I would think you have a few more years but would check with the manufacture of your tires. My understanding is in the past nearly all manufacturers recommended replacing at 5 years, but many have extended that to 10 years many years ago. I would anticipate the manufactures have an incentive to be conservative in their life span so I might add a few additional years. I would also taking to consideration the speed you drive. For example I purchased a 20 year old used vehicle that had very old tires. I had a 500 mile drive to get the vehicle home, so I selected the tires, the store, and checked local inventory before leaving home drove straight to the tire shop on surface streets.Tires on my 17 Regal GS are 2016 with 25K, plenty of tread an sidewalls look good, Pirelli P Zero's, car is garage kept. checking the web anywhere from 6 to 8 years is recommended. would hate to have to buy new tires with these looking as good as they are. Only complaint is that they are getting noisy.