Problems owners report
Complaints filed with NHTSA about the 2009 Kenworth T800, by the system named in each complaint. One complaint can name several.
- Unknown or other1
- Electrical system1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 2009 Kenworth T800 failed the safety check 0.88% of the time — 65% less often than the average 2009 passenger car (2.52%). Median odometer at inspection: 240,620 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Recalls in Canada
17 Transport Canada recalls for the 2009 Kenworth T800.
| 2020551 12 Nov 2020 | Structure Issue: On certain trucks, the welds that attach the trailer hitch may crack due to improper welding. As a result, the hitch could detach from the truck while … |
| 2020148 7 Apr 2020 | Lights And Instruments Issue: On certain trucks, the warning light for the tractor anti-lock brake system (ABS) may not turn on if the system loses power. If this happens, the drive… |
| 2011130 24 Mar 2011 | Engine On certain trucks equipped with a Caterpillar C15 diesel engine, the Diesel Particulate Filter (DPF) combustion tube may fail. This could result in a vehicle f… |
| 2011087 25 Feb 2011 | Engine On certain vehicles equipped with a PACCAR MX engine, the oil module centrifugal spinner filter cap may become loose, possibly allowing the cap to come off and … |
| 2010372 28 Oct 2010 | Brakes On certain vehicles equipped with the AG400L suspension and air disc brakes, a caliper could be installed on the wrong side of the drive axle. This could cause… |
| 2010216 30 Jun 2010 | Steering On certain trucks, the weld around the steering shaft tube, which joins the splined tube to the non-splined intermediate tube, may be mislocated. An improperly… |
| 2009314 29 Oct 2009 | Brakes Certain vehicles may suffer cracking of various brake assembly components (i.e. brake cam tube mounting flanges, brake air chamber bracket, brake air chamber, b… |
| 2009305 22 Oct 2009 | Suspension On certain trucks, the rear axle u-bolts may have received insufficient tightening torque during vehicle assembly. This could allow the u-bolts to loosen over … |
| 2009256 8 Sept 2009 | Emissions The emergency vehicle applications that are subject of this recall are designed with a dash-mounted switch that enables the vehicle operator to inhibit the afte… |
| 2009210 13 Jul 2009 | Steering On certain vehicles, an incorrect weld on the steering shaft tube assembly may allow the splined tube and the non-splined tube to rotate relative to one another… |
| 2009185 18 Jun 2009 | Brakes On certain vehicles, the brake spider mounting fasteners attaching the brake spider to the front steer axle flange may have received insufficient torque during … |
| 2009145 20 May 2009 | Brakes On certain vehicles, the caliper mounting fasteners attaching the air disc brake caliper assembly to the torque plate may have received insufficient tightening … |
| 2008358 1 Oct 2008 | Suspension Certain vehicle configuration which includes an AG400 rear suspension, long stroke brake chambers, and wide base tires may develop an increase in lateral and ve… |
| 2008348 24 Sept 2008 | Fuel System On certain trucks equipped with a Caterpillar C9 diesel engine, the fuel pump outlet check plug may crack and cause fuel to spray and leak from the fuel pump wh… |
| 2008349 24 Sept 2008 | Other On certain trucks, the inadequate stiffness of the Diesel Particulate Filter (DPF) bracket could result in the separation of the DPF from the chassis, which co… |
| 2008248 11 Jul 2008 | Suspension On certain trucks, the rear axle u-bolts may have received insufficient tightening torque during vehicle assembly. This could allow the u-bolts to loosen over … |
| 2008091 19 Mar 2008 | Brakes Certain vehicles may have been assembled with an incorrectly manufactured Bendix MV-3 dash control valve. If the double check valve becomes lodged, in the even… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
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."
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."
PACCAR is recalling certain model year 2007-2014 Kenworth T800 and W900 trucks manufactured March 22, 2006, through July 15, 2013 and equipped with Primaax tridem rear suspensions and a pusher and/or tag axle. The affected trucks have brake chambers that take longer to apply or release the brakes than the required time limit. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."
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.
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.
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.
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.
PACCAR IS RECALLING MODEL YEAR 2008-2010 KENWORTH T300, T270, AND T370, MODEL YEAR 2009-2010 T800 AND PETERBILT MODEL YEAR 2008-2010 335, 340, AND 367 VEHICLES BUILT ON CUMMINS' DIESEL ENGINE. THE VEHICLES MAY BE DESIGNED WITH A HARD WIRED, DASH-MOUNTED SWITCH THAT ENABLES THE VEHICLE OPERATOR TO INHIBIT AFTERTREATMENT DIESEL PARTICULATE FILTER REGENERATION IN ENVIRONMENTS WHERE THE OPERATOR BELIEVES IT MAY BE UNSAFE FOR ELEVATED EXHAUST TEMPERATURES. DUE TO AN ISSUE WITH THE LOGIC IN THE ECM SOFTWARE IN THESE ENGINES, THE SWITCH MAY NOT FUNCTION CORRECTLY, LEADING THE OPERATOR TO BELIEVE THAT THE SWITCH IS IN "INHIBIT" MODE WHEN IT IS NOT.
