[Overdrive]

The spoiler light coming on at startup is normal. It may depend on model year, but for mine at least, when you start moving and go about 5-10ft the light will go out. It's pretty much just a check system. If the light stays on then you've got an issue. I don't believe it is supposed to go out on its own after a certain amount of time, but again, it could have changed after a certain model year. I'm just going by what my manual says and my own experiences.

How do you know that the spoiler is not raising at speed? In normal operation it will raise around 75mph and retract once you drop below 55mph. Did you have someone in another vehicle observe you to see if this happened? If you're looking to have the spoiler stay up regardless of speed, then it is necessary for you to hit the switch by your foot to raise it manually once the car is running. However, once you shut the car off and start it again, the spoiler will resume its normal operation when your speed reaches 75mph.