PF Changs in the Arboretum (Jollyville Road address) has Wheat-Free Soy Sauce.

Addresses of PF Changs in Austin, Texas:
Downtown
201 San Jacinto Boulevard
Austin, TX 78701
Phone: (512) 457-8300
(Part of Town: Downtown)

Arboretum
10114 Jollyville Road
Austin, TX 78759
(Part of Town: North)
Phone:(512) 231-0208
Cost: between and
Type of Food: Chinese

I e-mailed PF Changs HQ today and got these suggestions for eating GF at PF Changs:

Recommendations for Gluten-Intolerant Diets

Steamed fish of the day - ask for “No Sauce” - it will still come with ginger, scallions and hot oil. Ask for Substitute sauce.
Stir-fried Spinach and Garlic*
Steamed Buddha’s Feast*
Sugar Snap Peas*
Singapore Street Noodles* - make sure you order “No White Wine Sauce” use the substitute sauce.
Cantonese Shrimp or Scallops - order “No White Wine Sauce” - use the substitute sauce.
Ginger Chicken and Broccoli- Steamed, “No Sauce” use the substitute sauce.
Cantonese Chow Fun- Order “Substitute Noodles" - Rice Sticks (Angel Hair). Order “Substitute Sauce”
Lemon Chicken**
Lemon Scallops**
Oriental Chicken Salad
Cold Cucumber Salad - order “No Soy Sauce”

Substitute Sauce = Garlic, Ginger, Rice Wine, Chicken Stock, Sichuan Pepper, Salt and Sugar***

* You can add any of our marinated Chicken, Shrimp, Scallops, or Calamari (these marinades contain Corn Starch).

** These dishes contain both Potato and Corn Starches.

*** This sauce actually works well as a flavorful substitution to a lot of dishes that have our Dark Sauce or Kung Pao Sauce.

Most importantly please inform your server of your condition they will make sure the chefs understand your requests. Also ask the manager or chef if they carry “wheat free” soy sauce in the restaurant.

Pf Changs is "rolling out a Gluten Free menu with recommendations into all of our restaurants…we have come to realize how prevalent this is and we are very happy to accommodate our guest with special dietary needs" What a GREAT thing for a restaurant to say!