Paddle Shifters are operable when the Rotary Dial Shifter is moved into the Drive (D) position.
Paddle Shifting: The system changes from automatic mode to manual mode when you pull the [+] or [-] paddle shifter
once to shift up or down one gear. 
Refer to section 6 in the Owner’s Manual for more information. Button configuration may vary. Images are for illustrative purposes only and may not reflect actual feature or operation.