2012 KENWORTH T660 — Problems, Recalls & Safety Data
N/A
Safety Rating
1
Owner Complaint
9
Recalls
1
Service Bulletin
0
Investigations
Overview of the 2012 KENWORTH T660
The 2012 KENWORTH T660 has received a total of 1 safety complaint 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. 1 technical service bulletin have been issued by PACCAR Incorporated for this model year. The most commonly reported problem area is the Engine (1 complaint).
Recalls for the 2012 KENWORTH T660
NHTSA has recorded 11 recalls for the 2012 KENWORTH T660, potentially affecting up to 1,073,034 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 15V458000 — EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS
| 12,551 vehicles affected
Defect: 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...
Consequence: 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.
View full details →Recall 15V458000 — EXTERIOR LIGHTING:HEADLIGHTS
| 12,551 vehicles affected
Defect: 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...
Consequence: 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.
View full details →Recall 15V271000 — VISIBILITY:WINDSHIELD WIPER/WASHER:MOTOR
| 104,807 vehicles affected
Defect: 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: 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...
View full details →Recall 12V026000 — SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
| 15,932 vehicles affected
Defect: PACCAR IS RECALLING CERTAIN MODEL YEAR 2012-2013 KENWORTH T170, T270, T370, T440, T470, T660, T700, T800, W900, AND PETERBILT 320, 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, AND 587 VEHICLES, MANUFACTURED FROM JANUARY 31, 2011, THROUGH JANUARY 19, 2012, AND EQUIPPED WITH BENDIX ATR-6 ANTILOCK TRACTION RELAY VALVES. IN EXTREMELY COLD CONDITIONS, THESE BENDIX RELAY VALVES MAY...
Consequence: UNEXPECTED CONTINUOUS BRAKE APPLICATION CAN CAUSE THE BRAKES TO OVERHEAT AND LEAD TO A FIRE. UNEXPECTED CONTINUOUS BRAKE APPLICATION CAN CAUSE THE DRIVER TO LOSE CONTROL OF THE VEHICLE, INCREASING THE RISK OF A CRASH. ALSO, THE BRAKES MAY BE APPLIED WITHOUT ILLUMINATING THE BRAKE LIGHTS, FAILING TO GIVE PROPER WARNING TO OTHER DRIVERS.
Remedy: PACCAR WILL NOTIFY OWNERS, AND PROVIDE A TEMPORARY REPAIR UNTIL BENDIX DEVELOPS A PERMANENT REMEDY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON FEBRUARY 10, 2012. OWNER MAY CONTACT KENWORTH AT 1-425-828-5440 AND PETERBILT AT...
View full details →Recall 11V380000 — ELECTRICAL SYSTEM:SOFTWARE
| 211 vehicles affected
Defect: 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...
Consequence: 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: 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.
View full details →Recall 11V334000 — LATCHES/LOCKS/LINKAGES:HOOD:LATCH
| 72 vehicles affected
Defect: PACCAR IS RECALLING CERTAIN MODEL YEAR 2012 KENWORTH T660 TRACTORS MANUFACTURED BETWEEN APRIL 18, 2011, AND MAY 20, 2011, EQUIPPED WITH A SAFETY LATCH ATTACHED TO THE HOOD STRUT WHICH IS DESIGNED TO AUTOMATICALLY ENGAGE WHEN THE HOOD IS OPENED. IF THE HOOD STRUT WERE TO SEPARATE, THE SAFETY LATCH MAY NOT ENGAGE.
Consequence: A NON-OPERATIONAL SAFETY LATCH MAY NOT BE DETECTED BY AN OPERATOR AND THE HOOD MAY UNEXPECTEDLY CLOSE, INCREASING THE RISK OF PERSONAL INJURY.
Remedy: KENWORTH DEALERS WILL INSPECT THE HOOD STRUT FOR THE SPECIFIC DEFECTIVE LOT CODE AND IF THE STRUT IS WITHIN THE LOT CODE, THE STRUT WILL BE REPLACED. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON...
View full details →Recall 11V157000 — SERVICE BRAKES, AIR:SLACK ADJUSTERS
| 280 vehicles affected
Defect: 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...
Consequence: 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: 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.
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 →Owner Complaints for the 2012 KENWORTH T660
1 complaint has been filed with NHTSA for the 2012 KENWORTH T660. Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 1 | 0 | 0 | 0 | 0 |
Most Recent Complaints
CUMMINS ENGINE HAS NOT COME FORWARD AND ANNOUNCE ON THEIR IS 15 LITERS THAT THERE ARE HAVING RINGS AND SLEEVES ISSUES. WHICH CAUSE THE ENGINE TO BURN OIL FAILING OUR DIESEL PARTICULAR FILTER WHICH COULD CAUSE A FIRE. THE EXIST DUE A DESIGNEE FAULT IN THE PISTONS OF THE ENGINES. RINGS ARE PACKING WITH SOOT AND PUSHING RINGS OPEN AND ALLOWING OIL TO BURN IN THE ENGINE . THE EXTRA THEN CAUSE DPF COG FAST MAKING MORE REGN. IF THE DPF CAN NOT CLEAR IT SELF IT IS A CONSTANT RENG. THIS COULD LEAVE TO A FIRE. *TR
Safety Rating for the 2012 KENWORTH T660
NHTSA has not yet tested the 2012 KENWORTH T660 in its New Car Assessment Program.
Technical Service Bulletins for the 2012 KENWORTH T660
PACCAR Incorporated has issued 1 technical service bulletin (TSBs) for the 2012 KENWORTH T660. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
TIB-E-052 — ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE CORRECTION AND FAN CLUTCH LININGS REPLACEMENT MAY HAVE BEEN DAMAGED DUE TO OE PROGRAMMING. *PE
NHTSA Investigations for the 2012 KENWORTH T660
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the KENWORTH T660
- 2007 KENWORTH T660 — 0 complaints
- 2008 KENWORTH T660 — 3 complaints
- 2009 KENWORTH T660 — 0 complaints
- 2010 KENWORTH T660 — 2 complaints
- 2011 KENWORTH T660 — 2 complaints
- 2012 KENWORTH T660 (current)
- 2013 KENWORTH T660 — 0 complaints
- 2014 KENWORTH T660 — 2 complaints
- 2015 KENWORTH T660 — 0 complaints
- 2016 KENWORTH T660 — 0 complaints
- 2017 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