Acura 2010 RL - Manual (Page 336)

To switch from ACC to cruise
control, press the distance button on
the steering wheel, and hold it for 1
second.
Always be aware which mode is
selected.
When the cruise control is selected,
ACC does not sound a beeper or
display a message on the multi-
information display. Make sure to
keep a safe distance from the vehicle
ahead of you. When you press the button, you will
see CRUISE MODE SELECTED on
the multi-information display for 2
seconds. To switch back to ACC,
press and hold the distance button
again for 1 second.
Switching to Cruise Control
Adaptive Cruise Control (ACC)
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DISTANCE BUTTON
Press the distance button.
2010 RL