Whether you can put 17-inch tires on your existing wheels depends on the specific dimensions of your wheels and tires. As long as the overall diameter of the tire remains the same, you should be fine to use 17-inch tires on your current rims. However, if the bolt patterns and offset for the wheel are not a perfect match for your existing tires, then it’s not advisable to use them together as they may not be safe or perform properly.
To be sure, you should look up the specifications for your vehicle's wheels and tires in the owner's manual or refer to the vehicle manufacturer's website. You should also consult with a tire expert to ensure that the 17-inch tires you intend to use are the right size and fit for your vehicle.