I bought my VX at the Gaithersburg Mazda/Isuzu dealership. The service quickly declined soon after the sale was final and I haven't taken it to a dealer since (save ONE diagnostic test that only Isuzu's computers can perform). If you know the tech then you are probably safe, but I personally wouldn't ever bring my VX back to them. Let us know if the situation over there has improved and deserves reconsideration.