Put on gloves to protect your hands.
When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
Use a plastic panel removal tool to remove interior trim pieces to protect from marring the surface.
Take care not to bend or scratch the trim and panels.
Disconnect the negative (-) battery terminal.
Using a screwdriver or remover, remove the center fascia panel (A).
Remove the heater control unit connectors (A).
Remove the heater control unit (A) with hazard switch.
(Refer to HA group - "Heater & A/C Control Unit")