Turn off the vehicle and set the parking brake
Lift the wiper arm away from the windshield
Locate the wiper blade release tab or clip
Press or slide the release tab
Pull the wiper blade down and off the arm
If removing the entire wiper arm, lift the plastic cap at the base
Remove the retaining nut with the correct socket or wrench
Mark the arm position before removal
Wiggle the arm gently and lift it off the spindle
Store the removed parts safely