is recalling certain model year 2011-2012 kenworth t270/370, t440/t470, t800, t660, w900 and c500 vehicles manufactured between october 18, 2010, and january 28, 2011. Certain cast iron slack adjuster housings, which transmit braking force from the brake chamber push rod to the brake cam tube, may include a flow notch in the handle portion of the housing due to an error during the casting process. A flow notch in the handle portion may reduce the effective cross section structure and cause the slack adjuster housing to fracture.

   Consequence, in the NHTSA record

   If the slack adjuster housing were to fracture, the wheel brake to which the slack adjuster housing is attached would no longer function, which could increase vehicle stopping distances, and if mounted on the steer axle, could cause the vehicle to pull to one side during braking, increasing the risk of a crash.

   Remedy, in the NHTSA record

   Dealers will inspect and replace the slack adjuster housing as necessary. This service will be performed free of charge. The safety recall began on march 30, 2011. Owners may contact kenworth at 425-828-5440.

   Report filed by PACCAR INCORPORATED. Manufacturer campaign number 11KWA. Owner notification date in the NHTSA record: 30 Mar 2011.

8. 11V127000Received 23 Feb 2011. 4,664 units.

   Fuel System, Other / Storage / Tank Assembly

   Defect, in the NHTSA record

   Paccar is recalling certain model year 2008-2012 kenworth t2000, t660, t700, t800, and w900, as well as model year 2009-2012 peterbilt 365, 367, 384, 386, 387, 388, 389, and 587 trucks equipped with paccar mx engines. The oil module centrifugal spinner filter cap in the paccar mx engine may become loose, possibly allowing the cap to come off and engine oil to partially discharge from the oil module onto exhaust components.

   Consequence, in the NHTSA record

   The discharge of engine oil onto exhaust components which are hot, such as when the engine is under significant load, may cause a fire.

   Remedy, in the NHTSA record

   Dealers will re-torque the oil module filter cap and install a secondary retention device on the secondary centrifugal spinner filter cap. This service will be performed free of charge. The safety recall is expected to begin during march 2011. Owners may contact kenworth at 1-425-828-5440 and peterbilt at 1-940-591-4196.

   Report filed by PACCAR INCORPORATED. Manufacturer campaign number E026R. Owner notification date in the NHTSA record: 4 Mar 2011.

9. 10V654000Received 22 Dec 2010. 1,510 units.

   Latches/Locks/Linkages / Hood / Latch

   Defect, in the NHTSA record

   Kenworth is recalling certain model year 2011 t660 and t700 tractor trailers manufactured between august 9, 2010, and november 4, 2010. The safety latch feature that keeps the hood of the vehicle from closing after a user opens the hood may fail to operate.

   Consequence, in the NHTSA record

   Failure of the safety latch feature may cause the hood to unexpectedly close while open, increasing the risk of personal injury and/or vehicle damage.

   Remedy, in the NHTSA record

   Dealers will replace the dual magnets with a single magnet on the safety latch. This service will be performed free of charge. The safety recall began on february 28, 2011. Owners may contact kenworth at 1-425-828-5440.

   Report filed by PACCAR INCORPORATED. Manufacturer campaign number 10KWK. Owner notification date in the NHTSA record: 28 Feb 2011.

10. 10V601000Received 24 Nov 2010. 97 units.

    Equipment / Other / Labels

    Defect, in the NHTSA record

    Paccar is recalling certain model year kenworth t660 and t800 vehicles manufactured from september 13, 2010, through november 19, 2010, for failing to comply with the requirements of federal motor vehicle safety standard no. Part 567, "certification." the steer axle gawr and gvwr recorded on the vehicle's door labels may be inaccurate and overstate the actual load capacity of components installed on the vehicle.

    Consequence, in the NHTSA record

    This may lead to an owner overloading the vehicle which can increase the risk of a tire failure and crash.

    Remedy, in the NHTSA record

    Dealers will inspect and replace the door labels free of charge. The safety recall began on december 17, 2010. Owners may contact kenworth at 425-828-5440.

    Report filed by PACCAR INCORPORATED. Manufacturer campaign number 10KWJ. Owner notification date in the NHTSA record: 17 Dec 2010.

