Stop, place foot on brake, place vehicle in Neutral, Push 4wd lever forward, place vehicle in drive.
It has 'Full Time' 'All Wheel Drive" there is nothing to activate. You can put it in Low Range or High Range, but it is always driving all four wheels
The 4 wheel drive system on a 2002 Land Rover Discovery is engaged by pressing the 4 wheel drive button on the dash. It sends an electrical signal which activates the system.
All Land Rovers are all wheel drive. Some have a locking transfer case.
The 2002 Audi S6 has all wheel drive.
The 2002 Ford Escape has front wheel drive.
The 2002 Subaru Impreza has all wheel drive.
The 2002 Hyundai Accent has front wheel drive.
The 2002 Ford Expedition has rear wheel drive.
The 2002 Porsche 911 has rear wheel drive.
The 2002 Audi S4 has all wheel drive.
The 2002 Audi S8 has all wheel drive.
The 2002 Subaru Legacy has all wheel drive.