Go to
this website.
On the menu bar under "SERVICE/PARTS", fill out "Contact Us".
In the "Choose A Location" drop down box, select "Servco Toyota Honolulu".
Enter all the information and write your concern in the "Comment" text box.
Servco Toyota Honolulu is the one at Mapunapuna. Even if this location is inconvenient for you, I would recommend you to bring your car here for a problem like that. I too had a problem like you with the warranty when they only can schedule me for months away. But when I send them my concern here, they helped me "better". Better than month away, but nothing as close to the service you would get on the mainland. The service manager will call you after a few days. You explain your concern again over the phone to him and then he will explain to you what they can do.
Let me know how it goes. I've done this twice already. Once for this car and another time for my previous car.
Also, I don't know where you work at and what time, but they also have shuttle service. They will drop you off in the morning and pick you up in the afternoon. They leave at 7:30 am and 9 am.