Total Complaints
2 filings
KENWORTH T660 · model year
2010 KENWORTH T660
2 NHTSA complaints, 1 crash report, and 10 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2010KENWORTHT660 carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 1 injury, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2010 T660 is service brakes, hydraulic with 1 filings, followed by steering (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 10 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 3 investigation files overlapping the 2010 T660. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
2
Complaints
1
Crashes
0
Fires
1
Injuries
0
Deaths
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SERVICE BRAKES, HYDRAULIC | 1 |
| STEERING | 1 |
Recalls (10)
10V53500027/10/2010
SERVICE BRAKES, AIR:DISC:CALIPER
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 INTERFERENC
11V20300024/03/2011
ENGINE AND ENGINE COOLING
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
09V49000023/12/2009
STEERING
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
24V14500023/02/2024
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
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 ve
11V12700023/02/2011
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
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
09V41500021/10/2009
POWER TRAIN:AXLE ASSEMBLY
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 DUR
10V26600016/06/2010
LATCHES/LOCKS/LINKAGES:HOOD:LATCH
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
20V19900006/04/2020
ELECTRONIC STABILITY CONTROL (ESC)
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-lo
10V18500004/05/2010
SUSPENSION:REAR:AXLE:SPINDLE
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 E
10V30800002/07/2010
STEERING:COLUMN
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-SPLIN
Recent Complaints
20110922STEERING
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
Mileage: 160,225
20110510CrashSERVICE BRAKES, HYDRAULIC
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
Mileage: 145,000
Compare 2010KENWORTHT660 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2010 KENWORTH T660 have?▼
The 2010 KENWORTH T660 has 2 NHTSA complaints, 1 crashes, 0 fires, 1 injuries, and 0 deaths reported.
Are there any recalls for the 2010 KENWORTH T660?▼
Yes, the 2010 KENWORTH T660 has 10 recall(s). The most common affected component is SERVICE BRAKES, AIR:DISC:CALIPER. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2010 KENWORTH T660?▼
The most-complained component for the 2010 KENWORTH T660 is SERVICE BRAKES, HYDRAULIC with 1 complaints. Other frequently reported areas include STEERING.
Is the 2010 KENWORTH T660 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.