Use mirrors well before:-
• Changing speed
• Changing direction
• Signalling
Main mirror – change speed
Side mirror – change direction
All mirrors & blind spot – moving off
Mirrors are used in pairs
Main & right – moving right
Main & left – moving left
Check mirrors & blind spot – changing lane
Be aware of other road users.
React to what you see in your mirrors
Make sure it’s safe to change speed, change direction or signal
When you have checked it is safe, it is important to signal your intention
MIRROR, SIGNAL, MANOEUVRE