Defensive driving means "always expect the unexpected." The first step in driving defensively is to wear the seat belt. See Seat Belts.
Anticipate what they might do and be ready.
Distracted Driving
Drunk DrivingBrake System
Visually inspect brake lines and
hoses for proper attachment,
connections, binding, leaks, cracks,
chafing, etc. Inspect disc brake
pads for wear and rotors for surface
condition. Inspect drum brake
linings/shoes for wear or cracks.
Inspect all other brake parts.
Steering, Suspension, and
...