See also:

Cell Phones Warning
WARNING: Please comply with the legal regulations concerning the use of communication equipment in vehicles in your State or Province: Use of any electrical devices such as cell phones, computers, ...

Reporting Safety Defects (U.S.A.)
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in ...

Horn
To sound the horn, press the mark on the steering wheel. ...