A/C heater fix on a 19 plate Nissan Navara NP300 ?

The A/C heater part of my instrument panel doesn’t come on with the ignition switch. You have to press one of the buttons on the panel to switch it on and you get a bazaar setting witch you have to adjust back to where you left it the last time I drove it. This didn’t happen with my last NP300. Any help would be much appreciated.