DeVille DTS V8-46L HVAC Control Module Technical Service Bulletins
Select "Instrument Panel Module (IPM)" from the menu.
Select "Special Functions" from the menu.
Select "Miscellaneous Test from the menu.
Select "IPM Recalibration" from the menu.
A message will appear after the reprogram has been successfully completed.
For DeVille and Seville Only
Install the Tech 2(R) to the vehicle and power on.
Select "Diagnostic" from the menu.
Build the vehicle from the menu options.
Select "Body" from the menu.
Build the vehicle from the menu options.
Select "Dash Integration Module (DIM)" from the menu.
Select "Special Functions" from the menu.
Select "Update HVAC Cals. in DIM" from the menu.
A message will appear after the reprogram has been successfully completed.
Warranty Information
For vehicles repaired under warranty, use the table.
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