A search function is embedded on the top left of the home screen but I'm not sure if you can get rid of it. (intomobile.com)
Just plugging your smart phone, and the tile will appear on the bottom left of the home screen, eventually. (cnet.com)
Press the gear icon at the top left of your home screen, choose User Settings, and use the sliding scale to set your geographic search zone. (blog.narrpr.com)