2010 Kenworth T660 recalls and problems

The 2010 Kenworth T660 has 10 recalls and 2 owner complaints on file with NHTSA; the most reported problem area is service brakes.

How the 2010 compares

High

Fewest complaintsMost complaints

High complaint count among 5 T660 model years — 2nd most.

10recalls

2complaints

1crashes

0fires

1injuries

160,225median miles

Owner complaints filed with NHTSA, not verified and not adjusted for sales. Ranking compares this model's own years only.

Does your car have an open recall?
Recalls apply to specific vehicles. Only a VIN lookup on NHTSA's official site shows whether yours is affected and still unrepaired.

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10 recalls

Service Brakes

Feb 23, 2024 · NHTSA campaign 24V145000 · 936 vehicles

Problem: 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."

Risk: Insufficient air volume can reduce braking performance and increase the risk of a crash.

Remedy & notes

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.

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Electronic Stability Control

Apr 6, 2020 · NHTSA campaign 20V199000 · 460,515 vehicles

Problem: 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."

Risk: If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.

Remedy & notes

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.

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Engine

Mar 24, 2011 · NHTSA campaign 11V203000 · 5,831 vehicles

Problem: 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.

Original NHTSA wording

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.

Risk: This could result in a fire.

Original NHTSA wording

THIS COULD RESULT IN A FIRE.

Remedy & notes

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.

Kenworth safety recall no. 11KWB & Peterbilt safety recall no. 0311-A.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Fuel System

Feb 23, 2011 · NHTSA campaign 11V127000 · 4,664 vehicles

Problem: 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.

Original NHTSA wording

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.

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

Original NHTSA wording

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 & notes

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.

Owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Service Brakes

Oct 27, 2010 · NHTSA campaign 10V535000 · 417 vehicles

Problem: 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.

Original NHTSA wording

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.

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

Original NHTSA wording

AS THIS INTERFERENCE GETS LARGER, THIS COULD EVENTUALLY LEAD TO REDUCED BRAKING PERFORMANCE, INCREASING THE RISK OF A CRASH.

Remedy & notes

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.

Kenworth safety recall no. 10KWH.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Steering

Jul 2, 2010 · NHTSA campaign 10V308000 · 9,697 vehicles

Problem: Paccar is recalling certain model year 2008-2010 trucks equipped with trw steering shafts. The circumferential weld around the steering shaft tube that welds the splined tube to the non-splined tube May be mislocated. Mislocation of the circumferential weld May allow the splined tube and non-splined tube to rotate relative to one another during a low speed, high torque turn, possibly resulting in a separation of the two tubes.

Original NHTSA wording

PACCAR IS RECALLING CERTAIN MODEL YEAR 2008-2010 TRUCKS EQUIPPED WITH TRW STEERING SHAFTS. THE CIRCUMFERENTIAL WELD AROUND THE STEERING SHAFT TUBE THAT WELDS THE SPLINED TUBE TO THE NON-SPLINED TUBE MAY BE MISLOCATED. MISLOCATION OF THE CIRCUMFERENTIAL WELD MAY ALLOW THE SPLINED TUBE AND NON-SPLINED TUBE TO ROTATE RELATIVE TO ONE ANOTHER DURING A LOW SPEED, HIGH TORQUE TURN, POSSIBLY RESULTING IN A SEPARATION OF THE TWO TUBES.

Risk: A separation of the splined and non-splined tubes would cause a loss of steering control and increase the risk of a vehicle crash.

Original NHTSA wording

A SEPARATION OF THE SPLINED AND NON-SPLINED TUBES WOULD CAUSE A LOSS OF STEERING CONTROL AND INCREASE THE RISK OF A VEHICLE CRASH.

Remedy & notes

Dealers will inspect the steering shaft using a weld placement gauge provided by trw. Any steering shaft found to have been welded improperly will be replaced free of charge. The safety recall began on July 30, 2010. Owners May contact Kenworth at 425-828-5440 and Peterbilt at 940-591-4196.

