2020 Kenworth T170 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
• Apr 16, 2026 Service bulletinBogie Crossmember Torque Value Update
• Oct 18, 2022 Service bulletinInfo Only
• May 10, 2022 Service bulletinSafety Recall – Interim Notification
• Feb 4, 2022 Service bulletinDue to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet...
• Sep 21, 2021 Service bulletinFix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are...
• Jun 22, 2021 Service bulletinSafety Recall – Cummins Fuel Rail Leak – the federal safety agency ID: 21V391 / TC: 2021-323, Cummins...
• Feb 10, 2021 Service bulletinInformation Only – Windshield washer pumps have a high No Trouble Found rate
• Dec 18, 2020 Service bulletinFix-As-Fail
• Sep 25, 2020 Service bulletinInformation only: In 2020, Peterbilt and Kenworth began using the same M10, M12, M16, and M20 frame...
• Jun 8, 2020 Service bulletinInformation Only:
• Mar 17, 2020 Service bulletinInformation Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment...
• Feb 20, 2020 Service bulletinFix-As-Fail: The cruise control may be inoperative after installing CECU software version P30-1030-118 if...