Though "Key-in" Return at Hotel is usually not available for vehicles which Smart Key System is applied to, the following hotels offer a special assistance to enable it!

Dusit Thani Guam Resort
Fiesta Resort Guam
Guam Reef Hotel
Hilton Guam Resort & Spa
Holiday Resort & SPA Guam
Hyatt Regency Guam
Leo Palace Resort
Lotte Hotel Guam
Onward Beach Resort
Outrigger Guam Resort
Pacific Star Guam
Sheraton Laguna Resort
The Westin Resort Guam
(As of Oct 2019)