PACCAR IS RECALLING 2,096 MY 2009 KENWORTH AND PETERBILT VEHICLES EQUIPPED WITH TRW STEERING SHAFTS. MISLOCATION OF A 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.
KENWORTH IS RECALLING 3,423 MY 2004-2009 T2000, T800,T600, W900 AND T660 VEHICLES. INCREASED BRAKE EXCITATION IN A CERTAIN VEHICLE CONFIGURATION WHICH INCLUDES BENDIX DRUM BRAKES, WIDE BASE LOW PROFILE SINGLE TIRES, AND AN AG400 OR AG460 REAR SUSPENSION, DUE TO ITS UNIQUE BRAKE CLOCKING AND CAM TUBE LENGTH, CAN CAUSE FATIGUE AND CRACKING TO BRAKE ASSEMBLY COMPONENTS.
KENWORTH IS RECALLING 9 MY 2009 T800S VEHICLES EQUIPPED WITH DANA FRONT AXLE. THE BRAKE SPIDER MOUNTING FASTENERS ATTACHING THE BRAKE SPIDER TO THE FRONT STEER AXLE FLANGE MAY HAVE RECEIVED INSUFFICIENT TORQUE DURING THE INSTALLATION PROCESS. THE INSUFFICIENT TORQUE MAY ALLOW THE BRAKE SPIDER FASTENERS AND BRAKE SPIDER TO BECOME LOOSE.
PACCAR IS RECALLING 140 MY 2005, 2007-2009 T800, W900, AND T660 TRUCKS. THE CALIPER MOUNTING FASTENERS ATTACHING THE AIR DISC BRAKE CALIPER ASSEMBLY TO THE TORQUE PLATE MAY HAVE RECEIVED INSUFFICIENT TORQUE DURING THE INSTALLATION PROCESS. THE INSUFFICIENT TORQUE MAY ALLOW THE AIR DISC BRAKE CALIPER ASSEMBLY TO BECOME LOOSE AND POSSIBLY SEPARATE FROM THE VEHICLE.
PACCAR IS RECALLING 130 MY 2004-2009 T2000, T800, T600, W900 AND T660 KENWORTH TRUCKS BUILT WITH AN AG400 REAR SUSPENSION, LONG STROKE BRAKE CHAMBERS, AND WIDE BASE TIRES (SUPER SINGLES). THESE VEHICLES MAY DEVELOP AN INCREASE IN LATERAL AND VERTICAL AXLE MOVEMENT. THIS MOVEMENT MAY CAUSE PART OR PARTS OF THE BRAKE ASSEMBLY (BRAKE CAM TUBE SUPPORT, BRAKE CHAMBER BRACKET, BRAKE CHAMBER, BRAKE SPIDER) TO DEVELOP FATIGUE CRACKS, POSSIBLY RESULTING IN THE FAILURE OF THE PART OR PARTS WITHIN THE BRAKE ASSEMBLY.
PACCAR IS RECALLING 4,883 MY 2006-2009 KENWORTH T600, T660, T800, W900, T2000 AND MY 2008-2009 PETERBILT 365, 367, 379, 384, 386, 387, 388 AND 389 TRUCKS. INADEQUATE STIFFNESS OF THE DIESEL PARTICULATE FILTER (DPF) BRACKET COULD RESULT IN SEPARATION OF THE DPF FROM THE CHASSIS.
PACCAR IS RECALLING 263 MY 2008-2009 KENWORTH T800, W900 AND PETERBILT 365 AND 384 TRUCKS EQUIPPED WITH C7 OR C9 CATERPILLAR DIESEL ENGINES. THE FUEL PUMP OUTLET CHECK PLUG MAY BE CRACKED WHICH COULD CAUSE FUEL TO SPRAY AND LEAK.
PACCAR IS RECALLING 86 MY 2009 KENWORTH T660, T800, W900, AND PETERBILT 386, 365, AND 388 TRUCKS EQUIPPED WITH BENDIX FRONT AIR DISC BRAKES. THE SIZE 14 SERVICE CHAMBER OF CERTAIN FRONT AIR DISC BRAKES MAY HAVE BEEN CONTAMINATED WITH GREASE BETWEEN THE PISTON HEAD/PLATE AND THE DIAPHRAGM. WHEN BRAKING PRESSURE IS APPLIED, THE GREASE MAY ALLOW THE PISTON HEAD/PLATE TO SLIP OFF CENTER AND CATCH ON THE REDUCING RING OF THE SIZE 14 SERVICE CHAMBER.
KENWORTH IS RECALLING 1,189 MY 2009 T2000, T600, T660, T800 AND W900 TRUCKS. THE AXLE U-BOLTS ATTACHING THE AXLE TO THE DRIVE BEAM ON CERTAIN AG380 REAR SUSPENSIONS MAY HAVE RECEIVED INSUFFICIENT FASTENER TORQUE DURING THE INSTALLATION PROCESS.
