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May 21, 2026 Service bulletin

Flash: Driver Assistant System Module (DASM) Updates IMPORTANT!

Jeep technical service bulletin 08-114-26 REV. A for 2026 Jeep Wrangler and 2026 Jeep Wrangler 4xe.

Bulletin number
08-114-26 REV. A
Component
Forward collision avoidance: adaptive cruise control
Summary
Flash: Driver Assistant System Module (DASM) Updates IMPORTANT! This TSB CANNOT BE APPLIED unless BOTH of the following customer symptoms are met: 1. The customer recently had aftermarket tires installed or had a tire modification where the circumference of tire INCREASED and 2. A Malfunction Indicator Lamp (MIL) Illumination is present with DTC C2206-00 Vehicle Configuration Mismatch present and ACTIVE. Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C2206-00 - Vehicle Configuration Mismatch. NOTE: DTC C2206-00 can trigger after a recent aftermarket tire installation or tire modification. This updated software is to address this DTC set by this condition. Customers may also experience one or more the following: ● Advanced Driver Assistance System features such as Adaptive Cruise Control (ACC), Advanced Emergency Braking (AEB) and Forward Collision Warning (FCW) are not available. ● "ACC/FCW Unavailable Service Required" message intermittently in the Instrument Panel Cluster (IPC). ● "Service Adaptive Cruise Control" message is displayed in the IPC. This bulletin involves inspecting and reprogramming of the DASM with the latest available software.

Owners of these vehicles have filed 1 complaints in the driver assistance category.

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