Hi, Im sorry to heart that.
With this problem, it is the GPS itself that has fault.
This is one that WILL require technical service in order to fix that problem.
The problem is in the memory IC or RAM IC inside the GPS device and unfortunately nothing like a switch would help this.
That funny sound you hear, is an audible error message telling you there is a problem with the device.
You will need to have this serviced by a dealer, preferably the one you purchased the vehicle from.
If you bought this one used you can use any Suzuki dealer.
I wish I had better news for you on this, I really do.
In any case, I will stick with you until this is complete.
Please rate my service kindly.
Also it is the only way I am credited for my time and expertise with you.
Once you rate, I will be notified and will add your question to my priority list so you can reach me anytime until this problem is solved.
Then you can reach me by simply replying to this message anytime.
Thank you and have a great day!