Low beam headlights shut off and will not turn back on. The high beams will come on, the fog lights work. Low beams will not work in auto mode, or manual. Tested dash board sensor, works correctly, changed low beam MINIrelay and fuses, twice, problem remains unresolved. Can sometimes leave car parked overnight, come out and low beams are working again. Never know when they will work and when they won't. was driving on interstate the other day and low beam headlights shut off while I was driving, was unable to see. Had to drive with high beams, other drivers on roadway were not happy about it. This is a huge safety concern. Took to dealer, low beams were working at the time and they were unable to diagnose because problem was not present when the vehicle was there.

- Fort Worth, TX, USA

Low beams suddenly cut out. Since then, low beams are ok when car is cold (in morning or after sitting for several hours) but then cut out again at random time after car warms up, and stay off until next time car is cold. High beams & fog lights work fine, all other lighting and functions work fine. Suspect failed connection at punch-down board inside fuse box for circuit that supplies power to low-beam relay, requiring fuse box replacement, as has been diagnosed with several other reported identical incidents in C6 model Corvettes (first introduced in 2005) that I discovered during online research. Dealer will diagnose during emergency appointment in 2 days. Could cause serious accident if lights suddenly cut out while driving at night on unlit road.

- Petaluma, CA, USA