Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
24KWD
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 âÂÂAir Brake SystemsâÂÂ. This bulletin will be updated when repair parts and procedures are available.
03-087 (E295)
Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.
21KWD
Information Only â C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast the end of the 2021 calendar year without particulate matter (PM) sensors installed .
32-017
Non-Safety Campaign â The batteries may drain quickly due to the VECU not going to sleep. Updated VECU software is available to resolve the issue.
32-018
Non-Safety Campaign â Chassis with the City Horn option may generate unexpected alerts. A VECU software update is available to resolve the issue.
02-160
Information Only â Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
26-037
Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
01-079
Fix as Fail The HVAC system, on model 579 and 567 vehicles manufactured since 1/20/2012 may have inadequate temperature control. The HVAC may intermittently stop blowing cold air, typically after a truck restart. Driver may notice the system returns to normal after key cycle. The remedy is updating HVAC software.
32-015
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.
32-016
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-085
Information Only â Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
32-013
Information Only: The AutoStart System Test does not recognize the hood opening and closing when running the test on a model 579 or 567 chassis equipped with a VECU software version 9.8 and 9.9. The issue will be fixed on a future VECU software update. This bulletin will be updated when the resolution is available.
43-063
Emissions Campaign â The Engine Overspeed lamp may illuminate during a smoke opacity test. A software update is available to resolve the issue.
03-071
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
01-071
Fix-As-Fail The evaporator core may crack in vehicles with the ISX-15 engine. An improved suction line has been released that removes stress transferred to the evaporator core.
01-075
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB43-062
Information Only â This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
42-058
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
01-073
Fix as Fail HVAC system may demonstrate inadequate temperature control, be stuck in defrost mode, or have intermittent changes in fan speed that can be remedied with an updated HVAC software.
34-077
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
34-072
Information: J1939 CAN BUS Best Practices
32-010
Information only - Customer installed inverters may be wired incorrectly.
34-060
Non Safety Campaign: The circuit for the Trailer Hotline/Trailer Power may not be properly protected on Model T680/T880 vehicles equipped with this option.
43-048
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
01-068
FIX-AS-FAIL: AN INTERNAL ISSUE MAY CAUSE SOME HVAC MODE DOOR ACTUATORS TO FAIL. THIS WILL CAUSE THE HVAC SYSTEM TO ACT ERRATICALLY OR CONSTANTLY TURN ON AND OFF.
51-008
T680 predictive cruise control(PCC) incompatibility with cummins engine.
TIB-01-063
KENWORTH: SOME TRUCKS SLEEPER HEATERS ARE EXPERIENCING A LEAKAGE FROM SLEEPER HEATER CORE O RING COOLANT. MODEL 2012-13 T680, T880. *PE
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.