March 31, 2015 Service bulletin

Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the...

Dodge technical service bulletin 18-026-15 for 2015 Dodge Challenger.

Bulletin number: 18-026-15
Component: Electrical system
Summary: Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module with the latest available software. A small number of customers may experience a slight spark knock condition during aggressive high speed driving. They may state that when this occurs, the vehicle is unable to achieve maximum top speed. No Diagnostic Trouble Codes (DTCs) are associated with this condition. In addition, customers may also comment that, with the cluster set on metric units, they are unable to accurately increase or decrease the cruise control set speed using the resume or set buttons. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the vehicle speed will increase approximately 1.6 KPH.

Owners of these vehicles have filed 26 complaints in the electrical category.

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