This is an online support service, so we can't physically repair it for you, but I can provide you with the necessary information and steps to get it replaced through magellan. They do not provide any type of repair service - in general gps devices like this are considered not to be repairable, they end up costing more to service than to replace.
There are some 3rd party repair options you could consider though that may be viable if this is just a bad switch.
Here is one recommended option: http://www.sharc.net/gps_repair.htm
You will need a Return Authorization (RA) number prior to shipping your product to Magellan for evaluation, which you get by calling ***-***-**** or email/chat:http://www.magellangps.com/Support/Contact-Us.
RMA Shipping Address:
Magellan Returns Center
c/o OHL (Ozburn-Hessey Logistics)
Attention: RA #
1251 S Perry Rd
Plainfield, IN 46168
If you have any other questions, just let me know. Otherwise, please take a moment to rate my service using the stars at the top of the page; hopefully I have earned 5 Stars. I also invite you to contact me directly with any future support needs at http://bit.ly/1QwLxGh and ask for Nathan.
Thank you, ***** ***** a nice day,