2004 Pontiac Montana Owner's Manual - Page 132

This switch is in front of the driver's or the passenger's side sliding door. If the power sliding door(s) is open or in the process of closing when you shift out of PARK (P), a buzzer will sound. This is a warning that the sliding door(s) is not completely closed. If the power to the sliding door(s) is turned off, the buzzer will not sound indicating the door(s) is not completely closed. {CAUTION: The power sliding door override switch(es) will also stop the door(s) immediately, while the door(s) is opening or closing, when the override switch(es) is turned on. The power sliding door(s) will only open if the transaxle is in PARK (P). The transaxle does not have to be in PARK (P) to close the door(s). If you shift the transaxle out of PARK (P) and accelerate before the power sliding door latches closed, the door may reverse to the open position. A child or others could fall out of the vehicle and be injured. Always make sure the power sliding door is closed and latched before you drive away. 2-18