HVAC performance MAX button

[bharmon]

Crosswalk MAX button performance has some glitches.
Per the following specs from Sean May 2014, MAX doesn't return to it's previous state when tapped 'off'. This may also affect or be affected by TRAC tic
Rear screen heater and windshield heater (the buttons below MAX) don't activate.
Please cross reference all the bullet points below from Sean with other possible glitches besides these two obvious points listed.
· Defrost program switch: Activates a program that automatically selects: inlet air to fresh air; distribution to screen only; blower to speed 5; rear screen heater on; windshield heater on (where fitted), A/C system to automatic mode. An amber LED in the switch is illuminated while the defrost program is active.
Maximum Defrost
The maximum defrost function automatically provides the maximum defrosting of the vehicle. When the maximum defrost function is selected, the ATC module configures the control system as follows:
· Automatic mode off.
· Air inlet to fresh air, manual control.
· Selected temperature unchanged, automatic control.
· Air distribution set to screen mode, manual control.
· Blower speed set to speed 5, manual control.
· Rear screen heater and windshield heater (if applicable) selected on.
· A/C mode in automatic.
The maximum defrost function is cancelled by one of the following:
· Selecting any distribution switch. The system response will be identical to the normal manual distribution control operation.
· Selecting the automatic switch. This will restore the system to fully automatic operation.
· Selecting the maximum defrost switch again. This returns the system to the state in use immediately before the maximum defrost function was first selected.
· Turning the engine off.