2016 Peterbilt 385 technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Sep 11, 2026 Service bulletinKenworth: Dealers should check the chassis list and SIR weekly for VIN changes
• Nov 22, 2024 Service bulletinInfo Only Unnecessary starter replacements can result from customer complaints regarding engine starting...
• Aug 3, 2022 Service bulletinThe service information for Bendix Air Dryer maintenance is being updated to include new procedures.
• Sep 21, 2021 Service bulletinFix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are...
• Feb 10, 2021 Service bulletinInformation Only – Windshield washer pumps have a high No Trouble Found rate
• Jul 29, 2020 Service bulletinFix-As-Fail
• Jun 10, 2020 Service bulletinFix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (“SOC”) exhaust and...
• Jun 8, 2020 Service bulletinInformation Only:
• May 29, 2020 Service bulletinInformation only: Hendrickson Softek front axle maintenance intervals and requirements.
• Mar 27, 2020 Service bulletinDEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank...
• Mar 17, 2020 Service bulletinInformation Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment...
• Mar 3, 2020 Service bulletinInformation Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed,...
• Feb 28, 2020 Service bulletinInformation Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed,...
• Dec 18, 2019 Service bulletinInformation Only
• Nov 6, 2019 Service bulletinInformation Only:
• Sep 27, 2019 Service bulletinInformation Only –
• Aug 28, 2019 Service bulletinFix-As-Fail -“ Composite fittings used in the cooling system may crack, resulting in coolant leaks
• Aug 23, 2019 Service bulletinFix-As-Fail: Two separate causes have been identified as root
• Jun 10, 2019 Service bulletinInformation Only
• Apr 8, 2019 Service bulletinInformation Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
• Jan 4, 2019 Service bulletinInformation: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error
• Jul 23, 2018 Service bulletinInformation
• Jan 22, 2018 Service bulletinFix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
• Nov 13, 2016 Service bulletinSample Customer Letter