Service bulletins for the 2014 Peterbilt 388
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.
25 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Automatic transmission are shown. Show all
| RN-714-1 | 2014-10-28. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION. PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN TRUCKS, AT TIME OF ASSEMBLY, MAY NOT HAVE A PROPERLY SEATED UPPER REVERSE IDLER FEED TUBE (OIL SUPPLY LINE), RESULTING IN BEARINGS HAVING REDUCED OIL PRESSURE. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.