2001 Pontiac Montana Owner's Manual - Page 230

Resetting the Trip Computer Press and hold the MODE and E/M buttons for at least two seconds. The reset is acknowledged with the display showing all segments on briefly. A reset can only be done in AVG ECON, FUEL USED and AVG SPEED displays. AVG ECON, FUEL USED and AVG SPEED can only be reset independently. Only the mode that is displayed will be reset. Rear parking assist can be turned off by pressing the rear park aid disable switch located in the overhead console switchbank. Rear Parking Assist (Option) Rear parking assist can help you to determine how close an object is to your rear bumper within a given area, making parking easier. It is not intended to be used primarily as a rear obstacle detection system. The rear parking assist display is located inside the vehicle, above the rear window. It has three color-coded lights that can be seen through the rearview mirror. How the System Works If the rear park aid disable switch is not on, the rear parking assist will turn on automatically when the shift lever is moved into REVERSE (R) and the vehicle speed is less than 3 mph (5 km/h). When the system turns on, the three lights on the display will illuminate for 1.5 seconds to let you know that the system is working. Rear parking assist senses how close your vehicle is to an object. The distance is determined by the four ultrasonic sensors located on the rear bumper. 2-118