# Service bulletin 15\-029

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: 10194784
- Published by NHTSA: 2021\-06\-02
- Manufacturer's number: 15\-029
- Manufacturer's date: 2021\-05\-27
- NHTSA component: STEERING

## NHTSA's summary

Information Only \- Power steering reservoir cap may separate during removal when it is pulled upward instead of twisted.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194784-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10194784-9999.pdf)

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

## Components

Steering

## Vehicles listed

- 2021 PETERBILT 210
- 2021 PETERBILT 220
- 2021 PETERBILT 320
- 2021 PETERBILT 325
- 2021 PETERBILT 330
- 2021 PETERBILT 337
- 2021 PETERBILT 340
- 2021 PETERBILT 348
- 2021 PETERBILT 357
- 2021 PETERBILT 365
- 2021 PETERBILT 367
- 2021 PETERBILT 378
- 2021 PETERBILT 379
- 2021 PETERBILT 382
- 2021 PETERBILT 384
- 2021 PETERBILT 385
- 2021 PETERBILT 386
- 2021 PETERBILT 387
- 2021 PETERBILT 388
- 2021 PETERBILT 389
- 2021 PETERBILT 520
- 2021 PETERBILT 536
- 2021 PETERBILT 567
- 2021 PETERBILT 579
- 2021 PETERBILT 587

## Recalls for the same vehicles and component

- [2021006](/recalls/tc/2021006.md), 2021-01-11: Steering
- [21V004000](/recalls/nhtsa/21V004000.md), 2021-01-11: STEERING:COLUMN

## Other bulletins for the same vehicles and component

- [46\-028](/bulletins/11033352.md), 2026-06-03, Service campaign: STEERING. Certain Peterbilt Model 520 BEV chassis with an Accelera Power Control and Accessory System \(PCAS\) were manufactured without a check valve in the power steering system.
- [R2105](/bulletins/10251175.md), 2024-03-04, Service bulletin: ELECTRICAL SYSTEM; STEERING:COLUMN. Peterbilt has determined that certain model year 2021, pre\-production chassis are eligible to have specific parts updated to production level.

JSON: [/v1/bulletins/10194784](/v1/bulletins/10194784)

[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%2015-029&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10194784&vehicle=Service%20bulletin%2015-029)