No complaints are listed for the 2015 Kenworth T400. NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as KENWORTH T400.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
1 recalls.
Date: 2014-11-10. Systems: ELECTRICAL SYSTEM.
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.
Consequence: If the smaller wire gauge may overheat increasing the risk of a vehicle fire.
Remedy: 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).
Do not drive: No. Park outside: No.
Manufacturer communications
13 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 4 |
|---|
| EQUIPMENT | 3 |
|---|
| ENGINE AND ENGINE COOLING | 2 |
|---|
| EQUIPMENT ADAPTIVE/MOBILITY | 2 |
|---|
| ENGINE | 1 |
|---|
| POWER TRAIN | 1 |
|---|
| SERVICE BRAKES | 1 |
|---|
| SERVICE BRAKES, AIR | 1 |
|---|
11037541
Date: 2026-09-11. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.
"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."
10254164
Date: 2024-04-09. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES, AIR.
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 A A?A A A A Air Brake SystemsA A?A A A A . This bulletin will be updated when repair parts and procedures are available.
10188550
Date: 2021-02-10. Type: Service Bulletin/Repair Instructions. Systems: EQUIPMENT, EQUIPMENT ADAPTIVE/MOBILITY, VISIBILITY.
Information Only A?A A Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
10185190
Date: 2020-12-18. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, EQUIPMENT ADAPTIVE/MOBILITY, POWER TRAIN.
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.
10177935
Date: 2020-07-29. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
10177021
Date: 2020-06-08. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
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.
10173583
Date: 2020-03-27. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to resolve the vibration on the tank cover by adding bottom tank washers.
10173205
Date: 2020-03-17. Type: Service Bulletin/Repair Instructions. Systems: EQUIPMENT.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
10173212
Date: 2020-03-03. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL.
Information Only A?A A Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
10169787
Date: 2019-12-18. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
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.