Radio Preset Memory Is Lost

Audio System Symptom Troubleshooting - Radio preset memory is lost

Radio preset memory is lost

1. Turn the ignition switch to ON (II).

2. Turn on the audio system and set each of the radio station preset buttons.

Does each of the buttons set properly?

YES -

Go to step 3.

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation or audio unit Audio Unit Removal/Installation.

3. Turn the ignition switch to LOCK (0) for 1 minute, then back to ON (II).

4. Test the preset buttons for proper recall operation.

Do the preset buttons recall the set radio stations?

YES -

The system is OK at this time.

NO -

- With navigation: Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.
- Without navigation: Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation.