Newbie Loving TD5 But problems lol

Hi there, im Dan and from sunny Boston Lincolnshire, just bought myself my first landy, Disco TD5 1999 manual, Lovely car and pulls well but have few lights on, had a look on here and 3 amigo come on after few miles, SRS light always on, plus the light in middle which looks like Truck with arrows coming out left and right? is that suspension? its on all time, Truck drives fine and not sagging on the airbags so would like any comments or help you have? Cheers Dan