Thanks for using J/A / Pearl
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My answer may not be to your liking, but is a correct & honest answer.
Many times the only fix will be by Dealer or Shop, so please do not hold that against me.

Can you tell lme how to start the car using this fob,

There are a number of "AutoPage " Remote Starts & they start from different uses of the Remote.
You need to post the Model Number of the AutoPage Remote Start (not the remote), found on the Main Unit, typically under Driver dash.

Without the "Model Number", this is all I can provide:

Many of them start from "2" presses of the " * " button or a combination of II & *, or "2" presses of the II
These must be slow presses within 5 seconds
OR, hold down on the " * " until the Light on Remote goes out apprx 3 seconds