2010 KENWORTH T660 — Problems, Recalls & Safety Data
N/A
Safety Rating
2
Owner Complaints
10
Recalls
7
Service Bulletins
0
Investigations
Overview of the 2010 KENWORTH T660
The 2010 KENWORTH T660 has received a total of 2 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 11 recall campaigns affecting this vehicle, covering issues with SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK, ELECTRONIC STABILITY CONTROL (ESC), SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. 7 technical service bulletins have been issued by PACCAR Incorporated for this model year. The most commonly reported problem area is the Service Brakes Hydraulic (1 complaint).
Recalls for the 2010 KENWORTH T660
NHTSA has recorded 11 recalls for the 2010 KENWORTH T660, potentially affecting up to 951,384 vehicles.
Recall 24V145000 — SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
| 936 vehicles affected
Defect: 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...
Consequence: 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...
View full details →Recall 20V199000 — ELECTRONIC STABILITY CONTROL (ESC)
| 460,515 vehicles affected
Defect: 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...
Consequence: 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...
View full details →Recall 20V199000 — SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
| 460,515 vehicles affected
Defect: 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...
Consequence: 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...
View full details →Recall 11V203000 — ENGINE AND ENGINE COOLING
| 5,831 vehicles affected
Defect: 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...
Consequence: THIS COULD RESULT IN A FIRE.
Remedy: 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....
View full details →Recall 11V127000 — FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
| 4,664 vehicles affected
Defect: 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...
Consequence: 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: 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...
View full details →Recall 10V535000 — SERVICE BRAKES, AIR:DISC:CALIPER
| 417 vehicles affected
Defect: 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...
Consequence: AS THIS INTERFERENCE GETS LARGER, THIS COULD EVENTUALLY LEAD TO REDUCED BRAKING PERFORMANCE, INCREASING THE RISK OF A CRASH.
Remedy: 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.
View full details →Recall 10V308000 — STEERING:COLUMN
| 9,697 vehicles affected
Defect: 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...
Consequence: 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: 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...
View full details →Recall 10V266000 — LATCHES/LOCKS/LINKAGES:HOOD:LATCH
| 4,796 vehicles affected
Defect: 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...
Consequence: 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: 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...
View full details →Recall 10V185000 — SUSPENSION:REAR:AXLE:SPINDLE
| 21 vehicles affected
Defect: 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...
Consequence: A WHEEL END FIRE MAY OCCUR, INCREASING THE RISK OF A CRASH.
Remedy: 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....
View full details →Recall 09V490000 — STEERING
| 3,078 vehicles affected
Defect: 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.
Consequence: 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: 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.
View full details →Recall 09V415000 — POWER TRAIN:AXLE ASSEMBLY
| 914 vehicles affected
Defect: 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,...
Consequence: 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: 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.
View full details →Owner Complaints for the 2010 KENWORTH T660
2 complaints have been filed with NHTSA for the 2010 KENWORTH T660. Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Service Brakes Hydraulic | 1 | 1 | 0 | 1 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
Most Recent Complaints
WHILE GOING DOWN LONG MOUNTAIN GRADES, IN HOT WEATHER, THE STEERING LOCKS UP. I WAS TOLD THAT IT NEEDED A OIL COOLER. I PAID $1280.00 FOR AN OIL COOLER. TRW DOES NOT THINK THEY HAVE ANY RESPONSIBILITY TO WARRANTY A ONE YEAR OLD STEERING GEAR. EVEN THOUGH THEY KNOW THAT IT IS A MALFUNCTIONING RELIEF VALVE. *TR
TL* THE CONTACT OWNS A 2010 KENWORTH T660 TRUCK. WHILE DRIVING APPROXIMATELY 10 MPH, THE CONTACT ATTEMPTED TO DEPRESS THE BRAKE PEDAL WHEN HE NOTICED THAT THE VEHICLE WAS HESITANT TO STOP. THE CONTACT WAS ABLE TO PULL THE EMERGENCY BRAKE IN ORDER TO SLOW THE VEHICLE SPEED BUT THE CONTACT CRASHED INTO THE VEHICLE POSITIONED IN FRONT OF HIM. THE CONTACT NOTICED THERE WAS A COVER OVER THE STEERING COLUMN WHICH INTERFERED WHEN HE ATTEMPTING TO BRAKE. THE CONTACT STATED THAT THE BRAKE PEDAL WAS EXTREMELY NARROW AND MADE IT DIFFICULT TO ENGAGE. A POLICE REPORT WAS FILED. THE CONTACT WAS NOT INJURED BUT THE DRIVER OF THE SECOND VEHICLE STATED SHE RECENTLY HAD SURGERY ON HER SHOULDER AND WAS WORRIED ABOUT FURTHER INJURIES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT AN INSPECTOR WOULD INSPECT THE VEHICLE FOR FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 145,000. UPDATED 06/24/11 *BF THE CONSUMER MARKED THE INJURY BOX. UPDATED 11/16/11
Safety Rating for the 2010 KENWORTH T660
NHTSA has not yet tested the 2010 KENWORTH T660 in its New Car Assessment Program.
