I also got the letter........
So, as realroland said, you can go to the Jeep Owners Website or go to NHTSA and plug in your VIN.
It will tell you if you are part of the recall......and I will bet you are not :
Here you go :
Check for Recalls: Vehicle, Car Seat, Tire, Equipment
I plugged the vin in and there are no open recalls...Saved me a 30 mile trip to the dealer.