Flash: Heating Ventilation and Air Conditioning (HVAC) Updates This bulletin involves reprogramming the...

Bulletin number

0804322REVC

Component

Visibility: defroster/defogger/HVAC 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: During a remote start, the heated wheel, seat, mirrors and/or the Electric Back Light (EBL) may not turn on. 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 bar1-2 and rear airflow at blower bar 5-7

Owners of these vehicles have filed 8 complaints in the visibility category.