general problems of the 1997 Kia Motor Sephia

Ongoing / intermittent problem with servere vibration within every 4-5 months after repairs were made by dealer. Vehicle has been at repair shop on three occasions, and problem reoccurs. Can NHTSA provide additional information.

While driving differential went out/ digital laser failed to work on cd panel/ power window electrical switch stopped working, and engine check light came on & did not go off. Dashboard covering was separating from window. There was water in the headlights, and battery would go dead. Took vehicle to dealer. Vehicle needed alignment due to problem with transmission & the brake assembly needed replacing due to excessive wear.