Owner's Manual
Page 134
. . 'Your Buick may have Comfort Control. B/L(Bi-level): This setting is designed use on s m y days'whexe the for air is used to select the speed you' want the blbwer to contrdl the:& flow. Fan Speeds: The fan-control is only moderately warm or.-c6c?l. Your Bui&'s flow-through ventilation system supplies outside airinfo the vehicle whenit is,moving.When the heater or air c.onditioningfan is running, outside.air will also enter the-vehicle... , . n days like these, O this . . , . . . System.
. . 'Your Buick may have Comfort Control. B/L(Bi-level): This setting is designed use on s m y days'whexe the for air is used to select the speed you' want the blbwer to contrdl the:& flow. Fan Speeds: The fan-control is only moderately warm or.-c6c?l. Your Bui&'s flow-through ventilation system supplies outside airinfo the vehicle whenit is,moving.When the heater or air c.onditioningfan is running, outside.air will also enter the-vehicle... , . n days like these, O this . . , . . . System.