Kenworth's recall campaign number is 10KW-F & Peterbilt recall no. 0610-D. Owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Latches/locks/linkages

Jun 16, 2010 · NHTSA campaign 10V266000 · 4,796 vehicles

Problem: Kenworth is recalling certain model year 2009 through 2010 T660 tractor trailors manufactured from July 1, 2008 through July 31, 2009. The retaining pins securing the hood strut lock tube to the hood strut assembly May become loose and fall out allowing the lock tube to rotate on the strut assembly. In its normal operation the safety latch feature is automatically set and it prevents the hood from closing. With the hood closed and the retaining pins missing, the lock tube May rotate relative to the good strut resulting in a non-operational safety latch feature when the hood is opened.

Original NHTSA wording

KENWORTH IS RECALLING CERTAIN MODEL YEAR 2009 THROUGH 2010 T660 TRACTOR TRAILORS MANUFACTURED FROM JULY 1, 2008 THROUGH JULY 31, 2009. THE RETAINING PINS SECURING THE HOOD STRUT LOCK TUBE TO THE HOOD STRUT ASSEMBLY MAY BECOME LOOSE AND FALL OUT ALLOWING THE LOCK TUBE TO ROTATE ON THE STRUT ASSEMBLY. IN ITS NORMAL OPERATION THE SAFETY LATCH FEATURE IS AUTOMATICALLY SET AND IT PREVENTS THE HOOD FROM CLOSING. WITH THE HOOD CLOSED AND THE RETAINING PINS MISSING, THE LOCK TUBE MAY ROTATE RELATIVE TO THE GOOD STRUT RESULTING IN A NON-OPERATIONAL SAFETY LATCH FEATURE WHEN THE HOOD IS OPENED.

Risk: A non-operational safety latch feature May not be detected by an operator increasing the risk of personal injury and/or vehicle damage should the hood unexpectedly close.

Original NHTSA wording

A NON-OPERATIONAL SAFETY LATCH FEATURE MAY NOT BE DETECTED BY AN OPERATOR INCREASING THE RISK OF PERSONAL INJURY AND/OR VEHICLE DAMAGE SHOULD THE HOOD UNEXPECTEDLY CLOSE.

Remedy & notes

Dealers will replace the pivot disc and lock tube retaining pins with a revised pivot disc and cap screws. This service will be performed free of charge. The safety recall began on July 15, 2010. Owners May contact Kenworth at 1-425-828-5440.

Kenworth safety recall no. 10KWE.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Suspension

May 4, 2010 · NHTSA campaign 10V185000 · 21 vehicles

Problem: Kenworth is recalling certain model year 2010 T2000, T660, T800 and W900 vehicles manufactured between July 30, 2009 and September 18, 2009. The rear axle outer end hub May have not been primed with oil properly during the rear axle installation process. Potential lack of oil May cause the outer end bearing to heat up and/or seize, possibly resulting in the overheating of the wheel end.

Original NHTSA wording

KENWORTH IS RECALLING CERTAIN MODEL YEAR 2010 T2000, T660, T800 AND W900 VEHICLES MANUFACTURED BETWEEN JULY 30, 2009 AND SEPTEMBER 18, 2009. THE REAR AXLE OUTER END HUB MAY HAVE NOT BEEN PRIMED WITH OIL PROPERLY DURING THE REAR AXLE INSTALLATION PROCESS. POTENTIAL LACK OF OIL MAY CAUSE THE OUTER END BEARING TO HEAT UP AND/OR SEIZE, POSSIBLY RESULTING IN THE OVERHEATING OF THE WHEEL END.

Risk: A wheel end fire May occur, increasing the risk of a crash.

Original NHTSA wording

A WHEEL END FIRE MAY OCCUR, INCREASING THE RISK OF A CRASH.

Remedy & notes

Dealers will replace the bearings, seals and will add oil to the outer end hub as well as inspect races and axle housing for damage and replacing as necessary free of charge. The safety recall began on May 24, 2010. Owners May contact Kenworth at 425-828-5440.

Kenworth recall no. 10KWB.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Steering

Dec 23, 2009 · NHTSA campaign 09V490000 · 3,078 vehicles

Problem: Kenworth is recalling model year 2010 T2000, T800, T660 and W900S trucks manufactured between July 1 and October 23, 2009. The fasteners attaching the steering gear to the front drive bracket May have received insufficient torque during the installation process resulting in less than required clamp load.

