Flash: HVAC System Enhancement
This bulletin involves reprogramming the HVAC control module with the latest available
software.
The customer may describe one of the following:
· **The radio temperature display does not match the HVAC controller temperature
display.
· After a temperature slide bar movement, the radio display shows the temperature
slider waiting for about three seconds and then the slide bar jumps again.
· Insufficient heating or cooling inside the vehicle.**
· After the ignition has been turned off for over four minutes, the MTC HVAC controls
change to a different setting. The temperature setting should remain where the
temperature was last set at. When the temperature slider bar is left at mid way point
or less, the setting will revert to a cooler setting depending on where it was set
before.
