2015 Kenworth T400 problems, complaints & recalls
Safety recalls (1)
Electrical System 2014-11-10 · campaign 14V722000 · 1,380 vehicles
Defect: PACCAR Incorporated (PACCAR) is recalling certain model year 2015 Kenworth T660, T800, W900, T400, and C500 heavy trucks manufactured September 19, 2014, to October 30, 2014. The affected vehicles may have been produced with an undersized wire gauge for the trailer stop lamp circuit in the instrument panel harness.
Risk: If the smaller wire gauge may overheat increasing the risk of a vehicle fire.
Fix: PACCAR will notify owners, and dealers will replace the defective wire with a properly sized wire, free of charge. The recall began on December 19, 2014. Owners may contact PACCAR customer service at 1-425-828-5000 (Kenworth).
Service bulletins (13)
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."
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.
Visibility:windshield Wiper/Washer 2021-02-10 · 02-160 · Service Bulletin/Repair Instructions
information only â windshield washer pumps have a high no trouble found rate. washer pumps may fail to spray due to a clogged filter.
Power Train 2020-12-18 · 26-037 · Service Bulletin/Repair Instructions
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.
Service Brakes 2020-07-29 · 13-054 · Service Bulletin/Repair Instructions
fix-as-fail - bendix new-gen lightweight steer axle drum brake spider cracking
Electrical System 2020-06-08 · 32-015 · Service Bulletin/Repair Instructions
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.
Showing the 6 most recent of 13 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.