Mercedes-Benz GL-Class 2012 Owners Manual - Manual (Page 233)

X Press the V or U button on the
steering wheel to select the
Telephone
menu.
X Press the 6 button to switch to the
redial memory.
X Press the & or * button to select the
desired name or number.
X Press the 6 button to start dialing.
or
X If you do not want to make a call: press
the ~ or % button.
Menus and submenus
231
On-board computer and displays
Z