My 1999 had same problem. I could pull slightly back on idicator arm and they worked. Moving the tilt up and down is really doing the same thing. It cost me $240 at the dealer to correct. I could be wrong but I bet you it's the indicator switch mechanism in the column. It seems to be a common problem on Luminas if you read some of the threads. I didn't dig into it because of the security system and air bag plus I just didin't have time to mess with it.