Remarkably reliable and doesn't rust even though we park it outside thanks to the aluminum body. I have heard nothing but horror stories from other people that have owned these, but ours had been trouble free for 152,000 miles and counting.
Too bad the fuel mileage is so bad and the resale value on them is really low. Luckily, we got ours used after it already took a big depreciation hit, so for us, it has been a great value.
Most Honda's make a low-level tick, especially once they get a few miles on them. If your Passport is still performing well and you're still getting good gas mileage, there shouldn't be too much to worry about. You can try an oil additive like Rislone or Restore to see if it alleviates the problem, or try our "Ask a Mechanic!" feature.
Depending on what year, make and model vehicle you own, there is usually some sort of button or place to insert your key on your dash to reset your vehicle's maintenance light. You can try your owners manual, call your local dealer or try our "Ask a Mechanic!" feature.