2005 Pontiac Montana Owner's Manual - Page 218
2005 Pontiac Montana Manual
Page 218 highlights
Error Displays • An error of the vehicle's speed sensor or fuel sender will cause -E- to be displayed. RANGE (Trip Range): This shows the estimated distance that can be traveled with the remaining fuel. The fuel economy used to calculate range is based on the last few hours of driving. FUEL USED (Trip Fuel Used): This shows the accumulated fuel used since the last reset. AVG SPEED (Average Speed): This shows the average speed since the last reset. • In the absence of vehicle communications, a dash "- -" is displayed. If one of these error messages appear, see your dealer. Trip Computer There are five trip computer displays available by pushing the MODE button. The information will appear in the following order: AVG ECON (Average Fuel Economy): This shows the average fuel economy since the last reset. INST ECON (Instant Fuel Economy): This shows fuel economy for the most recent second of driving. 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 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. 3-54