PACCAR IS RECALLING 1,043 MY 2008-2009 KENWORTH C500, T2000,T660, T800 AND W900 TRUCKS EQUIPPED WITH BENDIX MV-3 DASH CONTROL VALVES. THE MOLDED VALVE BODY HAS AN INCORRECT CORE PIN IN THE INJECTION MOLD CAUSING THE VALVE BODY TO BE OVERSIZED IN THE DOUBLE CHECK VALVE AREA. THIS CONDITION CAN ALLOW THE RUBBER DOUBLE CHECK VALVE TO BECOME LODGED IN THE BODY OPENING UNDER CERTAIN CIRCUMSTANCES.
PACCAR IS RECALLING 318 MY 2007-2009 KENWORTH T800, W900, AND PETERBILT 357, 365, 367, 378, 379, 384, 385, 386,388, AND 389 TRUCKS EQUIPPED WITH PREMIER TRAILER HITCH ASSEMBLIES. THE PINTLE HITCH ASSEMBLIES MAY HAVE BEEN MANUFACTURED IN A MANNER RESULTING IN A REDUCTION OF FATIGUE STRENGTH OF THE PIVOT PINS.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Kenworth told its dealers about the 2009 Kenworth T800: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10254164 | Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available. |
| 10188550 | Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter. |
| 10177021 | Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information. |
| 10173212 | Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles. |
| 10173205 | Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. |
| 10168703 | Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. |
| 10056911 | KENWORTH: SOME TRUCKS FAILED TO MEET COMPANY STANDARDS FOR AIR VOLUME LIFT AXLE AND THE COMPANY WILL INCREASE AIR VOLUME FOR WORTHWHILE IMPROVEMENT TO EXCEED GOVERNMENT FMVSS 121. MODEL T800, W900. *PE |
| 10045240 | KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES. MODELS T660, T800, T700, AND W900. *PE |
| 10045239 | 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 |
| 10044799 | KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. LINE FATIGUE FAILURE MAY BE DUE TO EXCESSIVE VIBRATIONS OF HIGH PRESSURE FUEL LINES AND DIESEL FUEL LEAK AND MALFUNCTION INDICATOR LAMP. *PE |
| 10044093 | KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, ON THE CHASSIS, CERTIFIED CLEAN IDLE DECALS WERE MISTAKENLY INSTALLED AND NEED TO BE REMOVED. *PE |
| 10043743 | KENWORTH: ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, SHOULD HAVE A PROTECTIVE SHIELD FOR SOFTWARE UPDATES AND THE HC DOSER FITTING INSTALLED FOR AFTER AFTERTREATMENT CONTROL UNIT. *PE |
| 10043721 | 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 |
| 10043166 | KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. BULLETIN REFERS TO THE DUAL EXHAUST REAR NOX SENSOR MOISTURE PROTECTION CAMPAIGN. TO DIVERT MOISTURE FROM THE REAR (SCR OUTLET) NOX SENSOR THERE IS A NEW DESIGN FOR EXHAUST ELEMENT. *PE |
| 10042784 | KENWORTH: INFORMATION REGARDING REAR NOX SENSOR REPAIRS SHOULD INCLUDE SYSTEM UPDATES FOR CHASSIS OPERATING IN CONDITIONS WHICH RESULT IN MOISTURE RELATED SENSOR FAILURES WITH IMPROVED MOISTURE PROTECTION EXHAUST DESIGN FOR REAR NOX SENSOR. *PE |
| 10042755 | KENWORTH: FOR CERTAIN TRUCKS, THE ENGINE CONTROL UNIT (ECU), IDENTIFIED AS PMCI IN ENGINE RAPIDO, AND AFTERTREATMENT CONTROL UNIT WILL BENEFIT FROM SOFTWARE UPDATES. *PE |
| 10041350 | 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 |
| 10041346 | PACCAR: WATER MAY SEEP BETWEEN THE WIRE INSULATION AND POTTING OF THE FUEL SENSOR. THERE MAY BE AN ERRATIC FALSE WARNING OF WATER IN FUEL. *RM |
| 10040384 | PACCAR SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THERE HAVE BEEN UPDATES TO THE ENGINE SOFTWARE. *RM |
| 10040366 | KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE ODOMETER MAY INACCURATELY RECORD MILEAGE. THE FOG LAMP CIRCUIT MAY NOT WORK WITH THE INSIDE SWITCH. SOME CHASSIS HAVE INACCURATE CHASSIS WEIGHT ON THE DOOR LABEL. *RM |
| 10040181 | PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM |
| 10040180 | PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM |
| 10040178 | PACCAR: A COOLANT SIEVE MUST BE REMOVED AT THE FIRST ENGINE OIL CHANGE. *RM |
| 10040167 | PACCAR: INFORMATION ON PREMATURE FAN CLUTCH LINING WEAR. *RM |
| 10040166 | PACCAR: INFORMATION ON FAN HUB BEARINGS INSPECTION AND WARRANTY EXTENSION DUE TO A HIGHER THAN NORMAL FAILURE RATE. *RM |
NHTSA manufacturer communications (public domain)
NHTSA investigations
Driveshaft separates from tractor
NHTSA Office of Defects Investigation