2020 KENWORTH W990
5 recalls, 0 complaints - 51 TSBs
22V277000 Apr 25, 2022
STEERING:CRITICAL FASTENERS
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2018-2020 Kenworth T270, T370, T440, T470, T660, T680, T880, T800, W900, W990; and 2018-2020 Peterbilt 330, 337, 348, 365, 367, 389, 520, 567, and 579 vehicles. The Dana D-Series axle steer arm fasteners that attach the steering arm to the steering ... Read more
Consequence
Fastener failure can result in a loss of steering control, increasing the risk of a crash or injury.
Remedy
Dealers will replace and torque the steer arm fasteners, at no charge. Owner notification letters were mailed November 8, 2022. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall are 22 PBB and 22 KWB.
21V906000 Nov 19, 2021
SERVICE BRAKES, AIR
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2019-2022 Kenworth T880, W990, Peterbilt 567, 579, 389, and 2022 Peterbilt 536, 537 wrecker and auto hauler vehicles. The work brake (winch brake) may unintentionally disengage the service brakes during winching operations, causing the vehicle to ro... Read more
Consequence
Unintended vehicle movement can increase the risk of a crash or injury.
Remedy
Dealers will update the vehicle software, free of charge. Owner notification letters were mailed on January 3, 2022. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth); or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWG and 21PBM.
20V506000 Aug 26, 2020
POWER TRAIN:AXLE ASSEMBLY
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough t... Read more
Consequence
The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
Remedy
PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for... Read more
19V911000 Dec 19, 2019
POWER TRAIN:DRIVELINE:DRIVESHAFT
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T800, T880 and W990 and Peterbilt 348, 367, 389, 520, and 567 vehicles. The forward rear axle output shafts may have been improperly heat treated during manufacturing, possibly resulting in the shafts fracturing.
Consequence
If the rear axle output shaft fractures, the shaft or interaxle driveline could detach and become a road hazard, increasing the risk of a crash.
Remedy
PACCAR will notify owners, and dealers will inspect and replace the output shafts, as necessary, free of charge. The recall began February 19, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall ar... Read more
19V176000 Mar 5, 2019
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
Defect Description
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T680, T800, T880, W900 and W990 trucks. The rear axles may not contain oil.
Consequence
Without lubricating oil, the bearings, hub and axle shafts may wear, resulting in the separation of a wheel end from the axle, increasing the risk of a crash.
Remedy
Paccar will notify owners, and Kenworth dealers will inspect all of the rear axles for the presence of oil. If no oil is present, the wheels ends will be removed and the bearings, hub and axle shaft will be inspected for damage. If excessive wear or heat damage is evident, the components will be r... Read more
No complaints found for this vehicle.
Technical Service Bulletins, 2020 KENWORTH W990
51 manufacturer communications from 33 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 060000 ENGINE AND ENGINE COOLING | 11 |
| 350000 EQUIPMENT | 8 |
| 110000 ELECTRICAL SYSTEM | 6 |
| 160000 STRUCTURE | 4 |
| 118000 ELECTRICAL SYSTEM:SOFTWARE | 2 |
| 063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM | 2 |
| 180000 VEHICLE SPEED CONTROL | 2 |
| 100000 POWER TRAIN | 2 |
02-174
Aug 30, 2023
350000 EQUIPMENT
Certain W990 hood-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are availabl
02-174
Aug 30, 2023
160000 STRUCTURE
Certain W990 hood-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are availabl
02-174
Aug 30, 2023
060000 ENGINE AND ENGINE COOLING
Certain W990 hood-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are availabl
02-184
Aug 30, 2023
160000 STRUCTURE
Certain W990 chassis may have hood hardware that could loosen. Additionally, some chassis may have hood rests that are too rigid causing excessive noise. Hood attaching hardware and hood rests will be replaced as necessary.
43-072
Jun 2, 2023
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
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
43-072
Jun 2, 2023
060000 ENGINE AND ENGINE COOLING
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
03-087 (E295)
Feb 24, 2023
092300 FUEL SYSTEM, OTHER:FUEL FILTER
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 devel
03-087 (E295)
Feb 24, 2023
060000 ENGINE AND ENGINE COOLING
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 devel
E303
Jan 12, 2023
060000 ENGINE AND ENGINE COOLING
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.
45-064
Oct 18, 2022
060000 ENGINE AND ENGINE COOLING
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 c
E296
Aug 3, 2022
060000 ENGINE AND ENGINE COOLING
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
010000 STEERING
Safety Recall ??A?A? 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 repai
51-013
Feb 4, 2022
350000 EQUIPMENT
Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G a
51-013
Feb 4, 2022
110000 ELECTRICAL SYSTEM
Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G a
R2103
Jan 10, 2022
060000 ENGINE AND ENGINE COOLING
Retrofit - The emissions exemption will be expiring on 5/15/2022 for certain pre-production vehicles equipped with PACCAR MX-11 and MX-13 EPA 2021 Emissions engines. Production-level components are now available to make these vehicles compl
43-071
Sep 21, 2021
080000 FUEL SYSTEM, DIESEL
Fix-As-Fail a?? 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 veh
02-168
Sep 20, 2021
160000 STRUCTURE
Information Only - Rear axle Quarter Fenders with less than two inches of clearance between the top of the quarter fender and the bottom of the trailer/equipment are susceptible to damage. The lack of clearance could result in cracked/broke
21KWD
Jun 14, 2021
060000 ENGINE AND ENGINE COOLING
Information Only a?? 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
Feb 25, 2021
110000 ELECTRICAL SYSTEM
Non-Safety Campaign a?? The batteries may drain quickly due to the VECU not going to sleep. Updated VECU software is available to resolve the issue.
