1999 Pontiac Montana Owner's Manual - Page 123

yellowblue The power sliding door on/off switch will also stop the door immediately, while the door is opening or closing, when the switch is turned off. The power sliding door will only open if the transaxle is in PARK (P). The transaxle does not have to be in PARK (P) to close the door. If the power sliding door 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 is not completely closed. If the power sliding door is turned off, the buzzer will not sound indicating the door is not completely closed. CAUTION: 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. If anything obstructs the power sliding door while it is closing, the door will automatically reverse to the open position, provided it meets sufficient resistance. Resistance must be as strong as the force of the closing door, or stronger. The force of the closing door increases significantly as the door approaches the latched position. 2-27