This usually cannot be done except by returning it to the manufacturer.
The Garmin Nuvi 255 Automotive GPS System has a really good rating.
To load pictures onto a Garmin Nuvi 255 for the purposes of photo navigation:Connect your Garmin nuvi to your computerGo to http://connect.garmin.com/photos and sign inSelect the photo that you wish to add to your nuviFollow the on-screen instructions.Note that this basic process applies to several Garmin Nuvi 200-series models.For more information, refer to the owner's manual for the Garmin nuvi 255.
To activate an SD card for the Garmin Nuvi 255, insert the SD card into the device's card slot. Next, power on the device and ensure that it recognizes the card; you may see a prompt for additional maps or data. If required, use the Garmin Express software on your computer to register and download any necessary content for the SD card. Finally, follow any on-screen instructions for completing the setup.
The WT has lifetime traffic.
The Garmin Nuvi 255 is seen to be a very user friendly system. With the capability to speak street names as opposed to the distance you need to turn, the user is able to look at the road instead of at the screen for a street name. It also gives you the option for navigating as a pedestrian or in a car. A simple USB cable is all that is needed to charge the system.
Yes
can i replace a p255/60 r15 with a p215/70 r15
Probably not because of the rim width. The 255 is a wider tire.
Yes you can
Not unless you change the aspect ratio. For instance: If you have a 215/70-15 tire and you replace it with a 255/70-15 this would be a horrible swap as the 255/70-15 would be 7.58% larger in overall diameter. It is never advisable to go over 3% difference in size. Besides your speedometer would read 55.4 at a true 60 mph. If you want to install a 255 tire you will need to install a 255/60-15 to replace a 215/70-15 which is an excellent swap.
YES, no problem.
Yes, you can