02-160
Feb 10, 2021
356000 EQUIPMENT ADAPTIVE/MOBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
350000 EQUIPMENT
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
136000 VISIBILITY:WINDSHIELD WIPER/WASHER
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
02-160
Feb 10, 2021
130000 VISIBILITY
Information Only a?? Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-014
Oct 12, 2020
110000 ELECTRICAL SYSTEM
Fix-As-Fail a?? 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.
A003
Oct 9, 2020
010000 STEERING
PACCAR has determined that all Set Forward Front Axle (SFFA) models with the PACCAR 20K front steer axle and wide-based tires have the potential to experience a shimmy or shake in the front axle. Wide-based tires include any series tires wi
A003
Oct 9, 2020
100000 POWER TRAIN
PACCAR has determined that all Set Forward Front Axle (SFFA) models with the PACCAR 20K front steer axle and wide-based tires have the potential to experience a shimmy or shake in the front axle. Wide-based tires include any series tires wi
14-027
Sep 25, 2020
350000 EQUIPMENT
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners.
14-027
Sep 25, 2020
160000 STRUCTURE
Information only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame fasteners on all vehicles. Torque specifications for these fasteners are different from previous fasteners.
37-001
Aug 26, 2020
350000 EQUIPMENT
Fix-As-Fail a?? The Master Switch Module (MSM) may lose dash switch memory and functionality when the battery disconnect switch is cycled. An improved MSM is available to resolve the issue.
37-001
Aug 26, 2020
110000 ELECTRICAL SYSTEM
Fix-As-Fail a?? The Master Switch Module (MSM) may lose dash switch memory and functionality when the battery disconnect switch is cycled. An improved MSM is available to resolve the issue.
37-001
Aug 26, 2020
060000 ENGINE AND ENGINE COOLING
Fix-As-Fail a?? The Master Switch Module (MSM) may lose dash switch memory and functionality when the battery disconnect switch is cycled. An improved MSM is available to resolve the issue.
44-033
Jul 21, 2020
080000 FUEL SYSTEM, DIESEL
Non-Safety Campaign a?? The end cap welds on certain fuel tanks may not meet internal quality standards due to improper weld equipment settings. The fuel tanks will be replaced.
32-015
Jun 8, 2020
110000 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 incomplet
32-016
Mar 17, 2020
350000 EQUIPMENT
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
02-157
Feb 26, 2020
130000 VISIBILITY
Fix-As-Fail: The seal on T680, T880, and W990 windshields may be delaminated. Replace the windshield and encapsulated seal to resolve the issue.
36-005
Jan 31, 2020
180000 VEHICLE SPEED CONTROL
Information Only - Driver Performance Assistance (DPA) Coasting and Braking Scores Not Incrementing, Stays at 50%. The average score will never change nor create driver assistance popups based upon driver??A?A?s actions. A future software u
36-005
Jan 31, 2020
030000 BRAKES (PWS)
Information Only - Driver Performance Assistance (DPA) Coasting and Braking Scores Not Incrementing, Stays at 50%. The average score will never change nor create driver assistance popups based upon driver??A?A?s actions. A future software u
32-013
Jan 3, 2020
110000 ELECTRICAL SYSTEM
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 sof
03-071
Dec 18, 2019
118000 ELECTRICAL SYSTEM:SOFTWARE
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.
22-016
Dec 10, 2019
356000 EQUIPMENT ADAPTIVE/MOBILITY
This bulletin has been obsoleted and replaced by Safety Recall 19KWE.
22-016
Dec 10, 2019
350000 EQUIPMENT
This bulletin has been obsoleted and replaced by Safety Recall 19KWE.
22-016
Dec 10, 2019
200000 WHEELS
This bulletin has been obsoleted and replaced by Safety Recall 19KWE.
22-016
Dec 10, 2019
100000 POWER TRAIN
This bulletin has been obsoleted and replaced by Safety Recall 19KWE.
E240
Nov 27, 2019
180000 VEHICLE SPEED CONTROL
Fix As Fail-Shudder sensation near the governed vehicle speed when using cruise control due to excessive control messaging from VECU. A VECU software update is available to correct the condition.
01-075
Nov 6, 2019
060000 ENGINE AND ENGINE COOLING
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
350000 EQUIPMENT
Information Only ??A?A? This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
TIB43-062
Sep 27, 2019
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Information Only ??A?A? 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
Aug 23, 2019
060000 ENGINE AND ENGINE COOLING
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
34-077
Apr 8, 2019
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
34-077
Apr 8, 2019
353000 EQUIPMENT:ELECTRICAL
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
TIB34-073
Dec 5, 2018
118000 ELECTRICAL SYSTEM:SOFTWARE
Fix-As-Fail: Vehicles equipped with VECU may activate frequently when LVD is enabled. Resolution is to update the CECU software.
KENWORTH W990 - All Years Overview
Complete safety history for the KENWORTH W990 across all model years (2018, 2026).
41
Total Recalls
0
Total Complaints
0
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths