2015 Kenworth T680 problems, complaints & recalls
Most-reported problem areas: Fuel/Propulsion System (2) · Vehicle Speed Control (1) · Structure:body (1)
🧭 Reliability snapshot
Compared against other Kenworth T680 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (11)
Service Brakes, Air:supply:reservoir/Tank 2024-02-23 · campaign 24V145000 · 936 vehicles
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 requirements of Federal Motor Vehicle Safety Standard number 121, "Air
Risk: Insufficient air volume can reduce braking performance and increase the risk of a crash.
Fix: 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 recall is 24KWD.
Electronic Stability Control (Esc) 2020-04-06 · campaign 20V199000 · 460,515 vehicles
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 dash warning light for the ABS may not illuminate to warn the driver of the loss of ABS. As such, these vehicles fail
Risk: If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Fix: 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 service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 20pbc AND 20KWB.
Exterior Lighting 2018-11-16 · campaign 18V816000 · 1,619 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2013-2019 Kenworth T680 and T880 and Peterbilt 579 trucks, greater than 30 feet long and equipped with side extender mounted intermediate marker lamp/turn signals that do not include a reflex reflector. Since both intermediate side marker lamps and reflex reflectors are required, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Missing reflex reflectors can reduce the vehicle's visibility to other drivers, increasing the risk of a crash.
Fix: PACCAR will notify owners and dealers will install reflex reflective tape, free of charge. The recall began January 15, 2019. Owners may contact PACCAR customer service at 1-918-259-3258. PACCAR's number for this recall is 18KWF, and 18PBC.
Electronic Stability Control (Esc) 2018-06-01 · campaign 18V368000 · 85,626 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2017-2018 Peterbilt 567 and 579 trucks and 2015-2018 Kenworth T660, T680, T800, T880 and W900 trucks. 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
Risk: If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
Fix: 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 July 30, 2018. Owners may contact Peterbilt customer service at 1-918-259-3258 or Kenworth customer service at 1-425-828-5000.
Exterior Lighting 2017-07-25 · campaign 17V471000 · 5,731 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2013-2017 Peterbilt 567 and 579 Kenworth T680 and T880 trucks equipped with optional spotlights. The spotlight circuit may not be adequately protected in the event of a short.
Risk: A short in the spotlight circuitry may increase the risk of a fire at the cab fuse block.
Fix: PACCAR will notify owners, and dealers will change the polyfuse switch in the spotlight circuit to a standard fuse, free of charge. The recall began on September 19, 2017. Owners may contact PACCAR customer service at 1-940-591-4220. PACCAR's number for this recall is 17KWC and 717-B.
Fuel System, Other:delivery:hoses, Lines/Piping, And Fittings 2017-02-15 · campaign 17V103000 · 465 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain 2015-2018 Kenworth K370, T680, T880 and 2017-2018 Peterbilt 567 and 579 trucks. The plastic fuel tee fittings on these trucks may leak fuel.
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Fix: Kenworth and Peterbilt will notify owners, and dealers will replace the suspect fuel tees, free of charge. The recall began on April 13, 2017. Owners may contact Kenworth customer service at 1-425-828-5000 and Peterbilt customer service at 1-940-591-4000. PACCAR's numbers for this recall is 17KWA and 217-A.
Exterior Lighting:hazard Flashing Warning Lights 2015-07-22 · campaign 15V458000 · 12,551 vehicles
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 flashing functionality after the brake pedal is pushed for more than two seconds. Normal hazard flashing functio
Risk: If the hazard warning lamps are overridden by the DRL, oncoming vehicles may fail to be warned, increasing the risk of a crash.
Fix: 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.
Power Train:driveline:driveshaft 2015-05-26 · campaign 15V310000 · 30 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain model year 2014 and 2015 Kenworth T660, T680, and T800 trucks manufactured January 29, 2013, to April 2, 2014, and 2013 Peterbilt 587 trucks manufactured on August 8, 2012. The affected trucks are built with a driveshaft that may not transmit power to the wheels due to weld failure from corrosion.
Risk: If the weld fails causing a loss of power to the rear wheels, the vehicle operator may be unable to move the vehicle, or may experience deceleration if the vehicle is in motion, increasing the risk of a vehicle crash.
Fix: PACCAR will notify owners, and dealers will replace the defective driveshafts, free of charge. The recall began on July 15, 2015. Owners may contact Kenworth customer service at 1-425-828-5000, or Peterbilt customer service at 1-940-591-4000. PACCAR's number for this recall is 15KWJ and 515-H.
Electrical System:alternator/Generator/Regulator 2015-05-08 · campaign 15V270000 · 1,494 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain model year 2014-2016 Kenworth T660, T680, T880 trucks manufactured February 18, 2013, to April 10, 2015, and 2011-2016 Peterbilt 386, 389, 567, 579, and 587 trucks manufactured December 13, 2010, to April 20, 2015. The affected trucks, equipped with PACCAR MX-13 engines and Delco-Remy 40SI alternators, have alternator charge cables that may chafe against a formed metal freon discharge line.
Risk: If the alternator cable rubs through its insulation, an electrical short may occur, increasing the risk of a fire.
Fix: PACCAR will notify owners, and dealers will reroute the alternator charge cable away from the metal freon line, free of charge. PACCAR issued an interim notification to owners on July 10, 2015. The recall began on September 16, 2015. Owners may contact Kenworth customer service at 1-425-828-5000 or Peterbilt customer service at 1-940-591-4000. PACCAR's numbers for this recall are 15KWE and 515-F.
