Flash: Heating, Ventilation And Cooling (HVAC) Module Updates Customers must experience a Malfunction...
Jeep technical service bulletin 08-279-26 for 2026 Jeep Grand Cherokee, 2026 Jeep Grand Cherokee L and 2026 Jeep Grand Cherokee 4xe.
- Bulletin number
- 08-279-26
- Component
- Electrical system
- Summary
- Flash: Heating, Ventilation And Cooling (HVAC) Module Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● B1148-2A - Left Rear Heated Seat Switch - Stuck. Customers may also comment on one or more of the following: ● Rear heated/vented seats stop working. ● The rear heated/vented seat button is not illuminating. This bulletin involves reprogramming the HVAC module with the latest software.
Owners of these vehicles have filed 9 complaints in the electrical category.
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