Lexus RX 450h 2010 Owner's Manual page 173

2-1. Driving procedures
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Selecting eco mode
When the vehicle is driven in eco mode, vehicle driving force and
operation of the air conditioning system is controlled to improve fuel
efficiency.
STEP 1
STEP 2
172
Press the menu switch.
The multi-information display
will change modes to electronic
features control mode.
Press the "ENTER" switch
upwards or downwards until
"ECO MODE" appears.
Press the "ENTER" switch to
change to "ON".
The "ECO MODE" indicator
will be displayed.
Each pressing of the switch
turns eco mode on and off.
Press the menu switch to
change to the normal display.