Power Train:axle Assembly 2015-04-03 · campaign 15V196000 · 24 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain model year 2015-2016 Kenworth T680 and T880 trucks manufactured November 17, 2014, to January 5, 2015. The affected vehicles are equipped with Meritor MT-40-14X rear drive axles that may circulate an inadequate amount of lubricant to the wheel end hub assembly.
Risk: Without adequate lubrication to the wheel end hub assembly, the bearings may fail prematurely, increasing the risk of a wheel-end fire or crash.
Fix: Kenworth will notify owners, and dealers will replace the defective rear drive axle and inspect the wheel ends for damage, replacing them, as needed, free of charge. The recall began May 29, 2015. Owners may contact Kenworth customer service at 1-425-828-5000. PACCAR's number for this recall is 15KWB.
Parking Brake:conventional:air 2014-12-29 · campaign 14V810000 · 1,623 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain model year 2015 Peterbilt 367, 389, 567, 579, and 587 trucks manufactured from May 23, 2014, to February 13, 2015, and 2015 Kenworth T270, T370, T440, T470, T660, T680, T800, T880, and W900 trucks manufactured from May 23, 2014, to February 13, 2015, equipped with certain air brake actuators. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.
Risk: Brake drag may result in a wheel end fire.
Fix: Kenworth and Peterbilt will notify owners, and dealers will inspect and replace the brake chamber, as necessary, free of charge. An interim notice was mailed to owners March 3, 2015. The recall began on May 14, 2015. Owners may contact PACCAR customer service at 1-425-828-5000 (Kenworth), or 1-940-591-4000 (Peterbilt). PACCAR's number for this recall is 14KWP (Kenworth), and 1214L (Peterbilt).
Service bulletins (48)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-09-11 · P001 · Service Bulletin/Repair Instructions
"kenworth: dealers should check the chassis list and sir weekly for vin changes. 2 chassis added to the chassis list. peterbilt: dealers should check the chassis list and sir weekly for vin changes. 10 chassis added to the chassis list."
Electrical System 2026-05-06 · 02-177 · Service Bulletin/Repair Instructions
troubleshooting procedures for 2.1m cab power windows are now available.
Service Brakes, Air 2024-04-09 · 24KWD · Service Bulletin/Repair Instructions
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 ã¢ââair brake systemsã¢ââ. this bulletin will be updated when repair parts and procedures are available.
Engine And Engine Cooling 2023-10-18 · E304 · Service Bulletin/Repair Instructions
e304: paccar mx-11 and mx-13 emy2016 nox and n2o exceedance emissions recall certain vehicles with paccar mx-11 and mx-13 emy2016 engines with less than 300,000 miles (482,803 km) have been shown, in testing, to exceed regulatory limits for nox and n2o emissions. this bulletin now applies to both
Fuel System, Other:fuel Filter 2023-02-24 · 03-087 (E295) · Service Bulletin/Repair Instructions
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.
Engine And Engine Cooling 2022-08-03 · E296 · Service Bulletin/Repair Instructions
kenworth is providing guidance for paccar mx engine composite oil pan leak troubleshooting to avoid over-repairs and to provide warrantable repair guidance. oil leaks, if not repaired, can lead to severe engine damage.
Showing the 6 most recent of 48 bulletins. Search all of them free at nhtsa.gov.
What owners report
2022-09-21 · Engine And Engine Cooling · 924,278 mi“the contact owns a 2015 kenworth t680. the contact stated while driving at 55 mph, he noticed smoke coming through the ac vents and from underneath the hood of the vehicle. there was no warning light illuminated. the contact veered to the side of the road and opened the hood of the vehicle. the contact noticed that the water pump was leaking and o…”
2020-04-30 · Fuel/Propulsion System · 530,000 mi“tl* the contact owns a 2015 kenworth t680. the contact stated that the heavy truck exhibited numerous failures with the diesel fuel system which caused the failures of the nox sensor, diesel fuel dosing valve, the egr cooler, the hc valve, the ammonia sensor, the common rail, fuel pump, exhaust flex pipe, and the computer also failed which caused …”
2019-06-13 · Fuel/Propulsion System · 20 mi“my 2015 kenworth t680 from what i was told by the dealer shop has a defective fuel pump that causing the engine of my to stall in the middle of the highway almost caused me a terrible accident, but the manufacturer refused to take responsibility so i am placing this complaint to see if i can get any assistance, thanks.…”
2019-01-05 · Structure:body · 669,842 mi“takata recall mhc kenworth has replaced or corrected the drivers low beam light 5 times, 3 for fee and 2 as a cost to my business. the this headlight continues to malfunction and the light bulb is not even blown. the dashboard lights goes pitch black dark. the orange engine outline comes on every single time the malfunction occurs. this is not saf…”
2018-11-29 · Power Train · 395,600 mi“i have always any lights on my truck / now cheek engine light on for ccv speedo rotor / sensor nox all most $3500 doller need fix / i don't have / before i lot money put on repair/…”
2018-07-09 · Service Brakes · 348,455 mi · 🔥 fire“driver driving down flat hyway near easton pa right front drive axle brakes started on fire cause thought to be haldex brake chamber since having so many fail failures of this gold seal chamber and causing fires, total loss of both truck and trailer, driver confirmed right front heel end on fire and could not get it put out due to all the heat…”
2018-03-21 · Steering · 508,600 mi“when the engine runs hot, from hard pulls over a mountain, the power steering fluid gets so hot it boils. i lose some power steering when that happens.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.