I took my Hyundai Sonata to the dealer on Monday to get an oil change and to get a light bulb in the dashboard replaced (the ESC-Off light). The Sonata's Electronic Stabilization Control (ESC) system has two lights: the ESC light comes on when the system actives, and the ESC-Off light comes on when you turn the system off. My ESC-Off light doesn't come on when I turn the system off.
I thought it would take an hour or so to fix at most. I didn't expect them to not even be able to fix such a simple problem. Note that this is after I called them about the problem weeks ago and had them order the necessary parts. Now they want me to bring the car back for a full day, which is exactly what I wanted to avoid. The reason I waited until my scheduled oil change to get the light fixed was so I wouldn't have to make an extra trip to the dealer.
At least it's covered under warranty.