How do you engage a-Trac?

In the realm of off-road vehicles and advanced traction systems, the a-Trac technology stands out as a premier solution for enhanced stability and traction. But how does one effectively engage this sophisticated system? Is it a simple button press, or does it require a more intricate sequence of steps? For those who aspire to harness the full potential of their off-roaders, understanding the engagement process of a-Trac is crucial. Whether it's a matter of selecting the right terrain mode or adjusting vehicle settings, we seek to uncover the precise steps involved in activating this advanced traction control. Could you elaborate on the procedure for engaging a-Trac, and perhaps offer any tips or tricks for optimizing its performance?