Original NHTSA wording

KENWORTH IS RECALLING MODEL YEAR 2010 T2000, T800, T660 AND W900S TRUCKS MANUFACTURED BETWEEN JULY 1 AND OCTOBER 23, 2009. THE FASTENERS ATTACHING THE STEERING GEAR TO THE FRONT DRIVE BRACKET MAY HAVE RECEIVED INSUFFICIENT TORQUE DURING THE INSTALLATION PROCESS RESULTING IN LESS THAN REQUIRED CLAMP LOAD.

Risk: The insufficient clamp load May allow the fastener(s) to become loose and fall away from the vehicle resulting in road debris. If multiple fasteners were to become loose, the vehicle steering May wander, which could result in a crash.

Original NHTSA wording

THE INSUFFICIENT CLAMP LOAD MAY ALLOW THE FASTENER(S) TO BECOME LOOSE AND FALL AWAY FROM THE VEHICLE RESULTING IN ROAD DEBRIS. IF MULTIPLE FASTENERS WERE TO BECOME LOOSE, THE VEHICLE STEERING MAY WANDER, WHICH COULD RESULT IN A CRASH.

Remedy & notes

Dealers will inspect and re-torque the steering gear mounting bolts free of charge. The safety recall is expected to begin during January 2010. Owners May contact Kenworth at 1-425-828-5440.

Kenworth recall no. 09KWB.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Power Train

Oct 21, 2009 · NHTSA campaign 09V415000 · 914 vehicles

Problem: Kenworth is recalling model year 2009 through 2010 T2000, T800, T660 and W900 trucks manufactured between November 12, 2008 and September 30, 2009. The axle u-bolts attaching the axle to the suspension leaf spring on certain AG400L rear suspensions May have received insufficient fastener torque during the installation process. The insufficient torque May allow the axle u-bolt to become loose, which May cause vibration in the rear suspension.

Original NHTSA wording

KENWORTH IS RECALLING MODEL YEAR 2009 THROUGH 2010 T2000, T800, T660 AND W900 TRUCKS MANUFACTURED BETWEEN NOVEMBER 12, 2008 AND SEPTEMBER 30, 2009. THE AXLE U-BOLTS ATTACHING THE AXLE TO THE SUSPENSION LEAF SPRING ON CERTAIN AG400L REAR SUSPENSIONS MAY HAVE RECEIVED INSUFFICIENT FASTENER TORQUE DURING THE INSTALLATION PROCESS. THE INSUFFICIENT TORQUE MAY ALLOW THE AXLE U-BOLT TO BECOME LOOSE, WHICH MAY CAUSE VIBRATION IN THE REAR SUSPENSION.

Risk: If multiple fasteners were to become loose, the rear axle May shift relative to the rear suspension leaf spring, which can result in loss of control and a crash.

Original NHTSA wording

IF MULTIPLE FASTENERS WERE TO BECOME LOOSE, THE REAR AXLE MAY SHIFT RELATIVE TO THE REAR SUSPENSION LEAF SPRING, WHICH CAN RESULT IN LOSS OF CONTROL AND A CRASH.

Remedy & notes

Dealers will inspect the axle u-bolts for visible defects, including bent and/or smashed threads and re-torque the axle u-bolts to factory specifications. The recall began on November 4, 2009. Owners May contact Kenworth at 425-828-5440.

Kenworth recall no. 09KWA.owners May also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to <a href=http://www.safercar.gov>http://www.safercar.gov</a> .

Recall text as published by NHTSA and the manufacturer.

What owners complain about

Service Brakes1

Steering1

Owner complaints filed with NHTSA; one complaint can name several areas. Not verified by NHTSA.

2010 vs. other Kenworth T660 years

Owner complaints by model year; the darker bar is the 2010. Click a bar to switch year.

Questions

Does the 2010 Kenworth T660 have recalls?

Yes — NHTSA lists 10 recall campaigns covering the 2010 Kenworth T660, the latest from Feb 23, 2024 (service brakes). A recall applies to specific vehicles: enter your VIN at nhtsa.gov/recalls to see whether yours is affected and still open.

What are the most common problems with the 2010 Kenworth T660?

Owner complaints filed with NHTSA most often mention service brakes (1), steering (1). Complaints are consumer reports and are not verified by NHTSA.