Thomas Auto Sales Goes back on promises then lies to customer. Hillsboro Oregon

You can refinance out of your current loan into a lower interest rate loan at any time. There is criteria that you have to meet to complete the refinance plus there is a restriction on the age and milage of the vehicle. Going  back to the dealer where you bought the vehicle is the worst place to try to refinance. They just don't do it except in rare circumstances and if they do the new loan will be worse than the old loan.

It is clear that the sales representative misinformed you. That is common especially with these small lots that specialize in subprime loans. Even if you had excellent credit - they aren't going to tell you that and will stick it to you with a high rate loan. That's why you should check out your own credit and have your own source of funds from an outside lender (bank or credit union) before you go car shopping. That way you control the purchase and the financing.

Check with your local credit union to see what their criteria is for a refinance. If you are upside down on the vehicle, then find out what the private party sale value is for your vehicle in its current condition. The private party value is higher than the trade value or the refinance value. You may not be that far upside down. Usually these small lot dealers give next to nothing for any type of trade because that is their business model.

Credit Unions are very good at giving low interest rate auto loans. What you don't want to do is carry over any negative equity from this current vehicle onto the next vehicle. So either sell it and bring cash to make up the difference between the sales price and the loan amount or refinance it. Good luck with your refinance.