The driver side mirror changes position, pointing down to the ground, erratically, usually when entering or leaving the car, or inserting the key, even though i am always using driver #1 key. i can reset it, use the memory button to save the position. it may work for several stops during a shopping trip, then change again on it's own. it is a safety hazard because when i want to change lanes i look at the mirror and it is pointed to the ground. the dealer where i always take my car for service, has not been able to determine the problem.