tried the first time to run with Overdrive off on my A/T vitara. I just noticed that when I turn on my parklights the O/D light turns off. I tried to swap bulbs on the guage panel baka defective na but no improvements. It still turns off when I turn on my lights. Is this something that I have to worry about? Baka kasi if my lights are on and something is wrong with the tranny, I wouldnt know.