headlights don't work on 2006 Pontiac Grand Prix

2006 Pontiac Grand Prix low beam headlights don't work.

Asked by for the 2006 Pontiac Grand Prix
It's possible that the switch is failing, and you have lo-beam headlight relay #35 and 10A fuses #3 and #4 supplying power to the lo-beams. Check the relay and fuses. It's possible that both lo-beam filaments burned out at the same time, which can result from bad battery connections. If the bulbs turn out to be the problem, check your battery connections.