Cadillac 2007 STS Owner's Manual page 208

Curves in the Road
CAUTION:
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Due to Adaptive Cruise Control limitations
in curves, it may respond to a vehicle in
another lane, or may not have time to
react to a vehicle in your lane. You could
crash into a vehicle ahead of you, or lose
control of your vehicle. Give extra
attention in curves and be ready to use
the brakes if necessary. Select an
appropriate speed while driving in curves.
Adaptive Cruise Control may operate differently in
a sharp curve. It may reduce your speed if the
curve is too sharp.
208
When following a vehicle and entering a curve,
Adaptive Cruise Control could lose track of
the vehicle in your lane and accelerate your
vehicle. When this happens, the vehicle ahead
symbol will not appear on the HUD.