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 solutio ...

Control panel buttons — color screen with navigation system (if so equipped)
Control panel buttons — color screen with navigation system (if so equipped) 1. (brightness control) button 2. Display screen 3. MAP button* 4. NAV button* 5. TRAF button* 6. SETUP button ...

Clearing the programmed information
The following procedure clears the programmed information from both buttons. Individual buttons cannot be cleared. However, individual buttons can be reprogrammed, see “Reprogramming a single Ho ...