2007 Toyota Prius Owners Manual - Page 268

AUTOMATIC SOUND LEVELIZER (ASL) (Type 1 and Type 2 only) When the audio sound becomes difficult to be heard due to road noise, wind noise, etc. during driving, the system adjusts to the optimum volume and tone quality according to the noise level. Vehicles with compact disc changer: Touch the "ASL" switch. When the system is on, the sound adjustment level is displayed on the screen. Vehicles without compact disc changer: Touch the "DSP" switch to display the "ASL" screen. Touch "High", "Mid" or "Low" and then "OK". When you touch "High", you can obtain higher sensitivity of the sound levelizer. When you touch "Low", the sensitivity will be lowered. Touching "Off" turns the system off. YOUR RADIO ANTENNA To remove an antenna on the roof, carefully turn it counterclockwise. YOUR COMPACT DISC PLAYER When you insert a disc, gently push it in with the label side up. The discs set in the player are played continuously, starting with disc number 1. The disc number of the disc currently being played, the track number and the time from the beginning of the program appear on the display. Type 1 only: When play of one disc ends, the first track of the following disc starts. When play of the final disc ends, play of the first disc starts again. The player will skip any empty disc number. NOTICE To prevent damage to the antenna, make sure to remove it before driving through an automatic car wash. 251