Complaints over time
Complaints about the 2018 Kenworth T800 peaked in 2019, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2018 Kenworth T800
Truck, diesel, 6x4, built in United States. Owner complaints on file from Dec 19, 2019 to Dec 19, 2019.
Recall campaigns covering this model year11657k vehicles or units across those campaigns
Owner complaints1Close to the median 2018 truck
Severity index0.02018 trucks average 14.3
First 24 months0Complaints in its first two years
Components
Complaints by component
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
11 recall campaigns cover the 2018 Kenworth T800
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 24V-145 | Feb 23, 2024 | Air tanks have an insufficient volume of air for the brake system | Brakes | 936 | Repair or modification |
| 23V-717 | Oct 26, 2023 | Additional spacer may have been added to the joint that connects the seat to the seat belt tether and buckle, causing an unsecured connection | Seat belts | 3,841 | Part replacement |
| 22V-277 | Apr 25, 2022 | Dana D-Series axle steer arm fasteners that attach the steering arm to the steering knuckle may fail | Steering | 17,641 | Part replacement |
| 21V-391 | May 26, 2021 | Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak | Fuel system | 612 | Part replacement |
| 20V-199 | Apr 6, 2020 | 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… | Stability and traction control | 460,515 | Software update |
| 18V-931 | Dec 21, 2018 | Internal component in the clutch assembly may fail, possibly resulting in unintended vehicle movement | Powertrain | 25,556 | Not stated |
| 18V-657 | Sep 21, 2018 | In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pump cooling circuit screen becomes restricted | Engine and cooling | 48,896 | Part replacement |
| 18V-555 | Aug 22, 2018 | Engine harnesses may have been manufactured without check engine light (CEL) and stop engine light (SEL) circuits, preventing the driver from… | Electrical system | 11,429 | Repair or modification |
| 18V-368 | Jun 1, 2018 | 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… | Stability and traction control | 85,626 | Software update |
| 17V-443 | Jul 13, 2017 | These engines have a fuel pump whose drive gear could possibly slip on its drive shaft, causing a fuel pump function loss, resulting in an engine… | Fuel system | 1,737 | Part replacement |
| 17V-322 | May 16, 2017 | Brake control airline may be the incorrect size, resulting in an imbalance in the service brake application timing | Brakes | 23 | Repair or modification |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2018 Kenworth T800
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
1 complaint on file, page 1 of 1.
- Filed Dec 19, 2019Failure Nov 1, 201950,688 milesSAN Juan, PRUnknown or other
EHAUST ' BRACKETS ATTACHING THE EXHAUST PIPES TO CAB HAVE RUBBER BUSHINGS THAT DISINTEGRATE QUICKLY, WITHIN A COUPLE OF MONTHS LEAVING THE PIPES HANGING WITH POSSIBILITY OF FALLING INTO THE ROADWAYS AND CAUSING ACCIDENTS. PART NUMBER: M11-1917-004. ON NEW (2018) VEHICLES THEY HAVE BEEN CHANGED MORE THAN ONCE. SEVERAL VEHICLES IN FLEET WITH SAME ISSUE.
NHTSA complaint 11290133
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
38 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.
- P001 Sep 11, 2026 · 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." - E311 Jul 10, 2026 · Service Bulletin/Repair Instructions
The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage. - E311 Jun 6, 2026 · Service Bulletin/Repair Instructions
The PACCAR Powertrain Prognostics Webcast video link has been removed. It will be included with updated information at a later date. - E311 May 18, 2026 · Service Bulletin/Repair Instructions
Kenworth - The Warranty section has been updated to include Peterbilt-specific SRT codes for cross-division repair filing. - 45-070 Apr 17, 2026 · Service Bulletin/Repair Instructions
The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes. - 14-034 Apr 16, 2026 · Service Bulletin/Repair Instructions
Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values. - E304 Mar 21, 2026 · Emissions
CARB Chassis Update - Chassis list updated with 5 KW and 31 PB additional chassis. - 45-070 Jan 31, 2026 · Service Bulletin/Repair Instructions
Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process bu… - 24KWD Apr 9, 2024 · 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 âAir Brake Systemsâ. This bulletin will be updated when repair parts and procedures are available. - 23KWK Mar 1, 2024 · Service Bulletin/Repair Instructions
Safety Recall Repair parts and procedures are now available. On certain Kenworth model years 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, a spacer was installed on the seatbelt mounting assembly. In a severe collisio… - 23KWK Nov 28, 2023 · Service Bulletin/Repair Instructions
Safety Recall Interim Notification On certain Kenworth model year 2018 through 2024 C500/T660/T800/W900 trucks with Sears Atlas 70 or 80 series seats, an additional spacer was installed on the seatbelt mounting assembly. In a severe collision, the ICP bar… - E293 Jun 9, 2023 · Service Bulletin/Repair Instructions
Emissions Recall Certain Vehicle Model Year 2017-2019 chassis equipped with EPA2017 compliant PACCAR MX-13 engines have an EGR flex pipe that can develop cracks and leak untreated exhaust. The EGR Flex pipe will be replaced if it has a suspect part number. - 43-072 Jun 2, 2023 · Service Bulletin/Repair Instructions
Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will now be able to re… - E279 Jun 1, 2023 · Service Bulletin/Repair Instructions
E279: PACCAR MX-13/MX-11 Engine MY17 Software Incorrectly Sets DTC P1092 PACCAR MX-13/MX-11 Engine MY17 Software Incorrectly Sets DTC P1092 Emission Recall - PACCAR MX-13/MX-11 MY2017 software incorrectly sets DTC P1092, which could result in reduced avai… - E303 Jan 12, 2023 · Service Bulletin/Repair Instructions
This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs. Broken oil valve tabs can cause oil flow obstruction to critical engine parts, resulting in serious engine damage. Customers that d… - 45-064 Oct 18, 2022 · Service Bulletin/Repair Instructions
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to del… - E296 Aug 3, 2022 · 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. - 22KWB May 10, 2022 · Service Bulletin/Repair Instructions
Safety Recall â“ Interim Notification - The Dana D-Series front axle steer arm fasteners that attach the steer arm to the steering knuckle may fail, increasing the risk of a crash or injury. Repair information will be added when a repair procedure and parts… - 43-071 Sep 21, 2021 · Service Bulletin/Repair Instructions
Fix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue op… - E271 Jun 8, 2021 · Service Bulletin/Repair Instructions
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system software related issues. - 21KWC Jun 22, 2021 · Service Bulletin/Repair Instructions
Safety Recall – Cummins Fuel Rail Leak – NHTSA ID: 21V391 / TC: 2021-323, Cummins Recall: C2423. Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks. Undetected prolonged diesel fuel spray in the presence o… - E265 May 25, 2021 · Service Bulletin/Repair Instructions
Selected engines have been identified to receive a camshaft inspection and an update for improved camshaft lubrication. - 02-160 Feb 10, 2021 · Service Bulletin/Repair Instructions
Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter. - 26-037 Dec 18, 2020 · 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. - 32-014 Oct 12, 2020 · Service Bulletin/Repair Instructions
Fix-As-Fail – The Battery Management System (BMS) may report the incorrect battery condition. Additional diagnostics are available to correctly determine and repair the root cause of the issue. - 13-054 Jul 29, 2020 · Service Bulletin/Repair Instructions
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking - 32-015 Jun 8, 2020 · 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. - 43-066 Mar 27, 2020 · Service Bulletin/Repair Instructions
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 b… - 34-085 Mar 3, 2020 · Service Bulletin/Repair Instructions
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. - 32-016 Mar 17, 2020 · Service Bulletin/Repair Instructions
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage. - 03-071 Dec 18, 2019 · Service Bulletin/Repair Instructions
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. - 01-075 Nov 6, 2019 · Service Bulletin/Repair Instructions
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor. - TIB43-062 Sep 27, 2019 · Service Bulletin/Repair Instructions
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). - 01-074 Aug 30, 2019 · Service Bulletin/Repair Instructions
Fix-As-Fail -“ C500, T440/T470, T800, W900 chassis HVAC Controllers may become unresponsive after rotating the temperature control knob quickly. HVAC Controllers with improved firmware are available to resolve this issue. - 42-056 Aug 28, 2019 · Service Bulletin/Repair Instructions
Fix-As-Fail -“ Composite fittings used in the cooling system may crack, resulting in coolant leaks. Brass fittings are available to replace the composite fittings. - 43-056 Jun 14, 2018 · Service Bulletin/Repair Instructions
Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label. - 43-056 Jun 14, 2018 · Service Bulletin/Repair Instructions
Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label. - 99-034 Mar 8, 2018 · Service Bulletin/Repair Instructions
Information Only - CECU/VECU unable to communicate with ESA requires use of a Y-cable.
Source: NHTSA manufacturer communications files.