92 P/A Ultra

How is the security system in a 92 Park Avenue Ultra turned on when I exit the vehicle?
How is it turned off when I enter the vehicle?
How do you silence the alarm if it is activated?
I don't have an owners manual for the car.

Just like Maxwell House Coffee, "Straight From My House to Your House".
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Thanks HotZ28 for the quick reply and information!

Intermittent code 56 showing up and driving me crazy. I have heard 56 is so many different things. Help!