Lexus RX400h2006 Owner's Manual page 126

(5) Current fuel consumption ("CURRENT")
The current fuel consumption is calculated and displayed
based on distance and fuel consumption for 2 seconds.
Note that an accurate figure may not be shown in some cases.
GAUGES, METERS AND SERVICE REMINDER INDICATORS
Odometer and trip meter
1. Odometer only
"
1 Only odometer appears on the display.
2 When other mode is selected or warning message
appears, odometer moves to the reduced lower
display.
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