The suction cup mount is the only complaint that I have with the Nuvi 350. When it is hot out and sun shining in, traveling on the wonderfully perfectly smooth roads that are everywhere in this country

, I find that after a few good jolts, mine ALWAYS breaks loose from the suction and falls down. I clean the surface squeaky clean, and it doesn't matter. My solution was to simply apply heavy duty grade velcro to the suction cup itself. Now it stays in place, and I have a velcro strip in 3 vehicles so I can swap it wherever I want. Great device after fixing this problem.