11. 10V535000Received 27 Oct 2010. 417 units.

    Service Brakes, Air / Disc / Caliper

    Defect, in the NHTSA record

    Paccar is recalling certain model year kenworth t660, t700, t800 and w900 vehicles manufactured from december 22, 2008, through august 2, 2010, and equipped with ag400l air disc brakes. The air disc brake caliper could be installed on the wrong side of the drive axle potentially causing interference with the suspension bracket and the rear suspension as the outermost brake pads wear and the floating caliper moves inboard.

    Consequence, in the NHTSA record

    As this interference gets larger, this could eventually lead to reduced braking performance, increasing the risk of a crash.

    Remedy, in the NHTSA record

    Dealers will verify the correct orientation of the brake caliper and perform the necessary repair free of charge. The safety recall began on november 24, 2010. Owners may contact kenworth at 425-828-5440.

    Report filed by PACCAR INCORPORATED. Manufacturer campaign number 10KWH. Owner notification date in the NHTSA record: 24 Nov 2010.

12. 10V453000Received 1 Oct 2010. 384 units.

    Engine and Engine Cooling / Exhaust System / Emission Control / Gas Recirculation Valve (Egr Valve)

    Defect, in the NHTSA record

    Paccar is recalling certain model year kenworth and peterbilt vehicles. A manufacturing defect in the seal supplied by a component manufacturer installed on the output shaft of the exhaust gas recirculation (egr) valve actuator may cause eventual delamination of the seal. Delamination of the seal may allow engine oil to leak from the egr valve onto exhaust components.

    Consequence, in the NHTSA record

    The leaking of engine oil onto hot exhaust components, such as when the engine is under significant load, may create the possibility of a fire.

    Remedy, in the NHTSA record

    Dealers will replace the egr valve assembly on the subject vehicles equipped with the paccar mx engine. This service will be performed free of charge. The safety recall began on october 29, 2010. Owners may contact kenworth at 425-828-5440 and peterbilt at 940-591-4196.

    Report filed by PACCAR INCORPORATED. Manufacturer campaign number E008R. Owner notification date in the NHTSA record: 29 Oct 2010.

13. 10V452000Received 29 Sep 2010. 3,040 units.

    Exterior Lighting

    Defect, in the NHTSA record

    Kenworth is recalling certain model year 2011 t660, t800, w900, c500, t440, and t470 vehicles manufactured from april 1, 2009, through august 30, 2010. One of the four harness spade terminal connections to the chassis load center may become completely unseated. A completely unseated connection may result in a power loss to a portion of the vehicle's exterior lighting.

    Consequence, in the NHTSA record

    Power loss of the vehicle's exterior lighting may reduce the visibility of the vehicle to other drivers increasing the risk of a crash with the vehicle.

    Remedy, in the NHTSA record

    Dealers will inspect the harness and re-seating the female connectors on the male spade terminals. This service will be performed free of charge. The safety recall began on october 29, 2010. Owners may contact kenworth at 1-425-828-5440.

    Report filed by PACCAR INCORPORATED. Manufacturer campaign number 10KWG. Owner notification date in the NHTSA record: 29 Oct 2010.

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.

A complaint can name more than one component. Each component that a complaint names is one component mention. This model year has fewer than 50 component mentions, so the table shows the number of mentions only.

Complaints that report a crash

0

Complaints that report a fire

0

Injuries in the complaints

0

Deaths in the complaints

0

Date of the newest complaint

24 Sep 2013

These figures are the entries of the persons who sent the complaints.

Complaint: A report about a possible safety problem that a person sends to NHTSA. This site shows the number of complaints and not their text.

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.

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.

• Kenworth T660: all model years
• Kenworth: 39 model lines

Follow by RSS:Kenworth recallsVehicle recalls

• NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
• NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
• NHTSA page of the 2011 Kenworth T660The recalls, the complaints and the investigations that NHTSA shows for this model year.

How many units are in the recall campaigns for the 2011 Kenworth T660?

595,243 units in 13 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. 13 of them name the 2011 model year.

Which component do the complaints about the 2011 Kenworth T660 name most often?

Service Brakes: 1 of 2 component mentions.

Is an NHTSA investigation of the 2011 Kenworth T660 open?

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