Flash: Heating Ventilation and Air Conditioning (HVAC) Updates This bulletin involves reprogramming the...
Jeep technical service bulletin 0804322 REVB for 2021 Jeep Grand Cherokee.
- Bulletin number
- 0804322 REVB
- Component
- Electrical system
- Summary
- Flash: Heating Ventilation and Air Conditioning (HVAC) Updates This bulletin involves reprogramming the HVAC module with the latest available software. Customers may experience the following: High pitch whistle coming from the dash when the blower motor is turned on.High pitch whistle originated from the defroster door when the HVAC unit in either Hi-Level (panel and defrost) or Bi-Level (panel and floor) modes. May be worsened when running the front airflow at blower bar 1-2 and rear airflow at blower bar 5-7
Owners of these vehicles have filed 115 complaints in the electrical category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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