Technical Service Bulletins for the 2010 KENWORTH T660
PACCAR Incorporated has issued 7 technical service bulletins (TSBs) for the 2010 KENWORTH T660. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
TIB-44-024 — ENGINE
KENWORTH: REGARDING UPDATE INFORMATION FOR ENGINE BRAKE AND THROTTLE PEDAL POSITION RETURN RANGE, WHICH WAS TOO NARROW TO ENGAGE AND ENGINE BRAKE WAS NOT ENGAGING. *PE
TIB-34-041 — ENGINE AND ENGINE COOLING:ENGINE
KENWORTH: INFORMATION FOR AFTERTREATMENT, PMCI OR RELATED ISSUES, CAUSED BY CORROSION FOR WATER IN FUEL (WIF) SENSOR, AT ENGINE HARNESS J175 CONNECTOR. *PE
TIB-E-046 — FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE ORIGINAL STYLE OIL FILTER CAP SYSTEM IS BEING REPLACED BY AN IMPROVED OIL FILTER CAP LOCK SYSTEM. *PE
TIB-E037 — STEERING:HYDRAULIC POWER ASSIST:PUMP
KENWORTH: POWER STEERING PUMP SPOOL VALVE DOES NOT MEET QUALITY STANDARDS. THERE MAY BE A LACK OF STEERING ASSIST OR HARD STEERING AT IDLE. *RM
TIB-03-042 — FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
PACCAR: THE FUEL SENSORS MIGHT NOT HAVE A SEALANT PLUG WHICH COULD LEAD TO WATER INTRUSION, CORROSSION, AND FALSE READINGS. *RM
TIB-E-019 — ENGINE AND ENGINE COOLING:ENGINE:DIESEL
PACCAR: SOFTWARE UPDATES HAVE RESULTED IN CHECK ENGINE LIGHTS COMING ON. *RM
TIB-26-019 — POWER TRAIN:CLUTCH ASSEMBLY:BELL HOUSING
PACCAR: THE TRANSMISSION AND CLUTCH MOUTNING BOLTS ARE DEFECTIVE AND MAY CRACK. THERE MAY BE NOISE, VIBRATION, OR DIFFICULTY SHIFTING. *RM
NHTSA Investigations for the 2010 KENWORTH T660
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the KENWORTH T660
- 2005 KENWORTH T660 — 0 complaints
- 2006 KENWORTH T660 — 0 complaints
- 2007 KENWORTH T660 — 0 complaints
- 2008 KENWORTH T660 — 3 complaints
- 2009 KENWORTH T660 — 0 complaints
- 2010 KENWORTH T660 (current)
- 2011 KENWORTH T660 — 2 complaints
- 2012 KENWORTH T660 — 1 complaint
- 2013 KENWORTH T660 — 0 complaints
- 2014 KENWORTH T660 — 2 complaints
- 2015 KENWORTH T660 — 0 complaints
Other KENWORTH Models
- KENWORTH T680 — 106 total complaints
- KENWORTH T2000 — 56 total complaints
- KENWORTH T800 — 49 total complaints
- KENWORTH W900 — 41 total complaints
- KENWORTH KENWORTH — 25 total complaints
- KENWORTH T600 — 21 total complaints
- KENWORTH T880 — 12 total complaints
- KENWORTH CONVENTIONAL — 11 total complaints