NISSAN 2011 Altima - Manual (Page 97)

Fuel economy mode
The fuel economy mode can be selected to dis-
play the instant fuel economy since the last reset.
Average speed mode
The average speed mode can be selected to
display the average miles per gallon and miles per
hour since the last reset.
Time/Miles (km) mode
The time/miles (km) mode can be selected to
show the time and distance driven since the last
reset.
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2-18 Instruments and controls