Volvo 2008 V70 Owner's Manual page 140

READ - confirms/erases messages
Thumb wheel - browse among menus and options in the trip computer list
RESET - resets certain functions
To scroll through trip computer information, move the thumb wheel up or down. Continue turning to return to the
starting point.
Functions
NOTE
If a warning message appears while you are using the trip computer, this message must be acknowledged in order to
return to the trip computer function. Acknowledge a message by pressing READ.
To change the unit of measure specified for distance and speed, contact an authorized Volvo workshop.
Average speed
The system calculates the average speed from the last resetting. Reset using RESET.
Current speed in mph (Canadian models only)
This function provides the driver with an instantaneous conversion of the car's current speed from km/h to mph.
Current speed in km/h (U.S. models only)
This function provides the driver with an instantaneous conversion of the car's current speed from mph to km/h.
Current fuel consumption (Instantaneous)
Current fuel consumption is calculated every second. The information on the display is updated every few seconds.
When the vehicle is stationary, "----" appears on the display.
Average fuel consumption
The average fuel consumption since the last reset. Reset using RESET.
Driving distance on current fuel reserve
The calculation is based on the average fuel consumption over the last 20 miles ( 30 km) and the remaining usable fuel
in the tank. This shows the approximate distance that can be driven with the fuel quantity remaining in the tank. When
the driving distance on the current fuel reserve is less than 12 miles ( 20 km),
the display.
NOTE
The actual distance that can be driven on the usable fuel remaining in the tank may be influenced by a change in
"---- miles to empty tank" is shown on