2020 Kenworth W990
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Kenworth › W990 › 2020
These records cover every 2020 Kenworth W990. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
5 recalls name the 2020 Kenworth W990. Newest first.
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 knuckle may fail.
Risk and remedy
Risk
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.
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 roll.
Risk and remedy
Risk
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.
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 to sufficiently engage the locking feature of the…
Risk and remedy
Risk
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 this recall is 20PBE and 20KWC.
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.
Risk and remedy
Risk
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 are 19KWE and 19PBG.
PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T680, T800, T880, W900 and W990 trucks. The rear axles may not contain oil.
Risk and remedy
Risk
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 replaced, as necessary. Oil will then be added per the axle specifications. These repairs will be performed free of charge. The recall began April 16, 2019. Owners may contact Kenworth customer service at 1-425-828-5888. Paccar's number for this recall is 19KWA.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 10241501Certain 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 available for replacement of hood-mounted engine air intake covers.
- 10241498Certain 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.
- 10238382Certain 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 receive a replacement DEF sensor, DEF tank heater coolant control valve, and re-enabled DEF diagnostic software. Please note that chassis equipped with PACCAR PX engines will be eligible for this repair at a future date when software is available.
- 10232496Certain 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.
- 10231101This 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 do not receive this repair may be responsible for progressive engine damage caused by broken oil bypass valve tabs.
- 10225578Info 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 deliver secure software updates remotely. This will reduce downtime and save on maintenance costs for eligible vehicles.
- 10218895Kenworth 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.
- 10213089Safety Recall 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 are available.
- 10208770Due 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 antennas as a primary antenna may experience this degradation
- 10207153Retrofit - 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 compliant.
- 10201965Fix-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 operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
- 10201956Information 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/broken quarter fenders or complete separation if undetected or un-remedied.
- 10198762Information Only 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 .
- 10188550Information Only Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
- 10188467Non-Safety Campaign The batteries may drain quickly due to the VECU not going to sleep. Updated VECU software is available to resolve the issue.
- 10182216Fix-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.
- 10182207PACCAR 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 with widths of 385 mm or higher. This is due a lack of friction in the current axle rotating components. Replacing the thrust roller bearing with a thrust washer assembly creates enough friction to eliminate the shimmy.
- 10180726Information 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.
- 10179371Fix-As-Fail 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.
- 10177942Non-Safety Campaign 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.
- 10177021Information 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.
- 10173205Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
- 10172037Fix-As-Fail: The seal on T680, T880, and W990 windshields may be delaminated. Replace the windshield and encapsulated seal to resolve the issue.
- 10171030Information 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 software update. This bulletin will be updated when the resolution is available.
- 10171021Information 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 drivers actions. A future software update will resolve the issue. This bulletin will be updated when the software update becomes available.
- 10169787Information 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.
- 10169711This bulletin has been obsoleted and replaced by Safety Recall 19KWE.
- 10168703Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
- 10168654Fix 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.
- 10165583Information Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
- 10164375Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
- 10159674Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
- 10154342Fix-As-Fail: Vehicles equipped with VECU may activate frequently when LVD is enabled. Resolution is to update the CECU software.
Every Kenworth W990 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.