See also:

Checking the wiper blades
Run the tip of your fingers over the edge of the blade to check for roughness. Clean the wiper blades with washer fluid or water applied with a soft sponge or cloth. CHANGING THE WIPER BLADES ...

General information on radio frequencies
This device complies with part 15 of the FCC Rules and with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause harm ...

Principles of operation
WARNING: Never let a passenger hold a child on his or her lap while the vehicle is moving. The passenger cannot protect the child from injury in a crash.\ WARNING: It is extremely dangerous to ride ...