2008 Toyota Camry Navigation Manual - Page 171

AUDIO SYSTEM D Automatic sound levelizer (ASL) When the audio sound becomes difficult to be heard due to road noise, wind noise or other noises while driving, the system adjusts to the optimum volume according to the noise level. To turn this function on, touch "ASL" on the audio control screen. 3. Touch the desired button. "TREB" "+" or "-": Adjusts high−pitched tones. "MID" "+" or "-": Adjusts mid−pitched tones. "BASS" "+" or "-": Adjusts low−pitched tones. "FRONT" or "REAR": Adjusts sound balance between the front and rear speakers. "L" or "R": Adjusts sound balance between the left and right speakers. 4. Touch "OK". The tone of each mode (for such as AM, FM1 and CD changer) can be adjusted. 191