2 YEARS INTO OWNING A NISSAN ALTIMA SV THE LOW BEAM HEADLIGHTS SUDDENLY WENT DIM. THE CAR WAS RETURNED TO THE NISSAN DEALER, NO LESS THAN 5 TIMES, WITH NO SOLUTIONS. MY HUSBAND HAS CHANGED THE BULBS MULTIPLE TIMES, WITH NO IMPROVEMENT. WE ARE FORCED TO DRIVE THE CAR WITH HIGHBEAMS ON FOR VISIBILITY. VISIBILITY IS LESS THAN 20 FT AT NIGHT, WORSE WITH RAIN OR FOG. THIS IS A COMMON ISSUE WITH 2013-2015. NISSAN NEEDS TO CORRECT HIS PROBLEM