radio controls KIA Optima 2012 3.G Owner's Manual

KIA Optima 2012 3.G Owner's Manual Optima 2012 3.G KIA KIA https://www.carmanualsonline.info/img/2/2933/w960_2933-0.png KIA Optima 2012 3.G Owner's Manual

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KIA Optima 2012 3.G Owners Manual 4121
Features of your vehicle
Steering wheel audio controls 
(if equipped) 
The steering wheel may incorporate
audio control buttons.
VOLUME ( /  ) (1)
 Press the lever upward ( ) to increasethe volum