# Service bulletin 34\-085 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10173212 - Published by NHTSA: 2020\-04\-03 - Manufacturer's number: 34\-085 - Manufacturer's date: 2020\-03\-03 - NHTSA component: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM ## NHTSA's summary 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. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10173212-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10173212-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Electrical system, Throttle and cruise control ## Vehicles listed - 2007 KENWORTH 54 - 2008 KENWORTH 953 - 2011 to 2016 KENWORTH 963 - 2008 KENWORTH AEROCAB - 2004 to 2005 KENWORTH C500 - 2006 to 2018 KENWORTH C500 - 2007 KENWORTH C510 - 2011 to 2016 KENWORTH C540 - 2008 to 2009 KENWORTH C548CH - 2011 to 2016 KENWORTH C550 - 2004 KENWORTH K100 - 2016 KENWORTH K170 - 2010 to 2018 KENWORTH K270 - 2012 to 2016 KENWORTH K300 - 2010 to 2018 KENWORTH K370 - 2008 KENWORTH K500 - 2011 to 2012 KENWORTH K500 - 2005 to 2007 KENWORTH MB 55 - 2007 to 2008 KENWORTH T170 - 2012 to 2018 KENWORTH T170 - 2004 to 2005 KENWORTH T2000 - 2006 to 2012 KENWORTH T2000 - 2007 to 2018 KENWORTH T270 - 2004 to 2011 KENWORTH T300 - 2007 to 2018 KENWORTH T370 - 2011 KENWORTH T400 - 2013 to 2015 KENWORTH T400 - 2010 to 2018 KENWORTH T440 - 2009 to 2017 KENWORTH T470 - 2004 to 2005 KENWORTH T600 - 2006 to 2011 KENWORTH T600 - 2013 KENWORTH T600 - 2017 to 2018 KENWORTH T600 - 2004 to 2018 KENWORTH T660 - 2011 to 2018 KENWORTH T680 - 2007 to 2014 KENWORTH T700 - 2004 to 2005 KENWORTH T800 - 2006 to 2018 KENWORTH T800 - 2011 to 2018 KENWORTH T880 - 2004 to 2005 KENWORTH W900 - 2006 to 2018 KENWORTH W900 - 2010 KENWORTH W900S - 2012 to 2016 PACCAR C540 - 2013 to 2017 PACCAR MX\-11 - 2011 to 2017 PACCAR MX\-13 - 2005 PETERBILT 201 - 2008 to 2018 PETERBILT 210 - 2015 to 2018 PETERBILT 220 - 2004 to 2018 PETERBILT 320 - 2008 PETERBILT 325 - 2010 to 2011 PETERBILT 325 - 2014 to 2018 PETERBILT 325 - 2004 to 2005 PETERBILT 330 - 2007 to 2018 PETERBILT 330 - 2005 to 2011 PETERBILT 335 - 2008 PETERBILT 336 - 2008 to 2018 PETERBILT 337 - 2006 to 2011 PETERBILT 340 - 2008 to 2018 PETERBILT 348 - 2004 to 2016 PETERBILT 357 - 2004 to 2005 PETERBILT 362 - 2004 to 2018 PETERBILT 365 - 2004 to 2018 PETERBILT 367 - 2004 PETERBILT 372 - 2004 to 2016 PETERBILT 378 - 2004 to 2016 PETERBILT 379 - 2007 to 2008 PETERBILT 379K - 2006 to 2016 PETERBILT 382 - 2007 to 2018 PETERBILT 384 - 2004 to 2016 PETERBILT 385 - 2004 to 2018 PETERBILT 386 - 2004 to 2016 PETERBILT 387 - 2004 to 2018 PETERBILT 388 - 2004 to 2018 PETERBILT 389 - 2016 PETERBILT 389G - 2008 to 2009 PETERBILT 389K - 2014 PETERBILT 389K - 2008 PETERBILT 398 - 2004 to 2016 PETERBILT 520 - 2017 to 2018 PETERBILT 520 - 2006 to 2018 PETERBILT 567 - 2006 to 2018 PETERBILT 579 - 2006 to 2018 PETERBILT 587 - 2008 to 2014 PETERBILT MODEL 220 ## Recalls for the same vehicles and component - [2020090](/recalls/tc/2020090.md), 2020-03-05: Electrical - [20V130000](/recalls/nhtsa/20V130000.md), 2020-03-04: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES - [16V426000](/recalls/nhtsa/16V426000.md), 2016-06-10: ELECTRICAL SYSTEM:IGNITION:MODULE - [15V597000](/recalls/nhtsa/15V597000.md), 2015-09-24: ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE - [15V456000](/recalls/nhtsa/15V456000.md), 2015-07-22: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR - [2015317](/recalls/tc/2015317.md), 2015-07-20: Electrical - [2015189](/recalls/tc/2015189.md), 2015-05-08: Electrical - [15V270000](/recalls/nhtsa/15V270000.md), 2015-05-08: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR - [15V206000](/recalls/nhtsa/15V206000.md), 2015-04-07: VEHICLE SPEED CONTROL:CRUISE CONTROL - [2014305](/recalls/tc/2014305.md), 2014-07-22: Electrical ## Other bulletins for the same vehicles and component - [E324](/bulletins/11035148.md), 2026-07-22, Service bulletin: ELECTRICAL SYSTEM. The campaign expiration date has been changed to 03/01/2027. - [E326](/bulletins/11032284.md), 2026-05-06, Emissions: ENGINE; ELECTRICAL SYSTEM. EPA17\-24 MX Fuel Injector Connector \- This bulletin has been revised to include all EPA17\-24 and CARB24 PACCAR MX engines. - [E324](/bulletins/11022487.md), 2025-09-03, Service campaign: ELECTRICAL SYSTEM. "Campaign New and improved software is now required for chassis equipped with an Engine Model Year 2016 PACCAR MX\-13 engine to maintain DEF sensor performance and ensure compliance with emissions standards. - [32\-019](/bulletins/10232162.md), 2023-03-01, Service bulletin: STRUCTURE; ELECTRICAL SYSTEM. Fix As Fail – Chassis that were manufactured with certain battery cable routing brackets may experience rubbing or chafing of the battery cables. - [34\-093](/bulletins/10227167.md), 2022-12-05, Service bulletin: ELECTRICAL SYSTEM. 34\-093 Model 389 78\-inch Sleeper 12V Power Port Supplier Change - [23\-005](/bulletins/10225580.md), 2022-11-04, Service bulletin: POWER TRAIN; VEHICLE SPEED CONTROL. Clutch pedal linkage lubrication service interval information is missing from the Service manual for Model 365, 367, and 389 chassis. - [26\-037](/bulletins/10185190.md), 2021-01-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. 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. - [02\-158](/bulletins/10179370.md), 2020-09-03, Service bulletin: EQUIPMENT; STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Fix as Fail: Peterbilt has determined that certain model 348, 365, 367, 382, 384, 386, 388, 389, 567, 579, and 587 trucks, built between 4/13/2010 and 3/16/2020 and equipped with a flush mounted battery box, utilized rubber washers that could rub through and cause the aluminum box mounting tabs to rub directly on the steel frame brackets. This could result in cracked battery box mounting angles. Resolution is to add the reinforcement bracket\(s\) to affected vehicles. - [32\-015](/bulletins/10177021.md), 2020-07-03, Service bulletin: 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. - [20PBA](/bulletins/10174763.md), 2020-05-06, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. "Safety Recall: NHTSA recall number is 20V130. A defect, which relates to motor vehicle safety, may exist in certain Model 365, 389, 567, and 579 vehicles manufactured between April 18, 2014 and March 09, 2020 with a left\-hand under hood jumper start terminal. Jumper terminal battery cables may be too long, or eligible for improved routing. Battery cables that are too long may chafe against the left front suspension leaf spring, which could cause a short circuit, fire under the hood, or increased risk of crash. " JSON: [/v1/bulletins/10173212](/v1/bulletins/10173212) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2034-085&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10173212&vehicle=Service%20bulletin%2034-085)