2010 Toyota Highlander Owners Manual - Page 332

3-2. Using the audio system n Adjusting the Automatic Sound Levelizer (ASL) Type A and B When "ASL" is selected, turning to the right changes the amount of "ASL" in the order of "LOW", "MID" and "HIGH". Turning to the left turns "ASL" off. ASL automatically adjusts the volume and tone quality according to vehicle speed. Type C When "ASL" is selected, turning and turning to the right turns "ASL" on, to the left turns "ASL" off. "ASL" automatically adjusts the volume and tone quality according to the noise level as you drive your vehicle. n Setting the rear seat entertainment system lock (if equipped) When "RSE" is selected, turn until "ON"/"OFF" is displayed. The rear seat entertainment system lock remains on, even when the "ENGINE START STOP" switch or the engine switch is turned off. 306