See also:

Troubleshooting guide
The system should respond correctly to all voice commands without difficulty. If problems are encountered, try the following solutions. Where the solutions are listed by number, try each solution ...

Horn
To sound the horn, push the pad areaA of the steering wheel. WARNING Do not disassemble the horn. Doing so could affect proper operation of the supplemental front air bag system. Tampering w ...

To turn the system ON/OFF
Push the “OFF” or “ON·OFF” button when the heater and air conditioner is off. The system will turn on with the settings that were used immediately before the system was turned off. ...