# 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: 10172036
- Published by NHTSA: 2020\-03\-04
- Manufacturer's number: 34\-085
- Manufacturer's date: 2020\-02\-28
- NHTSA component: VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM

## NHTSA's summary

Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead to sensor corrosion.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172036-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172036-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Throttle and cruise control

## Vehicles listed

- 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

- [21V00N000](/recalls/nhtsa/21V00N000.md), 2021-12-29: ELECTRICAL SYSTEM:WIRING
- [2020090](/recalls/tc/2020090.md), 2020-03-05: Electrical
- [20V130000](/recalls/nhtsa/20V130000.md), 2020-03-04: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
- [2019199](/recalls/tc/2019199.md), 2019-04-24: Electrical
- [19V282000](/recalls/nhtsa/19V282000.md), 2019-04-09: ENGINE; ELECTRICAL SYSTEM
- [18V092000](/recalls/nhtsa/18V092000.md), 2018-02-02: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\)
- [2017374](/recalls/tc/2017374.md), 2017-07-27: Electrical
- [17V471000](/recalls/nhtsa/17V471000.md), 2017-07-25: ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; EXTERIOR LIGHTING
- [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

## 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.
- [02\-177](/bulletins/11033351.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.
- [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.
- [51\-016](/bulletins/11001048.md), 2024-06-05, Service bulletin: ELECTRICAL SYSTEM. Information Only Dealers/body builders installing lift gates onto Peterbilt Model 220EV BEV chassis must use 24\-volt lift gate systems 12\-volt lift gate systems are not compatible with vehicle electrical systems. Installation of a 12V lift gate on the 24V system could result in the following: \* Accelerated wear on the 12V batteries. \* Excessive current load on 12V system wiring. \* Lights may dim when lift gate is in operation. \* Lift gate may operate more slowly..
- [28\-001](/bulletins/10243354.md), 2023-10-03, Service bulletin: ELECTRICAL SYSTEM. For all Peterbilt chassis equipped with an air shifted PTO. Oil from the air shift cover of the PTO may leak into the air line, causing the EOA solenoid to become inoperative.
- [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.
- [21PBN](/bulletins/10227172.md), 2022-12-05, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM. 21PBN – LNG/CNG Methane Detecti on System Will Not Warn Operator if System Loses Power – NHTSA ID:21V00N, TC: 2021\-793
- [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.

JSON: [/v1/bulletins/10172036](/v1/bulletins/10172036)

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