Service bulletins for the 2012 Peterbilt 320
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.
24 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Heating and air conditioning are shown. Show all
| SB-9-11 | 2011-12-30. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. PETERBILT: TECHNICAL INFORMATION IS PROVIDED FOR CERTAIN TRUCKS OPERATING IN HIGH AMBIENT TEMPERATURE (100 F) AND IS IDLING OR DURING STOP AND GO DRIVING, MAY CAUSE THE HIGH SIDE PRESSURE SWITCH TO SHUT OFF THE COMPRESSOR. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.