Pioneer AVIC-505 Owner's Manual page 143

The display is very dim.
Possible causes:
Solutions:
• Read about the "AUTO DAY/NIGHT BACKGROUND" setting (page 112) and select
"OFF" if desired.
• A liquid crystal display is used, and such displays tend to darken when cold. Wait for the
vehicle to warm up.
There is no voice guidance or the volume is low.
Probable cause:
Solution:
• Check the volume setting on the display or turn the volume up according to "VOLUME
CONTROL" (page 118) and/or turn up the volume on the display.