All four windows have went out on this car. Ironically, the first two windows to go out were the rear windows which I never used. The window motor has a plastic gear that will not hold under pressure. Replacing the motor is only a temporary fix as the new motor has the same plastic gear.
This car leaks with the slightest rain and the carpets become soaked. No one has been able to find the source of the leak. I have to shampoo the carpets regularly to avoid a mildew smell.
The check engine light is always lit due to an emissions leak. No service repair shop can locate the source of the emissions leak.
I have had to replace the coil pack several times on this vehicle.
The only positive thing I can say about the car is the smooth ride. I bought this Buick because of the reputation for quality that Buick has, but I will never buy another Buick. Buick is aware of the faulty window motors on this model Le Sabre, but refuses to recall.
Next time, buy a Toyota or Lexus. You'll be glad you did.