I cannot unlock the car. Outback 1999 outback legacy

It's probably the fob that takes a battery? I'm sure that you've replaced it before if you have had this car for any length of time, but, if this car is new to you, you can go to any Subaru dealership and get a battery in their parts department and I've found that when you purchase it there they'll be kind enough to open up the device and put the battery in for you. Some of are a little trickier than others even according to the guys working in parts so they're glad to help you out. Plus, if the battery is bad you'll know that as soon as you walk back to your car. Good luck. Now, if the key is bad, there are locksmiths who can make you a new key, but, its going to cost you about $300. Do you still have the valet key? That should open up the door and will start your car.

Thank you for the advise. I will take the keys to the dealer Monday.